SQUARE D HOM120 Homeline Combination Service Entrance Devices Instruction Manual

SQUARE D HOM120 Homeline Combination Service Entrance Devices

Product Information

The HomelineTM Combination Service Entrance Devices is a device designed to restrict the installation of more overcurrent devices than the number for which it was designed. It comes with a double-row bus construction and single- row bus construction. The device has a plug-on connection arrangement for HOMT circuit breakers that is different from HOM circuit breakers. The device has a configuration that allows for the installation of tandem circuit breaker type HOMT where the bus bar connector has a slot at the centerline of the desired pole space.

Product Usage Instructions

Danger: To prevent death or serious injury, follow the instructions below.

Installation of Tandem Circuit Breaker Type HOMT in Double Row Bus

Construction

1. Check if the bus bar connector has a slot at the centerline of the desired pole space. See Figure 1 for reference.
2. If there is no connector slot, do not use excessive force to install a HOMT tandem circuit breaker. Doing so can result in damage to the circuit breaker case.
3. Attach the tandem circuit breaker type HOMT to the bus bar connector where there is a slot at the centerline of the desired pole space.
4. Tighten all electrical connections to specifications. See lug torque data chart on combination service entrance device wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Installation of Tandem Circuit Breaker Type HOMT in Single Row Bus

Construction

1. Check if the bus bar connector has a configuration as in Figure 3.
2. If it does not have the configuration as in Figure 3, do not install the tandem circuit breaker type HOMT. Doing so can result in equipment damage.
3. Attach the tandem circuit breaker type HOMT to the bus bar connector where it has the configuration as in Figure 3.
4. Tighten all electrical connections to specifications. See lug torque data chart on combination service entrance device wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Remove Cover Twistouts

To remove cover twistouts, twist out with pliers at the center of twistout. For the one-pole branch circuit breaker opening, see Figure 7 for reference.

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

Prepare for Installation

Remove knockouts by driving center knockout inward or outward appropriate to knockout pattern. Alternatively, pry up or drive in outer rings one at a time to the opening required.

Introduction

HomelineTM Combination Service Entrance Devices are designed to restrict the installation of more overcurrent devices than that 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 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.

NOTICE
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 lug torque data chart on combination service entrance device wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Single Row Bus Construction

NOTICE
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 lug torque data chart on combination service entrance devise wiring diagram for torque specifications. See circuit breaker marking for lug torque specifications.

Prepare for Installation

1. Remove knockouts. Appropriate to knockout pattern, drive center knockout inward or outward. Alternately pry up or drive in outer rings one at a time to 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 circuit breaker.
2. Insert wire terminal end of circuit breaker into mounting hook.
3. Push circuit breaker inward until plug-on jaws plug securely on to bus bar connector.
4. Install wires.

Identify Circuits
Identify branch circuits on directory label or directory stickers

Energize the Circuit

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

1. Turned on power to the combination service entrance device.
2. Turn main circuit breaker ON.
3. Turn on branch circuit breakers.

Handle at mid position indicates the circuit breaker is tripped. To reset, move 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 bus bar connection by pulling circuit breaker outward until it disengages from mounting hook.

Electrical equipment should 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 and Square D are trademarks owned by Schneider Electric Industries SAS or its affiliated companies. All other trademarks are the property of their respective owners.

Schneider Electric USA, Inc. 800 Federal Street Andover, MA 01810 USA 1-888-778-2733 www.schneider- electric.us

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