2CSM222461R1000 ABB AD1NO-R-15m Mechanical Daily Time Switch 1NO 230 V AC

Why Choose the ABB AD1NO-R-15m Mechanical Time Switch?

The ABB AD1NO-R-15m is an analogue electromechanical 24-hour daily time switch designed for automatic control of electrical loads according to a repeating daily programme. Its compact single-module format and straightforward mechanical programming make it suitable for lighting, heating, ventilation, irrigation and other scheduled electrical equipment.

The AD1NO-R-15m uses a 96-pin programming dial with a minimum switching interval of 15 minutes. It provides one normally open (1NO) switching contact and a three-position manual selector for permanently OFF, automatic and permanently ON operation, allowing convenient override of the programmed schedule.

Operating from a 230 V AC, 50/60 Hz supply, the timer provides a 16(4) A at 250 V AC switching capacity. An integrated rechargeable NiMH battery provides a 100-hour running reserve, helping the unit retain timekeeping during temporary mains supply interruptions.

Key Advantages

• Simple electromechanical 24-hour daily programming.
• 15-minute minimum switching interval for flexible load scheduling.
• 96-pin programming dial for straightforward analogue configuration.
• 100-hour running reserve maintains timekeeping during temporary power failures.
• Single normally open (1NO) contact for direct scheduled switching.
• 16(4) A at 250 V AC switching capability.
• Compact 1 DIN module enclosure conserves distribution-board space.

Key Features

• ABB AD1NO-R-15m analogue daily time switch.
• Daily 24-hour programme.
• Single switching channel.
• 1 normally open (1NO) contact.
• 230 V AC, 50/60 Hz supply.
• 16 A resistive / 4 A inductive load capacity.
• 15-minute minimum switching interval.
• ±5-minute switching accuracy.
• 100-hour running reserve.
• Rechargeable, non-removable NiMH backup battery.
• Permanent OFF / automatic / permanent ON manual selector.
• IP20 protection rating.

Reliable Daily Automatic Load Control

The ABB AD1NO-R-15m provides automatic switching according to a repeating 24-hour schedule without requiring digital menus or external programming equipment. Its mechanical dial divides each day into 96 programmable 15-minute intervals, making it straightforward to configure recurring operating periods for connected electrical equipment.

The integrated 100-hour running reserve helps maintain timekeeping during mains supply interruptions, while the three-position manual selector allows the connected load to remain permanently disconnected, follow the programmed schedule or remain permanently connected. Its single-module DIN-rail construction also makes efficient use of space inside modular distribution boards.

Typical Applications

• Residential and commercial lighting control.
• Shop and commercial-building lighting schedules.
• Heating and ventilation systems.
• Automatic irrigation systems.
• Building-services load scheduling.
• Daily control of pumps, signs and other electrical equipment.