Installing the Sub-Feed Circuit Breaker Mounting Pan onto an NQ Panelboard

DANGER
hazard of electric shock, explosion, or arc flash Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, or NOM-029-STPS. 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. 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.

DANGER

hazard of electric shock, explosion, or arc flash

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, or NOM-029-STPS.
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.
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.

Install the circuit breaker mounting pan onto the load end of the panelboard, using four 10-32 x 5/16-in. self-tapping screws.
Attach the two deadfront support brackets to the alignment slots on the circuit breaker mounting pan (top of the brackets pointing to the panelboard) using the remaining 10-32 x 5/16-in. self-tapping screws supplied in the kit.

Attach the hard bus circuit breaker connectors loosely to the panelboard bus using the six 1/4-20 x 7/8-in. self-tapping screws supplied in the kit. Do not tighten the screws until .

NOTE: Example shown is for three-phase applications. For a single-phase panelboard the B-phase bus connector assembly is not required and should be discarded.

NOTE: Phase connector order is C, B and A for bottom incoming, and A, B and C for top. incoming

DANGER
hazard of electric shock, explosion, or arc flash Install circuit breaker phase insulator appropriately to separate live parts. Failure to follow these instructions will result in death or serious injury.

Place the circuit breaker phase insulator on top of the circuit breaker mounting pan, center the holes from the insulator to the holes next to the hard bus circuit breaker connectors of the mounting pan. Ensure that the phase insulator fins are placed between the hard bus circuit breaker connectors.
For bottom feed panelboard applications remove only the bottom lug cover and terminal shield installed on the circuit breaker. For top feed panelboard applications remove only the top lug cover and terminal shield installed on the circuit breaker.

NOTE: Orient the PowerPacT L-Frame circuit breaker with the “ON” end towards the top of the panelboard.
Remove the lugs (if installed) from the same end where the lug cover and terminal shield were removed from previous step, discard the lug assembly. For more information follow PowerPacT L-Frame Electronic Trip Circuit Breaker Installation (document number S1A78233).
Install the new terminal shield using three terminal shield screws, supplied in the kit. Peel off the backing of the terminal shield danger labels and install.

Install the PowerPacT L-Frame circuit breaker onto the mounting pan with the “ON” end positioned towards the top of the panelboard, using 10-32 x 3 1/2-in. self-tapping screws supplied in the kit.

NOTE: Discard the screws supplied with the PowerPacT L-Frame circuit breaker.

NOTICE
Hazard of equipment damage Do not overtighten screws. Failure to follow these instructions can result in equipment damage.

Install the hard bus circuit breaker connectors onto the circuit breaker using three M10 x 25 mm screws supplied in this kit. Ensure phase insulator fins are positioned between the hard bus circuit breaker connectors and aligned with the grooves in the circuit breaker.

Tighten the M10 x 25 mm screws to 442 lb-in (50 N•m).
Tighten the six 1/4-20 x 7/8-in. screw to 60–65 lb-in (6.8–7.3 N•m) from .
Install the lug cover, supplied in the kit, onto the circuit breaker.