Main features

• High efficiency, light weight, and silent operation.
• Fully automatic 'set and forget' operation.
• Integrated ammeter.
• Operating mode as a power supply with DC backup.

Power supply and DC backup function

Samlex America's SEC-UL series industrial chargers can be used as a power supply and as a DC backup power source.

Use as a power supply:

• When the charger is used as a power supply, the load is simply connected directly to the charger on the negative terminal and one of the three positive terminals. Please note that the load consumption must not exceed the charger's capacity.

Use as a DC backup power source:

• When the charger is used as a DC backup power source, it is necessary to modify the configuration of the charger's DIP switches as follows:

• Once the DIP switch configuration has been modified, the load must be connected directly to the battery—it is recommended to use a switch between the load and the battery—with the load turned off.
• Subsequently, connect the charger to the battery; once connected, plug in the charger's power supply. The charger will begin delivering current to the battery based on its charge state, ensuring it remains charged. In the event of a power failure, the load will be powered directly by the battery, and once power returns, the charger will resume charging the battery.

Protections:

• Short circuit.
• Reverse battery polarity.
• Overcurrent.

Technical specifications:

• Input voltage: 120/220* VAC.
• Charging current: 30 A.
• Output voltage (nominal): 12 VDC.
• Dimensions: 280 x 214 x 83 mm
• Weight: 2.9 kg
• *Selectable via internal jumper.