BCH8 Contactor

Meet the CDADA BCH8 Contactor—a compact, modular, and ultra-quiet solution, offered by reliable manufacturer, CDADA. Also known as a “household” or “construction contactor,” the BCH8 is engineered for remote switching of resistive and low-inductive loads such as lighting circuits, water heaters, geothermal systems, roller shutters, and small household motors.

Rated up to 125A (AC-1) and 50A (AC-3) at 400V, it operates reliably in ambient temperatures from –5°C to +60°C and mounts directly on standard TH35 DIN rails—perfect for integration alongside MCBs in distribution boards. With IP40 protection when installed, no operational noise, and a clear status indicator window, the BCH8 is ideal for hotels, hospitals, offices, shopping malls, and smart residential buildings.

Compliant with IEC 61095, IEC 60947-4-1, GB17885, and GB/T 14048.4, it supports SELV/ELSV control voltages (12–240V AC/DC) and offers 1 million mechanical cycles and 100,000 electrical operations—delivering durability without compromising on quietness or aesthetics.

Key Specifications

Special Features:

★ Silent operation (ideal for hospitals/hotels)

★ Status indicator window

★ Manual override option (on select models)

★ Spacers for heat dissipation in dense panels

Technical Data Sheet

Why Choose CDADA BCH8 Contactor?

★ Designed for Smart Buildings

Perfect for lighting control, HVAC zoning, and automated shutters in commercial/residential projects.

★ Truly Silent Operation

No humming or buzzing—critical for hospitals, hotels, libraries, and apartments.

★ Modular & Space-Saving

Standard 9mm multiples fit seamlessly beside MCBs—no extra brackets or adapters.

★ Global Safety Compliance

Meets IEC 61095 (household contactors) and IEC 60947-4-1 (industrial)—dual-certified reliability.

★ SELV Control Support

Accepts 12–48V AC/DC—ideal for PLC, BMS, or smart home systems using low-voltage control.

★ High Durability

1M mechanical cycles ensures years of maintenance-free service in high-cycle applications.

★ Connector Parameters

Typical Applications

★ Lighting Control: Stadiums, shopping malls, office corridors

★ Building Automation: Roller shutters, geothermal floor heating, water pumps

★ Public Facilities: Hospitals, airports, government service centers

★ Residential: Smart homes, apartment complexes, villa energy management

★ OEM Panels: Integrated into intelligent distribution boards

Outline Dimension

Why choose CDADA?

★ Strong customer basis

★ We own over 60 national patents, including inventions, utility models, and designs.

★ Our sales engineers can help you select the most suitable product based on your application, load, and system requirements.

★ our products have been supplied for power grid projects, industrial plants, commercial buildings, and infrastructure projects in many countries.

★ Our key advantages are:

1)Complete international certifications,

2)Strong OEM/ODM capability,

3)High cost-performance ratio,

4)Reliable large-scale production capacity, 5) Extensive export experience.

Frequently Asked Questions

Q1: Is BCH8 Contactor suitable for motor control?

A1: Yes—but only for small household motors (e.g., garage doors, small pumps). It’s rated for AC-3 up to 50A (125A model). For industrial motors, use F or D series contactors.

Q2: Why does it need spacers in the panel?

A2: BCH8 generates heat during continuous operation. Spacers (3mm/9mm) between units improve airflow and prevent overheating in densely packed distribution boxes.

Q3: Can it be controlled by a smart home system?

A3: Absolutely! With 12V/24V DC coil options, it integrates directly with KNX, BACnet, PLCs, or Raspberry Pi-based controllers.

Q4: What’s the difference between BCH8 and industrial contactors?

A4:

● BCH8: Optimized for quiet, frequent switching of lighting/resistive loads; meets IEC 61095.

● Industrial (e.g., LC1-F): Built for high-current motors, AC-4 duty, and harsh environments.

→ BCH8 = building comfort; F/D series = factory power.

Q5: Why choose CDADA BCH8 over other brands?

A5: CDADA offers:

● True modular design with standard DIN compatibility

● Dual compliance (IEC 61095 + IEC 60947-4-1)

● Low-voltage SELV coils for smart systems

● Zero-noise operation—verified in real-world tests

● Competitive pricing with full English technical support