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Siemens 3RT2038-1NB30 80A Contactor, 20-33V AC/DC Coil, 1NO+1NC Aux

Siemens 3RT2038-1NB30 80A 3-pole contactor, 20-33V AC/DC coil, 1NO+1NC aux.

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ManufacturerSiemens

Part number3RT2038-1NB30

Type Power Contactor

Application AC-3e/AC-3

Current Rating 80 A

Power 37 kW / 400 V

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AC-3e/AC-3 rated 80A current capacity 37kW power handling 20-33V AC/DC coil Integrated varistor 1 NO + 1 NC auxiliary contacts Size S2

Product description

The Siemens 3RT2038-1NB30 is a versatile 3-pole power contactor designed for AC-3e/AC-3 duty, handling 80A and 37kW at 400V. It features a broad coil voltage range of 20-33V, compatible with both AC and DC power sources, making it highly adaptable. This size S2 contactor includes an integrated varistor for surge protection and provides 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for essential control and signaling. Secure screw terminals are used for connections.

This contactor is suitable for a wide array of industrial applications, particularly where a low, flexible control voltage is required, such as in systems powered by battery or specific low-voltage control power supplies. It is commonly used in mobile equipment, specialized machinery, and control panels requiring versatile voltage compatibility.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RT2038-1NB30. We are dedicated to providing reliable components to keep your operations running smoothly. Trust Stanlo Automation for quality surplus parts and expert support for your automation needs.

Technical specifications

Type	Power Contactor
Application	AC-3e/AC-3
Current Rating	80 A
Power	37 kW / 400 V
Poles	3
Coil Voltage	20-33 V AC/DC
Integrated Varistor	Yes
Auxiliary Contacts	1 NO + 1 NC
Terminals	Screw
Size	S2

Common applications

Motor control

Industrial automation

Low voltage control systems

Control panels

Mobile equipment

Specialized machinery

Compatible systems

Control systems requiring 20-33V AC/DC coil voltage and 80A switching capacity.

Also known as

Siemens 3RT2038-1NB30 Contactor Siemens 20-33V AC/DC Contactor 3RT2 Series Low Voltage

Replaces / compatible with

A flexible replacement for Siemens 3RT2 series S2 frame contactors, offering a wide 20-33V AC/DC coil voltage range for diverse control applications.

Technical note

Expert tip

The integrated varistor on this contactor provides essential protection against voltage transients when switching inductive loads, helping to safeguard connected control circuitry.

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Frequently asked questions

What is the coil voltage flexibility of the Siemens 3RT2038-1NB30?

The Siemens 3RT2038-1NB30 features a broad 20-33V AC/DC coil voltage range, allowing it to be used with various low-voltage AC or DC control power sources, providing significant application flexibility.