Siemens, 3RB3 Overload Relay 1 NO/1 NC, 10 to 40 A F.L.C, 40 A Contact Rating, 18.5 kW, 690V 3

RS Stock No.:: 216-2818
Mfr. Part No.:: 3RB3123-4VB0
Manufacturer:: Siemens

Siemens, 3RB3 Overload Relay 1 NO/1 NC, 10 to 40 A F.L.C, 40 A Contact Rating, 18.5 kW, 690V 3

Subtotal (1 unit)*

PHP23,322.58

(exc. VAT)

PHP26,121.29

(inc. VAT)

FREE delivery for orders over ₱3,000.00

Temporarily out of stock

Shipping from March 23, 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per Unit
1 +	PHP23,322.58

*price indicative

RS Stock No.:: 216-2818
Mfr. Part No.:: 3RB3123-4VB0
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	Overload Relay
	FLC Motor Rating	10 to 40 A
	Relay Contact Current	40 A
	Mount Type	Direct
	Series	3RB3
	Power Rating	18.5kW
	Pole and Throw Configuration	3
	Normal State Configuration	1 NO/1 NC
	Terminal Type	Screw
	IP Rating	IP20
	Reset Method	Automatic & Manual
	Width	45 mm
	Adjustable Current Range	10 to 40 A
	Number of Auxiliary Contacts	2
	Minimum Operating Temperature	-25°C
	Length	87mm
	Contact Voltage	690V
	Maximum Operating Temperature	60°C
	Standards/Approvals	IEC 61000-4-6, IEC 61000-4-5, IEC 61000-4-4, IEC 61000-4-3, IEC 61000-4-2, IEC 60529, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved, IEC 81346-2, UL Approved
	Depth	84mm
	Control Voltage	690V
	Supply Voltage	690 V

	Select all
	Brand Siemens
	Product Type Overload Relay
	FLC Motor Rating 10 to 40 A
	Relay Contact Current 40 A
	Mount Type Direct
	Series 3RB3
	Power Rating 18.5kW
	Pole and Throw Configuration 3
	Normal State Configuration 1 NO/1 NC
	Terminal Type Screw
	IP Rating IP20
	Reset Method Automatic & Manual
	Width 45 mm
	Adjustable Current Range 10 to 40 A
	Number of Auxiliary Contacts 2
	Minimum Operating Temperature -25°C
	Length 87mm
	Contact Voltage 690V
	Maximum Operating Temperature 60°C
	Standards/Approvals IEC 61000-4-6, IEC 61000-4-5, IEC 61000-4-4, IEC 61000-4-3, IEC 61000-4-2, IEC 60529, IEC 60068-2-27, EAC Approved, CSA Approved, CE Approved, CCC approved, IEC 81346-2, UL Approved
	Depth 84mm
	Control Voltage 690V
	Supply Voltage 690 V

Datasheet - 3RB3123-4VB0

COO (Country of Origin):: CZ

The Siemens SIRIUS 3RB series is a solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure which has a current rating up to 40 A. It has manual or automatic reset switch functionality. It has a size S0. It can be mounted with contactor mounting. The type of electrical connection for main circuit and for auxiliary circuit is through screw type terminal. Due to the wide current setting ranges and various tripping characteristics, complete series of motors are covered with just a few types. It has low heat loss which makes it energy-efficient and help to reduce the temperature rise in the control cabinet.

Ambient operating temperature is -25 to +60 °C

Operating frequency is 50 to 60 Hz

Trip class is CLASS 5E, 10E, 20E and 30E adjustable

Siemens, 3RB3 Overload Relay 1 NO/1 NC, 10 to 40 A F.L.C, 40 A Contact Rating, 18.5 kW, 690V 3

FREE delivery for orders over ₱3,000.00

Related links