Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 3.5 → 5 A F.L.C, 5 A Contact Rating, 1.5 kW, 3P, SIRIUS

RS Stock No.:: 706-1566
Mfr. Part No.:: 3RU2116-1FB0
Brand:: Siemens

Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 3.5 → 5 A F.L.C, 5 A Contact Rating, 1.5 kW, 3P, SIRIUS

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 5 unité(s) expédiée(s) à partir du 15 décembre 2025
Plus 35 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.:: 706-1566
Mfr. Part No.:: 3RU2116-1FB0
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	3.5 → 5 A
	Contact Current Rating	5 A
	Range	SIRIUS
	Pole Configuration	3P
	Series	SIRIUS 3RU2
	Mounting Style	Direct Contactor
	Power Rating	1.5 kW
	Normal State Configuration	1NO + 1NC
	Terminal Type	Screw
	Reset Method	Automatic, Manual
	Number Of Auxiliary Contacts	2
	Width	45mm
	Depth	73mm
	Length	87mm
	Maximum Operating Temperature	+70°C
	Minimum Operating Temperature	-40°C
	Operating Temperature Range	-40 → +70 °C
	Contact Voltage Rating	690 V ac

	Select all
	Marque Siemens
	FLC Motor Rating 3.5 → 5 A
	Contact Current Rating 5 A
	Range SIRIUS
	Pole Configuration 3P
	Series SIRIUS 3RU2
	Mounting Style Direct Contactor
	Power Rating 1.5 kW
	Normal State Configuration 1NO + 1NC
	Terminal Type Screw
	Reset Method Automatic, Manual
	Number Of Auxiliary Contacts 2
	Width 45mm
	Depth 73mm
	Length 87mm
	Maximum Operating Temperature +70°C
	Minimum Operating Temperature -40°C
	Operating Temperature Range -40 → +70 °C
	Contact Voltage Rating 690 V ac

COO (Country of Origin):: DE

Siemens 3RU Series Overload Relay, 3.5 to 5A FLC Motor Rating, 3-Pole Configuration - 3RU2116-1FB0

This overload relay is essential for protecting motors by preventing overheating and damage. Designed for industrial use, it monitors and controls motor systems effectively. Its automatic and manual reset features ensure reliable operation, enhancing motor efficiency.

Features & Benefits

• Thermal design provides effective motor protection against overloads
• AC voltage rating up to 690V ensures versatile application
• Automatic reset feature allows for quick recovery after an overload
• Convenient screw terminals facilitate installation and connections
• Compact dimensions enable integration into confined spaces
• Dual auxiliary contacts offer diverse signalling options

Applications

• Suitable for 3-phase AC motors requiring precise protection
• Ideal for thermal overload monitoring
• Operable in environments with temperatures from -40°C to +70°C
• Employed in automation for effective motor control
• Used in machinery needing dependable overload safety features

How does this relay reset after an overload event?

The relay resets either automatically or manually, providing quick recovery based on conditions.

What is the suitable current rating range for this device?

It can handle a current rating between 3.5A and 5A, accommodating various motor sizes.

Can this relay be used in high-temperature environments?

Yes, it functions effectively in ambient temperatures up to 70°C, making it fit for various industrial scenarios.

Is there a specific installation position for this device?

There are no mounting position restrictions

it can be installed in any orientation.

What type of wiring connections does it support?

The relay features screw-type terminals for both main and auxiliary circuits, suitable for solid or stranded wires.