RS Better World

Siemens 3RT2 Contactor, 24V dc Coil, 3-Pole, 16 A, 7.5 kW 24V dc, 1 NC, 400V ac

RS Stock No.:: 203-2680
Distrelec Article No.:: 304-22-065
Mfr. Part No.:: 3RT2018-1FB42
Manufacturer:: Siemens

Siemens 3RT2 Contactor, 24V dc Coil, 3-Pole, 16 A, 7.5 kW 24V dc, 1 NC, 400V ac

Subtotal (1 unit)*

SGD367.61

(exc. GST)

SGD400.69

(inc. GST)

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Plus 4 unit(s) shipping from 15 June 2026
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Units	Per unit
1 +	SGD367.61

*price indicative

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RS Stock No.:: 203-2680
Distrelec Article No.:: 304-22-065
Mfr. Part No.:: 3RT2018-1FB42
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 dc
	Product Type	Contactor
	Number of Poles	3
	Contact Voltage	400V ac
	Contact Current	16A
	Power Rating	7.5kW
	Series	3RT2
	Function	Motor Control, Reversing
	Mount Type	Snap-On
	Normal State Configuration	1 NC
	Auxiliary Contact Configuration	1 NC
	Number of Auxiliary Contacts	1
	Terminal Type	Screw Clamp
	Contactor Application	Motor Control
	Control Circuit Voltage Uc	24V dc
	Minimum Operating Temperature	-25°C
	Operational Current Ie	16A
	Maximum Operating Temperature	60°C
	Length	58mm
	Standards/Approvals	CCC, CSA, EAC, UL
	Width	45mm
	Depth	73mm
	Better World Product	Yes
	Better World Claim	Low Carbon Manufacture
	Pole and Throw Configuration	3P

	Select all
	Brand Siemens
	Coil Voltage 24V dc
	Product Type Contactor
	Number of Poles 3
	Contact Voltage 400V ac
	Contact Current 16A
	Power Rating 7.5kW
	Series 3RT2
	Function Motor Control, Reversing
	Mount Type Snap-On
	Normal State Configuration 1 NC
	Auxiliary Contact Configuration 1 NC
	Number of Auxiliary Contacts 1
	Terminal Type Screw Clamp
	Contactor Application Motor Control
	Control Circuit Voltage Uc 24V dc
	Minimum Operating Temperature -25°C
	Operational Current Ie 16A
	Maximum Operating Temperature 60°C
	Length 58mm
	Standards/Approvals CCC, CSA, EAC, UL
	Width 45mm
	Depth 73mm
	Better World Product Yes
	Better World Claim Low Carbon Manufacture
	Pole and Throw Configuration 3P

COO (Country of Origin):: DE

Siemens size S00, 3RT2 Series Contactor, 24V DC Coil Voltage, 16A Current Rating - 3RT2018-1FB42

This contactor is designed for efficient control in automation systems. With a robust construction, it features a compact design measuring 58mm in length, 45mm in width, and 73mm in depth. This versatile component operates with a coil voltage of 24V DC and is suitable for loads up to 16A at 400V AC. Ideal for reversing applications, it integrates well within various electrical systems.

Features & Benefits

• Integrated diode improves switching reliability

• Designed for DIN rail mounting, simplifying installation

• Operational temperature range of -25°C to +60°C allows versatility

• Auxiliary contacts enable expanded functionality

Applications

• Utilised in automation control panels

• Effective in motor control in industrial settings

• Suitable for reversing motor

• Ideal for use in high-performance electrical systems

• Used in conjunction with various auxiliary devices

What is the rated operational current at 400V for this component?

The operational current at 400V is rated at 16A, making it suitable for various applications.

How does the integrated diode enhance performance?

The diode prevents back EMF from damaging the control circuit, ensuring longevity and reliability.

What is the significance of the contact configuration?

With a 3-pole configuration and an auxiliary NC contact, this design offers flexibility in control applications.

What should be considered regarding installation height?

It can be installed at altitudes up to 2000m above sea level, which is suitable for many industrial environments.