Product Description
LS Electric MC-32A-AC120 Metasol Contactor — 32A, 3-Pole, 120V AC Coil
The LS Electric MC-32A-AC120 is a 32A, 3-pole IEC contactor from the LS Electric Metasol series, rated for 10 HP at 230V and 20 HP at 460V three-phase (32A AC-3 / 50A AC-1). It comes factory-installed with two side-mounted auxiliary contact blocks (2 NO / 2 NC total), screw clamp terminals, and mounts on standard 35mm DIN rail or panel backplate. The coil operates on 120V AC (50/60 Hz). The MC-32A-AC120 is the recommended replacement for the obsolete LS GMC-32 series contactor. Motor protective thermal overload relays (MT-32 series) mount directly to the bottom of the contactor for complete motor starter assembly.
Quick Specifications
- Current Rating: 32A (AC-3) / 50A (AC-1)
- Poles: 3-pole (3 N.O. main contacts)
- Coil Voltage: 120V AC (50/60 Hz)
- HP Rating: 10 HP @ 230V / 20 HP @ 460V (3-phase)
- Auxiliary Contacts (included): 2 side-mounted blocks, each 1 NO / 1 NC (total: 2 NO / 2 NC)
- Terminal Type: Screw clamp, AWG 12–8 (2 conductor max)
- Mounting: 35mm DIN rail or panel screw mount
- Rated Operational Voltage (Ue): 690V AC
- Rated Insulation Voltage (Ui): 1000V
- Impulse Withstand Voltage (Uimp): 8 kV
- Max Operations (AC-3): 1,800 cycles/hour
- Mechanical Durability: 12,000,000 operations
- Electrical Durability: 2,000,000 operations
- Compatible Overload: MT-32 series (direct bottom-mount)
- Replaces: LS GMC-32 series (obsolete)
- Certifications: UL 508, CE, IEC 60947, RoHS
HP Ratings by Voltage
| Supply Voltage | HP Rating (3-Phase) | Current Rating |
|---|---|---|
| 115V AC (single-phase) | 2 HP | 24A |
| 230V AC (single-phase) | 5 HP | 28A |
| 200V AC (3-phase) | 7.5 HP | 24.2A |
| 230V AC (3-phase) | 10 HP | 28A |
| 460V AC (3-phase) | 20 HP | 27A |
| 575V AC (3-phase) | 25 HP | 27A |
MC-32A Coil Voltage Variants
| Part Number | Coil Voltage |
|---|---|
| MC-32A-AC24 | 24V AC (50/60 Hz) |
| MC-32A-AC120 (this item) | 120V AC (50/60 Hz) — Most Common |
| MC-32A-AC240 | 240V AC (50/60 Hz) |
Product Features
- Two Sets of Auxiliary Contacts Included: The MC-32A-AC120 ships standard with two side-mounted auxiliary contact blocks — one on each side — each containing 1 NO and 1 NC contact. This gives a total of 2 NO / 2 NC auxiliary contacts included at no extra cost, providing immediate control and signalling capability without additional accessories.
- Direct-Mount Overload Relay (MT-32): The LS Electric MT-32 series thermal overload relay mounts directly to the bottom of the MC-32A-AC120 for complete motor protection in a single compact assembly. The MT-32 protects against overload, phase failure, and stall conditions. Select the MT-32 current range to match your motor’s full-load amperage.
- Replaces Obsolete GMC-32: The MC-32A-AC120 is the manufacturer-recommended replacement for the now-discontinued LS Electric GMC-32 series contactor. The MC-32A is an exact electrical and dimensional replacement — existing accessories, overload relays, and auxiliary contacts from the GMC-32 installation remain compatible.
- High Durability Ratings: With 12 million mechanical operations and 2 million electrical operations rated life, the Metasol MC-32A is built for continuous industrial duty in demanding applications including pumps, fans, compressors, conveyors, and HVAC systems.
- Finger-Proof (IP20) Design: All terminals are IP20 finger-proof for safe wiring and panel installation in compliance with UL and IEC safety standards.
- Front and Side Mountable Accessories: Additional auxiliary contact blocks, surge suppressors, and timing modules can be added to the front or side of the MC-32A without rewiring. The modular Metasol accessory system allows the contactor to be configured for a wide range of control circuit requirements.
- Global Certifications: UL 508 Listed (File E108780 / E206826), CE marked, IEC 60947-4-1 compliant, and RoHS compliant for worldwide installation and environmental compliance.
- LS Electric Brand Background: LS Electric (formerly LSIS / LS Industrial Systems) is a South Korean electrical manufacturer with over 60 years of history in power and industrial automation. The Metasol MC series is LS Electric’s flagship IEC contactor line, widely used as a cost-competitive alternative to Schneider TeSys D and Eaton XTCE contactors at equivalent ratings.
Stock Item – Order before 4:00 PM EST for Same-Day Shipping.
Frequently Asked Questions
How many auxiliary contacts does the MC-32A-AC120 come with?
The MC-32A-AC120 comes standard with two side-mounted auxiliary contact blocks — one on each side — each containing 1 NO and 1 NC contact. Total included: 2 NO / 2 NC. This is the standard configuration for the MC-32A frame and is included at no extra cost. Additional auxiliary contact blocks can be added to the front or side if more signalling circuits are needed.
Is the MC-32A-AC120 a direct replacement for the GMC-32?
Yes — LS Electric designates the MC-32A as the manufacturer-recommended replacement for the obsolete GMC-32 series. The MC-32A shares the same electrical ratings, dimensional footprint, and accessory compatibility as the GMC-32. Any overload relays, auxiliary contacts, or other accessories previously used with a GMC-32 will work with the MC-32A without modification.
Which overload relay is compatible with the MC-32A-AC120?
The LS Electric MT-32 series thermal overload relay mounts directly to the bottom of the MC-32A-AC120, creating a complete integrated motor starter assembly. The MT-32 is compatible with MC-32A and MC-40A frame contactors and provides thermal overload protection for motors up to approximately 32A FLA. Select the MT-32 current range to match your motor’s nameplate full-load amperage. Call us at 1-800-222-5129 for overload selection assistance.
What is the difference between MC-32A-AC120 and MC-32A-22-AC120?
The MC-32A-22-AC120 is an alternate catalog number format used by some distributors and Metasol product documentation. The “-22” in the middle denotes the standard 2 NO / 2 NC auxiliary contact configuration that comes included with the contactor. The MC-32A-AC120 and MC-32A-22-AC120 refer to the same 32A, 120V AC coil contactor with 2 NO / 2 NC side-mounted aux contacts. If your purchase order or panel schedule references either number, this is the correct product.
How does the MC-32A-AC120 compare to the Schneider LC1D32 or Benshaw RC-32A?
All three are 32A, 3-pole IEC contactors with 120V AC coils rated for 10 HP at 230V and 20 HP at 460V three-phase. The main practical differences: the MC-32A ships with 2 NO / 2 NC aux contacts as standard (matching the Benshaw RC-32A), while the Schneider LC1D32 requires a separate LA1D add-on block. The MC-32A is generally offered at a lower price point than the Schneider equivalent. All three are IEC 60947 compliant and DIN rail mountable. Not a drop-in substitute for each other without verifying dimensional fit in existing panel cutouts.
Does the MC-32A-AC120 qualify for same-day shipping?
Yes — the MC-32A-AC120 is a stocked item at Kent Electrical Supply’s warehouse in Emmaus, PA. Orders placed before 4:00 PM EST ship the same business day. Current stock quantity is shown on this page. For bulk pricing or other coil voltage variants, call us at 1-800-222-5129 or text your RFQ to 484-425-0652.
