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LOW VOLTAGE AIR CIRCUIT BREAKERS 208V – 600V
General Electric

In the 1940’s, GENERAL ELECTRIC manufactured its first line of low voltage circuit breakers and associated switchgear. The models produced were the
  - AE1A, AE1 15 model with amperage ratings to 225 amp
  - AE1B, AE1 25 model with amperage ratings to 600 amp
  - AL2 50 model with amperage ratings to 800, 1000-1200, 1600 amp
  - AL2 75 model with amperage ratings for 2000-3000 amp 
  - AL2100 model with amperage ratings from 4000 to 6000amp

These breakers were controlled by simple oil dashpot assemblies with internal “sucker disc” delay assemblies or with the AL2 75 and AL2 100 designs, 5amp coils connected to inline current transformers.

In the mid 1950’s, GENERAL ELECTRIC followed its original designs with a series of breakers called the AK1 series. This series was available in a single position drawout model

These breakers were controlled by piston dashpot mechanisms with longer time delays than the original sucker discs and having designations EC1 and EC2.
The breakers were designated
  - AK1 15 with amperage ratings to 225 amp [2 physical sizes]
  - AK1 25 with amperage ratings to 600 amp
  - AK1 50 with ratings to 1600 amp
  - AK1 75 with ratings to 3000amp
  - AK1 100 with ratings to 4000amp

In the early 1960’s, GENERAL ELECTRIC followed its original designs with a series of breakers called the AK2 series. This series was available:
In a single position drawout model complete with a stored energy closing mechanism.

These breakers were controlled by piston dashpot mechanisms with longer time delays than the original sucker discs and having designations EC1 and EC2A.
The breakers were designated
  - AK2 15 with amperage ratings to 225 amp [2 physical sizes]
  - AK2 25 with amperage ratings to 600 amp
  - AK2 50 with ratings to 1600 amp
  - AK2 75 with ratings to 3000amp
  - AK2 100 with ratings to 4000amp

In the late 1960’s, GENERAL ELECTRIC followed its original designs with a series of breakers called the AK2A series. This series was available:
In a three-position drawout model complete with a stored energy closing mechanism.

These breakers were controlled by piston dashpot mechanisms with longer time delays than the original sucker discs and having designations EC1 and EC2A and subsequently with solid-state trip devices designated POWER SENSOR.
The breakers were designated
  - AK2A 15 with amperage ratings to 225 amp [2 physical sizes]
  - AK2A 25 with amperage ratings to 600 amp
  - AK2A 50 with ratings to 1600 amp
  - AK2A 75 with ratings to 3000amp
  - AK2A 100 with ratings to 4000amp

  - AK3A 15 with amperage ratings to 225 amp [2 physical sizes]
  - AK3A 25 with amperage ratings to 600 amp
  - AK3A 50 with ratings to 1600 amp
  - AK3A 75 with ratings to 3000amp
  - AK3A 100 with ratings to 4000amp

The AK2, AK2A, AK3, AK3A lines of breakers was available with integral fusing to increase the interrupting ratings to 200,000 amps. When integral fusing was used, the nomenclature became:
AKU2 25, AKU2A 25, AKU3 25, AKU3A 25, AKU2 50, AKU2A 50, AKU3 50, AKU3A 50

In the 1980’s, GENERAL ELECTRIC developed the AKR series.  This series was protected with successive GENERAL ELECTRIC updated solid-state trip devices:
SST, ECS, RMS9, MICROVERSATRIP, MICROVERSATRIP PM, EPIC, PROTRIP. While the breakers remained basically the same, with the exception in changes in the drawout escutcheon assemblies, each time that GENERAL ELECTRIC changed its solid-state trip devices it altered a number in the device name. Ie 4, 5, 6, 8, 10.

  - AKR 2,3,4,6,8,10 A.B.S - 30 with amperage ratings to 600 amp / 800 amp
  - AKR 2,3,4,6,8,10 A,D - 30S with amperage ratings to 600 amp / 800 amp
  - AKR 2,3,4,6,8,10  A,B,S - 50 with amperage ratings to 1600 amp
  - AKRT 2,3,4,6,8,10 A,B,S  - 50 with amperage ratings to 2000 amp
  - AKR 2,3,4,6,8,10 C,F  - 75 with amperage ratings to 3000 amp
  - AKR 2,3,4,6,8,10 C,F  - 100 with amperage ratings to 4000 amp
  - AKR 2,3,4,6,8,10 C,F  - 125 with amperage ratings to 5000 amp

When utilized with integral fuses, the circuit breakers were designated

  - AKRU 2,3,4,6,8,10 A.B.S  - 30  with amperage ratings to 600 amp / 800 amp
  - AKRU 2,3,4,6,8,10 A,D - 30S  with amperage ratings to 600 amp / 800 amp
  - AKRU 2,3,4,6,8,10  A,B,S - 50  with amperage ratings to 1600 amp
  - AKRU T 2,3,4,6,8,10 A,B,S  - 50  with amperage ratings to 2000 amp

Specialized breakers were developed by GENERAL ELECTRIC, in order to attempt to provide replacements for earlier designs. In many cases, these new specialized breakers were short lived. All of these designs are available from Satin International and Satin American Corp.
These breakers are designated
AKL2- 25, AKL2 -50, AEL- 15, AKJ- 50, AKJA 2,3, 4, 5 - 50,
AKS 2, 3, 4, 5, 6, 8 - 50, AKS 2, 3, 4, 5, 6, 8 A - 50,

After 2000 GENERAL ELECTRIC developed it WAVEPRO breaker. This breaker utilized elements from the operating mechanisms of the earlier Air Circuit Breaker Designs and coupled them with characteristics of Insulated Case Breaker Technology.

Most of the Low Voltage Circuit Breakers manufactured by GENERAL ELECTRIC have been obsoleted,

All of the original Complete GENERAL ELECTRIC Circuit Breakers are available directly from the Satin International and Satin American Corp.

Replacement Parts for the majority of GENERAL ELECTRIC equipment 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 Circuit Breakers manufactured GENERAL ELECTRIC

In regards to Replacement and Renewal parts for Low Voltage Air Circuit Breakers Satin International Stocks for all generations of equipment:

  - Stationary main contacts, contact kits and contact assemblies,
  - Movable main contacts, contact kits, and each contact assembly,
  - Stationary arcing contacts, contact kits, and contact assemblies,
  - Movable arcing contacts, contact kits, and each contact assembly,
  - Arc Chutes,
  - Electrical and Manual Operating Mechanisms,
  - Closing Mechanisms, Closing Assemblies,
  - Bushing Assemblies, Pins, Castings, Supports, Barriers, Insulation,
  - Electromechanical Trip Devices, Solid State Trip Devices, Trip Units,
  - Trip Coils, 24 volts dc, 48 volts dc, 125 volts dc, 250 volts dc,
  - Trip Coils, 120 volts ac, 240 volts ac, 480 volts ac
  - Closing Coils, 24 volts dc, 48 volts dc, 125 volts dc, 250 volts dc,
  - Closing Coils, 120 volts ac, 240 volts ac, 480 volts ac
  - Undervoltage Coils and  Undervoltage Devices, 24 volts dc, 48vdc, 125vdc, 250vdc,
  - Undervoltage Coils and Undervoltage Devices, 120 volts ac, 240 volts ac, 480 volts ac,
  - Closing Relays, Anti Pump Relays,
  - Pole Assemblies and Pole Bases,
  - Secondary Disconnect Devices and Disconnect Contacts,
  - Primary Disconnect Clusters and Assemblies,
  - Dust Covers,
  - Drawout Assemblies,
  - Closing Handles, Escutcheon Plates,
  - Inter Phase Barriers,