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Siemens SIRIUS 3RU2 Thermal Overload Relay 3P 1 NO/1 NC, 73A FLC, 73A Contact Rating 3RU2136-4KB0

Name: Siemens SIRIUS 3RU2 Thermal Overload Relay 3P 1 NO/1 NC, 73A FLC, 73A Contact Rating 3RU2136-4KB0
Brand: Siemens
SKU: 383596
Price: 177.56 USD
Availability: InStock

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Category Thermal Overload Relay Brand Siemens Condition New

Specifications

Country of Origin	Germany
Brand	Siemens
Length	55mm
Model	3RU2136-4KB0
Depth	104.2mm
IP Rating	IP65, IP55
Width	76.5mm
Mount Type	Direct
Series	SIRIUS 3RU2
Maximum Operating Temperature	70°C
Minimum Operating Temperature	-40°C
Terminal type	Screw
Standards/Approvals	UKCA, UL, CE, RoHS, IEC, WEEE (2012/19/EU), EAC, REACH, CCC
Contact Voltage	690V ac
Reset Method	Automatic & Manual
Normal State Configuration	1 NO/1 NC
Relay Contact Current	73A
Number of Auxiliary Contacts	2
Pole and Throw Configuration	3P
FLC Motor Rating	73A
Adjustable Current Range	62 → 73 A

Key Features

Designed for motor ratings up to 73A full load current.
Equipped with 3 poles and 1 normally open and 1 normally closed auxiliary contact.
Adjustable current range from 62 to 73 amperes for precision protection.
Automatic and manual reset options available for operational flexibility.
Robust IP65 and IP55 ratings ensure protection in harsh environments.
Constructed for direct mounting with screw terminal type connections.
Operating temperature range from -40°C to 70°C complies with industrial standards.
Compact dimensions of 76.5mm width, 55mm length, and 104.2mm depth.

Product Description

Siemens 3RU2136-4KB0 SIRIUS 3RU2 Thermal Overload Relay is designed for direct mounting in control panels to protect electrical motors and equipment from overload conditions with a full load current rating of 73A.

The 3-pole relay features a contact configuration of 1 normally open (NO) and 1 normally closed (NC) auxiliary contact to deliver precise operational switching control. Its adjustable current range from 62 to 73 amperes allows accurate calibration for varying motor loads.

Rated for 690V AC contact voltage and resistant to impulse voltages up to 6 kV, this relay ensures robust insulation and safe operation under industrial electrical stresses. The relay comes with both automatic and manual reset methods to suit different protection system requirements.

Constructed with screw terminal type connections for secure wiring, it supports IP65 and IP55 ingress protection ratings, allowing reliable use in challenging industrial environments including manufacturing, automation, HVAC systems, and water treatment plants.

The compact form factor measuring 76.5mm width, 55mm length, and 104.2mm depth enables easy integration into existing control gear sets. Operating temperature range from -40°C to 70°C further enhances its adaptability in diverse climatic conditions.

This Siemens Thermal Overload Relay meets multiple international standards including UKCA, UL, CE, RoHS, IEC, WEEE (2012/19/EU), EAC, REACH, and CCC certifications, guaranteeing safety and compliance in industrial usage.

Designed for motor protection up to 73A full load current. 3 poles with 1 NO and 1 NC auxiliary contact. Adjustable current range from 62 to 73 A. Automatic and manual reset capabilities. IP65 and IP55 rated for harsh environments.

Screw terminal type for secure mounting. Operating temperature from -40°C to 70°C. Dimensions: 76.5mm width x 55mm length x 104.2mm depth. Impulse voltage resistance 6 kV and insulation voltage 690V AC. Internationally certified for global standards compliance.

Ideal for use in electrical automation, industrial motor control systems, and protection gear, this relay ensures reliable operation and safety. Explore the full range of Siemens relays and contactors at EnvMart for comprehensive automation solutions.

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Frequently Asked Questions

The Siemens SIRIUS 3RU2 Thermal Overload Relay has a maximum load current rating of 73A for full load conditions.

This model features an adjustable current range from 62A to 73A, allowing for precise calibration based on varying motor loads.

The dimensions of this thermal overload relay are 76.5mm in width, 55mm in length, and 104.2mm in depth.

The relay is configured with 1 normally open (NO) contact and 1 normally closed (NC) auxiliary contact, along with 3 poles.

This thermal overload relay is rated IP65 and IP55, ensuring protection against dust and water in harsh environments.

The operating temperature range for the Siemens SIRIUS 3RU2 is from -40°C to 70°C, making it suitable for diverse climatic conditions.

The relay is rated for a contact voltage of 690V AC, which ensures safe operation under industrial electrical stresses.

This model offers both automatic and manual reset options, providing flexibility in operational settings.

It is designed for direct mounting and features screw terminal type connections for secure wiring.

The Siemens SIRIUS 3RU2 Thermal Overload Relay complies with multiple international standards including UKCA, UL, CE, RoHS, IEC, WEEE, EAC, REACH, and CCC.

This relay is suitable for use in electrical automation, industrial motor control systems, and protection gear, particularly in manufacturing, HVAC systems, and water treatment plants.

The relay is resistant to impulse voltages up to 6 kV, ensuring robust insulation and safe operation under electrical stress.