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
Manufacturer:: 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)**

R 1 031,11

(exc. VAT)

R 1 185,78

(inc. VAT)

11 Available from UK/Europe in 4–6 working days for collection or delivery to major cities (Heavy, hazardous or lithium product excluded. Delivery T&C's apply)*

* Delivery dates may change based on your chosen quantity and delivery address.

FREE delivery for orders over R 1500

Not Available for premium delivery

Units	Per unit
1 +	R 1 031,11

**price indicative

RS stock no.:: 706-1566
Mfr. Part No.:: 3RU2116-1FB0
Manufacturer:: Siemens

Overload Relay - 3RU range

Switch position indicator and test function
STOP button
Selector switch for manual/automatic reset
Screw connection or Spring-clamp versions
Impulse voltage resistance 6 kV
Insulation voltage 690V
Surface or DIN-rail stand-alone mounts available, see 706-1699 etc

The 3RU21 thermal overload relays up to 80 A have been designed for current-sensitive protection of loads with normal starting.
These thermal overload relays for use with Sirius Size S0 & S00 Contactors

Note

Screw terminals can only be used with screw terminal overloads and spring terminals can only be used with spring terminal overloads.

Approvals

CE, UL, CSA

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.

Attribute	Value
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
Length	87mm
Depth	73mm
Minimum Operating Temperature	-40°C
Maximum Operating Temperature	+70°C
Operating Temperature Range	-40 → +70 °C
Contact Voltage Rating	690 V ac