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400 amp 3 phase AC Magnetic Contactor, 24V/110V/220V Coil

5 out of 5 based on 2 reviews | Write a review

$558.67

3 phase AC magnetic contactor at economical price, 3 pole, with rated current up to 400 amps, is mainly used in switching and controlling electric motors for industrial applications. This AC contactor relay has a wide selection of coils voltage and contact form.

Coil Rated Voltage *
Auxiliary Contact *

SKU: ATO-ACCON-400A

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Delivery date: 6-12 days

Overview
Related Video

3 pole 3 phase AC magnetic contactor with 24V/110V/220V coils is a form of electrical relay found on electric motors. It is used for long distance breaking circuit and frequently starting or controlling motors.

Specification

Model		ATO-CJX2-F400
Rated Current	le max AC-3 (Ue≤440V)	400A
Rated Current	le max AC-1 (θ≤40°C)	500A
Coil Rated Voltage (Optional)		110V AC, 220V AC, 380V AC
Contact Form		3NO
Auxiliary Contact (Optional)		2NO, 2NC, 1NO+1NC, 2NO+2NC, 1NC+3NO, 4NO, 4NC
Frequency		50Hz/ 60Hz
Rated Insulated Voltage (Ui)		1000V
Rated Impulse Withstand Voltage (Uimp)		8kV
Rated Operational Voltage		440V
Conventional Thermal Current (θ≤40°C)		500A
Operation Frequency	AC-1, AC-2, AC-3	600 times/h
Operation Frequency	AC-4	300A
Rated Power (AC-3)	220/240V	110kW
	380/400V	200kW
	415V	220kW
	440V	250kW
	500V	257kW
	660/690V	280kW
	1000V	185kW
Connection/ Wiring	Number of Lines	2
	Line Size	30x5mm²
	Cable with Splicing	2x150mm²
	Screw Diameter	φ10
Tightening Torque		35N.m
Standards-Compliant		IEC60947-4-1, GB14048.4, EN60947-4-1
Dimensions		206 x 213 x 219mm
Weight		19.5kg

Details

Tips: Why do you need to buy an ATO AC magnetic contactor?

The AC magnetic contactor is generally used to start and control equipment. It uses different control wiring methods to control the forward and reverse rotation, start and stop of the electrical motor, and can realize remote control by controlling the length of the cable. Changing the connection can also realize multiple controls. In the state of power failure, the motor can be stopped to prevent it from running due to the power on again, which will protect the operators from unforeseen injuries. Of course, the motor can be started manually after the power goes on again. The AC contactor can be used together with an overheating relay or a motor protector to achieve the purpose of protecting the motor.

Essential Electronic Components in Electrical Systems

Welcome back to the ATO Channel, you go-to source for electrical and industrial automation insights.

Electromagnetic Switches: Relays VS. Contactors

In this video we will try to clear the confusion many people have between relays and contactors by showing you how to tell the difference based on five criteria: Definition, Capacity, Structure, Contacts and Applications.

3-phase motor reverse connection

In this video, we have 120V/220V/240/380V/415V AC motors with power from 1hp~100hp, widely used to drive various industrial machines such as fans, pumps, machine tools.

Existing reviews of 400 amp 3 phase AC Magnetic Contactor, 24V/110V/220V Coil

Contactor recommendation

I need a contactor for the soft starter. I found that the contactor coil needs 220 volts to adapt to my system. Do you have any recommendations?

From: Kerigou | Date: 03/06/2025

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ATO Responded

We recommend our ATO-CJX2-F400 contactor, which has a coil voltage of 220 volts.

Some questions about AC magnetic contactor

I’m not sure that I have the right part. Here is a picture of the contacts that I received. My understanding is that these would have normally closed contacts, rather than normally open contacts.
I need normally closed contacts for the 400Amp connection itself, not for ancillaries. I need to make sure that the main contacts are normally closed so that they only open when I energize the coil.

From: lailli | Date: 12/06/2023

Was this review helpful? Yes No (0/0)

ATO Responded

The contact has Mo main circuit normally closed contacts, only normally open contacts.
Only auxiliary contacts can be normally closed.
But do not worry, we will resend you the normally closed auxiliary contact parts.

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