Control and Communications Wiring

Control and communication wiring is installed and connected from the front of the switchgear. The secondary wiring design allows for circuit breaker compartment wiring without removing the circuit breaker from its compartment.

Conduit Entrances

Top Control Conduit Entrance

Bottom Control Conduit Entrances

Control Conduit Entrances

The control wiring conduit entrance is in both the top and bottom of each section for maximum flexibility.

A removable top plate (4 inch by 5 inch) can be punched easily, up to four individual 3/4 inch control conduits per section. ( Not available on Arc Resistant enclosure. All control must exit top in rear cable entry area).

Two bottom conduit entrances, in each circuit breaker compartment, permit cables to exit through the bottom of the compartment.

Horizontal Wireway

The secondary horizontal wireway (see Secondary Wiring System) is directly above each circuit breaker compartment, allowing easy access to finger-safe secondary terminals. Each secondary terminal is dedicated to a specific function, allowing standardized wiring.

The secondary disconnecting contacts are on the top front of the circuit breaker element and connect the accessories to the control power source or other control circuits. These contacts are in the connected position when the circuit breaker is in the connect and test positions.

Vertical Wireway

The vertical wireway (see Secondary Wiring System) is on the right side of the circuit breaker for quick and easy wiring installation.

Control and Communications Terminals

All accessory terminals are on a connecting block (on the top front of the circuit breaker cradle) and are accessible from the front, even with the circuit breaker in the test or disconnect position. This is particularly useful for field inspection and modification. The field-installable electrical accessories are UL Listed.

Secondary Wiring System

Standard Features

Control wires in wiring trough above the circuit breaker compartment
Secondary terminal block originates directly from the circuit breaker without the use of an intermediate terminal block for factory and customer wiring
Snap-in wire tie provisions
Cage clamp terminal blocks locked directly on the circuit breaker cradle
Control wiring AWG #14 SIS
Metering CT wiring to the shorting terminal block is #10 AWG. From the shorting block on, it becomes #12 AWG (as standard) and can be #10 AWG (as option).
Communication wiring AWG #22 shielded
Locking pull-apart terminal blocks at shipping splits
- Sleeve type “destination” wire markings
- Grommeted holes between circuit breaker compartments

Available Options

Ring tongue control wiring*

Auxiliary Instrument Compartments

Auxiliary instrument compartments come in one cell, two cell, three cell, or full height. Typical auxiliary instrument compartments contain control power transformers, control components, meters, relays, and other optional devices. Circuit monitor displays and other metering devices can be mounted on the door.

Typical Auxiliary Instrument Compartment

Auxiliary Sections

Optional, full-height, auxiliary sections with hinged front doors are available that can be bolted to feeder and main switchgear sections. In addition, auxiliary sections can be provided with through bus as needed.

Auxiliary Section

Key Locks and Padlocks

Optional key locks and padlocks can be provided for the door latches on circuit breaker compartments, auxiliary instrument compartments, auxiliary sections, and the rear doors on switchgear sections.