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Siemens 3RT2028-1NP30 38A AC/DC Contactor with Varistor

Siemens 3RT2028-1NP30 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2028-1NP30

Type Power Contactor

AC-3e/AC-3 Rating 38 A

Power Rating 18.5 kW / 400 V

Poles 3

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Wide-range 200-280V AC/DC coil Integrated varistor 38A AC-3e/AC-3 rating 1 NO + 1 NC auxiliary contacts Screw terminals Size S0

Product description

The Siemens 3RT2028-1NP30 is a 3-pole power contactor for AC-3e/AC-3 use, rated at 38A and 18.5 kW at 400V. It boasts a broad coil voltage range of 200-280V AC/DC and includes an integrated varistor for overvoltage protection. This model comes with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.

This contactor is ideal for applications where a wide and flexible coil voltage input is needed, accommodating various control power sources. The integrated varistor offers reliable protection against voltage spikes, enhancing system longevity. It's commonly applied in motor control, industrial automation, and power switching scenarios across diverse industries.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, provides the Siemens 3RT2028-1NP30. We are dedicated to offering quality components and reliable service to ensure your industrial operations continue without interruption.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	38 A
Power Rating	18.5 kW / 400 V
Poles	3
Coil Voltage	200-280 V AC/DC
Frequency	50/60 Hz
Varistor	Integrated
Auxiliary Contacts	1 NO + 1 NC
Terminals	Screw
Size	S0

Common applications

Motor control

Industrial automation

Control panels

Power distribution

High voltage fluctuation environments

HVAC

Compatible systems

Siemens Sirius 3RT Series Control systems operating within 200-280V AC/DC control voltage range with integrated surge protection needs

Also known as

Siemens 3RT2028 Wide-range Contactor 3RT2028 Contactor 200-280V Siemens Sirius 3RT

Replaces / compatible with

Suitable for replacing Siemens 3RT2028 models requiring a broad AC/DC coil voltage range (200-280V) and integrated surge protection. Always confirm compatibility.

Technical note

Expert tip

The integrated varistor provides effective suppression of coil transients, making this contactor suitable for use in environments with potential voltage fluctuations.

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Frequently asked questions

What is the coil voltage range for the Siemens 3RT2028-1NP30?

The Siemens 3RT2028-1NP30 features a wide coil voltage range of 200-280V AC/DC. This flexibility is beneficial for installations with varying control power sources.