Better World

Siemens SIRIUS 3RV Miniature Circuit Breaker, 3-Pole, 20 A, 25 V ac AC, 100 kA Breaking Capacity

Subtotal (1 unit)*

£112.46

(exc. VAT)

£134.95

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 2 unit(s) shipping from 09 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£112.46

*price indicative

Better World

Our Better World range features products that make it easy for you to make a greener product choice you can trust. Click here to find out more.

RS Stock No.:
156-511
Mfr. Part No.:
3RV2421-4BA10-0BA0
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Miniature Circuit Breaker

Number of Poles

3

Current Rating

20 A

Rated AC Voltage

25 V ac

Breaking Capacity

100kA

Range

SIRIUS

Series

3RV

Terminal Type

Screw

Depth

97mm

Height

97mm

Width

45 mm

Better World Product

Yes

Better World Claim

Extended Product Life, Low Carbon Manufacture

COO (Country of Origin):
DE
The Siemens Circuit Breaker is an essential component for transformer protection, designed to operate efficiently within an ambient temperature range from -50 °C to +60 °C. Featuring a robust design for high reliability, it ensures continuous operation under various conditions. With an exceptional switching capacity, it is capable of handling substantial operational demands. The circuit breaker is tailored for easy installation on a standard DIN rail and allows for flexible mounting positions.

Optimized for transformer protection

Compact for versatile mounting

Enhanced thermal overload release

Secure mounting mechanism

High electrical endurance for frequent cycling

Advanced short circuit protection

High environmental resilience

Related links