Battery Charger(Auto Linear 30A) | GM022 for sale from Gammatron

Battery Charger(Auto Linear 30A) | GM022

Supplier: Gammatron

Battery Charger(Auto Linear 30A) | GM022

The GM022 Battery Charger is a compact unit designed for internal switchboard mounting.

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The charging characteristic is initially a constant current which automatically tapers off to a very low level of trickle current as the battery voltage rises towards the charger float voltage output. The float voltage and maximum current output levels are easily preset by controls on the unit.

A boost condition can be introduced which causes the full constant current to flow (irrespective of battery voltage). A boost timer is incorporated which resets the charger to normal automatic float charging irrespective of the position of the boost switch, after four hours.

Battery undervoltage and overvoltage are monitored and individual relays are energized and LED lamps are illuminated when the battery voltage exceeds the preset limit. Isolated change over relay contacts are provided for both alarms. A low voltage delay timer can be set to 150 seconds to prevent nuisance low voltage alarms during engine cranking. The Power Fail relay is energised with power applied.

NOTE: Charger output must be turned off when batteries are disconnected.

Specifications:

Input supply:	mains 240V 50Hz (other voltages and frequency available)
Output voltage:	12 or 24VDC (specify on order)
Output current:	30A maximum continuous
Operational temperature range:	0 - 60 C ambient
Relay contacts:	10A resistive, High volts, Low Volts, Power Fail
Control potentiometer 1:	Set float voltage (factory preset)
Control potentiometer 2:	Set maximum current (factory preset)
Control potentiometer 3:	Set low output voltage - battery charger fail (factory preset)
Control potentiometer 4:	Set high output voltage (factory preset)

To contact Gammatron about Battery Charger(Auto Linear 30A) | GM022 use Get a quote.

Specifications:

Input supply:	mains 240V 50Hz (other voltages and frequency available)
Output voltage:	12 or 24VDC (specify on order)
Output current:	30A maximum continuous
Operational temperature range:	0 - 60 C ambient
Relay contacts:	10A resistive, High volts, Low Volts, Power Fail
Control potentiometer 1:	Set float voltage (factory preset)
Control potentiometer 2:	Set maximum current (factory preset)
Control potentiometer 3:	Set low output voltage - battery charger fail (factory preset)
Control potentiometer 4:	Set high output voltage (factory preset)

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To contact Gammatron about Battery Charger(Auto Linear 30A) | GM022 use Get a quote.

AI Overview BETA

The GM022 battery charger charges batteries, with controls for setting float voltage and maximum current output on the unit. A timed boost mode resets the charger to automatic float charging after four hours, whatever position the boost switch is in. Separate undervoltage and overvoltage relays, with LED indicators, signal when battery voltage crosses its preset limits.

Low-voltage alarm delay can be set to 150 seconds
12 or 24 VDC output; specify the voltage when ordering
30A maximum continuous output current
240V, 50Hz mains input; other voltages and frequencies available
10A resistive isolated changeover contacts for high-voltage, low-voltage and power-fail alarms

Source: listing by Gammatron on IndustrySearch · Updated 2 Nov 2026

AI Overview is generated by artificial intelligence and may contain mistakes.

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