Pulsar AWZ525 Time Relay Module

In access control and alarm installations, precise timing of relay activation is often critical. The Pulsar AWZ525 time relay module provides a reliable solution for activating a relay after a set delay, with adjustable timing from 1 second to 450 seconds. It is designed for integration into control panels, automation systems, and custom electronic projects where a compact, low-power timing function is needed.

Key specifications

• Supply voltage: 10V - 30V DC
• Current consumption: 20 mA max
• Relay: 1x SPDT, 1A @ 30V DC / 0.5A @ 50V AC
• Time adjustment: 1 s - 450 s via potentiometer
• Operating mode: Delay ON (monostable)
• Trigger input: Active low (GND) or active high (V+)
• Indicators: Power LED, relay status LED
• Protection: Reverse polarity
• Connection: Screw terminals
• Operating temperature: -10°C to +50°C
• Mounting: PCB module

Why choose it

The AWZ525 offers a simple and cost-effective way to add time-delay functionality to your system. Its wide supply voltage range and low power consumption make it suitable for battery-powered or low-voltage applications. The potentiometer allows fine adjustment of the delay time, and the LED indicators provide clear status at a glance. The robust screw terminals ensure secure connections, and the reverse polarity protection prevents accidental damage.

Ideal use cases

• Access control systems: delay door lock activation after a request
• Alarm systems: delay siren or notification after sensor trigger
• Automation: sequence start-up of multiple devices
• Custom electronics: add timing to microcontroller projects

Good to know

The module operates in monostable mode: upon trigger, the relay energizes after the set delay and remains energized as long as the trigger is present. It can be triggered by either pulling the input to ground or applying a positive voltage, offering flexibility in integration. The module is supplied as a bare PCB for integration into larger assemblies; it is not a standalone DIN-rail device. Always verify polarity before connecting power.