CLM42031 - Siemens Lighting Contactor

CLM42031 - Siemens Lighting Contactor

The CLM42031 Siemens lighting contactor is a 20 Amp, 4-pole mechanically held contactor used in commercial and industrial lighting control systems where multiple lighting circuits need to be switched together from a single control point. In real-world applications, this is the type of device you’ll see inside lighting control panels in office buildings, warehouses, schools, and large facilities where lighting is managed in zones instead of individual switches.

What makes this style of contactor practical is the way it operates. It’s mechanically held, meaning it only draws power while switching on or off — once it changes state, it stays in position mechanically. In everyday terms, that helps reduce continuous coil energy use and keeps the system focused on switching rather than constantly energized operation. It’s a simple design that fits well in lighting control setups that run day after day.

The CLM42031 uses a 110–120V AC control coil (50/60 Hz) and includes four normally open poles, allowing multiple lighting circuits to be controlled at the same time. It’s an open-style device, intended to be mounted inside a proper enclosure, with screw-type terminals for line, load, and coil wiring. That makes it straightforward for electricians working in structured lighting panels or retrofit projects.

Key Features and Benefits

• 20 Amp mechanically held lighting contactor for grouped lighting control
• 4-pole, 4 NO contact configuration for multiple circuits
• 110–120V AC coil operation (50/60 Hz)
• Mechanically held design reduces continuous energy draw
• Suitable for tungsten, ballast, and resistive lighting loads
• Rated for systems up to 600V AC
• Open-style construction for enclosure mounting
• Screw-type terminals for simple wiring connections
• Designed for commercial lighting control applications
• Common in retrofit and replacement lighting panels

Technical Specifications

• Catalog Number: CLM42031
• Product Type: Mechanically held lighting contactor
• Device Type: Lighting contactor (open style)
• Amperage Rating: 20A
• Poles: 4-pole (4 NO contacts)
• Control Voltage: 110–120V AC (50/60 Hz)
• Operating Voltage: Up to 600V AC
• Mounting Method: Panel/enclosure mounted
• Connection Type: Screw terminals
• Conductor Range: 18–10 AWG Cu
• Short-Circuit Rating: 5 kA
• Dimensions: approx. 8.25"W x 10.75"H x 4.06"D
• Weight: approx. 2.05 lb

Material Compliance and Certifications

The CLM42031 Siemens lighting contactor is designed in accordance with UL 508, NEMA ICS 2, and CSA 22.2 No. 14 standards for industrial control equipment. It is intended for use in properly enclosed electrical systems and should be installed by qualified electrical personnel following applicable codes and manufacturer guidelines.

Where It Works Best

• Commercial lighting control systems
• Office buildings and retail environments
• Warehouses and industrial facilities
• Schools and campus lighting systems
• Zoned lighting control applications
• Energy management lighting panels
• Retrofit and replacement control systems
• Multi-circuit lighting switching setups