Product Overview
The NCH8-M Modular AC Contactor combines automatic control with manual operation, featuring AUTO, ON, and OFF modes. This versatile contactor is ideal for lighting, heating, ventilation, and automation systems in residential, commercial, and small industrial environments.
Main Features
- Dual Operation Modes: Automatic control with manual override capability
- Three Position Switch: AUTO, ON, and OFF modes for flexible control
- Silent Operation: Ideal for offices, hospitals, and residential spaces
- Modular Design: DIN rail or screw mounting for easy installation
- Wide Current Range: Available in 16A, 20A, 25A, 40A, and 63A models
- High Power Capacity: Supports loads up to 11 kW
- Versatile Applications: Suitable for lighting, heating, ventilation systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Current | 16A, 20A, 25A, 40A, 63A |
| Rated Voltage | AC 230V, 400V |
| Power Capacity | Up to 11 kW |
| Operation Modes | AUTO, ON, OFF |
| Mounting | 35mm DIN rail or screw fixing |
| Installation | Modular panels or distribution boards |
Technical and Application Notes
The NCH8-M contactor is designed for switching and control of lighting systems, heating equipment, ventilation systems, and small motors. Its silent operation makes it particularly suitable for noise-sensitive environments such as hospitals, libraries, and residential buildings.
The manual operation feature allows maintenance personnel to override automatic controls when needed, providing flexibility for testing and system commissioning.
Typical Applications
- Lighting control systems
- Heating and HVAC systems
- Ventilation and air conditioning
- Industrial automation
- Residential electrical panels
- Commercial building management
Ordering Support
When ordering NCH8-M modular contactors, please specify:
- Rated current (16A, 20A, 25A, 40A, or 63A)
- Rated voltage (230V or 400V)
- Control voltage for coil
- Mounting preference (DIN rail or screw)
- Any auxiliary contact requirements
Product Catalog
For detailed specifications and technical data, please refer to the product catalog below.


