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Circuit Breakers, Switchgear, 
Motor Control, Parts & More. 
Sales - Service - Engineering

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Unit Substations

Combining our extensive knowledge of switchgear with our Maxi-Cast and related transformer capabilities, Circuit Breaker Sales NE can provide quality secondary unit substations. We can provide a completely tested system from incoming primary switch, to the transformer, down to the low voltage gear.

Our typical secondary substation is:

  • Primary - 2400 volts to 34,500 volts fused load break switch GE, Westinghouse-Cutler-Hammer-Siemens
  • Transformer - oil or dry, 34,500 volt primary down to a secondary of either 4160 volts or 480 volts
  • Secondary - 4160, 2400 or 480 V switchgear

ANSI Metal Enclosed, Group Mounted, Individually Mounted GE, Westinghouse-Cutler-Hammer, Siemens, ABB, Square D

Category

Item

Low Range

High Range

Primary Switch

Type

Fused Load Breaker

Vacuum Gear

.

.

Single Switch

Duplex-Key Locked Switch

Transformer

Insulation

Dry Type

Oil Filled

.

Rating

500kVA

10MVA

LV Switchgear

Type

Switchboard

Switchgear

.

Voltage

208 Volts

600 Volts

.

Current

400 Amps

5000 Amps

.

Interrupting Capacity

22 kAIC

200 kAIC

.

Trip Ratings

Long Time, Instantaneous (LI)

Long Time, Short Time, Instantaneous and Ground Fault (LSIG)

.

Auxiliaries

1 no/1 nc

4 no/4 nc

.

Shunt Trips (list voltage)

All ranges

All ranges

.

Undervoltages (list voltage)

All ranges

All ranges

.

Fuses (limiters)

800 Amps

4000 Amps

.

Bus Systems

800 Amps

6000 Amps

.

Drawout Systems

Fixed mounted

Drawout mounted

.

Housing

Indoor

Outdoor

 

 

 

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