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This Siemens 3VA5270-6EC41-0AA0 is a molded-case circuit breaker from the SENTRON series, designed for system protection. It features a 4-pole configuration and a rated operational current of 70A, with the current rating maintained up to 50°C.
The circuit breaker operates at a maximum rated operational voltage of 690V AC and 1000V DC, with an insulation voltage of 800V. It offers a significant breaking capacity, rated at 65kA at 480V according to UL 489 standards, and 70kA at 415V according to IEC 60947.
Designed for reliability, it has a typical mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles at 380/415V AC. The breaker is mounted on a DIN rail and features a lever actuator.
Key electrical protection functions include overload protection with a fixed setting for Ir=70A and short-circuit protection with an adjustable range of 5 to 10 times the rated current (Ii=350A to 700A). It is designed for line protection and is HACR Type rated.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum rated operational voltage for this circuit breaker is 690 V AC at 50/60Hz and 1000 V DC.
The permanent rated current (Iu) is 70A. The operational current is 70A at temperatures up to 50°C.
According to IEC 60947, the breaking capacity (Icu) is 70 kA at 415 V and 10 kA at 690 V. According to UL 489, the breaking capacity is 65 kA at 480 V.
The adjustable response value current for short-circuit protection (Ii) ranges from a minimum of 350 A to a maximum of 700 A.
The typical mechanical service life is 20,000 switching cycles.