NOTE: This offer is now obsolete. This information is for maintenance of existing units only.

LE1GBK Starters
An overload must first be fitted beneath the contactor. It will require a K series overload ( part numbers LR2K03**)

Wiring

The 3 incoming phases are wired directly to the top terminals of the contactor: L1, L2 and L3
The Motor is connected to terminals T1, T2 and T3 on the overload

The Schneider LE1GBK series starters incorporate the K series contactors and overloads. A key design factor with this series is the "pre-wired" connection system. The overload has five pins instead of the usual 3, the two right hand pins giving direct connection to terminals 14 (NO aux contact) and A2 (coil) on the contactor without the need for external wiring.

This reduces assembly and wiring times considerably but occasionally creates confusion for installers who were not expecting this configuration

The remainder of the control wiring is already performed except for a loose lead from the Start button which needs to be connected to terminal 95 of the overload.

95 and 96 are the two connections for the normally closed contact of the overload. Conventionally, 95 would be wire connected to terminal 14 of the contactor, 96 would be wire connected to A2. The "Start" button wire would also be connected to 14, but due to the internal wiring of the overload none of this is necessary other than the start button wire to 95.

Diagrams for both 240VAC coil and 415VAC coil versions are attached, together with a schematic of the internal connections of the overload.

LE2GBK Starters

Because it is a reversing starter, the contactors in the LE2GBK series starter have Normally Closed (NC) aux contacts for electrical interlocking.

Note - If the overload is fitted as supplied with 5 pins a short circuit will be created between the incoming control voltage on terminal 96 and the coil common on A2. This makes it necessary to remove the 2 right hand pins, and to facilitate this they are specially weakened in the appropriate place so that when bent backwards with a pair of pliers they will snap off in the right place. The overload can then be fitted to the bottom of the left hand contactor.

Wiring

The incoming 3 phases will be connected to terminals L1, L2 and L3 of the left hand contactor unless there is a built in isolator, in which case the phases will be connected to the incoming terminals of the isolator.

If 240V AC control has been chosen then an incoming neutral is also required, this should be connected to the neutral block provided in the 240V AC versions.

The motor cabling is connected to terminals T1, T2 and T3 of the overload.

The two loose red wires will be connected to terminals 95 and 96 of the overload.

All other wiring is factory fitted and should not be altered.

Released for: Schneider Electric UK