
Siemens
- Available:
- 0 pcs.On RequestUpdated at: 11-09-2026
- Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
- Warranty:
- 12 months
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The 3VA51 circuit breaker is a low voltage molded case circuit breaker equipped with a thermal-magnetic trip unit. It has a rated current of 45A and operates at a maximum voltage of 690V.
Notably, this model has a medium breaking capacity classified as Class M, achieving 35kA at 480V and 18kA at 600Y/347. It utilizes the TM210 trip unit with fixed overload protection set to 45A and a short-circuit protection of 10 times the rated current.
Designed for naval applications, it operates effectively at a temperature of up to 50°C without lugs. The dimensions of the device measure 3 inches in width, 5.5 inches in height, and 3.7 inches in depth. Additionally, the device complies with UL 489 standards.
For installation, this circuit breaker is suitable for DIN rail mounting and features a built-in device construction. It offers an overload release current setting of 32A and does not include an integrated earth fault or under voltage release.

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Datasheet for Siemens 3VA5145-5ED31-1AA0, including specifications and features.
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