5-6. Ground Fault Protection

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Ground fault protection circuitry automatically shuts down the power source output if a potentially hazardous condition exists at the heating device connected to the power source (e.g. insulation has broken down on a heating blanket causing the conductor to come into contact with the workpiece or a heating coil touches the workpiece causing a short in the output circuit).

The supplied ground lead must be connected between the workpiece and power source to provide proper ground fault protection from a short in the output circuit.

1Power Source

2Receptacle

3Plug

To connect plug, align key with key- way, insert end into receptacle, and rotate plug until tight.

4Handle

5Magnet

6Workpiece

Use handle to place magnet on the workpiece.

Ref. ST-801 826-C / Ref. 801 828-C

OM-184 227 Page 13

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Image 17
Miller Electric Intellifire 250 manual Ground Fault Protection, Power Source Receptacle Plug