SUL181h/SYN161h industrial timer switch online countdown mechanical timer switch

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Product Overview


SUL181h/SYN161h industrial timer switch online countdown mechanical timer switch


The SUL181h/SYN161h daily program analog  time switches are programmed using switching segments, it's quickly read and easy to change. The shortest switching time is 30 minutes and it can switching with continuous ON/AUTO/continuous OFF.






This timer is a kinds of module for DIN guide rail, it is easy to installation in distribute box, and its so compact size with pretty form. Its time base component is adopt synch pulse motor and it is strong anti-jamming with performance stabilization. It can setting 8 programs to control ON and OFF of electric appliance in 24 hours or setting 48 programs in one week. It can be programmed to avoid the peak of power, and it can distribute power in time limit to saving energy.






  • Analogue time switch

  • 1 channel

  • Daily program

  • Quartz controlled

  • Shortest switching time: 30 minutes

  • Fine adjustment for time setting accurate to the minute

  • Simple summer/winter time correction

  • 48 switching segments

  • Screw terminals

  • Switching preselection

  • Manual switching with continuous ON/AUTO/continuous OFF

  • Permanent ON/OFF switch

  • Switching status display

  • Operating indication

  • SUL181h

    - With power reserve (NiMH rechargeable battery)

  • SYN161h

    - Without power reserve





Technical data






TypeSUL181h SYN161h
Operating voltage 230-240 VAC / 110VAC / 24VDC / 12VDC
Frequency 50-60Hz
Number of channels1
Width 3 modules
Installation type DIN-rail
Type of connectionScrew terminals
DriveQuartz-controlled stepper motor
ProgramDaily program
Power reserve 7 days– 
Max. switching capacity at 250 V AC, cos φ = 1 16 A
Max. switching capacity at 250 V AC, cos φ = 0.64 A
Incandescent/halogen lamp load1100W
LED lamp < 2 W20W
LED lamp > 2 W180W
Shortest switching time 30 min
Programmable every30 min
Number of switching segments48
Time accuracy at 25 °C≤ ± 2 s/day(Quartz)
Type of contactChangeover contact
Switching outputPotential-free and phase-independent
Power consumption 1.5VA
Test approvalsCE
Housing and insulation materialHigh-temperature resistant, self-extinguishing thermoplastic
Type of protection IP 20
Protection class II in accordance with EN 60730-1
Ambient temperature–10 °C … +50 °C







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Q 1. What's the payment term? 

A. We accept T/T, L/C, Western Union, Cash

Q 2. What's the delivery time ? 

A. Usually it would take about 25 days for production

Q 3. What is the standard of package? 

A. Export standard package or special package according to customer requirement

Q 4. What kind of product quality your factory offer? 

A. We offer most competitive prices with best quality,  copper coil with silver contact.

Q 5. Do you accept OEM and ODM business?

A. We do,for OEM service please send us your authorization, also your quantity should large enough.

Q 6. Could you offer certificate of origin? 

A. We can prepare relative documents to foreign affairs office or other office to apply the certificate. 
Q7. What kind of certificate you have ? 
A. Our company already achieve ISO, and for products, we have CE, SEMKO,CB, BSI, GS, TUV, VDE.





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