LOW POWER GROUND FAULT INTERRUPTER

DESCRIPTION

The UTC GV4145-Q is a low power controller for AC outlet

ground fault interrupters. These devices detect hazardous grounding

conditions, such as equipment (connected to opposite phases of the

AC line) in contact with a pool of water and open circuits the line

before a harmful or lethal shock occurs.

Contained internally are a 26V zener shunt regulator, an opamp,

and an SCR driver. With the addition of two sense transformers, a

bridge rectifier, an SCR, a relay, and a few additional components,

the UTC GV4145-Q will detect and protect against both hot wire to

ground and neutral wire to ground faults. Ease of application and

long-term reliability.

FEATURES

* No potentiomenter required

* Direct interface to SCR

* Supply voltage derived from AC line-26V shunt

* Adjustable sensitivity

* Grounded neutral fault detection

* 450μA quiescent current

* I deal for 120V or 220V systems