- Field selectable 120 or 277 VAC input
- Sealed external Momentary test switch and AC status indicator
- Constant voltage solid state charging circuit
- Line-latch prevents unnecessary discharge of battery during installation, loads will not illuminate until after application of utility power
- Low voltage cut-off prevents battery damage and ensures positive charge acceptance following an extended discharge
- Brownout sensing assures emergency operation during periods of low line voltage
- Damp location environmentally coated circuitry
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