
Siemens
- Available:
- 0 pcs.On RequestUpdated at: 02-09-2026
- Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
- Warranty:
- 12 months
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The 3VA21 low voltage molded case circuit breaker is designed in accordance with IEC standards, featuring a medium breaking capacity (Class M). It is rated for a maximum current of 40A and provides a breaking capacity of 55kA at 415V. The device includes an ETU550 electronic trip unit with an LCD display, facilitating precise overload protection settings between 16A to 40A.
This circuit breaker is equipped with a robust 4-pole configuration, ensuring comprehensive line protection. The short-circuit protection is adjustable, with settings ranging from 0.6 to 10 times the nominal current. Additionally, it offers a physical configuration suitable for both standard and DIN rail mounting.
Notably, the connection utilizes a box terminal with steel wrap-around lugs for secure attachment. The overall dimensions of the unit are 5.5 x 7.1 x 4.2 inches, and it maintains an IP40 degree of protection, making it suitable for a variety of installation environments.

Siemens
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Datasheet for Siemens 3VA2140-5JP46-0AA0, including specifications and features.
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