General Purpose Timer

Product Update (3/19/2026): The new model JSL-74B is available with more flexibility in using external switches to start the timer counting. Please refer to the JSL-74B manual for details. The older model JSL-74A is out of stock and is discontinued. 

JSL-74 is a general-purpose timer. It allows users to program a single delay, a double delay, or cycle mode for various applications. It was developed from our ASL series timers based on users' feedback, so only the most commonly used functions are included. It is also easier to set up and operate than other timers on the market. Besides a reset and pause function, a stop function is also added for interrupting the timer when needed. 

Easy to set up and operate.  Although the multifunctional ASL timer can be used for different applications, too many functions make it hard to set up and operate. It also has to compromise on the performance of some specific functions. Many customers just need a simpler timer. Based on this feedback, the new JSL-74 only offers the most commonly used timer functions. The instruction manual is easier to understand. The display is dedicated to timer use only. It is more informative and easier to read. The setting parameters are easier to remember.

More functions. In addition to the reset (start) and pause key, we have also added a stop key and a terminal. It allows the user to stop the timer at any time. The stop terminal can be connected to a safety interlock switch. It will disable the timer's output when the interlock switch is not engaged, which is a very important safety feature that many other timers do not have. In addition to the double delay cycling mode, a double delay single run feature is also added.

Note 1: The Power-On Memory (POM) function is added to the JSL-74A model. After a loss of power, the user can set this timer to either reset when power is restored or continue running from the point of the power outage. 

Note 2: JSL-74B (firmware v1.5.1) offers more flexibility in using the RST input terminal to reset/run the timer. Please refer to the details about the "RUN" parameter in the JSL-74B manual.   

Note 3: For an external start/stop compact switch for this timer, please check SW32. 

Note 4: The refurbished product is in limited stock here. 

Specifications
Timer range: 0.01 seconds to 9999 hours
Timer mode: single delay, double delay, cycle delay
Timer trigger: power on, front keypad, or remote switch
Timer accuracy: < 1 s/day.
Power supply: 90 - 260 V AC.
Power Consumption: < 2 W
Relay output: 7 A @ 240 VAC,10 A @ 120 VAC, and 24 VDC (resistive load)
Relay life: 100,000 times.
Operating temperature: 0 - 60°C.
Humidity: 0 - 95% RH
Panel cutout: 44.5 x 44.5 mm
Dimension: 48 x 48 x 85 mm