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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Symcom / Littelfuse |
| Manufacturer Product Number | ACBC-120 |
| Description | Controller Accessory; Alarm Ctrl/Charger; 120 VAC; Socketable |
| Datasheet | Download Datasheet |
The Littelfuse SymCom ACBC-120 is an alarm controller and battery charger (pump control panels). On loss of 120 VAC it switches to a 12 VDC lead-acid backup battery and drives a 12 VDC strobe and / or horn (horn 2 s on / 2 s off, with horn silence); with 120 VAC present it charges the battery. Test button or external alarm contact; low-battery, no-battery and reverse-polarity detection.
Battery: 12 V lead-acid rechargeable. Charging: 100 mA fast charge (±10%); 14 mA maintenance (±50%). Low-battery alert: 10.5 V. Alarm outputs: Strobe 12 VDC at 1 A max; horn 12 VDC at 1 A max. Status: LED (status and alarm).
Power: 120 VAC ±10%, 50/60 Hz. Consumption: 2.4 W max (fast charge); 0.4 W typical. Mounting: Socketable. Terminals: Plug In. Socket: 12 pin rectangular (SD12-PC, 600 V; required for the UL rating). Socket supplied: Not included. Dimensions: 44.45 x 60.325 x 104.775 mm (1.75 x 2.375 x 4.125 in), H x W x D with socket. It operates from -40 to +60 °C. Approvals: UL 508 (SD12-PC socket required).
| Category | |
| Manufacturer | Symcom / Littelfuse |
| Accessory Type | Alarm controller and battery charger (pump control panels) |
| Function | On loss of 120 VAC it switches to a 12 VDC lead-acid backup battery and drives a 12 VDC strobe and / or horn (horn 2 s on / 2 s off, with horn silence); with 120 VAC present it charges the battery. Test button or external alarm contact; low-battery, |
| Battery Type | 12 V lead-acid rechargeable |
| Charge Current | 100 mA fast charge (±10%); 14 mA maintenance (±50%) |
| Low Battery Alert | 10.5 V |
| Alarm Outputs | Strobe 12 VDC at 1 A max; horn 12 VDC at 1 A max |
| Input Voltage | 120 VAC ±10%, 50/60 Hz |
| Rated Power | 2.4 W max (fast charge); 0.4 W typical |
| Status Indicator | LED (status and alarm) |
| Mounting Type | Socketable |
| Termination Style | Plug In |
| Socket Family | 12 pin rectangular (SD12-PC, 600 V; required for the UL rating) |
| Supplied Socket | Not included |
| Dimensions | 44.45 x 60.325 x 104.775 mm (1.75 x 2.375 x 4.125 in), H x W x D with socket |
| Operating Temperature (Storage) (°C) | -40...+60 |
| Approvals | UL 508 (SD12-PC socket required) |