MC-22a/4

Description

LS Electric Metasol – MC-22a/4

Compact 4-pole contactor rated 22 A (AC-3) intended for small motor and control loads where a switched neutral/4-pole layout is needed.

The Polar Energy Assessment:

MC-22a/4 is the sensible small-frame 4-pole option, minimal footprint increase over 3P but gives neutral switching or specific wiring flexibility. Ideal for small appliances, light motors, changeover panels and compact automation racks.

Pros

• 22 A AC-3 rating, fits small motors (up to ~10 kW range depending on voltage).
• Commonly sold in AC240V 4P SKUs — easy to source.
• DIN-rail/panel mounting and Metasol accessory compatibility.

Limitations

• 4-pole form slightly larger than 3P MC-22a check enclosure space.
• IP20; enclosure recommended for industrial dirty/wet sites.
• Auxiliary expansion may be required for complex control.

Typical use cases

• Reversing/interlock circuits and small motor starters needing neutral switching.
• Small HVAC zones, lighting panels, and changeover panels.
• OEM automation with compact 4-pole wiring requirements.