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MEDIUM VOLTAGE AIR AND VACUUM SWITCHGEAR
2400, 4160, 7200, 13800 VOLTS
GENERAL ELECTRIC

In the 1940’s and early ‘50s, GENERAL ELECTRIC manufactured its first line of medium voltage circuit breakers and associated switchgear. The models produced were the:

  - AM 10 10
  - AM 10 15
  - AM 10 25
  - AM 5 50       600 and 1200 amp, 4160 volt
  - AM 5 150     600 and 1200 amp, 4160 volt
  - AM 5 250     1200 and 2000 amp, 4160 volt
  - AM 7.5 250 1200 and 2000 amp, 4160 volt
  - AM 7.5 500 1200 and 2000 amp, 7200 volt
  - AM 15 250 1200 and 2000 amp, 7200 volt
  - AM 15 500 1200 and 2000 amp, 14400 volt

These circuit breakers and switchgear were developed utilizing the vertical lift design. The breakers had primary drawout stabs, while the switchgear contained stationary drawout clusters in porcelain cylinders. The first switchgear required the operator to vertically lift the circuit breakers in place by means of a ratcheting tool. Subsequent to this, a large motor assembly was mounted in the rear of the switchgear cubicles to provide lifting energy for the circuit breakers,

In the mid 1950's GENERAL ELECTRIC followed its original designs with a series of breakers also called the AM series. This series was characterized initially by the continued use of a vertical lift mechanism, and a open door drawout design.  General Electric changed the rear mounted lifting motor to a front mounted reversible drill motor. Eventually the motor assembly became portable with only one motor supplied for a switchgear lineup.

The switchgear was available in an indoor lineup, outdoor non walk-in lineup and outdoor walk-in single and double aisle,

The circuit breakers of this series were designated:
  - AM 4.16 50
  - AM 4.16 75
  - AM 4.16 150
  - AM 4.16 250
  - AM 4.16 350
  - AM 7.2 250
  - AM 7.2 500
  - AM 13.8 150
  - AM 13.8 250
  - AM 13.8 500
  - AM 13.8 750
  - AM 13.8 1000

The Medium Voltage Air Circuit Breaker Switchgear manufactured by GENERAL ELECTRIC has been obsoleted.

All original Complete Switchgear assemblies are available directly from the Satin International and Satin American Corp.

Replacement Parts for the majority of all GENERAL ELECTRIC switchgear are in stock and available from Satin International.

Along with Renewal Parts, Satin International maintains an extensive library of original Instruction Books, Sales Catalogs, Blue Print Documentation, and Replacement Parts Information for all Switchgear manufactured GENERAL ELECTRIC

In regards to Replacement and Renewal parts for Medium Voltage Air Circuit Breakers Satin International Stocks all components for all generations of Medium Voltage switchgear manufactured GENERAL ELECTRIC:

  - Complete switchgear assemblies,
  - Stationary Primary Disconnect Assemblies,
  - Drawout Racking Mechanisms,
  - Doors, Insulation, Interconnecting Bus details,
  - Ground Bus details,
  - Shutter Assemblies, Bottles,
  - Bus Supports
  - Relays, Meters
  - Control Switches, Closing Switches, Ammeter Switches, Voltmeter Switches,
  - Red and Green Indicating Lights,
  - Outdoor Housings,
  - Pt compartments, CPT compartments
  - Current Transformers, CTS
  - Potential Transformers, PTS
  - Control Power Transformers, CPTS
  - Battery Chargers, Batteries