Specification

ManualsBrandsSquare D ManualsElectricalHomeline 20 Amp Single-Pole Circuit Breaker

and QOB Miniature Circuit Breakers

Special Application Circuit Breakers

07/2008

QO-PL and QOB-PL Powerlink

Remotely Operated CIrcuit Breakers

QO-PL and QOB-PL circuit breakers combine overcurrent and short-circuit protection with remote

switching. These circuit breakers are ideal for lighting loads or wherever power switching is required.

These circuit breakers are designed to be used with many types of control devices, from simple push

buttons to programmable controllers and energy management systems. QO-PL and QOB-PL circuit

breakers have all of the features of standard QO circuit breakers including Visi-Trip

, plus the added

ability to be remotely switched on and off. They are rated for a minimum of 30,000 remote operations.

Remote switching is accomplished using a 24 Vdc power supply. Square D offers QOPLPS and

QOBPLPS power supplies. These power supplies mount directly in any QO load center or NQ or

NQOD panelboard just like a QO circuit breaker. They provide power to switch up to three QO-PL or

QOB-PL circuit breakers simultaneously. A minimum of two seconds recharge time must be allowed

between operation for non-simultaneous operations of circuit breakers being supplied by a power

supply.

QO Arc-Fault Circuit Interrupter Circuit Breakers

QO arc-fault circuit interrupters (AFCI) quickly detects a wide range of arc-fault conditions, recognizes

the nature and specific wave-form of an arc fault and trips the circuit breaker. Traditional circuit

breakers and fuses are designed to detect overloads and short circuits. Arc-fault circuit breakers are

designed to detect overloads, short circuits and arc faults.

An arc-fault circuit breaker opens the circuit and stops the arcing and high intensity heat before a fire is

likely to ignite. It is designed with the same quick-open and Visi-Trip

features and reliability of other

QO circuit breaker products, fits into most existing Square D load centers, and can generally be used

as a direct replacement for a standard Square D circuit breakers. The AFCI overall size is larger than

an equivalent QO circuit breaker.

Arc-fault circuit breakers:

• Have special microprocessor-based arc identification to differentiate necessary operational arcs

(associated with loads such as electric motors, switches and receptacles) from actual arc faults

which can cause damage and fires.

• Differentiate true arc faults from chopped wave-forms associated with switched-mode power

supplies on electrical appliances, computers and lamp dimmers.

QO AFCI's are available as Branch Feeder Type and Combination Type. Branch AFCI circuit breakers

provide arc-fault protection of the branch circuit wiring. Combination AFCI circuit breakers provide arc-

fault protection for the branch circuit and also provides protection of cord sets and power-supply cords.

The AFCI type required for an installation is generally governed by the installation codes which are

adopted by local inspection authorities. Consult local building codes and inspection authorities to

determine which type is required in your area.

07303097

1P QO-PL

Circuit Breaker

07303096

2P QO-PL

Circuit Breaker

07303098

QOPLPS

Power Supply

Table 4: Maximum Circuit Breakers per Power Supply

Voltage

Maximum QO-PL and QOB-PL Circuit Breakers

Recommended per QOPLPS

At ambient temperature of -25° through 40°C.

208Y/120 Vac 2

240 Vac 3

07303100

1P QO-AFI

Circuit Breaker