Siemens SIMATIC ET 200SP HA Equipment Manual page 8

Distributed i/o devices busadapter for distributed i/o

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Special conditions for safe use of the BusAdapter

Safety functional extra low voltage

Make sure that the supply and input voltages of the IO system are generated safely separately

(Nominal value: 24 V DC +-20%

Power supply according to the following standards:

● IEC/UL 61010-2-201 This safety functional extra-low voltage with the required protection

● NEC Class 2, as in the National Electrical Code (r) (ANSI / NFPA 70)

If the device is connected to a redundant power supply (two separate power supplies), both

must meet these requirements.

Ambient conditions

The device must only be used in areas with a pollution degree of not more than 2 according

to IEC 60664-1 or IEC/UL61010-2-201.

NOTICE

Risk of injury

Read the manual before use to avoid injury.

Use in hazardous area Zone 2

● A permissible installation location is below the maximum permissible installation height of

2 000 m above sea level.

Observe the permissible air pressure of at least 795 hPa (corresponds to a height of approx.

2 000 m).

● A manufacturer declaration in accordance with EN 60079‑0 or a manufacturer declaration

for fulfillment of Zone 2 in accordance with EN 60079‑15 must be available for the enclosure.

WARNING

is referred to as SELV (Safety Extra Low Voltage) / PELV (Protective Extra Low Voltage).

WARNING

Equipment Manual, 09/2019, A5E39261458-AB

BusAdapter for Distributed I/O

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