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Siemens 3RT2047-1NB30 S3 Power Contactor - 110A, 20-33V AC/DC Coil

Siemens 3RT2047-1NB30 S3 power contactor, 110A, 20-33V AC/DC coil.

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ManufacturerSiemens

Part number3RT2047-1NB30

Type Power Contactor

Part Number 3RT2047-1NB30

Manufacturer Siemens

Poles 3

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110A AC-3e/AC-3 rating 55kW @ 400V Wide-range 20-33V AC/DC coil Integrated varistor for surge protection 1 NO + 1 NC auxiliary contacts Size S3

Product description

The Siemens 3RT2047-1NB30 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 110A and 55kW at 400V. It features a wide-range 20-33V AC/DC control coil and includes an integrated varistor for surge protection. This model is equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact. The main circuit uses screw terminals, and it is built in size S3.

This contactor is ideal for applications where a low, versatile AC/DC control voltage is required, often found in battery-powered systems or specific automation setups. The integrated varistor provides protection against voltage spikes, making it suitable for demanding industrial environments.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RT2047-1NB30. We are dedicated to providing quality industrial automation components and reliable service to our customers.

Technical specifications

Type	Power Contactor
Part Number	3RT2047-1NB30
Manufacturer	Siemens
Poles	3
AC-3e/AC-3 Current	110 A
Power @ 400V	55 kW
Coil Voltage	20-33 V AC/DC
Integrated Varistor	Yes
Auxiliary Contacts	1 NO + 1 NC
Terminals	Screw
Size	S3

Common applications

Low voltage control systems

Battery-powered equipment

Industrial automation

Control panels

Machinery

Specialty applications

Compatible systems

Low-voltage control systems operating on 20-33V AC or DC

Also known as

Siemens 3RT2047-1NB30 Contactor SIRIUS 3RT2047-1NB30 Siemens 110A Low Voltage Contactor

Replaces / compatible with

This Siemens 3RT2047-1NB30 is suitable for replacing older low-voltage control contactors and offers added protection with its integrated varistor.

Technical note

Expert tip

The wide-range AC/DC coil simplifies wiring in systems where multiple low control voltages might be present, enhancing design flexibility.

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Frequently asked questions

What is the benefit of the 20-33V AC/DC coil on the Siemens 3RT2047-1NB30?

The 20-33V AC/DC coil on the Siemens 3RT2047-1NB30 provides flexibility for low-voltage control applications, including those powered by AC or DC sources within this range. This makes it ideal for specialized automation systems and battery-powered equipment.