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V. Cooper
Reviewed in the United States on March 24, 2025
I used this magnetic motor starter (model LC1-D09 + overload relay) to run a 240V single-phase, 2 HP motor, and while the components themselves are solid, the lack of documentation made setup unnecessarily frustrating. The only guidance included was a vague schematic inside the enclosure, and the unit came pre-wired for 3-phase — not plug-and-play for single-phase applications.After a lot of trial and error (and a bit of electrical detective work), I got it working properly. So if you’re using this for single-phase 240V, here’s what you need to know to save yourself time:⸻🔧 How to Re-Wire for Single-Phase 240V Operation:1. Motor Wiring: • Use only terminals L1 and L2 for incoming power (from your 240V plug or breaker). • Use T1 and T2 to go to the motor. • If your motor has dual-voltage windings (115/230V), wire it for high voltage (230V) per the diagram on its nameplate.⸻2. Coil Control Wiring (the part that was tricky):The contactor coil will not engage unless you rewire the control circuit, which was pre-configured for a 3-phase setup. Here’s how to rewire it for 240V single-phase: • Wire a jumper from terminal L1 to terminal 13 (NO auxiliary contact input). • The built-in START button bridges terminal 13 to terminal 14 momentarily when pressed. • Terminal 14 must be wired to A1 (coil hot side). • A2 (coil return) should go to terminal 96 (NC contact on overload relay). • Terminal 95 should connect to L2, completing the return leg of the control circuit.When wired this way: • Pressing START energizes the coil via 13→14→A1. • The auxiliary contact closes to latch the circuit. • The overload relay provides proper protection and shuts everything down if needed.⸻✅ After this setup, the START button works as expected, and the contactor stays latched until the STOP breaker is pressed or power is removed.⸻🛠️ What Could Be Improved: • Including a simple printed instruction sheet would have made this a 5-star experience. • As-is, you need to know how to read schematics and have a multimeter handy to reverse-engineer the control logic.⸻If you’re comfortable with wiring and understand motor starters, it’s a great value. But beginners should proceed with caution and confirm everything with a meter before powering up.Hope this saves someone else hours of head-scratching!
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