Siemens, 3RB3 Overload Relay 1 NO/1 NC, 12.5A, 50 A F.L.C, 50A Contact Rating 3
- RS Stock No.:
- 211-3664
- Mfr. Part No.:
- 3RB3133-4UW1
- Brand:
- Siemens
Subtotal (1 unit)*
Kr. 3 870,72
(exc. VAT)
Kr. 4 838,40
(inc. VAT)
FREE delivery for online orders over 750,00 kr
Stocked by manufacturer
- Ready to ship from 18 May 2026
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Units | Per unit |
|---|---|
| 1 + | Kr. 3 870,72 |
*price indicative
- RS Stock No.:
- 211-3664
- Mfr. Part No.:
- 3RB3133-4UW1
- 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 | 12.5, 50A | |
| Product Type | Overload Relay | |
| Relay Contact Current | 50A | |
| Series | 3RB3 | |
| Mount Type | Stand Alone | |
| Pole and Throw Configuration | 3 | |
| Terminal Type | Screw | |
| Normal State Configuration | 1 NO/1 NC | |
| IP Rating | IP20 | |
| Reset Method | Automatic & Manual | |
| Width | 55mm | |
| Adjustable Current Range | 12.5 to 50 A | |
| Minimum Operating Temperature | -25°C | |
| Number of Auxiliary Contacts | 2 | |
| Maximum Operating Temperature | 60°C | |
| Length | 81mm | |
| Contact Voltage | 690V | |
| Depth | 109mm | |
| Standards/Approvals | IEC 61000-4-4, IEC 61000-4-6, CCC approved, CE Approved, CSA Approved, EAC Approved, IEC 81346-2, UL Approved, IEC 61000-4-3, IEC 60068-2-27, IEC 60529, IEC 61000-4-2, IEC 61000-4-5 | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
FLC Motor Rating 12.5, 50A | ||
Product Type Overload Relay | ||
Relay Contact Current 50A | ||
Series 3RB3 | ||
Mount Type Stand Alone | ||
Pole and Throw Configuration 3 | ||
Terminal Type Screw | ||
Normal State Configuration 1 NO/1 NC | ||
IP Rating IP20 | ||
Reset Method Automatic & Manual | ||
Width 55mm | ||
Adjustable Current Range 12.5 to 50 A | ||
Minimum Operating Temperature -25°C | ||
Number of Auxiliary Contacts 2 | ||
Maximum Operating Temperature 60°C | ||
Length 81mm | ||
Contact Voltage 690V | ||
Depth 109mm | ||
Standards/Approvals IEC 61000-4-4, IEC 61000-4-6, CCC approved, CE Approved, CSA Approved, EAC Approved, IEC 81346-2, UL Approved, IEC 61000-4-3, IEC 60068-2-27, IEC 60529, IEC 61000-4-2, IEC 61000-4-5 | ||
- COO (Country of Origin):
- CZ
The Siemens SIRIUS 3RB series is a solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure which has a current rating up to 50 A. It has manual or automatic reset switch functionality. It has a size S2. It can be mounted with stand alone installation. The type of electrical connection for main circuit is straight through transformer and for auxiliary circuit is through screw type terminal. Due to the wide current setting ranges and various tripping characteristics, complete series of motors are covered with just a few types. It has low heat loss which makes it energy-efficient and help to reduce the temperature rise in the control cabinet.
Ambient operating temperature is -25 to +60 °C
Operating frequency is 50 to 60 Hz
Trip class is CLASS 5E, 10E, 20E and 30E adjustable