At its most basic level, an inverter is an electrical component which converts DC power (for example, a battery) to AC power (which can be used by traditional appliances and lighting loads). A UL924 Listed inverter belongs to this family of devices but is a fully functional system including other components such as batteries, battery charger, utility power sensing relay, transfer switch, overcurrent protection, and metal enclosure. UL924 inverters are a popular backup source for buildings which do not already have a generator.

Central inverters have numerous advantages over battery packs. Please see the table below for more information.

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In order to properly install the CR-120 you must first determine whether you have a N/O or N/C contact (see question below). Once you have determined this, see the CR-120 installation instructions for wiring instructions.

In order to determine if your magnetic switch is N/O or N/C, you would need a continuity tester. Before installing the magnetic switch, take the magnetic switch in your hand and measure continuity between the two wire leads or terminals. If the continuity tester beeps or lights up, you have a N/C magnetic switch. If it does not, you have a N/O magnetic switch. Please note this test should be performed with the magnetic switch not hooked up to anything and not nearby the magnet.

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In the past, all emergency lights had to be on 24 hours a day to meet safety codes. Now a UL924 listed emergency power control can convert & control up to 20A of normal lighting into approved emergency lighting. When utility power is available, LVS UL924 listed emergency power controls (EPC’s) allow designated emergency lights to be switched or dimmed using the same control as regular lights in the same area. Upon loss of power, EPC’s will switch designated emergency luminaires on, at full brightness, regardless of switch or dimmer position, until utility power is restored.

The RTS-0-10V, EPC-D-F-LS, and select mini/micro inverters (25W,50W, 110W,225W) have 0-10V load shedding functionality.

Load shedding is the automatic reduction of energy consumption through disconnecting or dimming connected loads. Load shedding is desirable in circumstances where power is limited such as during a utility power interruption or during peak demand when power is more expensive.