Comnet 12VDC 33WATT 275A DIN RAIL HIGH - PS-AMR3-12

Comnet PS-AMR3-12 12VDC DIN Rail Power Supply

Overview

The PS-AMR3-12 is a 33-watt, 12VDC power supply built for DIN rail mounting in surveillance and access control cabinets. It converts universal AC input (90–264VAC) to regulated 12VDC at 2.75A — enough to feed multiple cameras, readers, or door locks in a single rack without requiring individual wall-mount transformers. The compact form factor and DIN rail interface make it standard for distributed security installations where cabinet space is tight and you need clean, stable DC power to operate field devices.

Compatibility

The PS-AMR3-12 outputs 12VDC at up to 2.75A and is compatible with any surveillance or access control device rated for 12VDC input, including analog security cameras, IP cameras with 12VDC PoE injectors, turret lights, door strikers, magnetic locks, and motion detector modules. Confirm the total current draw of all connected devices does not exceed 2.75A to prevent brownout or shutdown. Common installations pair this supply with multiple analog dome or bullet cameras (typically 100–250mA each) or a single high-current device such as a 12V heater or blower module.

Installation Notes

Operating temperature range is –40 to +71°C, suitable for unheated or lightly cooled outdoor equipment cabinets and indoor server racks. Efficiency is 89%, so account for 0.37W of heat dissipation per watt of output under full load. The supply carries CE, cUL, and UL certifications. Verify input voltage is within the 90–264VAC window before commissioning; the supply is not rated for DC input or three-phase power. Always install a circuit breaker or fused disconnect upstream of the supply to meet local electrical code requirements.