Power Supplies

Power Supplies

Power Limited 24VAC Supplies

Power Limited 24VAC Supplies

The PS-3, PS-6, and PS-12 24VAC supplies utilize power limited transformers with built-in circuit breakers.  Each output can deliver 3.12A to power any of National's low voltage clock systems.  Recommended over non-power limited supplies for most installations.

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ET Power Supplies

ET Series 24VAC Supplies

These installer friendly power supplies provide (2) Class II 3.12A 24VAC outputs.  Simply hang on the wall or install in a standard 19" rack and plug it into a wall outlet.  Input terminals allow power supply to function as a remote (booster) supply by connecting to an existing clock circuit.  LEDs indicate the circuit activation as well as output health.  Built-in circuit breakers provide easy reset for overcurrent situations.

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Non-Power Limited 24VAC Supplies

Non-Power Limited 24VAC Supplies

These 24VAC supplies will power any of National's low voltage AC clocks.  These supplies are not power limited so may require conduit installation.  Refer to local electrical codes.

PS-20: 500VA, 120VAC/24VAC Power Supply.
PS-40: 1000VA, 120VAC/24VAC Power Supply.

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24VDC Power Supplies

24VDC Power Supplies

These power supplies are for powering Rotary Drive Impulse clocks or legacy 24VDC clock circuits.  Remote booster versions available.

PSD-10: 24VDC, 7.5A Power Supply.
PSD-10R: 24VDC, 7.5A Remote Power Supply.

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