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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 57A F.L.C 57A Contact Rating 3RU2136-4QB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 55mm |
| Model | 3RU2136-4QB0 |
| Depth | 104.2mm |
| IP Rating | IP55, IP65 |
| Width | 76.5mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Screw |
| Standards/Approvals | CCC, IEC, RoHS, UKCA, REACH, CE, UL, EAC, WEEE (2012/19/EU) |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 57A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3P |
| FLC Motor Rating | 57A |
| Adjustable Current Range | 47 → 57 A |
Key Features
- Designed for current sensitive protection of loads with normal starting.
- Features 1 normally open and 1 normally closed contact configuration.
- Adjustable current range from 47 to 57 amperes for versatile use.
- Supports automatic and manual reset methods.
- IP55 and IP65 ratings for dust and water resistance.
- Compatible with Sirius Size S0 and S00 contactors.
- Switch position indicator and test function included.
- Screw terminal connections for secure wiring.
Product Description
Siemens 3RU2136-4QB0 SIRIUS 3RU2 Thermal Overload Relay provides reliable motor protection with a full load current rating of 57A and contact rating of 57A suitable for 3-pole configurations. This relay is designed to protect motors against overloads by monitoring the current and disconnecting in case of anomalies, ensuring safety and longevity of industrial equipment.
The thermal overload relay integrates both automatic and manual reset functions, allowing operators to choose based on application needs. Its screw terminal type facilitates secure electrical connections, while the robust construction withstands operation in temperatures ranging from -40°C to 70°C. The device also comes with IP55 and IP65 ratings, providing protection in environments exposed to dust and water.
Additional features include a switch position indicator and a test function that are critical for preventive maintenance and operational safety. With an adjustable current range from 47 to 57 A, this relay offers versatile protection settings. Compliance with CCC, IEC, RoHS, UKCA, REACH, CE, UL, EAC, and WEEE standards confirms its suitability for various industrial and commercial applications globally.
This relay is compatible with Siemens Sirius Size S0 and S00 contactors and is ideal for use in industrial motor control systems, machinery automation, manufacturing facilities, and electrical installations requiring reliable overload protection. Installation can be performed via surface or DIN-rail mounting, offering flexibility in integration.
Siemens thermal Overload Relays are engineered for durability and performance in harsh industrial conditions, making the 3RU2136-4QB0 an excellent choice for safeguarding electrical motors and related equipment.
Designed for current sensitive protection of loads with normal starting. Features 1 normally open and 1 normally closed contact configuration. Adjustable current range from 47 to 57 amperes for versatile use. Supports automatic and manual reset methods.
IP55 and IP65 ratings for dust and water resistance. Compatible with Sirius Size S0 and S00 contactors. Switch position indicator and test function included. Screw terminal connections for secure wiring. Impulse voltage resistance of 6 kV.
Operating temperature range from -40°C to 70°C. Conforms to IEC, RoHS, CE, UL, and other standards. Explore more Siemens electrical and automation products at EnvMart for industrial, manufacturing, and commercial applications.
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Frequently Asked Questions
The maximum contact rating of this model is 57A, suitable for 3-pole configurations.
The adjustable current range for the Siemens SIRIUS 3RU2136-4QB0 is from 47 to 57 amperes.
This relay has IP55 and IP65 ratings, providing protection against dust and water.
The operating temperature range for this unit is from -40°C to 70°C.
It supports both automatic and manual reset methods, allowing flexibility based on application needs.
This model features a contact configuration of 1 normally open (NO) and 1 normally closed (NC).
The relay uses screw terminal connections for secure wiring.
Yes, it is compatible with Siemens Sirius Size S0 and S00 contactors.
This relay complies with several standards including CCC, IEC, RoHS, UKCA, REACH, CE, UL, EAC, and WEEE.
The dimensions of this relay are 55mm in length, 76.5mm in width, and 104.2mm in depth.
It includes a switch position indicator and a test function for preventive maintenance and operational safety.
The impulse voltage resistance of this relay is 6 kV.
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