Best 100 Amp Lighting Contactor for HVAC and Electrical Loads
This guide highlights the top 100 Amp lighting contactors suitable for home and industrial use, focusing on 120V and 240V coil versions that support lighting and motor loads. Each product is evaluated for DIN rail compatibility, load ratings, and practical installation considerations. The selections cover both normally open (NO) and normally closed (NC) configurations to fit a range of control schemes, from lighting automation to HVAC equipment switching. Readers can compare coil voltages, pole counts, and mounting options to choose a reliable, code-compliant device.
| Product | Key Specs |
|---|---|
| Shopcorp 4 Pole Contactor (NO) 120V | 100A, 4P, AC-1/AC-3, 120V coil, DIN rail compatible |
| Heschen HSR1-100 2P NC Contactor | 100A, 2NC, 220V coil, 2P, DIN rail |
| Hofwgele HCH8s-100 2P NO | 100A, 2P, 110V coil, DIN rail |
| Shopcorp 4 Pole Contactor NC 100A | 100A, 4P, 24/120/220/277V, DIN rail, NC |
| Hofwgele HCH8s-100 4NC 100A | 100A, 4NC, 110V coil, 4P, DIN rail |
| Shopcorp 4 Pole Contactor NO 100A (NO) | 100A, 4P, 110/120V coil, DIN rail |
Shopcorp 4 Pole Contactor NO 120V Coil

The Shopcorp 4 Pole contactor with a 120V coil provides 100A capacity across four poles, designed for lighting and motor switching. It supports 35mm DIN rails and includes a power status indicator for quick diagnostics. This model aligns with IEC/EN standards, ensuring reliable installation in both residential and commercial HVAC systems. Applications include resistive lighting loads, heating elements, and motor-driven devices, with an AC-1/AC-3 compatibility range. The contactor handles voltages up to 277V AC, and its slim DIN-rail format simplifies panel mounting in tight spaces.
Coil voltage is AC 110/120V with a 60Hz rating. The device handles inductive/motor loads up to 60A and resistive/incandescent loads up to 100A, making it suitable for a wide array of lighting circuits and compact industrial controls. Lug terminals support substantial conductor sizes, and the unit is built to operate quietly with minimal hum, ideal for office or lab environments where noise reduction matters.
Heschen HSR1-100 Household Contactor, 2 Pole NC

The Heschen HSR1-100 is a 2-pole, normally closed (NC) household contactor rated at 100A with a 220V coil. It is designed for simple on/off control of lighting and other HVAC-related devices. While NC configuration means the contacts are closed in the de-energized state, this can be advantageous in certain safety or fail-safe control schemes. The unit supports standard DIN rail mounting and is compatible with common AC control circuits, delivering dependable switching for residential and light commercial loads.
Hofwgele HCH8s-100 2P Contactor, 100A

The Hofwgele HCH8s-100 offers a 2-pole, 100A contactor with a 110V coil rating and 230V line compatibility. It supports 50/60 Hz operation and uses a DIN rail mount for convenient panel integration. With Ui rated at 500V and Ue suitable for a broad range of HVAC and lighting applications, this model is suitable for controlling medium-to-large lighting circuits or HVAC devices in both home and small commercial settings. The design emphasizes robust contact ratings and stable performance under load fluctuations.
Shopcorp 4 Pole NO 100A, 240V Coil

This Shopcorp model features a 240V coil and a 100A rating across four poles, designed for both lighting and switching tasks in HVAC and industrial settings. It is compatible with 35mm DIN rails and includes a power status indicator for quick status checks. The device supports AC-7a applications, making it suitable for resistive loads like lighting and heaters. It operates across 50/60Hz, with broad compatibility for various loads and conductor sizes through its lug terminals.
The inclusion of aluminum DIN rail and stainless screws in some variants enhances longevity and installation ease. This NO configuration is beneficial for control schemes where a de-energized state should disconnect the circuit, aligning with common safety practices in equipment cabinets and commercial panels.
Shopcorp NO 4 Pole 100A with DIN Rail Kit

This final Shopcorp listing combines a 120V coil with four poles and a 100A rating, optimized for HVAC and lighting applications. It includes an aluminum DIN rail and related mounting hardware for quick, turnkey installation. The unit emphasizes IEC/EN compliance and a slim form factor, which supports tight panel layouts. The contactor supports loads up to 100A for resistive lighting and up to 60A for motor loads, with a design focus on reliable switching and minimal audible hum during operation.
Buying Guide: Key Considerations for 100A Lighting Contactors
- Coil voltage and control circuit compatibility: Choose a contactor with a coil voltage that matches your control system (120V, 230V, etc.).
- Contact configuration: NO vs NC affects fail-safe behavior. Use NO for standard on-demand operation and NC for safety-critical fail-safe circuits where de-energized state means disconnected.
- Pole count and load type: For lighting, resistive loads dominate; for motors, inductive loads require higher inrush handling. Ensure the rating aligns with both lamp loads and motor starts as needed.
- DIN rail mounting and enclosure space: Slim models save panel space; verify DIN rail compatibility (35mm standard) and enclosure height.
- Voltage range and frequency: Confirm compatibility with your supply (50/60 Hz) and applicable voltage ranges (AC 110/120V or 240V, etc.).
- Isolation and safety features: Look for indicators, status LEDs, and robust insulation ratings to simplify maintenance and reduce risk.
- Standards and approvals: IEC/EN compatibility ensures broad interoperability and compliance with electrical codes.
- Accessory options: Some units include DIN rails and mounting hardware; others may require separate accessories for full installation.