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Baomain Normally Open AC Contactor 110VAC 40A 2 Pole 2NO Universal Circuit Control 35mm DIN Rail Mount CE Listed BCT-40/20 (40 Amp.)

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$16.59

$ 7 .99 $7.99

In Stock

1.Model:16 Amp.


  • Rated Coil Voltage : AC 110V; 50/60Hz; Max. Power:1.6W
  • Contact: 2 Normally Open, 2 Pole NO (2NO)
  • Rated Current(Ith): 40A; Ui : 500V; Ue: 250V; AC-7a 40A, AC-7b 18A
  • Size: 85 x 36 x 65mm / 3.35" x 1.42" x 2.6"(L*W*T)
  • Mounting Type: 35mm DIN Rail Mount; Weight: 220g
  • Note: AC contactors are designed for AC power input, with key components like electromagnetic and contact systems tailored for AC characteristics. They must not be powered by DC, as they only operate stably within specified AC voltage ranges



Product Description

AC Contactor 40A 2 Pole

The miniature AC contactor is mainly suitable for power systems with AC 50Hz/60Hz, rated operating voltage up to 400V and rated operating current up to 125A, in utilization category AC-1 (non-inductive or low-inductivity loads, resistance furnaces, household appliances and similar low-inductivity loads), used for control circuits, household motor loads.

Domestic contactors are not used to interrupt short-circuit current, so appropriate short-circuit protection devices (such as small circuit breakers) should be chosen.

Comply with IEC61095, GB17885 standards. IEC60947-4-1, GB/T 14048.4.

BCT AC Contactor Specifications

Product Type AC Contactor
Application Household appliances, household motors
Control voltage 12V/24V/110V/220V AC
Contact type 2NO/2NC/1NO 1NC
Frequency 50/60Hz
Current rating (Ith) 40A; Ui : 500V; Ue: 250V; AC-7a 40A, AC-7b 18A
Maximum Power 1.6W
Uimp 2.5kV (4kV for 12/24/48VAC)
Operating temperature -5℃~+60℃
Storage temperature -40℃~+70℃
Pollution Level II.
Endurance (O-C) 1,000,000 cycles
Electrical 100,000 cycles
CONTACTOR 50A
BCT-50 50A CONTACTORS

FUNCTION AND APPEARANCE

  • Modular control device with compact size.
  • Rail-mounted, standardized dimensions, and enhanced safety.
  • Features a direct-acting inverted design, allowing combined installation with miniature circuit breakers in control and lighting panels.

Terminal Design:

  • Tunnel-type terminals ensure simple, reliable wiring with a double-clamp structure for secure conductor retention.

Status Indication:

  • Break-make display provides clear visual feedback for ON/OFF states, enhancing operational monitoring.

Safety Housing:

  • Flame-retardant thermoset shell resists ignition—exposed to flames, it chars gradually without sustained combustion.

Note:

  1. AC contactors are designed for AC power input, with key components like electromagnetic and contact systems tailored for AC characteristics. They must not be powered by DC, as they only operate stably within specified AC voltage ranges.
  2. When Using Class 2 Contactors:If contactors or contactors and circuit breakers are installed side by side, spacing plates must be added between them to ensure proper heat dissipation.Derating is required if the internal temperature of the distribution panel exceeds limits.
 AC CONTACTORS

Jason B.
Reviewed in the United States on April 20, 2025
Works perfectly. Needed a replacement for my electric brewing setup. Easy to install and got me back up and running quickly.
Jose
Reviewed in Canada on August 6, 2024
It seems to be a good product. I recommend this for ligh /medium use
Customer
Reviewed in the United States on June 23, 2024
Simple á installer .
Gopiballava
Reviewed in the United States on June 17, 2024
It has a 60 Hz buzz, which is annoying. But it seems fine other than that.
cti2019
Reviewed in the United States on October 20, 2024
This does have a 60hz buzz when triggered. My other contactors don't do this, so it's likely a consequence of the design or specs on this. Aside from that, it works well for switching a high current heating element in my application. Enjoy.
TB
Reviewed in the United States on April 27, 2024
Everything you would like to see in a relay. I really like using these devices. Depending on the project, I use these and a pair of buttons to latch the coil and energize a belt sander, table saw, or a 75 year old craftsman motor. The contacts are similar to those you'd find in a circuit breaker which is good when working with line voltage. These contactors are available in 2-4 poles and some have additional, isolated, NO + NC contacts.Cheers
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