Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 20 → 25 A F.L.C, 25 A Contact Rating, 11 kW, 3P, SIRIUS

RS Stock No.:: 706-1673
Mfr. Part No.:: 3RU2126-4DB0
Manufacturer:: Siemens

Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 20 → 25 A F.L.C, 25 A Contact Rating, 11 kW, 3P, SIRIUS

Subtotal (1 unit)**

SGD81.39

(exc. GST)

SGD88.72

(inc. GST)

2 In Global stock for delivery within 5 working day(s)*

9 In Global stock for delivery within 4 working day(s)

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

FREE delivery for orders over SGD250.00 (ex GST)

Units	Per unit
1 +	SGD81.39

**price indicative

RS Stock No.:: 706-1673
Mfr. Part No.:: 3RU2126-4DB0
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 Thermal Overload Relay, 1NO + 1NC Normal State Configuration, Screw Terminal - 3RU2126-4DB0

This thermal overload relay is designed for effective motor protection with a contact current rating of 25A. It operates within a temperature range of -40 to +70°C and can be mounted directly onto the contactor. With dimensions of 85mm x 85mm x 85mm, it fits well in compact spaces, ensuring safety and performance.

Features & Benefits

• Manual and automatic reset options provide flexibility
• Thermal overload releases ensure reliable motor protection
• 690V AC capability for high voltage applications
• Compact design allows for easy integration in control systems
• Efficient power loss management for energy savings
• Integrated contact configuration supports comprehensive monitoring

Applications

• Motor protection in manufacturing equipment
• Suitable for assembly lines requiring motor control
• Ideal for robotic systems needing overload protection
• Employed in HVAC systems for motor safety

Can it handle a maximum operating temperature of +70°C?

Yes, it operates effectively up to +70°C.

Will it provide protection in high humidity conditions?

Yes, it functions within relative humidity levels of 10 to 95%.

Is it compatible with both direct mounting and screw terminals?

Yes, the relay supports direct mounting and has screw terminals.

Can the relay be used in a three-phase AC motor application?

Yes, it is suitable for three-phase AC motor systems with a rating of 25A.

Does it require specific installation heights?

No, it can be installed at a maximum altitude of 2000m.

Siemens Sirius Range Contactor & Control Relays

Attribute	Value
FLC Motor Rating	20 → 25 A
Contact Current Rating	25 A
Range	SIRIUS
Pole Configuration	3P
Series	SIRIUS 3RU2
Mounting Style	Direct Contactor
Power Rating	11 kW
Normal State Configuration	NO/NC
Reset Method	Automatic, Manual
Terminal Type	Screw
Width	45mm
Number Of Auxiliary Contacts	2
Depth	85mm
Length	85mm
Maximum Operating Temperature	+70°C
Minimum Operating Temperature	-40°C
Operating Temperature Range	-40 → +70 °C
Contact Voltage Rating	690 V ac