RS Better World

Siemens 3RT2 Contactor, 24V ac Coil, 3-Pole, 38 A, 18.5 kW 24V ac, 3 NO, 400V ac

RS Stock No.:: 706-1406
Distrelec Article No.:: 300-50-635
Mfr. Part No.:: 3RT2028-1AB00
Manufacturer:: Siemens

Siemens 3RT2 Contactor, 24V ac Coil, 3-Pole, 38 A, 18.5 kW 24V ac, 3 NO, 400V ac

Subtotal (1 unit)*

SGD347.58

(exc. GST)

SGD378.86

(inc. GST)

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Temporarily out of stock

4 unit(s) shipping from 08 June 2026
Plus 3 unit(s) shipping from 24 June 2026

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Units	Per unit
1 +	SGD347.58

*price indicative

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RS Stock No.:: 706-1406
Distrelec Article No.:: 300-50-635
Mfr. Part No.:: 3RT2028-1AB00
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
	Coil Voltage	24V ac
	Product Type	Contactor
	Number of Poles	3
	Contact Voltage	400V ac
	Contact Current	38A
	Power Rating	18.5kW
	Series	3RT2
	Mount Type	DIN Rail
	Function	Motor Control
	Normal State Configuration	3 NO
	Auxiliary Contact Configuration	1 NO/1 NC
	Number of Auxiliary Contacts	2
	Terminal Type	Screw
	Minimum Operating Temperature	-25°C
	Operational Current Ie	50A
	Control Circuit Voltage Uc	24V ac
	Maximum Operating Temperature	60°C
	Depth	97mm
	Width	45mm
	Standards/Approvals	EAC
	Length	85mm
	Better World Claim	Low Carbon Manufacture
	Better World Product	Yes
	Pole and Throw Configuration	3P

	Select all
	Brand Siemens
	Coil Voltage 24V ac
	Product Type Contactor
	Number of Poles 3
	Contact Voltage 400V ac
	Contact Current 38A
	Power Rating 18.5kW
	Series 3RT2
	Mount Type DIN Rail
	Function Motor Control
	Normal State Configuration 3 NO
	Auxiliary Contact Configuration 1 NO/1 NC
	Number of Auxiliary Contacts 2
	Terminal Type Screw
	Minimum Operating Temperature -25°C
	Operational Current Ie 50A
	Control Circuit Voltage Uc 24V ac
	Maximum Operating Temperature 60°C
	Depth 97mm
	Width 45mm
	Standards/Approvals EAC
	Length 85mm
	Better World Claim Low Carbon Manufacture
	Better World Product Yes
	Pole and Throw Configuration 3P

COO (Country of Origin):: DE

Siemens size S0, 3RT2 Series Contactor, 24V AC Coil Voltage, 38A Current Rating - 3RT2028-1AB00

This contactor is an essential component for industrial applications requiring reliable control of electrical circuits. With a compact size S0 design and dimensions of 85mm x 45mm x 97mm, this versatile device serves as a 3-pole contactor capable of handling a contact current rating of 38A at a voltage of 400V AC. Designed for DIN rail mounting, this 24V AC contactor ensures efficient operation across various automation systems.

Features & Benefits

• 3-pole configuration enhances circuit control capabilities

• Utilises 24V AC voltage for diverse usage

• Handles up to 38 A contact current rating

• Designed for DIN rail mounting for space-efficient installations

• Equipped with auxiliary contacts for added functionality

Applications

• Used for switching and controlling motors in industrial setups

• Ideal for automation systems where reliability is crucial

• Utilised in combination with auxiliary contacts for complex control scenarios

• Essential in environments with temperature variations from -25°C to +60°C

What are the operational temperature limits for this device?

The operational limits range between -25°C and +60°C, ensuring functionality in various environmental conditions.

How does the auxiliary contact configuration enhance its functionality?

The configuration of 1 NO + 1 NC auxiliary contacts allows for expanded control options, facilitating complex switching applications.

What installation considerations should be taken into account when mounting this contactor?

It can be installed on a DIN rail and can rotate +/-180° for flexibility, requiring appropriate spacing of 10mm for side-by-side mounting.