FEAS Accupack LDR4012 and LDR4024 buffered power supplies

FEAS Accupack LDR4012 and LDR4024 are made with charging regulators and serve to buffer 12 and 24 V systems. The Accupack LDR is designed to be connected between the line voltage and the installation in order to provide DC to the equipment. In the event of a mains power failure, the onboard sealed batteries supply the system, connected to the outlet. The supply duration depends on the load current of the consumer. The batteries can be easily replaced if necessary.

The units include a switchmode power supply in order to maintain a wide input voltage range of 85-270 VAC and 150-400 V DC. During the online operation the AC/DC converter supplies the accumulator with optimal charging voltage as well as the output load in a way that, under normal operation conditions, the batteries are always properly charged. Two built-in relays allow remote monitoring of the current status of the LDR.

The output voltage follows the battery voltage level. In any kind of operation, normal or emergency, the full load can be drawn from LDR4012 and LDR4024 and peak current can exceed the nominal current by up to 50% for a limited period. The output is short-circuit proof and protected against polarity failure.