Chint original NCK5 Definite Purpose Contactor NCK5-25 NCK5-32 NCK5-40 CHNT Air Conditioner Contactor

Chint NCK5 Definite Purpose Contactor 20~40A

Overview

1.1 Product certification: UL, CSA
1.2 Application: HVACR
1.3 Usage category: AC-1, AC-8a
1.4 Rated insulation voltage Ui: 630V
1.5 Applicable standard: UL/CSA 60947-4-1
1.6 Normal operating conditions:
Ambient air temperature: -5℃~+40℃
  Pollution degree: 2.
  Altitude: ≤2000m
  Mounting angle: The inclination between the mounting surface and vertical plane cannot exceed ±5°.
1.7 IP00

Product features

3.1 The coil is closed.
3.2 The range of coil voltage is complete, including 24V-480V. A wide range covering 208V-240V is available for user selection.
3.3 3 Poles,4 poles: The coil connection can be up or down, with 2 quick-plug connections, 1 quick-plug + screwed connection for user selection.
3.4 3 Poles,4 pole: The main circuit has diverse wiring modes: combined screw, box lug and two quick-plug combinations.
3.5 1 pole,2 pole:The main circuit has diverse wiring modes combined screw,box lug and two quick-plug or four quick-plug combination.

Weight

2 kg

Dimensions

25 × 25 × 25 cm

Number of Pole

1, 3, 2

Main Circuit Rating Voltage

380V, 230v, 220v, 120v, 110v, 24v

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Chint NCK5 Definite Purpose Contactor

Electricity Type:AC
Brand Name:Chint
Place of Origin:China
Model Number:NCK5
Phase:1
Main Circuit Rating Current:20A ~ 40A

SKU: 1600084520020 Category: Chint Contactor & Overload Relays

Where to Use NCK5 Contactor?

The Chint NCK5 Definite Purpose Contactor is an industrial-grade AC contactor designed for air conditioning systems, heat pumps, refrigeration equipment, and HVAC control panels. With current ratings from 0.1A - 630A and 3P / 4P pole configuration.

Technical Specifications

Model Series	NCK5
Rated Current (AC3)	0.1A - 630A
Pole Configuration	3P / 4P
Coil Voltage	220V/380V AC/DC
Utilization Category	AC-3 (Motor Control) / AC-1 (Resistive)
Standard	IEC 60947-4-1

Frequently Asked Questions

Q: How do I select the right contactor size for my motor?

A: The contactor should be rated for at least the motor's full load current (FLC). For AC-3 duty, use the motor's rated current. For heavy start applications, consider the next size up.

Q: Do I need an overload relay with this contactor?

A: Yes, a contactor provides switching control but does NOT protect against motor overload. You need a thermal overload relay (such as Chint NR2/NXR series) mounted directly below the contactor.