Signalling Equipment

Automatic Power Control Magnet

Automatic Power Control Magnets are used to instruct an electric locomotive to open the circuit breaker on its transformer, so it does not draw current as the pantograph traverses a neutral section, to eliminate arcing.

Automatic Power Control Magnet product overview

A second magnet tells it to switch back on again afterwards. It is mounted on the end of a sleeper to align with the trainborne sensor.

Using a simple spacer, the magnetic properties can be checked with either a standard Strength & Polarity meter or a Gauss meter.

Benefits of the Automatic Power Control Magnet

Cost-saving

Typical cost savings of £3,000 to £4,000 per location

Quick and easy

Quick and easy installation in 2-3 minutes

Low maintenance

Minimal maintenance required – does not degrade over time, regardless of temperature, operating cycles or shock

Safer

Low profile reduces risk of being struck

Efficient

Does not need to be removed for tamping operations

Technical features of the Automatic Power Control Magnet

Magnetic field

A highly stable magnetic field is created through the use of rare-earth magnets

Attachments

The APC magnets attach to one sleeper only, irrespective of fastener type

Compatible

Compatible with any standard concrete or timber sleepers

Lightweight

Lightweight assembly

Versatile

Can be installed into switch and crossing sites

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Automatic Power Control Magnet