Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 3 A Contact Rating, 4 kW, 3P, SIRIUS
- RS Stock No.:
- 751-5988
- Mfr. Part No.:
- 3RU2126-1JC0
- Brand:
- Siemens
Subtotal (1 unit)*
£62.77
(exc. VAT)
£75.32
(inc. VAT)
FREE delivery for orders over £50.00
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- Shipping from 21 November 2025
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Units | Per unit |
|---|---|
| 1 + | £62.77 |
*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 | |
| Contact Current Rating | 3 A | |
| Range | SIRIUS | |
| Pole Configuration | 3P | |
| Series | SIRIUS 3RU2 | |
| Power Rating | 4 kW | |
| Normal State Configuration | 1NO + 1NC | |
| Reset Method | Automatic, Manual | |
| Width | 87mm | |
| Number Of Auxiliary Contacts | 2 | |
| Length | 45mm | |
| Depth | 73mm | |
| Minimum Operating Temperature | -20°C | |
| Maximum Operating Temperature | +70°C | |
| Operating Temperature Range | -40 → +70 °C | |
| Contact Voltage Rating | 220 V dc, 400 V ac | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Contact Current Rating 3 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series SIRIUS 3RU2 | ||
Power Rating 4 kW | ||
Normal State Configuration 1NO + 1NC | ||
Reset Method Automatic, Manual | ||
Width 87mm | ||
Number Of Auxiliary Contacts 2 | ||
Length 45mm | ||
Depth 73mm | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature +70°C | ||
Operating Temperature Range -40 → +70 °C | ||
Contact Voltage Rating 220 V dc, 400 V ac | ||
- 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
Dimensions; H92mm x W45mm x D110mm
For use with contactors rated 3-5.5kW
Manual; Auto Reset
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.
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
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