Siemens, 3RB Overload Relay 1 NO/1 NC, 250A, 55 A F.L.C, 4A Contact Rating 3
- RS Stock No.:
- 751-8870
- Mfr. Part No.:
- 3RB2163-4GC2
- Brand:
- Siemens
Subtotal (1 unit)*
£321.51
(exc. VAT)
£385.81
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 07 July 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £321.51 |
*price indicative
- RS Stock No.:
- 751-8870
- Mfr. Part No.:
- 3RB2163-4GC2
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| FLC Motor Rating | 250, 55A | |
| Product Type | Overload Relay | |
| Relay Contact Current | 4A | |
| Series | 3RB | |
| Mount Type | Direct | |
| Pole and Throw Configuration | 3 | |
| Normal State Configuration | 1 NO/1 NC | |
| Terminal Type | Screw | |
| IP Rating | IP00 | |
| Reset Method | Automatic & Manual | |
| Number of Auxiliary Contacts | 2 | |
| Adjustable Current Range | 55 to 250 A | |
| Minimum Operating Temperature | -25°C | |
| Width | 85mm | |
| Maximum Operating Temperature | 60°C | |
| Contact Voltage | 220, 230V dc | |
| Length | 145mm | |
| Standards/Approvals | REACH, RoHS, CCC, EAC, UL, CE, UKCA, IEC, WEEE (2012/19/EU) | |
| Depth | 156mm | |
| Supply Voltage | 400V | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
FLC Motor Rating 250, 55A | ||
Product Type Overload Relay | ||
Relay Contact Current 4A | ||
Series 3RB | ||
Mount Type Direct | ||
Pole and Throw Configuration 3 | ||
Normal State Configuration 1 NO/1 NC | ||
Terminal Type Screw | ||
IP Rating IP00 | ||
Reset Method Automatic & Manual | ||
Number of Auxiliary Contacts 2 | ||
Adjustable Current Range 55 to 250 A | ||
Minimum Operating Temperature -25°C | ||
Width 85mm | ||
Maximum Operating Temperature 60°C | ||
Contact Voltage 220, 230V dc | ||
Length 145mm | ||
Standards/Approvals REACH, RoHS, CCC, EAC, UL, CE, UKCA, IEC, WEEE (2012/19/EU) | ||
Depth 156mm | ||
Supply Voltage 400V | ||
- COO (Country of Origin):
- DE
3RB21 Range
Internal power supply
Auxiliary contacts 1 NO+1NC
Manual/Automatic Reset
Switching position indicator
Internal ground fault
Eletrical remote reset
Test function
Phase failure/unbalance sensitivity
Selectable trip class 5,10,20 and 30 operation
Electronic Overload Relays
The 3RB2 range of Solid State Electronic overloads can be connected directly to Siemens SIRIUS contactors to provide accurate motor overload protection with enhanced single phase sensitivity,Application: Protection of 3 phase AC motors in sinusoidal 50/60Hz network. These relays are not suitable for the protection of single phase or DC loads,Select according to motor full load current and contactor frame size e,g. S00