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Intermatic

Intermatic Spring-Wound Timer Switch 12 Hr Hold Feature White

SKU CH-320S-ANRV7

A spring-wound timer switch with a 12-hour range, hold feature, and 20 A at 125 VAC rating in a white single-gang housing

  • Spring-wound operation runs without external power
  • 12-hour maximum timing range covers extended cycles
  • Hold feature keeps the circuit engaged when needed
  • 20 A at 125 VAC handles heavy-duty loads
  • CSA and UL listed for code-compliant installations

Spring-Wound Timer Switch 12-Hour Range

The Intermatic spring-wound timer switch provides mechanical timing control for electrical loads without requiring external power. It is suited for residential and light-commercial installations where a simple, reliable countdown function is needed. The single-gang white faceplate fits standard wall boxes.

12-Hour Maximum Timing With Hold

The timing range runs from 0 to 12 hours and includes a hold feature that keeps the circuit closed beyond the set interval. This specification determines whether the switch can cover the required on-time for the intended application.

20 A at 125 VAC Resistive Load

The contact rating reaches 20 A at 125 VAC, 10 A at 250 VAC and 10 A at 277 VAC, with motor ratings of 1 hp at 120 V and 2 hp at 240 V. These limits define the maximum connected load the switch can handle continuously; larger motors or higher ampere loads exceed its capacity.

Highlights

  • Spring-wound operation runs without external power
  • 12-hour maximum timing range covers extended cycles
  • Hold feature keeps the circuit engaged when needed
  • 20 A at 125 VAC handles heavy-duty loads
  • CSA and UL listed for code-compliant installations

Specifications

BrandIntermatic

Questions about this item

How long can the spring-wound timer run before it needs rewinding?

The timer provides a timing range of 0 to 12 hours, so it can run for up to 12 hours on a single wind.

What electrical standard does the switch use and what current does it limit?

It is a SPST contact rated for 20 A at 125 VAC, 10 A at 250 VAC and 10 A at 277 VAC.

What size opening does the single-gang timer need for mounting?

The unit fits a standard single-gang electrical box and includes a white faceplate for a finished look.

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