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The Siemens 3VA5112-5EC36-1AA0 is a 3-pole molded-case circuit breaker from the 3VA51 series, designed for system protection applications. It features a rated operational current of 125A at 40°C, with a derated current of 109A at 70°C. The breaker offers a significant breaking capacity of 35kA at 480V and 18kA at 600Y/347V, meeting UL489 standards.
This circuit breaker utilizes a TM230 trip unit with LI protection function, providing both overload and short-circuit protection. It is rated for a maximum operating voltage of 690V AC. The device is suitable for HACR type applications and meets naval specifications, operating reliably at temperatures up to 50°C. It is designed for DIN rail mounting and features cable connections on both sides.
With a mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles at 480V, the 3VA5112-5EC36-1AA0 is built for durability. Its dimensions are 3 x 5.5 x 3.7 inches. The breaker has a maximum power loss of 30.1W and an active power loss of 10.03W per pole under rated conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operating voltage for this circuit breaker at AC is 690 V.
The operational current is 125A at 40°C, derating to 109A at 70°C.
The breaking capacity is 35kA at 480V and 18kA at 600Y/347V.
It features a TM230 trip unit with LI protection function for overload and short-circuit protection.
Yes, this circuit breaker is designed for Heating, Air Conditioning, and Refrigeration (HACR Type) applications according to UL 489.
This naval-rated circuit breaker is rated for operation at 50°C.