Schneider Electric QO120PAF Combination AFCI Circuit Breaker Instructions

Instruction
Bulletin
(Pigtail and Plug-on Neutral)

QO120PAF Combination AFCI Circuit Breaker

Retain for future use.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462 or local equivalent.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Circuit breaker must only be supplied by grounded neutral electrical systems.
• Replace all devices, doors and covers before turning on power to this equipment.

Failure to follow these instructions will result in death or serious injury.

NOTE:

• This product does not meet the requirements for Class A ground-fault circuit protection.
• The pigtail version of this circuit breaker is for use in all NQ panelboards and QO™ load centers, except all versions of QO2, QO2-4 and QO3-5. All QO6-12 and QO8-16 versions require use of #3 AWG (25 mm²) max. line conductors.
• This arc fault detection device is not designed or intended for use on circuits in which the neutral conductor is shared with other circuits. The circuit breaker will nuisance trip in “shared neutral” circuits.
• QO plug-on neutral arc fault circuit breaker may only be used in plug-on neutral load centers.

Installation

See Figure 1

1. Turn off all power supplying this equipment before working on or inside equipment.

2. Turn off circuit breaker (A).

3. Remove panel trim.
   NOTE: If using plug-on neutral AF (QO1XXPAF), go to step 5.

4. Connect panel neutral (pigtail wire B; applies to pigtail version only) to load center or panelboard neutral bar. See load center or panelboard for torque value.

5. Strip insulation off wires to length (C) shown.

6. Connect load power (D) and load neutral (E). See Figure 1 or side of circuit breaker for torque value.
   NOTE: The load neutral wire (E) and panel neutral (pigtail wire B; applies to pigtail version only) must be connected according to the preceding instructions for proper functioning of the arc fault detection device. If plug-on neutral AF is installed, circuit breaker neutral connector must be mounted on load center neutral bar for proper functioning of arc fault detection device. See Figure 1A.

7. Install circuit breaker into panel and re-torque wire connectors. For bolt-on circuit breakers, tighten screw (F).

8. Re-install panel trim and attach supplied label (G) to panel so that it is visible with panel trim installed.

NOTE: When using QO Neutral Kit (QONK1, 2, 3, or 4) in a QO enclosure, do not install the AF circuit breaker in space adjacent to the installed neutral kit. When installed, the neutral kits may interfere with the proper installation of these circuit breakers.

Testing

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Test each circuit breaker monthly. If circuit breaker handle does not move to the center (tripped) position, turn circuit breaker off and contact a qualified electrician.
Failure to follow these instructions will result in death or serious injury.

WARNING

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Inspect circuit breaker to ensure tamper evident labels (Fig. 1 H) are in place and do not show signs of tampering. Do not install circuit breaker if label is broken or missing.
Failure to follow these instructions can result in death or serious injury.

NOTICE

HAZARD OF EQUIPMENT DAMAGE
Megger, high-voltage or hi-pot tests will damage circuit breaker. Turn off all power supplying the equipment and isolate circuit breaker before testing.
Failure to follow these instructions can result in equipment damage.

See Figure 2

1. Test circuit breaker after installation following procedure below. Test monthly thereafter.

2. Turn off all loads downstream of circuit breaker.

3. Turn on power to load center or panelboard.

4. Turn circuit breaker handle (A) to ON.

5. Press test button (B). If the circuit breaker handle does not move to the center (tripped) position (C), turn circuit breaker off and contact a qualified electrician.
   NOTE: For qualified electricians only. Press test button (B). If the circuit breaker handle (C) does not move to the center (tripped) position, remove the load wires and repeat steps 2-5. If the circuit breaker handle (C) still does not move to the center (tripped) position, recheck circuit breaker wiring and installation. Replace the circuit breaker if no other issues found. If the circuit breaker DOES trip after removing the load wires, do not remove circuit breaker and troubleshoot branch circuit.

6. Reset circuit breaker by moving handle fully to OFF position and then moving to ON position.

7. Turn loads downstream of circuit breaker back on.

Circuit Breaker Testing

Troubleshooting

Fault Indication – LED Notification
On power up, the LED will indicate the cause of the previous electronic trip condition. (Without pressing the “TEST” button).

Re-initiate – LED Notification
If a trip code is stored, the LED blink pattern can be re-initiated without tripping the circuit breaker

1. With the circuit breaker in the “ON” position
2. Quickly press and release the “TEST” button.
3. LED light pulse will re-initiate.

NOTE: If a trip code is stored, the test button may be momentarily pressed and then released once rapidly to re-initiate the LED blink pattern without tripping the circuit breaker.

LED Pulse Pattern Definition

Fault Indication – Time Saver Diagnostics
The AF circuit breaker provides continuous fault protection. Should a fault occur during the indication procedure, the AF circuit breaker will interrupt the fault and protect the circuit.

1. Place circuit breaker in OFF position.
2. Firmly press and continue holding white ‘TEST’ button through Step 4.
3. Move handle to ON position.
4. Circuit breaker should trip at one of the following times.

short circuit

Removal

1. Turn OFF the circuit breaker. Remove the wires.
   Trips at 10.0 seconds Out of memory
   To reset Fault Indication:
   • Perform the Fault Indication Procedure a total of 6 times.
   • Verify by performing Fault Indication Procedure with a trip at 5.0 seconds (Procedure Complete) result.
   An automatic reset of Fault Indication will occur if the AF circuit breaker has been powered continuously for 27 days.

2. To disconnect the plug-on jaw from the connector and mounting rail, lift the line-end (1) of the circuit breaker until the circuit breaker jaw disconnects from the bus bar. Continue lifting until the load-end (2) disengages from the mounting rail. See Figure 4A.

3. If circuit breaker is not replaced, install a QOFP filler plate (not provided) to fill opening in panel.

NOTE: Do not use a twisting motion to remove the circuit breaker, or equipment damage may result. See Figure 4B.

Circuit Breaker Testing

NOTE: For additional troubleshooting information, please visit our website at www.schneiderelectric.com or call our Product Support Team at 1-888-SquareD (1-888-778-2733).

Federal Communications Commission Radio Frequency Interference Statement
This circuit breaker has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This circuit breaker generates, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this circuit breaker does cause harmful interference to radio or television reception, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the circuit breaker and receiver.
• Connect the receiver into an outlet on a circuit different from that to which the circuit breaker is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Do not make changes or modifications to the device which are not expressly approved by Square D. Any changes or modifications may result in the loss of authority to operate the equipment.

Electrical equipment must be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.

Schneider Electric USA, Inc.
800 Federal Street
Andover, MA 01810 USA
888-778-2733
www.schneider-electric.us

© 2020-2023 Schneider Electric All Rights Reserved

GDE27607
Rev. 04, 02/2023

References

• Electric | The Largest Consumer Energy & Renewables Platform
• Schneider Electric Canada | Global Specialist in Energy Management and Automation
• Schneider Electric Mexico | Servicios de Renovación y Retrofit de Schneider Electric

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