SQUARE D HOM220 Homeline Combination Service Entrance Devices Instruction Manual

SQUARE D HOM220 Homeline Combination Service Entrance Devices

Product Information: Circuit Breaker Installation for HomelineTM

Combination Service Entrance Devices

The HomelineTM Combination Service Entrance Devices are designed to limit the installation of more overcurrent devices than was intended. The plug-on connection arrangement for the HOMT circuit breakers is different from HOM circuit breakers. The product has a double-row bus construction and tandem circuit breaker type HOMT
can only be installed in combination service entrance devices where the bus bar connector has a slot at the centerline of the desired pole space. The product comes with a lug torque data chart on a combination service entrance device wiring diagram for torque specifications and circuit breaker marking for lug torque specifications.

Product Usage Instructions: Circuit Breaker Installation for

HomelineTM Combination Service Entrance Devices

1. Ensure that you have the appropriate tool kit.
2. Remove cover twist-outs by twisting them out with pliers at the center of the twist-out for the one-pole branch circuit breaker opening.
3. Remove knockouts. Appropriate to the knockout pattern, drive center knockout inward or outward. Alternately pry up or drive in outer rings one at a time to the opening required.
4. For double-row bus construction, tandem circuit breaker type HOMT may be installed in combination service entrance devices where the bus bar connector has a slot at the centerline of the desired pole space. Do not use excessive force to install a HOMT tandem circuit breaker where no connector slot is provided as it can result in damage to the circuit breaker case.
5. For single-row bus construction, tandem circuit breaker type HOMT may only be installed in combination service entrance devices where the bus bar connector has a configuration as shown in Figure 3.
6. Tighten all electrical connections to specifications. See the lug torque data chart on the combination service entrance device wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Introduction

HomelineTM Combination Service Entrance Devices are designed to restrict the installation of more overcurrent devices than the number for which it was designed. Be advised that the plug-on connection arrangement for HOMT circuit breakers is different from HOM circuit breakers.

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 the power to this equipment.
• Failure to follow these instructions will result in death or serious injury.

Double Row Bus Construction
Tandem circuit breaker type HOMT may be installed in combination service entrance devices where the bus bar connector has a slot at the centerline of the desired pole space. See Figure 1.

HAZARD OF EQUIPMENT DAMAGE
Do not use excessive force to install a HOMT tandem circuit breaker where no connector slot is provided. See Figure 1. Failure to follow this instruction can result in damage to the circuit breaker case.

Note : Tighten all electrical connections to specifications. See the lug torque data chart on the combination service entrance device wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Single-Row Bus Construction

HAZARD OF EQUIPMENT DAMAGE
Tandem circuit breaker type HOMT may only be installed in combination service entrance devices where the bus bar connector has a configuration as in Figure 3. Failure to follow this instruction can result in equipment damage.

Note: Tighten all electrical connections to specifications. See the lug torque data chart on the combination service entrance devise wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Remove Cover Twistouts

• Remove only those twist-outs which match installed circuit breakers by twisting out with pliers at the center of the twist-out.
• Close unused circuit breaker openings with filler plates.
• Order catalog number HOMFP for filler plates. Each filler plate closes a one-pole branch circuit breaker opening.

Prepare for Installation

1. Remove knockouts. Appropriate to the knockout pattern, drive center knockout inward or outward. Alternately pry up or drive in outer rings one at a time to the opening required.
2. Select the proper cable clamp, or use other approved methods for securing the cable or conduit to the enclosure.
3. Install and wire branch circuit breakers.

CAUTION
HAZARD OF EQUIPMENT DAMAGE
Use only HomelineTM circuit breakers and replacement parts with this product. Use of other components voids the warranty, may void the UL listing, and may result in personal injury or equipment damage. Refer to device markings for specific restrictions. Failure to follow this instruction can result in personal injury or equipment damage.

Circuit Breaker Installation

1. Turn off the circuit breaker.
2. Insert the wire terminal end of the circuit breaker into a mounting hook.
3. Push the circuit breaker inward until plug-on jaws plug securely into to bus bar connector.
4. Install wires.

Identify Circuits
Identify branch circuits on directory labels or directory stickers.

Energize the Circuit
Note : Before energizing combination service entrance devices, turn the main and branch circuit breakers to the OFF position.

1. Turned on power to the combination service entrance device.
2. Turn the main circuit breaker ON.
3. Turn on branch circuit breakers. The handle at a mid position indicates the circuit breaker is tripped. To reset, move the handle to the off position and then to the on position.

Removal of Circuit Breakers

1. Turn circuit breakers OFF.
2. Remove wires.
3. Disconnect plug-on jaws from the bus bar connection by pulling the circuit breaker outward until it disengages from the mounting hook.

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