Haydon 16-Way 20A CCTV Power Supply Unit for Higher-Draw Camera Systems

The 20A rating is the defining specification that distinguishes this PSU from the Haydon 10A variant (HAY-PSUMULTI-10A): the 20A output provides double the current capacity at the same 16-way output configuration. This additional headroom is required for CCTV installations where the camera selection or system design results in a total camera current draw that exceeds the 10A supply’s capacity.

Situations requiring the 20A specification include: large-scale or commercial camera installations where each camera’s power draw is higher than the smallest analogue dome cameras, systems with motorised varifocal cameras whose lens motors draw additional current during zoom adjustment, and camera installations in exposed external positions where cameras with built-in heating elements to prevent fogging in cold UK weather conditions draw additional current when the heating operates.

As with the 10A variant, each of the 16 outputs is individually fused to protect the PSU and the other connected cameras from a fault on any single camera power run.

For a 16-camera installation where individual camera draws average 500mA, the total draw is 8A, which fits within the 10A PSU. Where individual cameras average 700mA to 1A or above, the 20A PSU provides the current margin needed to ensure the power supply operates within its rated capacity.

For CCTV installers specifying power distribution for higher-draw 16-camera systems across London and the UK, the HAY-PSU1612-20A provides the 20A capacity needed for cameras that exceed the standard 10A PSU specification.

Key Features

• 20A output: double the capacity of the 10A variant for higher-draw cameras
• 16 individually fused outputs for up to 16 camera power runs
• Correct specification for motorised varifocal, heated, and high-IR cameras
• Provides current headroom where total camera load exceeds 10A
• Central 12V DC distribution from single head-end PSU location
• For standard analogue cameras at typical draw, see 10A variant