12V 3A Portable Access Power Supply

Dimensions: 120 × 90 × 35 mm. Material: Heavy-gauge iron body with white powder-coated finish for impact and corrosion resistance. Output specification: Regulated DC 12 volts, 3 ampere maximum — tested for continuous operation under full load. Mounting: Dedicated central hanging hole on rear surface — accepts M4 threaded inserts or standard wall anchors for vertical orientation. Delay functionality is analogue and continuously variable: turn the adjustment knob to set any delay between immediate activation and 15 seconds — ideal for synchronising with slow-closing hinges, heavy fire doors or biometric verification latency. Output contact logic (NC or NO) is configurable via clearly marked terminals — supports integration with both latching and non-latching electric locks compliant with BS EN 13637 and UK Fire Safety Order requirements. Anti-interference features include input-stage LC filtering and grounded metal enclosure — ensures consistent relay closure timing and prevents spurious unlock events in electromagnetically complex environments such as university campuses, hospitals or logistics hubs.