Brochure

PowerPact H-, J-, and L-Frame Circuit Breakers

Accessories and Auxiliaries

133

02/2016

Interlocking Devices using Keylocks (Captive Keys)

Interlocking using keylocks makes it possible to interlock two or more devices that are physically

distant or that have very different characteristics, for example medium-voltage and low-voltage devices

or a PowerPact H-, J-, and L-frame circuit breaker and automatic switch.

Each device is equipped with an identical keylock and the key is captive on the closed (ON) device. A

single key is available for all devices. It is necessary to first open (OFF position) the device with the key

before the key can be withdrawn and used to close another device.

All rotary-handle PowerPact H-, J-, and L-frame circuit breakers and automatic switches can be

interlocked between each other or with any other device equipped with the same type of keylock.

For circuit breakers equipped with rotary handles or a motor operator. Interlocking with keys may be

easily implemented by equipping each of the circuit breakers, either unit-mount or drawout, with a

directly mounted rotary operating handle and a standard keylock, with only one key for the two

keylocks. This solution enables interlocking between two circuit breakers that are geographically

distant or that have significantly different characteristics.

Use:

•

A keylock adapter (one required for each circuit breaker)

•

Two identical keylocks with a single key

See Table 101 for more information.

Interlocking with Keys