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Siemens 3RT2036-1NB30-1AA0 51A 22kW 3-Pole Contactor

Siemens 3RT2036-1NB30-1AA0 51A 3-pole power contactor, upright mount.

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ManufacturerSiemens

Part number3RT2036-1NB30-1AA0

Poles 3

Rated operational current AC-3e/AC-3 (690V) 51 A

Rated operational power AC-3e/AC-3 (400V) 22 kW

Coil voltage 20-33 V AC/DC

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AC-3e/AC-3 rating Universal AC/DC coil Integrated varistor Upright mounting 1 NO + 1 NC auxiliary contacts Size S2

Product description

The Siemens 3RT2036-1NB30-1AA0 is a 3-pole power contactor built for AC-3e/AC-3 applications, rated for 51A and 22kW at 400V. It features a 20-33V AC/DC coil and includes an integrated varistor for surge protection. This specific model is designed for upright mounting and comes with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact. Connections are made via screw terminals.

This contactor is suitable for a wide range of industrial applications, including motor control, switching loads, and automation systems. The upright mounting capability allows for flexible installation in control cabinets where space or configuration demands it. Its robust design ensures reliability in demanding environments.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, provides the Siemens 3RT2036-1NB30-1AA0. We offer competitive pricing and quick access to essential components. Partner with Stanlo for your automation needs and benefit from our extensive inventory.

Technical specifications

Poles	3
Rated operational current AC-3e/AC-3 (690V)	51 A
Rated operational power AC-3e/AC-3 (400V)	22 kW
Coil voltage	20-33 V AC/DC
Frequency	50/60 Hz
Auxiliary contacts	1 NO + 1 NC
Terminals	Screw
Mounting position	Upright
Varistor	Integrated

Common applications

Motor control

Load switching

Control panels

Industrial automation

Machine building

Upright mounting installations

Compatible systems

Industrial control panels Automation systems Motor starter circuits

Also known as

Siemens 3RT2036 Upright Contactor 3RT20 Series Contactor Siemens 51A Contactor

Replaces / compatible with

The Siemens 3RT2036-1NB30-1AA0 is designed for standard industrial switching and control tasks. It can replace similar Siemens contactors or those from other manufacturers with equivalent specifications, particularly where upright mounting is required.

Technical note

Expert tip

When mounting upright, ensure adequate ventilation around the contactor to prevent overheating, especially under continuous load.

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Frequently asked questions

What is the specific mounting orientation for the Siemens 3RT2036-1NB30-1AA0?

The Siemens 3RT2036-1NB30-1AA0 power contactor is designed for upright mounting. This orientation is specified to ensure proper operation and heat dissipation within control panels.