Siemens, 3RU Thermal Overload Relay 1 NO/1 NC, 3 A Contact Rating, 4 kW 3

RS Stock No.:: 751-5988
Mfr. Part No.:: 3RU2126-1JC0
Manufacturer:: Siemens

Siemens, 3RU Thermal Overload Relay 1 NO/1 NC, 3 A Contact Rating, 4 kW 3

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Subtotal (1 unit)*

PHP7,218.16

(exc. VAT)

PHP8,084.34

(inc. VAT)

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Shipping from March 23, 2026

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Units	Per Unit
1 +	PHP7,218.16

*price indicative

RS Stock No.:: 751-5988
Mfr. Part No.:: 3RU2126-1JC0
Manufacturer:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Product Type	Thermal Overload Relay
	Relay Contact Current	3 A
	Mount Type	Direct
	Series	3RU
	Power Rating	4kW
	Pole and Throw Configuration	3
	Terminal Type	Spring Loaded
	Normal State Configuration	1 NO/1 NC
	Reset Method	Automatic & Manual
	IP Rating	IP20
	Minimum Operating Temperature	-20°C
	Width	87 mm
	Adjustable Current Range	7 to 10 A
	Number of Auxiliary Contacts	2
	Contact Voltage	220, 400V dc
	Maximum Operating Temperature	70°C
	Length	45mm
	Standards/Approvals	UL Approved, IEC 61508, IEC 65029, IEC 81346-2, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved
	Depth	73mm

	Select all
	Brand Siemens
	Product Type Thermal Overload Relay
	Relay Contact Current 3 A
	Mount Type Direct
	Series 3RU
	Power Rating 4kW
	Pole and Throw Configuration 3
	Terminal Type Spring Loaded
	Normal State Configuration 1 NO/1 NC
	Reset Method Automatic & Manual
	IP Rating IP20
	Minimum Operating Temperature -20°C
	Width 87 mm
	Adjustable Current Range 7 to 10 A
	Number of Auxiliary Contacts 2
	Contact Voltage 220, 400V dc
	Maximum Operating Temperature 70°C
	Length 45mm
	Standards/Approvals UL Approved, IEC 61508, IEC 65029, IEC 81346-2, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved
	Depth 73mm

COO (Country of Origin):: DE

Overload Relays - 3RU Range

Size 00

Dimensions; H92mm x W45mm x D110mm

For use with contactors rated 3-5.5kW

Manual; Auto Reset

Siemens SIRIUS Cage Clamp Technology

As an alternative to screw connections a large number of Siemens low voltage components are also available with cage clamp connections.,Solid, stranded and finely stranded conductors, with or without end sleeves, can be connected, where two conductors can be clamped independent of one another at each terminal.,Inserting a flat bladed screwdriver opens the terminal; the conductor is then introduced and securely clamped following the removal of the screwdriver. The chromium-nickel spring steel of the cage clamp terminal guarantees corrosion resistant contact of the conductors.

Advantages

Time saving: the connection can be made quickly without having to press on end sleeves

Reliability: the terminal connection is resistant to shock and vibration

Vertical Mounting

Reduced maintenance: the cage clamp system means that the checking of screw connections following transportation is unnecessary

Note

Most of the Sirius 3R components are available with cage clamp connections. For the size S00 products, with rating up to 5.5kW, this includes both power and control circuit connections. For higher rated products cage clamp is available for the control wiring connections such as operating coils and auxiliary contacts.