Description
LS Electric Metasol – MC-500a/4
4-pole contactor rated ≈500 A per pole; used where neutral switching or an extra pole is required; typical SKUs include wide coil bands and 2a2b auxiliaries.
The Polar Energy Assessment:
When you need neutral isolation at the 500 A scale, this is the practical option. Expect bigger dimensions and heavier mounting hardware than the 3-pole version; ratings and accessory compatibility remain aligned with the MC-500a family.
Pros
- Neutral switching at 500 A, required by some circuits and codes.
- Same wide-band coil options and auxiliaries as MC-500a.
Limitations
- Increased size, weight and panel planning vs 3P.
- IP20; enclosure recommended for industrial dirty/wet sites.
- Verify exact PN for terminal style and aux config before ordering.
Typical use cases
- 3-phase + neutral feeders requiring isolation at 500 A switching.
- Large transfer panels and distribution switchgear where 4P simplifies wiring.

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