LC1F Contactor, 115A~3150A, 3Pole / 4Pole, AC Coil / DC Coil
Application
LC1-F series AC contactors are applicable to the circuits up to the rated voltage 1000V AC 50Hz or 60Hz, rated current up to 800A, for long distance breaking circuit and frequently starting or control the motor. It also can be used for the control of distribution circuits of rated current from 115A to 3150A.
| Weight | 2 kg |
|---|---|
| Dimensions | 25 × 25 × 25 cm |
| Rated Current (AC-3) |
115A, 150A, 185A, 225A, 265A, 330A, 400A, 500A, 630A, 800A |
| Coil Voltage |
AC 24V, AC 36V, AC 110V, AC 220V, AC 380V |
| Poles |
3P |
Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for LC1-F Magnetic Contactor.
Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.
AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.
Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.
Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.
Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.
Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.
