Better World

Siemens 4.5 → 6.3 A SIRIUS 3RV Motor Protection Circuit Breaker

Subtotal (1 unit)*

£66.54

(exc. VAT)

£79.85

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 4 unit(s) ready to ship
  • Plus 5 unit(s) ready to ship from another location
  • Plus 6 unit(s) shipping from 31 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£66.54

*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.:
124-3103
Mfr. Part No.:
3RV2021-1GA10
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Current Rating

4.5 → 6.3 A

Range

SIRIUS 3RV

Motor Protection Component

Circuit Breaker

Series

3RV2

Overall Length

45mm

Overall Width

97mm

Overall Depth

97mm

Minimum Operating Temperature

-20°C

Voltage Rating

690 V

Maximum Operating Temperature

+60°C

Better World Product

Yes

Breaking Capacity

100 kA

Number of Poles

3

Better World Claim

Extended product life, Low carbon manufacture

Terminal Type

Screw

Size

S0

COO (Country of Origin):
DE

Siemens 3RV2 Series Motor Protection Circuit Breaker, 4.5 to 6.3A Current Rating, 690V Voltage - 3RV2021-1GA10


This motor protection circuit breaker is an essential device for safeguarding electric motors within automation and industrial settings. It is designed to manage current ratings ranging from 4.5A to 6.3A and operates at a maximum voltage of 690V. This compact device measures 45mm in length and 97mm in width and depth, making it suitable for space-constrained installations.

Features & Benefits


• High breaking capacity of 100kA for robust protection
• Three-pole design ensures effective current disconnection
• Operates efficiently within -20°C to +60°C temperature range
• Screw terminal connections for secure and easy installation
• Rated insulation voltage of 690V enhances safety measures
• Electrical endurance rated at 100,000 operating cycles for reliability

Applications


• Used for protecting three-phase AC motors in industrial environments
• Ideal for various requiring circuit protection devices
• Effectively manages electrical current for automation systems
• Suitable for installations on 35mm DIN rails

What type of installation methods are supported with this device?


It supports both screw and snap-on mounting methods onto 35mm DIN rails, simplifying installation and enhancing versatility across applications.

How does the temperature range affect the operational reliability of this circuit breaker?


With an operational temperature range of -20°C to +60°C, it maintains high reliability across diverse conditions, preventing damage to motors due to overheating or freezing.

What are the implications of the adjustable current response value?


The adjustable current response value allows for tailored overload protection, ensuring optimal safety for motors operating at varied loads, thus preventing potential current-related failures.

Related links