TM919A-4 Digital Programmable Timer Time Controller 16A Din Rail Mount Electronic Programmable Digital Industrial Relay Timer Switch

TM919A-4 Digital Programmable Timer

🔄 16 Independent Programming Groups · Customizable Weekly Schedules
Set up to 16 ON/OFF time slots per day, supporting various scheduling modes for Monday through Sunday (same schedule every day, weekdays, weekends, specific days, etc.), with control precise to the minute.

🔋 Built-in CR2032 Battery · Power-Off Memory
Features a built-in, replaceable CR2032 button cell battery that retains the program settings for over 60 days after a power outage, eliminating the need to reset the device after each power failure.

⚡ 16A High-Current Output · Direct Control of High-Power Loads
Relay output capacity of 16A / 250VAC allows direct control of streetlights, water pumps, air conditioners, electric heaters, and other devices, with a maximum rated load of approximately 3500W–4000W.

📟 LCD Digital Display · Status at a Glance
LCD digital display + LED operation indicator provide an intuitive view of the current time, programming status, and load on/off status; supports switching between 12-hour and 24-hour formats.

🔧 35mm DIN Rail Mounting · Compatible with Distribution Panels
Standard 35mm DIN rail clip-on design, dimensions approximately 86.5 × 36 × 68.5 mm. Installs in the same space as miniature circuit breakers, making it suitable for integration into distribution panels and control cabinets.

⏱ Countdown Function · Up to 24 Hours
Supports a countdown shut-off function, allowing for a delayed power-off of up to 24 hours, suitable for scenarios requiring “automatic shutdown after running for a set period following activation.”

Technical Specifications
Parameter: Specification
Model: TM919A-4
Operating Voltage:    12V DC / 24V DC / 110V AC / 220V AC (select by model)
Output Capacity:    16A / 250VAC (16A for resistive loads, 8A for inductive loads)
Display:    LCD digital screen
Programming Capacity: 16 ON/OFF groups per day, 15 weekly combinations
Timing Range: 1 minute to 168 hours
Timekeeping Accuracy:    ≤ 2 seconds per day (at 25°C)
Power-Off Memory:    Over 60 days (with built-in CR2032 battery)
Output Contacts:    1 NO + 1 NC (one set of changeover contacts)
Mounting Method:    35mm DIN rail
Operating Temperature:    -10°C to +50°C
Dimensions:    86.5 × 36 × 68.5 mm
Weight:    Approx. 111 g–150 g
Applications
Lighting Control: Automatic timed on/off for streetlights, garden lights, advertising sign lights, and landscape lighting

Agriculture/Horticulture: Scheduled irrigation via water pumps, supplemental lighting in greenhouses, and cyclic control of ventilation equipment

Commercial/Industrial: Scheduled start/stop of production equipment, automatic on/off of public address systems, and scheduled control of heating equipment

Home Automation: Scheduled power on/off for electric water heaters, air conditioners, aquarium lights, and charging devices

Operating Instructions (Abridged Version)
Clock Setup: Press and hold the clock icon button, then use D+ (Day of the Week), H+ (Hour), and M+ (Minute) to adjust the current time.

Programming: Press the P button to enter 1ON mode → Use D+ to select a day-of-the-week combination → Use H+/M+ to set the turn-on time → Press P to enter 1OFF mode and set the turn-off time → Repeat to set subsequent groups.

Manual/Automatic Switching: Use the MANUAL button to toggle between ON (Force On), AUTO (Run by Program), and OFF (Force Off).

Reset: Press the RESET button to clear all settings and restore factory defaults.

Package Contents
1 × TM919A-4 Timer Switch

1 × English User Manual