MC-100a

Description

LS Electric Metasol; MC-100a

Three-pole magnetic contactor in the Metasol family rated for nominal 100 A switching (AC-3 class), fitted with 2 NO + 2 NC auxiliary contacts and available with multiple coil options (typical AC coils 24/110/120/230/240/480 V; DC options exist per catalog). DIN-rail or panel mounting; lug or screw terminals depending on PN.

The Polar Energy Assessment:

MC-100a sits in the “workhorse” small-power class; big enough for legitimate plant duties (medium motors, feeders up to ~100 A), yet small enough to fit compact panels. It’s a reliable choice where a balance of current capability, accessory options (overload relay mounting, auxiliaries) and LS Metasol family support matters. Not a heavy-duty power contactor, but a robust industrial controller for many common applications.

Pros

• 100 A (AC-3) rating covers many small/medium motor starters and panel loads.
• Multiple coil voltages and terminal styles (lug/screw) make it flexible for retrofits.
• Direct-mount overload relay options and accessory support from Metasol family.

Limitations

• Not suitable for high-current mains (250 A+); choose larger AF frames for bigger motors.
• Standard protection IP20; enclosure required in dirty/wet environments.
• Check motor inrush and duty; electrical life differs with load and application.

Typical use cases

• Motor starters for small-to-medium three-phase motors (pumps, fans, conveyors).
• General panel switching of resistive/inductive loads up to 100 A.
• OEM equipment and retrofit panels requiring lug terminals or DIN-rail/screw mounting flexibility.