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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RU1136-4GB0 |
| Alternative Part Number | 3RU11364GB0 |
| Manufacturer | Siemens |
| Product Type | Overload Relay |
| Contact Configuration | 1NC/3NO |
| Number of Poles | 4P |
| Power Loss | 9 W typical |
| Insulation Voltage | Rated at 690 V |
| Surge Voltage Resistance | Rated value 6 kV |
| Protection Class | IP20 on the front |
| Shock Resistance | 8g / 10 ms |
| Type of Protection | DMT 98 ATEX G 001 |
| Ambient Operating Conditions | Installation altitude up to 2000 m above sea level |
| Temperature Range | -20 to +70 °C during operation |
| Relative Humidity | Up to 100% during operating phase |
| Mounting Type | Direct mounting |
| Dimensions (H x W x D) | 105 mm x 55 mm x 118 mm |
| Required Spacing | 0 mm forwards, backwards, upwards, downwards; 6 mm at the side for grounded and live parts |
| Electrical Connection | Screw-type terminals for main and auxiliary/control current circuits |
| Conductor Cross-Section | Main contacts: 2x (0.75...16 mm²) solid, 2x (0.75...25 mm²) stranded, 0.75...35 mm² finely stranded with core end processing; Auxiliary contacts: 2x (0.5...1.5 mm²) solid, 2x (0.75...2.5 mm²) finely stranded with core end processing |
| Approvals | General Product Approval for use in hazardous locations |
The Siemens 3RU1136-4GB0 is a high-quality overload relay designed to provide efficient motor protection. This component is part of the SIRIUS product family and is engineered to safeguard motors by monitoring and responding to current overload conditions. With a size S2 footprint, it is compatible with contactor mounting, ensuring a seamless integration into your existing system.
The 3RU1136-4GB0 features a thermal overload relay function with an adjustable pick-up value current range of 36 to 45 A, making it versatile for various applications. It operates with a three-pole main current circuit and includes both normally closed (1NC) and normally open (3NO) contacts for auxiliary circuit control, enhancing its functionality in motor control schemes.
Constructed with a focus on durability and reliability, the relay can withstand a wide range of ambient temperatures from -20°C to +70°C during operation, ensuring consistent performance in diverse working environments. The unit is also designed to be finger-safe, providing additional protection against electrical shock.
This overload relay is a Class 10 device, which means it offers a quick response to current overloads, typically within 10 seconds, to prevent motor damage. The compact dimensions, with a width of 55 mm and a depth of 118 mm, allow for efficient use of space within control cabinets.
The 3RU1136-4GB0 is a robust and reliable choice for motor protection in industrial applications, offering both performance and peace of mind in safeguarding your valuable equipment.
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Frequently Asked Questions
What is the function of this overload relay?
The Siemens Contactor Overload Relay is designed to protect motors from overloads by interrupting the electrical supply when an overload is detected, preventing potential damage to the motor.
Can this overload relay be mounted directly to a contactor?
Yes, this overload relay is designed for direct mounting to a compatible Siemens contactor, allowing for a compact and efficient setup.
What is the trip class of this overload relay?
The overload relay has a trip class of CLASS 10, which means it will trip or activate within 10 seconds under conditions of an overload of 600% of its rated current.
What type of terminals does this overload relay have?
This overload relay is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit.
What is the range of the adjustable pick-up value current for this relay?
The adjustable pick-up value current for the overload relay ranges from 36 to 45 A, allowing for customisation based on the motor's requirements.
What is the insulation voltage rating of this overload relay?
The insulation voltage rating for this overload relay is 690 V with a degree of pollution 3.
What are the dimensions of this overload relay?
The dimensions of the overload relay are a width of 55 mm, a depth of 118 mm, and a height of 105 mm.
What is the ambient operating temperature range for this overload relay?
The ambient operating temperature range for this overload relay is from -20°C to +70°C.
What type of protection does this overload relay offer?
This overload relay offers finger-safe protection and is rated with a protection class of IP20 on the front.
What is the surge voltage resistance of this overload relay?
The surge voltage resistance of this overload relay is rated at 6 kV.
