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Automatic Genset Control Modules

The automatic Genset control modules provide complete automatic control of standby gas or diesel generator set engines. All fuel, ignition, and alarm relay controls are via heavy-duty industrial type relay contacts eliminating the need for external control power relays.

Many different models are available depending on your needs. Scroll down to read a general description of each of our four different levels of automatic control modules. More specific features are listed by model. Select any model heading below to view / download complete model specification data sheets, operating instructions, and typical wiring diagrams.

For convenience, use our Selection Guide to assist in choosing the correct engine control for your application.

We offer many more special models (not listed here) which usually consist of the following basic control modules with specialized software and/or hardware to meet your specific needs. We welcome the opportunity to review and discuss your specific requirements.

Note: The word "Level" used in classifying our controls (i.e. Level 2) refers only to the relative level of complexity of each product family and does not directly correspond to any other specifications.

Level 2 Controls \ Level 1 Controls \ Level 0 Controls \ Remote Start/Stop

 

Level 2 Controls                    A122E \ A122D \ A122A

The Level 2 Genset Control Modules are ideal for systems involving NFPA-110 requirements, or any other application where pre-alarms or variable start/stop time delays are desired.

The Level 2 controls can also be combined with an Interface Adapter via a data-link cable to add many other desirable functions including remote serial communications (RS232 & RS485), additional I/O, battery voltage monitoring, remote annunciation, and more. Go to the Interface Adapter section for more information or contact us for your requirements.

Features common on all Level 2 controls:

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Models for both 12VDC and 24VDC systems.

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Local or Remote Control.

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Five (5) Shutdown Alarm Lights with alarm relay control.

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Two (2) Pre-Alarm Alarm Lights.

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External Lamp-Test Provisions.

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Alarm Silence Provisions.

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10-amp Crank and Fuel Solenoid Relays.

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2-amp Alarm Relay.

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Variable Time Delays for engine start-up and shutdown.

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Selectable Cranking Modes.

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Provisions to test the overspeed trip point at rated generator frequency for ease of generator set preparation.

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Pluggable terminal blocks for ease of installation and service.

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Engine speed input signal may be obtained from any source related to the engine speed.

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Loss of speed signal protection.

Additional features for Level 2 controls by model number:

A122E / A242E

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10-amp Main Circuit Breaker Shunt Trip alarm relay.

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Emergency Stop and flashing "Off-Auto" light outputs (with lamp-test) per NFPA-110.

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System Normal light output (with lamp-test).

A122D / A242D

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Emergency Stop and flashing "Off-Auto" light outputs (with lamp-test) per NFPA-110.

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System Normal light output (with lamp-test).

A122A / A242A

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Emergency Stop light output.

 

Level 1 Controls                    A121CB \ A121C \ A121B \ A121A

The Level 1 Genset controls are ideal for systems, or any other application where conventional 4 or 5-alarm shutdowns are desired.

Features common on all Level 1 controls:

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Models for both 12VDC and 24VDC systems.

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Local or Remote Control.

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External Lamp-Test Provisions.

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10-amp Crank and Fuel Solenoid Relays.

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Selectable Time Delays for engine start-up and shutdown.

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Selectable Cranking Modes.

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Engine speed input signal may be obtained from any source related to the engine speed.

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Loss of speed signal protection.

Additional features for Level 1 controls by model number:

A121C / A241C

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Pluggable terminal blocks for ease of installation and service.

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Five (5) alarm light outputs with alarm relay control.

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2-amp Alarm Relay.

A121A / A241A

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Four (4) alarm light outputs with alarm relay control.

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2-amp Alarm Relay.

A121CB / A241CB

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Pluggable terminal blocks for ease of installation and service.

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Five (5) alarm light outputs.

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2-amp Glow Control Relay (for engine pre-heat applications.)

A121B / A241B

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Four (4) alarm light outputs.

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2-amp Glow Control Relay (for engine pre-heat applications.)

 

Level 0 Controls                    A120C \ B120C \ A120A \ B120A

The Level 1 Genset controls are ideal for systems, or any other application where conventional 4 or 5-alarm shutdowns are desired.

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Models for 12VDC systems only.

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Automatic Lamp Test (no external button required.)

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Local or Remote Control.

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20-amp Crank and Fuel Solenoid Relays.

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Selectable Cranking Modes.

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Engine speed input signal obtained from 120VAC 60Hz Main Generator.

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Loss of speed signal protection.

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Optional pluggable terminal blocks for ease of installation.

Additional features for Level 0 controls by model number:

A120C

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Five (5) alarm light outputs.

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Factory selectable Time Delays for engine start-up and shutdown.

B120C

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Packaged for direct mounting to inside surface of customer control panel.

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Five (5) on-board alarm lights.

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Factory selectable Time Delays for engine start-up and shutdown.

A120A

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Four (4) alarm light outputs.

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Selectable Time Delays for engine start-up and shutdown.

B120A

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Packaged for direct mounting to inside surface of customer control panel.

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Four (4) on-board alarm lights.

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Selectable Time Delays for engine start-up and shutdown.

 

Remote Start/Stop Controls                    RSS3 \ RSS4

The Remote Start/Stop Genset Control Modules are ideal for air or water-cooled systems with a single alarm requirement.

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Models for 12VDC systems only.

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Local or Remote Control.

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Selectable Cranking Modes.

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Selectable Time Delay for engine start-up.

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Loss of speed signal protection.

Additional features for Remote Start/Stop controls by model number:

RSS4

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For use with Air-cooled or Water-cooled engines.

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Shutdown protection for: Overspeed, Overcrank, and Loss of Generator Frequency.

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Additional shutdown input for use with: High Water or High Head Temperature, Low Oil Pressure, etc.

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10-amp Crank and Fuel Solenoid Relays. (20-amp relays available.)

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Engine speed input signal obtained from 120VAC 60Hz Main Generator frequency.

RSS3

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For use with Air-cooled engines.

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Shutdown protection for: Overcrank and Loss of Generator frequency.

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20-amp Crank and Fuel Solenoid Relays.

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Engine speed input signal obtained from 120VAC 60Hz Main Generator voltage.

 

 

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Last modified: 06/19/06