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The Siemens 3VA5270-5EC36-1AA0 is a 3-pole molded-case circuit breaker from the 3VA5 series, designed for robust system protection. This breaker operates at a rated voltage of 690V AC and features a nominal current rating of 70A at 40°C, with derated values at higher temperatures.
It provides a breaking capacity of 35kA at 480V, 85kA at 240V, and 18kA at 600V, ensuring reliable protection against short circuits. The overcurrent release is set to LI protection function with an overload protection of Ir=70A and a fixed short-circuit protection of Ii=5...10 x In. The breaker is built with a TM230 overcurrent release.
Mechanically, the unit has a typical service life of 20,000 switching cycles and electrical endurance ratings of 8,000 cycles at 380/415V and 4,000 cycles at 690V. It is designed for DIN rail mounting and features front connections with terminals suitable for stranded circular conductors from 6 AWG to 350 kcmil. The dimensions are 185mm in height, 105mm in width, and 83mm in depth, with a net weight of 2.308 kg.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage is 690 V.
It has 3 poles.
The current rating is 70 A.
The breaking capacity at 480 V is 35 kA.
It mounts on DIN rail.
It has a mechanical service life of 20,000 switching cycles.
Yes, it is compliant with UL 489.