Siemens SIMATIC S7 System Manual page 283
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Also See for SIMATIC S7:
- System manual (866 pages) ,
- Functional safety manual (212 pages) ,
- User manual (134 pages)
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Protection Class
● Protection Class II according to EN 61131-2 (Protective conductor not required)
Degree of protection
● IP20 Mechanical Protection, EN 60529
● Protects against finger contact with high voltage as tested by standard probe. External
Rated voltages
Rated Voltage
24 VDC
120/230 VAC
NOTICE
When a mechanical contact turns on output power to the S7-1200 CPU, or any digital
signal module, it sends a "1" signal to the digital outputs for approximately 50
microseconds. You must plan for this, especially if you are using devices which respond to
short duration pulses.
Relay electrical service life
The typical performance data supplied by relay vendors is shown below. Actual
performance may vary depending upon your specific application. An external protection
circuit that is adapted to the load will enhance the service life of the contacts.
S7-1200 Programmable controller
System Manual, 11/2009, A5E02486680-02
protection required for dust, dirt, water and foreign objects of < 12.5mm in diameter.
A.1 General Technical Specifications
Tolerance
20.4 VDC to 28.8 VDC
85 VAC to 264 VAC, 47 to 63 Hz
①
Service life (x 10
②
250 VAC resistive load,
30 VDC resistive load
③
250 VAC inductive load (p.f=0.4)
30 VDC inductive load (L/R=7ms)
④
Rated Operating Current (A)
Technical specifications
operations)
3
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