APD-300

APD-300 – Product Description

• The APD-300 is a Three Window Annunciator from EAPL designed for multi-point alarm monitoring.

• Provides visual LED indications and an audible alarm for up to three independent faults or abnormal conditions.

• Compact, DIN-rail mountable design, ideal for use in control and protection panels.

• Allows operators to quickly identify fault locations, improving response time and system safety.

Key Specifications

• Function: Three-window annunciator with audio-visual alarm.

• Supply Voltage: Universal input range 90 V to 270 V AC/DC.

• Alarm Indications:

  • Three separate LED windows for three different faults.

  • Audible alarm (buzzer/hooter) for active fault.

• Reset Options:

  • Manual reset (front push button).

  • Remote reset (external contact).

• Output Contact: 1 Change-over (C/O) relay contact, rated 5 A at 250 VAC / 28 VDC resistive load.

• Power Consumption: ≤3 VA.

• Enclosure: Modular, compact DIN-rail/panel mount design.

• Terminals: Screw-type with clear terminal markings.

• Environmental Ratings:

  • Operating temperature: –10 °C to +55 °C.

  • Storage temperature: –25 °C to +80 °C.

  • Humidity: Up to 85–95% RH at 40 °C.

• Service Life: Long mechanical and electrical life with rugged design.

• Dimensions: Approx. 35 mm (W) × 90 mm (H) × 63 mm (D).

Applications

• Control & Relay panels (C&R) for system fault annunciation.

• Motor Control Centers (MCCs) for multiple motor protection alarms.

• DG sets and transformer panels to monitor multiple fault points.

• Industrial process plants for equipment trip, failure, or warning signals.

• Automation systems needing multi-point alarm indication.

• Building and utility systems requiring three-point monitoring with alarm signaling.

Summary

• The APD-300 is a robust three-window annunciator supporting three independent alarms.

• Provides clear LED fault indication and an audible alarm, ensuring quick fault recognition.

• Universal input supply and compact DIN-rail design make it versatile for panel integration.

• Includes manual and remote reset with relay output for external signaling/control.

• Ideal for MCCs, C&R panels, DG/transformer panels, and process automation where multi-point fault monitoring is required.