Siemens 3RB Overload Relay 2NC + 2NO, 0.3 → 630 A F.L.C, 630 A Contact Rating, 3P, SIRIUS

View all Contactor Overload Relays

Subtotal (1 unit)*

£312.61

(exc. VAT)

£375.13

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 10 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£312.61

*price indicative

Shop Siemens SIRIUS
Discover our Siemens SIRIUS products. Command, Control, Monitor and start your motors the Hybrid way.
Find out more
RS Stock No.:
213-0544
Mfr. Part No.:
3RB2383-4AA1
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

FLC Motor Rating

0.3 → 630 A

Contact Current Rating

630 A

Range

SIRIUS

Pole Configuration

3P

Series

3RB

Normal State Configuration

2NC + 2NO

COO (Country of Origin):
DE
The Siemens SIRIUS 3RB series is manual-automatic reset solid-state overload relay used for higher-level applications for the current and temperature-based protection of loads with normal and heavy starting against impermissibly high heat generation. The type of electrical connection for main circuit and auxiliary circuit is through screw terminal.
Due to wide current setting ranges and various tripping characteristics, entire series of motors are covered with just a few types. It has low heat loss which makes it energy-efficient and help to minimize temperature rises in the control cabinet.

Ambient operating temperature is -25 to +60 °C
Operating frequency is 50 to 60 Hz
Trip class is CLASS 5, 10, 20 and 30 adjustable