For more info email:
Product Details (This product is current)
GM012 - Dual Speed Switch
  Friday, October 8, 2010
  Wednesday, December 30, 2015

Product Ref No: 127
Order No/Series: GM012

Pricing: $112.00 per unit
This is indicative only. Call for current pricing.

get more info
Once Added, Products will be added to the list at the top of the website.
Click the email icon to submit your request(s).

Products by this Supplier
  » DIN Rail Power Supplies 
  » GM 032 (Battery Monitor) 
  » GM010 - SCO Speed Switch 
  » GM012 - Dual Speed Switch 
  » GM013 - Battery Charger 
  » GM014 - Battery Charger 
  » GM016 - Repeat Start Timer 
  » GM022 - Battery Charger 
  » GM023 - Battery Charger 
  » GM205 - Battery Charger 
  » Open Frame Power Supplies 
  » Transformer Module (GM 180) 
  » View all above...
GM012 - Dual Speed Switch

The GM-012 DUAL SPEED SWITCH is a low cost printed circuit board (PCB) assembly for use as a starter motor cutout sensor and over speed switch on diesel prime movers. The engine speed is determined by measuring the output frequency from a magnetic pickup mounted adjacent to the engine ring gear. With rising motor speed the starter cutout relay will operate at a set point. Should the engine go into over speed an internal self-locking relay can only be released by interrupting the supply to the PCB.

NOTE: The GM012 is one of a range of low cost PCB assemblies designed for OEMs to assemble their own control cubicles for use with automatic standby diesel generator sets and fire pumps etc.

OPTION : The over speed switch can be non latching (specify when ordering).


Supply voltage:

12 or 24V DC (specify when ordering).
Signal source: Magnetic pickup sensing ring gear rotation. May be paralleled with governor.
Speed settings: Screwdriver adjusted potentiometers - factory preset if number of ring gear teeth and speed settings are defined (factory presets — 1000Hz, 3000Hz).
Repeatability: 2%
Relay contacts: Two functions - starter cut out and over speed, each has a single C/O contact 8A resistance loading, 4A inductive.
Ambient temp: 0-60C
Weight: -  

Dimensions: -



Fibre glass PCB, clear varnish protection.

PRICE: $112.00
request info

It's 4:00 AM in South Australia.
Please contact us via email.
The GM023 AUTOMATIC BATTERY CHARGER is a compact unit designed for internal switchboard mounting. The charging characteristic .....
Switchmode Power Supplies offer high power output in small packages, combined with easy to mount open style .....
The DE 011 is a single phase voltage sensing alarm with built in time delays. The time .....
The GM-012 DUAL SPEED SWITCH is a low cost printed circuit board (PCB) assembly for use as .....