MC-40a

Categories: Contactor and Overload Relay, Panel Control Brand: LS ELECTRIC

Parameter	MC-40a
Model / Series	MC-40a (Metasol small frame)
Main contacts	3 × NO (3P)
Auxiliary contacts	Typically 1 NO + 1 NC
Rated current (AC-3)	≈40 A
Coil/control voltage	Common AC coils: 120 / 230 / 240 VAC; DC options available
Rated operational voltage (Ue)	Up to 690 V
Rated insulation voltage (Ui)	~690–1000 V
Dimensions	≈69 × 83 × 93 mm (AC variant typical); DC versions slightly deeper
Mounting	DIN-rail or screw
Standards / Certifications	IEC 60947 series; UL/CE

Description
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Description

LS Electric Metasol – MC-40a

3-pole magnetic contactor rated ≈40 A (AC-3), typically supplied with 1 NO + 1 NC auxiliary (some SKUs show 2a2b) and common AC coil options (e.g., 120/230/240 VAC); DIN-rail or panel mount.

The Polar Energy Assessment:

MC-40a is the compact workhorse for small motors — compact footprint, DIN-rail friendly, and a straightforward spec for HVAC, small conveyors and pump control. Good choice when space matters but you need more than the tiniest contactors.

Pros

Compact W ≈69 mm footprint; fits dense panels.
DIN-rail and panel mounting options; screw terminals.
Standard Metasol accessory support (auxiliaries, overloads).

Limitations

Limited to small motor duties (~40 A AC-3).
IP20; enclosure recommended for industrial dirty/wet sites.

Typical use cases

HVAC motors, small pump/fan starters.
OEM control panels and compact automation racks.

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Disclaimer

Product images are for illustrative purposes only and may not exactly match the actual item. All specifications and technical details should be verified using the official catalogs and datasheets provided by the respective manufacturer, as discrepancies may exist on this website.