Siemens, SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, 3A Contact Rating, 4 kW 3
- RS Stock No.:
- 751-5988
- Mfr. Part No.:
- 3RU2126-1JC0
- Brand:
- Siemens
Subtotal (1 unit)*
£47.03
(exc. VAT)
£56.44
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 13 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £47.03 |
*price indicative
- RS Stock No.:
- 751-5988
- Mfr. Part No.:
- 3RU2126-1JC0
- 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 | |
| Product Type | Thermal Overload Relay | |
| Relay Contact Current | 3A | |
| Mount Type | Direct | |
| Series | SIRIUS 3RU2 | |
| Power Rating | 4kW | |
| Pole and Throw Configuration | 3 | |
| Terminal Type | Spring Loaded | |
| Normal State Configuration | 1 NO/1 NC | |
| Reset Method | Automatic & Manual | |
| IP Rating | IP20 | |
| Minimum Operating Temperature | -20°C | |
| Number of Auxiliary Contacts | 2 | |
| Adjustable Current Range | 7 to 10 A | |
| Width | 87mm | |
| Length | 45mm | |
| Contact Voltage | 220, 400V dc | |
| Maximum Operating Temperature | 70°C | |
| Standards/Approvals | UL Approved, IEC 61508, IEC 65029, IEC 81346-2, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved | |
| Depth | 73mm | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Thermal Overload Relay | ||
Relay Contact Current 3A | ||
Mount Type Direct | ||
Series SIRIUS 3RU2 | ||
Power Rating 4kW | ||
Pole and Throw Configuration 3 | ||
Terminal Type Spring Loaded | ||
Normal State Configuration 1 NO/1 NC | ||
Reset Method Automatic & Manual | ||
IP Rating IP20 | ||
Minimum Operating Temperature -20°C | ||
Number of Auxiliary Contacts 2 | ||
Adjustable Current Range 7 to 10 A | ||
Width 87mm | ||
Length 45mm | ||
Contact Voltage 220, 400V dc | ||
Maximum Operating Temperature 70°C | ||
Standards/Approvals UL Approved, IEC 61508, IEC 65029, IEC 81346-2, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved | ||
Depth 73mm | ||
- COO (Country of Origin):
- DE
Overload Relays - 3RU Range
Size 00
Dimensions; H92mm x W45mm x D110mm
For use with contactors rated 3-5.5kW
Manual; Auto Reset
Siemens SIRIUS Cage Clamp Technology
As an alternative to screw connections a large number of Siemens low voltage components are also available with cage clamp connections.,Solid, stranded and finely stranded conductors, with or without end sleeves, can be connected, where two conductors can be clamped independent of one another at each terminal.,Inserting a flat bladed screwdriver opens the terminal; the conductor is then introduced and securely clamped following the removal of the screwdriver. The chromium-nickel spring steel of the cage clamp terminal guarantees corrosion resistant contact of the conductors.
Advantages
Time saving: the connection can be made quickly without having to press on end sleeves
Reliability: the terminal connection is resistant to shock and vibration
Vertical Mounting
Reduced maintenance: the cage clamp system means that the checking of screw connections following transportation is unnecessary
Note
Most of the Sirius 3R components are available with cage clamp connections. For the size S00 products, with rating up to 5.5kW, this includes both power and control circuit connections. For higher rated products cage clamp is available for the control wiring connections such as operating coils and auxiliary contacts.