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Siemens S5-135U/155U User Manual

Page 122

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4-56

System Manual

C79000-G8576-C199-06

6ES5 955-3NF42

6ES5 955-3NC42

Backup battery

Type
Capacity
No-load voltage
Voltage under load
Storage life
Service life in operation
(see Section 4.3.4 for backup times)

Lithium thionyl chloride
5 Ah
3.6 V
3.4 V
approx. 10 years
3 years max.

Rechargeable battery

Type
Capacity
Rated voltage
Service life in operation
(see Section 4.3.4 for backup times)
Protection against exhaustive discharge

Nickel cadmium
1.2 Ah
3.6 V
6 years at 40

°

C (104

°

F)

yes

Service life of fans

approx. 50.000 h at 40

°

C

approx. 50.000 h at 40

°

C

Weight

approx. 5.8 kg

approx. 5.8 kg

Noise emission

58 dBA

58 dBA

Environmental data

See technical specifications of the S5-135U/155U CC

Central Controllers and Expansion Units Power Supply Units