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Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
Overview The quality of a power supply alone cannot guarantee a disturbance-free 24 V. Various risks, such as power failures, extreme line voltage fluctuations etc., can disturb plant or system operation and result in significant costs. Various SITOP expansion modules facilitate the completely flexible expansion of SITOP power supplies, and offer reliable protection against the widest range of risks.
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Overview SITOP PSE202U redundancy modules The key benefits of this product include: • High 24 V supply reliability as a result of the redundant structure • Reliable supply even if one power supply unit fails • Compact redundancy modules for power supplies up to 40 A •...
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Overview Buffer module SITOP BUF1200 The key benefits of this product include: • Only 2 cables are required to connect to the basic module • Protection against brief power failures • 300 ms up to max. 240 s buffer time depending on the load current •...
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Overview SITOP PSE201U buffer module The key benefits of this product include: • Only 2 cables are required to connect to the basic module • Protection against brief power failures • 100 ms up to max. 10 s buffer time depending on the load current •...
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Overview Inrush current limiter Logo! ICL230 The key benefits of this product include: • Inrush currents are reliably reduced • Can be used on 1-phase AC line supplies with rated voltages of 100 V, 120 V or 230 V • Can be used on 2-phase AC line supplies with a rated voltage of 208 V •...
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Overview SITOP inrush current limiter The key benefits of this product include: • Inrush currents are reliably reduced • Can be used on 1-phase AC line supplies with rated voltages of 100 V, 120 V or 230 V • Can be used on 2 and 3-phase AC line supplies with rated voltages of 208 V to 480 V •...
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Overview Ordering data The following device versions are available: Expansion modules Type Order number Redundancy module SITOP RED1200 6EP4346-7RB00-0AX0 input/output 12 - 48 V DC/20 A Redundancy module SITOP RED1200 6EP4347-7RB00-0AX0 input/output 12 - 48 V DC/40 A Redundancy module SITOP RED1200 6EP4348-7RB00-0AX0 input/output 12 - 48 V DC/80 A Redundancy module SITOP PSE202U...
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Table of contents Ambient conditions ........................... 105 Applications ............................107 Redundancy circuit for increased system availability ............107 Design of 24 V load feeders with power limiting according to NEC class2 ......110 Protection against short-time voltage dips ................ 111 Environment ............................
Safety instructions General safety instructions WARNING Correct handling of the devices When operating electrical devices, it is inevitable that certain components will carry dangerous voltages. Therefore, failure to handle the units properly can result in death or serious physical injury as well as extensive property damage.
Safety instructions 1.2 Safety instructions for hazardous zones Safety instructions for hazardous zones It is only permissible that the devices listed below are used in hazardous zones. 1.2.1 Redundancy module SITOP RED1200 Ex (6EP4347-7RC00-0AX0) The device complies with ATEX directive 2014/34/EU: EN IEC 60079-0; EN 60079-7; UKSI 2016: 1107: BS EN IEC 60079-0;...
Description, device design, dimension drawing Device description 2.1.1 Redundancy modules 2.1.1.1 SITOP RED1200 Redundancy modules SITOP RED1200 are the optimal addition to all 12 - 48 V power supplies to provide additional protection against failure of the 12 - 48 V supply. The redundancy module continuously monitors the feeding power supplies, and when one device fails, the other one automatically takes over the complete 12 - 48 V supply.
Description, device design, dimension drawing 2.1 Device description 2.1.1.2 SITOP PSE202U Redundancy modules SITOP PSE202U are the optimum addition to all 24 V power supplies to provide additional protection against failure of the 24 V supply. The redundancy module continuously monitors the feeding power supplies, and when one device fails, the other one automatically takes over the complete 24 V supply.
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Description, device design, dimension drawing 2.1 Device description ① 24 V input – supply voltage from power supplies 1 and 2 as well as 0 V connection to the inter- nal supply ② 24 V output – supply voltage to the load and floating relay contact ③...
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Description, device design, dimension drawing 2.1 Device description ① 24 V input – supply voltage from power supplies 1 and 2 as well as 0 V connection to the inter- nal supply ② 24 V output – supply voltage to the load and floating relay contact ③...
Description, device design, dimension drawing 2.1 Device description 2.1.2 Buffer modules 2.1.2.1 SITOP BUF1200 The buffer module SITOP BUF1200 buffers brief power failures in the seconds range and can be used with all SITOP smart and SITOP modular 24 V power supplies. The buffer module uses maintenance-free capacitors as energy storage devices and automatically supplies 24 V in the event that the power supply voltage fails.
Description, device design, dimension drawing 2.1 Device description 2.1.2.2 SITOP PSE201U The SITOP PSE201U buffer module buffers brief power failures in the seconds range and can be used with all SITOP smart and SITOP modular 24 V power supplies. The buffer module uses maintenance-free capacitors as energy storage devices and automatically supplies 24 V in the event that the power supply voltage fails.
Description, device design, dimension drawing 2.1 Device description 2.1.3 Inrush current limiter 2.1.3.1 Logo! ICL230 The Logo! ICL230 inrush current limiter is used to reliably reduce inrush currents, e.g. caused by LEDs, transformers or switched-mode power supplies as a result of the rectifier circuit at the input with capacitor charging.
Description, device design, dimension drawing 2.1 Device description 2.1.3.2 SITOP inrush current limiter The SITOP inrush current limiter is used to reliably reduce inrush currents, e.g. caused by transformers or switched-mode power supplies as a result of the rectifier circuit at the input with capacitor charging.
Description, device design, dimension drawing 2.2 Connections and terminal designation Connections and terminal designation 2.2.1 Redundancy modules 2.2.1.1 SITOP RED1200 Note Use suitable copper cables that are designed for operating temperatures of at least 90 °C (UL 508: 60/75 °C). Connections and terminal designations of redundancy module 6EP4346-7RB00-0AX0 ①...
Description, device design, dimension drawing 2.2 Connections and terminal designation Figure 2-10 Terminal data 6EP4347-7RB00-0AX0, 6EP4348-7RB00-0AX0 and 6EP4347-7RC00-0AX0 2.2.1.2 SITOP PSE202U Note Use suitable copper cables that are designed for operating temperatures of at least 60/75 °C. The cables must be certified for at least 90 °C for the 6EP1964-2BA00 device. Connections and terminal designations of redundancy module 6EP1961-3BA21 ①...
Description, device design, dimension drawing 2.2 Connections and terminal designation Connections and terminal designations of the redundancy modules 6EP1962-2BA00 and 6EP1964-2BA00 ① Input 24 V supply voltage from power supplies Plug-in terminal each with a screw terminal 1 and 2 "IN 24V-1", "IN 24V-2" 0 V connection to the internal supply "GND"...
Description, device design, dimension drawing 2.2 Connections and terminal designation Figure 2-13 Terminal data 2.2.2.2 SITOP PSE201U Note Use copper wire certified for at least 75 °C. Connections and terminal designations ① 24 V DC supply voltage "+", "-" 1 screw terminal each 16 mm for square crimping, otherwise 10 mm Figure 2-14...
Description, device design, dimension drawing 2.2 Connections and terminal designation 2.2.3 Inrush current limiter 2.2.3.1 Logo! ICL230 Note Use copper cable certified for use at 90 °C. Connections and terminal designations ① Input "L1", "N" One screw terminal each ② Output "L1", "N" One screw terminal each Figure 2-15 Terminal data...
Description, device design, dimension drawing 2.2 Connections and terminal designation 2.2.3.2 SITOP inrush current limiter Note Use suitable copper cables that are designed for operating temperatures of at least 60/75 °C. Connections and terminal designations ① Input "L1", "N" One screw terminal each ②...
Description, device design, dimension drawing 2.3 Potentiometer Potentiometer 2.3.1 SITOP PSE202U redundancy modules The potentiometer ④ at the front of the device is used to set the response threshold of the LED signal and the signaling contact; it can be set in the range from 20 V up to 25 V. (when delivered, 20 V) Figure 2-17 Potentiometer 6EP1961-3BA21...
Description, device design, dimension drawing 2.4 Status displays and signaling Status displays and signaling 2.4.1 SITOP PSE202U redundancy modules Figure 2-19 Operating display and signaling Operating display and signaling 6EP1961-3BA21 LED ⑤ lights up green Both input voltages > switching threshold LED ⑤...
Description, device design, dimension drawing 2.4 Status displays and signaling 2.4.2 Buffer modules 2.4.2.1 SITOP BUF1200 Figure 2-20 Signaling Status indicator 6EP4231-7HB00-0AX0 and 6EP4231-7HC00-0AX0 LED ② "O.K." lights up green Buffer module fully charged LED ② "O.K." lights up green Buffer module is being charged, buffer mode possible flashing (0.5 Hz) LED ②...
Description, device design, dimension drawing 2.4 Status displays and signaling 2.4.3 Inrush current limiter 2.4.3.1 Logo! ICL230 Figure 2-22 Status indicator Status indicator 6EP4683-6LB00-0AY0 LED ③ lights up green Normal operation LED ③ off Supply voltage missing SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Description, device design, dimension drawing 2.4 Status displays and signaling 2.4.3.2 SITOP inrush current limiter Figure 2-23 Status indicator Status indicator 6EP1967-2AA00 LED ③ lights up green Normal operation LED ③ off Supply voltage missing SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Mounting/removal WARNING Installing the device in a housing or a control cabinet SITOP expansion modules are chassis devices. They must be installed in a housing or control cabinet where only qualified personnel have access. Redundancy modules 3.1.1 SITOP RED1200 The device can be mounted in a control cabinet on standard mounting rails (see Chapter Mechanical system (Page 93)) Mounting To mount the device, position it with the mounting rail guide at the upper edge of the...
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Mounting/removal 3.1 Redundancy modules Removing To remove, pull up the slider ③ using a screwdriver (see Figure 3-1 Mounting/removal (Page 46)) and disengage the device at the bottom edge of the standard mounting rail. Then you can remove the device from the upper edge of the standard mounting rail. Figure 3-1 Mounting/removal WARNING...
Mounting/removal 3.1 Redundancy modules 3.1.2 6EP1961-3BA21 The device can be mounted in a control cabinet on standard mounting rails (see Chapter Mechanical system (Page 93)) Mounting To mount the device, position it with the mounting rail guide at the upper edge of the standard mounting rail and press down to lock it into place.
Mounting/removal 3.1 Redundancy modules 3.1.3 6EP1962-2BA00 and 6EP1964-2BA00 The device can be mounted in a control cabinet on standard mounting rails (see Chapter Mechanical system (Page 93)). Mounting To mount the device, position it with the mounting rail guide at the upper edge of the standard mounting rail and press down to lock it into place.
Mounting/removal 3.2 Buffer modules Buffer modules 3.2.1 SITOP BUF1200 The device can be mounted in a control cabinet on standard mounting rails (see Chapter Mechanical system (Page 93)). Mounting To mount the device, position it with the mounting rail guide at the upper edge of the standard mounting rail and press down to lock it into place.
Mounting/removal 3.2 Buffer modules WARNING Use in hazardous zones If device SITOP BUF1200 Ex (6EP4231-7HC00-0AX0) is installed in a hazardous zone (II 3G Ex ec IIC T4 Gc) then it must be installed in a distribution box with degree of protection IP54 or higher.
Mounting/removal 3.3 Inrush current limiter Inrush current limiter 3.3.1 Logo! ICL230 The device can be mounted in a control cabinet and snapped onto standard mounting rails (see Chapter Mechanical system (Page 93)), or can be mounted on walls and panels using the withdrawable mounting lug (see Figure 3-7 Wall/panel mounting (Page 52)).
Mounting/removal 3.3 Inrush current limiter 3.3.2 SITOP inrush current limiter The device can be mounted in a control cabinet on standard mounting rails (see Chapter Mechanical system (Page 93)). Mounting To snap on, attach the device to the top of the mounting rail (I), press down gently (II), press- in the lower side (III) and snap it into place (IV).
Mounting position, mounting clearances Standard mounting position Expansion modules must be mounted vertically in such a way that - 6EP1961-3BA21 terminals are at the bottom - 6EP1962-2BA00 terminals "OK" and "OUT 24V" are at the bottom - 6EP1964-2BA00 terminals "OK" and "OUT 24V" are at the bottom - 6EP1961-3BA01 terminals are at the bottom - 6EP1967-2AA00 input terminals are at the top and the output terminals at the bottom.
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Mounting position, mounting clearances 4.1 Standard mounting position Output current as a function of the ambient temperature and mounting height Buffer module 6EP4231-7HB00-0AX0: -25 … 70 °C without derating Buffer module 6EP1961-3BA01: -25 … 70 °C without derating Inrush current limiter 6EP1967-2AA00: -25 … 60 °C without derating Inrush current limiter 6EP4683-6LB00-0AY0: -40 …...
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Mounting position, mounting clearances 4.1 Standard mounting position Figure 4-4 6EP1961-3BA21: Output current in the standard mounting position Figure 4-5 6EP1962-2BA00: Output current in the standard mounting position Figure 4-6 6EP1964-2BA00: Output current in the standard mounting position SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Mounting position, mounting clearances 4.2 Other mounting positions Other mounting positions 4.2.1 Other mounting positions For mounting positions that deviate from the standard mounting position, derating factors (reduction of the output power or the permissible ambient temperature) must be observed in accordance with the following diagrams.
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Mounting position, mounting clearances 4.2 Other mounting positions Figure 4-9 Mounting position 2 Figure 4-10 Mounting position 3 Figure 4-11 Mounting position 4 SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Mounting position, mounting clearances 4.2 Other mounting positions 4.2.4 Buffer modules 4.2.4.1 SITOP BUF1200 (6EP4231-7HB00-0AX0 and 6EP4231-7HC00-0AX0) For buffer modules 6EP4231-7HB00-0AX0 and 6EP4231-7HC00-0AX0, the following applies: -25 ... 70 °C without derating for all mounting positions. 4.2.4.2 SITOP PSE201U (6EP1961-3BA01) For buffer module 6EP1961-3BA01, the following applies: -25 ...
Installation WARNING Hazard due to electric shock Before installation or maintenance work can begin, the system's main switch must be switched off and measures taken to prevent it being switched on again. If this instruction is not observed, touching live parts can result in death or serious injury. Copper wire that as a minimum must comply with the subsequent temperature requirement must be used to wire the devices.
Installation 5.1 Input connections Input connections NOTICE Country-specific regulations must be observed when installing. 5.1.1 Redundancy modules 5.1.1.1 SITOP RED1200 Inputs "DC IN1" and "DC IN2" of the redundancy module must be connected with outputs "+" of the power supplies. Figure 5-1 Input/output SITOP expansion modules...
Installation 5.1 Input connections 5.1.1.2 SITOP PSE202U Inputs "IN 24 V-1" and "IN 24 V-2" of the redundancy module must be connected with outputs "+" of the power supplies and input "GND" of the redundancy module with outputs "-" of the power supplies.
Installation 5.1 Input connections 5.1.2 Buffer modules 5.1.2.1 SITOP BUF1200 The buffer module is connected in parallel with the SITOP power supply. To do this, input/output "+" of the buffer module must be connected with output "+" of the power supply, and input/output "-"...
Installation 5.1 Input connections 5.1.3 Inrush current limiter 5.1.3.1 Logo! ICL230 The inrush current limiter is connected between the line supply and the power supply to be supplied. It is suitable for connection to 1-phase AC line supplies with 100 V, 120 V or 230 V 50-60 Hz or to 2-phase line supplies with 208 V line voltage on the line side, upstream of transformers, power supplies or LEDs, and using the integrated fixed resistor, it limits the inrush current to approx.
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Installation 5.1 Input connections Depending on the particular application, the input terminals should be connected as shown in the following wiring diagram: Figure 5-8 Wiring diagram SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Installation 5.2 Output connections Output connections 5.2.1 Redundancy modules 5.2.1.1 SITOP RED1200 Output "DC OUT1" of the redundancy module must be connected to the load. See Figure 5-1 Input/output (Page 74). The subsequent wiring is recommended to guarantee safe and reliable operation of the power supplies in all operating states: Figure 5-9 Wiring 1 module (2 ×...
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Installation 5.2 Output connections To achieve an output voltage of 24/48/96 V DC, two 12/24/48 V SITOP power supplies of the same type can be connected in series. Depending on the grounding point of the secondary output voltage, voltages of +24/48/96 V, ±12/24/48 V or -24/48/96 V can be realized. To guarantee safe and reliable operation of the power supplies in all operating states, for the series connection, the subsequent wiring using two redundancy modules SITOP RED1200 is recommended.
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Installation 5.2 Output connections Figure 5-13 Series connection for increased voltage 2 WARNING SELV (ES1) cannot be guaranteed in the case of a fault When connecting two power supplies in series, the continuous, permissible SELV (ES1) voltage of maximum 60 V DC according to EN 61204-7 cannot be guaranteed in the case of a fault.
Installation 5.2 Output connections 5.2.1.2 SITOP PSE202U Output "Out 24 V" of the redundancy module must be connected with the load. Note The output cable of the redundancy module must have a cable cross-section that can conduct the maximum total current of both supplying power supplies. Figure 5-14 Output 6EP1961-3BA21 Figure 5-15...
Installation 5.2 Output connections The subsequent wiring is recommended for the 6EP1961-3BA21 to guarantee safe and reliable operation of the power supplies in all operating states: Figure 5-16 Wiring note 5.2.2 Buffer modules 5.2.2.1 SITOP BUF1200 See SITOP BUF1200 (Page 76) 5.2.2.2 SITOP PSE201U See SITOP PSE201U (Page 76)
Installation 5.2 Output connections 5.2.3 Inrush current limiter 5.2.3.1 Logo! ICL230 The power supply to be supplied is connected at the output terminals of the inrush current limiter. Figure 5-17 Output 5.2.3.2 SITOP inrush current limiter The power supply to be supplied is connected at the output terminals of the inrush current limiter.
Technical data Note Technical data apply for a rated input voltage, rated load and 25 °C ambient temperature, if nothing else is specified. Input 6.1.1 Redundancy modules 6EP4346-7RB00-0AX0 6EP1961-3BA21 6EP1962-2BA00 6EP4347-7RB00-0AX0 6EP1964-2BA00 6EP4348-7RB00-0AX0 6EP4347-7RC00-0AX0 Input DC voltage DC voltage DC voltage Rated input voltage U 12 - 48 V 24 V...
Technical data 6.1 Input 6.1.3 Inrush current limiter 6EP4683-6LB00-0AY0 6EP1967-2AA00 Input 1 and 2-phase AC 1, 2 and 3-phase AC Rated input voltage U 100 - 240 V 100 - 480 V in rated Voltage range 85 - 264 V 85 - 575 V Line frequency range 47 - 63 Hz...
Technical data 6.2 Output Output 6.2.1 Redundancy modules 6EP4346-7RB00-0AX0 6EP4347-7RB00-0AX0 6EP4348-7RB00-0AX0 6EP4347-7RC00-0AX0 Output DC voltage Rated output voltage 12 - 48 V 12 - 48 V 12 - 48 V out rated Output voltage - approx. 0.6 V - approx. 0.6 V - approx.
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Technical data 6.2 Output SITOP PSE201U 6EP1961-3BA01 Output DC voltage Output voltage - approx. 1 V Output current (rated value) 40 A Buffer time: for 40 A load current: 200 ms for 20 A load current: 400 ms for 10 A load current: 800 ms for 5 A load current: 1.6 s When using 6EP1437-3BA10 the buffer time is reduced by 100 ms.
Technical data 6.2 Output 6.2.3 Inrush current limiter 6EP4683-6LB00-0AY0 6EP1967-2AA00 Output corresponding to the supply voltage Rated output voltage U corresponding to the supply voltage out rated Can be connected in parallel to increase the power rating Maximum operating current 10 A Limiting value starting current Approx.
Technical data 6.3 Protection and monitoring Protection and monitoring 6.3.1 Redundancy modules 6EP1962-2BA00 Current limiting The output switches off for an overload condition. Can be switched on again using the RST button, or by switching both load power supplies off and on again. 6.3.2 Buffer modules 6EP4231-7HB00-0AX0...
Technical data 6.4 Mechanical system 6.4.3 Inrush current limiter 6EP4683-6LB00-0AY0 6EP1967-2AA00 Connection system Screw connection Screw connection Connections: Line input L, N 1 screw terminal each L, N 1 screw terminal each for 0.5 - 2.5 mm² solid/finely stranded for 0.5 - 2.5 mm² solid/finely stranded Connections: Output +, -, N 1 screw terminal each L, N 1 screw terminal each...
Technical data 6.6 Dimension drawing Dimension drawing 6.6.1 Redundancy modules See chapter Redundancy modules (Page 36) CAD data that can be downloaded from the Internet: 6EP4346-7RB00-0AX0 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_01519) 6EP4347-7RB00-0AX0 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_01522) 6EP4348-7RB00-0AX0 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_01880) 6EP4347-7RC00-0AX0 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_01877) 6EP1961-3BA21 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_00529) 6EP1962-2BA00 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_00710) 6EP1964-2BA00 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_00713) 6.6.2...
Technical data 6.6 Dimension drawing 6.6.3 Inrush current limiter See chapter Inrush current limiter (Page 42) CAD data that can be downloaded from the Internet: 6EP4683-6LB00-0AY0 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_01483) 6EP1967-2AA00 (http://www.automation.siemens.com/bilddb/index.aspx?objKey=G_KT01_XX_00349) SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Safety, approvals, EMC Safety 6EP4346-7RB00-0AX0 6EP1961-3BA21 6EP4347-7RB00-0AX0 6EP1962-2BA00 6EP4348-7RB00-0AX0 6EP1964-2BA00 6EP4347-7RC00-0AX0 Electrical isolation Yes, SELV (ES1) acc. to EN 61204-7 (relay con- tact) Protection class Class III Class III Degree of protection IP 20 IP 20 (EN 60529) 6EP4231-7HB00-0AX0 6EP4683-6LB00-0AY0 6EP4231-7HC00-0AX0 6EP1967-2AA00 6EP1961-3BA01...
Applications Redundancy circuit for increased system availability SITOP PSE202U redundancy modules provide additional protection against the failure of 24 V supplies. By decoupling two power supplies through a redundancy module, a power supply that fails does not influence the 24 V supply. The redundancy module continuously monitors the feeding power supplies, and when one device fails, the other one automatically takes over the complete load circuit supply.
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Applications 9.1 Redundancy circuit for increased system availability Redundancy of two power supplies with maximum rated output currents of 10 A Two power supplies with maximum rated output currents of 10 A can be decoupled through two SITOP PSE202U 10 A redundancy modules (6EP1964-2BA00). To do this, output "+" of each power supply is connected to both inputs of a redundancy module ("IN 24 V-1"...
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Applications 9.1 Redundancy circuit for increased system availability Redundancy of two power supplies with maximum rated output currents of 40 A Two power supplies with maximum rated output currents of 40 A can be decoupled through two SITOP PSE202U 40 A redundancy modules (6EP1961-3BA21). To do this, output "+" of each power supply is connected to both inputs of a redundancy module ("IN 24 V-1"...
Applications 9.2 Design of 24 V load feeders with power limiting according to NEC class2 Design of 24 V load feeders with power limiting according to NEC class2 A 24 V power supply with power limiting according to NEC class2 can be implemented using a SITOP PSE202U Class2 redundancy module (6EP1962-2BA00).
5 A. This time can be increased a multiple number of times by connecting buffer modules in parallel; the maximum buffer time is 10 s. You can find additional information at: Manual SITOP expansion modules (https://support.industry.siemens.com/cs/ww/en/view/109768676) Figure 9-6 Buffering brief power failures using the SITOP PSE201U buffer module SITOP expansion modules...
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Applications 9.3 Protection against short-time voltage dips SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Environment The devices are in conformance with RoHS. Only substances in conformance with PWIS are used (paint-wetting impairment substances). Disposal guidelines Packaging and packaging aids can and should always be recycled. The product itself may not be disposed of as domestic refuse. SITOP expansion modules Equipment Manual, 09.2022, A5E36605235-2-76...
Industry Online Support (https://support.industry.siemens.com) Technical support You can access technical support through the following communication channels: • Internet: Web form for support request (http://www.siemens.com/SupportRequest) • Smartphone: Siemens Industry Online Support App (https://new.siemens.com/global/en/products/software/mobile-apps/industry-online- support.html)
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The online catalog and the online ordering system are available through the Industry Mall homepage: Industry Mall (http://www.siemens.com/industrymall/de) Contact persons If you have any questions regarding the use of our products, then contact the Siemens contact person in your regional Siemens sales office. You can find these addresses as follows: • Internet (http://www.automation.siemens.com/partner) •...