The Revalco 1ROM1DR is a daily analogue timer that repeats the same on and off pattern every 24 hours. You set it by hand: push the pins on the dial to the left for on and to the right for off, and the contact between terminals 1 and 2 follows that pattern each day. No menus, no programming screen, nothing to relearn after a year on site.

The reserve is what makes this model worth the extra over a basic dial timer. A quartz movement with a 100 hour back up keeps the clock running through a power cut, so when supply returns the timer is still on the correct time of day. Without a reserve, every outage leaves the schedule shifted and someone has to climb to the board and reset it.

The minimum setting interval is 15 minutes, which suits lighting, pumps, signage and ventilation rather than short cycle process work. The switching contact is rated 16(4)A at 250V AC, enough to drive most single phase loads directly or a contactor coil for anything larger. It mounts on din rail inside a distribution board, with an IP20 sealable front cover so settings can be locked against tampering.

Key Features

Daily programme repeats the same on and off times every 24 hours
100 hour back up reserve keeps the time through a power cut
Quartz movement with 3 second per day precision
Pin based setting needs no programming knowledge
15 minute minimum setting interval
16(4)A 250V AC switching contact
Din rail mount with sealable front cover against tampering
Manufactured in Italy by Revalco

Technical Specifications

Specification	Detail
Class	EN60335 for correct connection only
Burden	0.5W
Auxiliary Power Supply	from 220 to 240V ± 10% – Frequency 50 Hz
Precision	±3sec/day at 22°C
Temperature	working 0°C ÷ +50°C / storage -25°C ÷ +70°C
Movement	Quartz
Back-up Time	100 h
Minimum Setting Interval	15 min
Terminal Wires	2×2,5 mm2
Protection Degree	IP20 – Sealable front cover
Switching Contact	16(4)A 250V AC
Operation	Move the pins to the right (Off) or the left (On), as per the neaded times of connection on which the contact 1-2 will be closed.
Make / Brand	Revalco
Country of Origin	Italy
Weight	0.10kg
SKU	1ROM1DR

Common Applications

Corridor and car park lighting on a fixed daily schedule, shop and signage lighting, irrigation and booster pump cycles, extract fans and ventilation, water heaters, aquarium and poultry lighting, and any load that follows the same pattern every day and must hold that pattern through a power cut.

Related Timers

Choice comes down to how the schedule repeats and how it is set. A daily analogue timer suits a fixed pattern repeated every 24 hours. If the schedule differs between weekdays and weekends, you need a weekly programme instead.

Where the switching should follow sunrise and sunset rather than fixed clock times, an astronomical timer calculates those times from the date and location automatically. The 170413 astronomical timer is a single channel din rail unit with a 10 year battery reserve, and the 172413 astronomical timer adds daily and weekly programmes with 60 memory locations. For a wall box instead of a board, the 173113 flush mount astronomical timer fits a standard flush fitting.

Browse the full daily and weekly timer range or the wider digital and analog timers category for cyclic, star delta and multifunction timers.

Why Buy From Qahraba

Qahraba supplies electrical contractors, panel builders and procurement engineers across the UAE and worldwide. Local UAE orders ship within 1 to 2 working days, or collect free from our Dubai store. Call or WhatsApp +971 52 913 9543 for availability, bulk pricing or wiring help.

FAQ,s

What does reserve mean on an analogue timer?

Reserve is the built in back up that keeps the clock running when supply is lost. This model holds for 100 hours, so after an outage the timer is still on the correct time of day instead of needing a manual reset.

How do you set the 1ROM1DR?

Move the pins on the dial. Pins pushed to the left switch the contact on, pins to the right switch it off. The pattern then repeats every 24 hours.

What is the smallest period I can set?

15 minutes. Each pin covers a 15 minute block, so this suits lighting, pumps and ventilation rather than short cycle process control.

What load can it switch?

The contact is rated 16(4)A at 250V AC. The figure in brackets is the inductive rating, so a motor or ballast load should be sized against 4A, not 16A. For anything heavier, use the timer to drive a contactor coil.

What is the difference between a daily and a weekly timer?

A daily timer repeats the same pattern every 24 hours. A weekly timer lets each day of the week carry its own schedule, which matters when weekends differ from weekdays.

Can the settings be locked?

Yes. The front cover is sealable, so once set the dial can be secured against tampering in a shared or public installation.

Daily Analogue Timer with Reserve 230 240V Din Rail 1ROM1DR