Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 1.8 → 2.5 A F.L.C, 2.5 A Contact Rating, 0.75 kW, 3P,

RS Stock No.:: 706-1544
Distrelec Article No.:: 301-39-549
Mfr. Part No.:: 3RU2116-1CB0
Brand:: Siemens

Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 1.8 → 2.5 A F.L.C, 2.5 A Contact Rating, 0.75 kW, 3P,

Subtotal (1 unit)*

74,24 €

(exc. VAT)

89,83 €

(inc. VAT)

Frais de livraison offerts pour toute commande de plus de 75,00 €

En stock

Plus 1 unité(s) expédiée(s) à partir du 15 décembre 2025
Plus 15 unité(s) expédiée(s) à partir du 15 décembre 2025

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Units	Per unit
1 +	74,24 €

*price indicative

RS Stock No.:: 706-1544
Distrelec Article No.:: 301-39-549
Mfr. Part No.:: 3RU2116-1CB0
Brand:: Siemens

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Marque	Siemens
	FLC Motor Rating	1.8 → 2.5 A
	Contact Current Rating	2.5 A
	Range	SIRIUS
	Pole Configuration	3P
	Series	SIRIUS 3RU2
	Mounting Style	Direct Contactor
	Power Rating	0.75 kW
	Normal State Configuration	1NO + 1NC
	Terminal Type	Screw
	Reset Method	Automatic, Manual
	Number Of Auxiliary Contacts	2
	Width	45mm
	Depth	70mm
	Length	87mm
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	+70°C
	Operating Temperature Range	-40 → +70 °C
	Contact Voltage Rating	690 V ac

	Select all
	Marque Siemens
	FLC Motor Rating 1.8 → 2.5 A
	Contact Current Rating 2.5 A
	Range SIRIUS
	Pole Configuration 3P
	Series SIRIUS 3RU2
	Mounting Style Direct Contactor
	Power Rating 0.75 kW
	Normal State Configuration 1NO + 1NC
	Terminal Type Screw
	Reset Method Automatic, Manual
	Number Of Auxiliary Contacts 2
	Width 45mm
	Depth 70mm
	Length 87mm
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature +70°C
	Operating Temperature Range -40 → +70 °C
	Contact Voltage Rating 690 V ac

COO (Country of Origin):: DE

Siemens SIRIUS 3RU2 Series Thermal Overload Relay, 2.5A Contact Current Rating, 0.75kW Power Rating - 3RU2116-1CB0

This thermal overload relay is essential for protecting motors from overheating and damage caused by excessive current. It ensures operational safety and reliability in automation and electrical applications. Designed for efficient performance, it accommodates a broad range of current ratings and includes features that simplify monitoring and maintenance of electrical systems.

Features & Benefits

• Designed with a 3P pole configuration for versatile Applications
• Supports both automatic and manual reset methods
• Suitable for motors with a full load current of 1.8 to 2.5A
• Equipped with screw terminals for secure electrical connections
• Features two auxiliary contacts for enhanced functionality

Applications

• Compatible with direct contactors for seamless integration
• Utilised in industrial machinery for effective motor protection
• Applicable in HVAC systems to prevent motor overheating
• Used in conveyors to safeguard against electrical faults

How does the reset work after an overload condition?

The relay can be reset automatically or manually, offering flexibility in operation.

Can it handle different types of motors?

Yes, it is suitable for various motor types within the 1.8 to 2.5A rating.

What are the installation requirements for this relay?

It is designed for direct mounting, requiring minimal space and straightforward wiring.

Is there a way to check the status of the relay?

The two auxiliary contacts can monitor the operational status.

What is the significance of the temperature range specified?

The specified temperature range ensures reliable performance under diverse climatic conditions, enhancing safety and longevity.