The Derell DEZ-77-R-A model is part of the basic time relay family, commonly used in industrial machine environments. It is CPU-controlled and comes in a 72x72 mm panel size. Powered by AC/DC 220V, the unit features a 3-digit 7-segment display. It has 2 relay outputs. The first relay activates with power, while the second operates either with delay or flasher mode depending on the selected timing.

The device offers 2 modes of operation: DLY mode (delay on energize) and FLS mode (flasher). Designed for basic timing needs, DEZ models are extremely easy to use and quick to install.

- A basic time relay device
- Dimensions: 72x72 mm
- Power input: AC/DC 220V
- Panel cutout dimensions are available in product visuals
- 3-digit 7-segment LED display
- 2 relay outputs
- Relay 1 activates immediately with power
- Relay 2 activates with delay or toggles if flasher mode is selected
- Controlled by modern CPU technology
- Timer settings: up to 999 seconds or minutes, selectable
- Time unit and mode are configurable via program
- Countdown goes from high to low
- The device begins operation upon power ON

DLY Mode: When powered, relay 1 activates instantly, and relay 2 triggers after the programmed delay. The screen shows END when the countdown ends.

FLS Mode: With power, relay 1 activates continuously, while relay 2 toggles on and off according to set A (ON) and B (OFF) times. This mode is popular among machine operators.

If your application fits these specs, the DEZ series is one of the most affordable and robust options available.

For applications that require external triggering or a start input, consider the DEZ-44-RS-A model with a separate start input.

Note: This model activates upon power ON. If you need start/stop/pause/reset functions, check out the DGZ advanced timer relay series.

++ Dez 44 User Manual (pdf)

+ Time Relays Main Page >

+ Flexible (PLC-based) Time Relays >

+ Switchgear Materials >

+ DERELL Control Devices Main Page >

Editor's Note: This is one of the best-selling digital time relays. Easy to commission thanks to its plug-and-play design. Two operating modes – delay and flasher – cover many needs. For complex applications, consider the DGZ advanced time relays.

WARNING !!  The DERELL DEZ series must be installed ONLY by qualified professionals. Always comply with applicable laws like 2006/42/EC. Otomasyon AVM and DERELL cannot be held responsible for improper use or illegal installations. Contact support@otomasyonavm.com for further assistance.