NCK3 25/2 Contactor
Chint NCK3-25/2 Definite Purpose Contactor, 25A, 2-Pole, 230V Coil
25A, 2-pole definite purpose AC contactor with 2NO main contacts, designed for HVACR systems and light-duty industrial control. Equipped with a 230V AC operational coil and compliant with IEC/UL standards.
The Chint NCK3-25/2 is a compact, 2-pole definite purpose AC contactor rated 25A, designed for HVACR systems, small motor loads, resistive circuits, and industrial automation panels. With a 230V AC operational coil and 2NO main contacts, it provides reliable switching performance according to IEC and UL standards.
Key Features
2-pole definite purpose contactor rated 25A
2 Normally Open (2NO) main contacts
230V AC coil, 50/60 Hz
Rated insulation voltage up to 630V
Utilization category AC-1 and AC-8a suitable for resistive and HVAC loads
Complies with IEC/EN 60947-4-1 and UL/CSA standards
IP00 protection—for internal panel installation
Compact size for HVAC units and control panels
Suitable for compressors, blowers, fans, heaters, and small industrial circuits
Technical Specifications
| Parameter | Value |
|---|---|
| Model | NCK3-25/2 |
| Brand | Chint |
| Product Type | Definite Purpose Contactor |
| Current Rating | 25 A |
| Number of Poles | 2 Pole (2NO) |
| Main Contact Type | 2 NO |
| Coil Voltage | 230V AC, 50/60 Hz |
| Rated Insulation Voltage (Ui) | 630 V |
| Utilization Category | AC-1, AC-8a |
| Standards | UL/CSA 60947-4-1, IEC/EN 60947-4-1 |
| Protection Class | IP00 |
| Dimensions | 92 × 55 × 67 mm |
| Frequency | 50/60 Hz |
| Typical Applications | HVACR, compressors, fans, blowers, heaters |
| Mounting | Panel mounting |
Applications
HVACR units (compressors, condensers, blowers, fans)
Refrigeration equipment
Air handling units & heat pumps
Light-duty motor switching
Control system interlocking
Resistive heating applications
Commercial and industrial automation panels
What’s in the Box?
1 × Chint NCK3-25/2 Definite Purpose Contactor
Product label with wiring details
Basic user instruction leaflet (if provided by manufacturer)
FAQ
Q1. What is the current rating of the Chint NCK3-25/2?
A1. It is rated 25A, suitable for HVAC loads and light-duty industrial control.
Q2. What is the contact configuration?
A2. It has 2 Normally Open (2NO) power contacts.
Q3. What coil voltage does this model use?
A3. This variant operates on a 230 V AC, 50/60 Hz coil.
Q4. Where is this contractor used?
A4. Mainly in HVACR systems, compressors, blowers, heat pumps, and control panels.
Q5. Does it comply with international safety standards?
A5. Yes, it meets UL/CSA and IEC/EN 60947-4-1 standards.
Q6. Is it DIN rail mountable?
A6. No, this model is typically panel-mounted.