Specification

and QOB Miniature Circuit Breakers

Special Application Circuit Breakers

07/2008

Proper Application of Qwik-Gard GFCIs

•

Do not connect to swimming pool equipment installed before adoption of the 1965 National Electric

Code

• Do not connect to electrical ranges or clothes dryers whose frames are grounded by a connection

to the grounded circuit conductor.

• Do not use as a main circuit breaker in a panelboard or in reverse connected (backfed)

applications.

• Do not megger, high-voltage or hi-pot test. Any voltage in excess of 240 Vac will damage the GFCI

electronics so that the circuit breaker will not protect against low-level ground faults.

• Must be located no more than 250 ft. (76 m) from the load being served.

• RequiresS the same mounting space as standard QO circuit breakers.

One-Pole Qwik-Gard Ground-Fault Circuit Interrupters

One-pole Qwik-Gard GFCIs must be installed on independent circuits. Circuits which have a neutral

common to more than one panel circuit conductor cannot be protected against ground faults by a one-

pole GFCI because the current returning to the source through the neutral cannot be effectively split to

prevent the Qwik-Gard GFCI from tripping under normal use.

Figure 2: Typical One-Pole Qwik-Gard GFCI Wiring

120/240 Vac Source

Hot

Duplex

Receptacle

Neutral

Equipment Ground

S/N

GND

120 V

240 V

One-pole

Circuit

Breaker

with

GFCI or EPD

120 V

07303106