Auto Drain Valve 720 Countdown Digital Timer DIN43650A Connecting Plug

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Auto Drain Valve 720 Countdown Digital Timer DIN43650A Connecting Plug



These full featured, high quality electronic timers are designed to control solenoid valves. They are ideal for: autodrain valves, sampling valves, lubrication systems and air dryers. They mount directly on solenoid valves with DIN 43650A Form A connectors. Both models have LED indicators to indicate valve status.


Supply Voltage: 24 to 240 Vac/dc (50 to 60 Hz)
Current Consumption: 4 mA max
Operating Temperature: -20 to 52°C (-4 to 125°F)
Environmental Protection: NEMA 4 (IP65)
Switch Holding Voltage: 400 V
Inrush Current: 10 Amps for 10 msec
Duty Cycle: 100%
Switch Life: 300 million operations
Manual Override: Test
Repeat Accuracy: ±1%
Timing Temp. Coefficient: ±0.005%/°C

ON Time: 0.5 to 10 sec
OFF Time: 30 sec to 45 min


Detailed parameter and specifications of solenoid valve timer:

Part No. 720
Part Type 720
Width 42.5mm
Height 73.0mm

31.0mm including electrical termination plug height

Supply voltage

24 to 240v AC/DC 50/60HZ marked CE

Color Black
Electrical Termination DIN43650A
Insulation Class H
Application Example air compressor electron timer auto drain solenoid valve


720 solenoid valve timer overall dimensions:


Advantages of our pneumatic solenoid valve coil and solenoid valve timer:

1, Our coil is available in different sizes and with different electrical terminations, we have professional technicians to develop as your drawing or sample or your special demands.

2, We use heat resistant bobbin moulded with 30% glass filled thermoplastic polyester material

3, The enameled copper wire has features of class H 200 according to IEC 317-8

4, The yoke for leading magnetic field we chosen as low carbon iron

5, Encapsulation with high quality specially designed glass filled nylon

6, The use of other materials is possible upon special agreements. All coils are rated to class F and to IP65.

7, The coil is designed and constructed in accordance to EN 60204.1 and VDE 0580 and it is suitable for industrial ambient conditions.

8, For use in special ambients with high humidity, please do not hesitate to contact with us.


How we control solenoid coil and solenoid valve timer quality during production:

1, Inspect raw material of enameled copper wire and thermoplastic or thermosetting plastic by mesure and testing

2, Set up parameters on coil winding machines, then manual inspect one by one after winding

3, After welded electrial terminations then tested by testing machines one by one to ensure all coils is workable

4, After moulded with thermoplastic or thermosetting plastic will be tested 100% again, and also will select 10% by random and assembled with solenoid valve then let it work for testing life.

5, After selected out some failed pneumatic solenoid coil, we will put them with stickers and marked failed reason on paper then destroy to avoid mixed into bulk order goods.


The working shop of pneumatic solenoid valve coil and soleoid valve timer:


We also produce mpm socket DIN43650A form A for timer, with many kinds of color, black, transparent, tawny:


We also have other types of solenoid valve timers:


Application of auto drain solenoid valve for air compressor:


We higly welcome your contact with any question or your detailed requirements on solenoid coil and solenoid armature assembly and solenoid valve timer, we will response with our professional support at once.


We can produce as per your drawing or sample.




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Mr. Mr. Brandon Bao
Tel: 86-574-83879820
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Ningbo Brando Hardware Co., Ltd
5-4, No.16, Nan Zhan East Road, Ningbo, Zhejiang, China (Mainland)
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