Spring Wound Timers

Spring wound timers provide straightforward timed control for connected electrical loads. Commonly used with fans, appliances, heat lamps, lighting, and thermostats, these twist-knob controls start a selected run period and break the circuit when the cycle ends to switch the load off.

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Helpful Buying Guide

Choosing a Spring Wound Timer

Spring wound timers use a mechanical winding mechanism to provide timed switching. Compare the available timing range, switching features, hold option, and wallplate format to select a timer that fits the intended connected load and required operating period.

Visual Guide

Popular examples in this category

60-Minute Spring-Wound Twist Timer, 125-277V, SPDT, White60-Minute Spring-Wound Twist Timer, 125-277V, SPDT, WhiteWBB43430660-Minute Spring-Wound Twist Timer with Hold and Metal Wallplate60-Minute Spring-Wound Twist Timer with Hold and Metal WallplateWBB4344082-Hour Spring-Wound Twist Timer with Metal Wallplate2-Hour Spring-Wound Twist Timer with Metal WallplateWBB43435060-Minute Spring-Wound Twist Timer with Metal Wallplate60-Minute Spring-Wound Twist Timer with Metal WallplateWBB434407
Use Cases

Set a timed run period

Use a spring wound timer where a connected load should run for a selected interval and switch off automatically at the end of the cycle.

How to Choose

Match the timing range

Choose a 15-minute, 60-minute, 2-hour, or up-to-6-hour option based on the length of timed control needed.

Applications

Control common electrical loads

Representative applications include fans, appliances, heat lamps, lighting, and thermostats.

Additional Info

Consider control and installation features

Available features include twist-knob activation, automatic circuit break, SPDT contacts on select models, a hold function on one 60-minute model, and metal wallplates on select models.

15 minShortest represented cycle

For short timed operation.

60 minCommon timing option

Available in several configurations.

2 hrExtended timing option

For a longer automatic shutoff cycle.

Up to 6 hrLongest represented timing

For longer timed control periods.

Comparison Guide

Compare represented timer formats

Use timing range and listed configuration features to narrow the selection for the intended application.

Timer typeTiming rangeListed configuration features
Short-cycle twist timer15 minutesSPDT contacts and metal wallplate
Standard twist timer60 minutesMetal-wallplate, hold-function, and 125-277V white options are represented
Longer-duration twist timer2 hours or up to 6 hoursMetal wallplate; SPDT contacts are listed on the 2-hour model
Planning Guide

Plan the right fit before choosing

How spring wound timers work

Mechanical timing with automatic shutoff

Turn the knob to wind the timer and begin a timed cycle. The mechanical spring mechanism does not require electricity to operate the timer mechanism. When the selected cycle is complete, the timer opens or breaks the circuit to turn off the connected load.

  • Twist-knob control starts the timing cycle.
  • End-of-cycle operation switches the load off.
  • The timing mechanism is mechanically spring wound.
Plan for the required run time

Select the interval that fits the application

The represented timer options range from short 15-minute cycles to longer periods of up to 6 hours. A 60-minute format is available in multiple configurations, while 2-hour and 6-hour options support longer timed control periods.

  • 15-minute timing for short timed cycles.
  • 60-minute options for timed control up to one hour.
  • 2-hour and up-to-6-hour options for longer run periods.
Compare available configurations

Choose the features needed for the installation

Some timers include a metal wallplate for a finished wall-mounted format. SPDT switching is identified on select models, and one 60-minute timer adds a hold function. One 60-minute timer is identified for 125-277V operation and has a white finish.

  • Metal wallplates are included on select timer models.
  • SPDT contacts are available on select models.
  • A hold function is available on one 60-minute model.
FAQ

Common questions before buying

What does a spring wound timer control?

Representative uses include fans, appliances, heat lamps, lighting, and thermostats.

How does the timer turn a load off?

It opens or breaks the circuit when the timed cycle is complete.

What timing ranges are represented?

Represented options include 15-minute, 60-minute, 2-hour, and up-to-6-hour timing.

Do all spring wound timers include the same features?

No. Features vary by model and can include a metal wallplate, SPDT contacts, or a hold function.

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