Chint NC8-12 Contactor Series
Chint NC8-12 AC Contactor, 12A, 3P, Auxiliary 1NO+1NC
12A, 3-pole AC contactor for remote switching and control of AC motors up to 690V. Compact, panel-friendly design with 1NO+1NC auxiliaries and wide coil voltage options, compatible with thermal overload relays for full motor protection.
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Chint NC8-12 is a compact, industrial-grade AC contactor rated 12A in AC-3 duty at 415V, designed for frequent starting and stopping of AC motors and general power control. With 3 main poles, built-in 1NO+1NC auxiliary contacts, and multiple coil voltage options, it is ideal for OEM machines, MCCs, and automation panels.
Key Features
12A rated operational current in AC-3 at 415V, suitable for small to medium AC motors
Rated operational voltage up to 690V AC, 50/60 Hz
Available in 3-pole and 4-pole configurations within the NC8-12 family
Standard variants include 1 NO + 1 NC auxiliary contacts for signalling and interlocks
Wide AC/DC coil voltage options—24V, 48V, 110V, 230V, 380V (model-dependent)
Designed for frequent switching of AC motors and power circuits in industrial environments
Compact, modular design for easy integration in crowded control panels
Compatible with Chint thermal overload relays (NR2 series) to form complete motor starters
Supports use of auxiliary contact blocks, delay modules, mechanical interlocks and surge suppressors
Built to IEC/EN 60947-4-1 international standards for low-voltage switchgear
Technical Specifications
| Parameter | Value |
|---|---|
| Model | NC8-12 |
| Brand | Chint |
| Series | NC8 AC Contactor Series |
| Product Type | AC Power Contactor |
| Rated Operational Current (AC-3) | 12 A at 415 V |
| Rated Operational Voltage (Ue) | Up to 690 V AC, 50/60 Hz |
| Poles | 3-pole (3P) standard; 4-pole variants in series |
| Main Contacts | 3 NO (typical power contacts, variant-dependent) |
| Auxiliary Contacts | 1 NO + 1 NC (typical NC8-12 variant) |
| Coil Type | AC or DC operational (by selected variant) |
| Typical Coil Voltage Options | 24V, 48V, 110V, 230V, 380V (AC/DC as per model) |
| Utilization Category | AC-3 (motor starting), AC-1 (non-inductive loads) |
| Standards Compliance | IEC/EN 60947-4-1 |
| Accessories | Aux contact blocks, delay modules, mech. interlocks, suppressors |
| Mounting | DIN rail and panel/screw mounting |
| Application | Remote switching and control of AC motors and circuits |
| Approx. Dimensions (L × W × H) | ~4.7 × 14.7 × 13.5 cm (with packing) |
| Approx. Weight | ~0.95 kg |
Applications
DOL starters and control for small/medium AC induction motors
Machine tools, conveyors, small pumps and fans
HVAC and AHU motor control panels
General industrial power switching for lighting and heating circuits
OEM control panels and MCCs requiring compact motor contactors
Automation systems requiring frequent on/off motor operation
What’s in the Box?
1 × Chint NC8-12 AC Contactor (coil voltage as ordered)
Built-in auxiliary contacts (1NO + 1NC)
Product label with ratings and terminal identification
Basic manufacturer information/wiring reference (as supplied by brand)
FAQ
Q1. What is the current rating of the NC8-12 contactor?
A1. The NC8-12 has a rated operational current of 12A in AC-3 at 415V, suitable for small and medium motor loads.
Q2. How many poles and auxiliary contacts does it have?
A2. Standard NC8-12 variants are 3-pole contactors with 1 NO + 1 NC auxiliary contacts, and 4-pole versions are also available in the series.
Q3. Which coil voltages are available?
A3. The NC8-12 series supports multiple AC/DC coil voltages, such as 24V, 48V, 110V, 230V, and 380V, depending on the specific model.
Q4. Can I use NC8-12 with a thermal overload relay?
A4. Yes, it is compatible with Chint NR2 thermal overload relays, allowing you to build complete motor starters with overload protection.
Q5. Is it suitable for frequent motor starting?
A5. Yes. The NC8 series is specifically engineered for frequent switching in motor control and industrial applications.
Q6. Does the contactor comply with IEC standards?
A6. The NC8-12 is designed to comply with IEC/EN 60947-4-1 low-voltage switchgear standards.