Intermatic
Intermatic HB113 Mechanical Timer 120V 20A Plug-In
A mechanical plug-in timer with a 20 A rating, 120 V operation and up to 23 hours of on/off control
- Plug-in design installs in seconds without wiring
- 20 A rating handles heavy-duty appliances up to 1 hp
- Mechanical dial sets on/off cycles from 30 min to 23 hr
- cCSAus certification confirms compliance with North American safety standards
- Single 5-20R receptacle controls one device reliably
Intermatic HB113 Mechanical Timer
The Intermatic HB113 is a plug-in mechanical timer rated for 120V AC and 20A. It provides a single 5-20R receptacle for indoor use and handles resistive loads up to 500W or motor loads up to 1hp. The unit operates on a 23-hour dial with a minimum setting of 30 minutes and allows a maximum of two on/off cycles per day.
Replaces manual switching for scheduled loads
This timer upgrades basic outlet control by automating on/off cycles without digital programming. The jump is worth it when you need a simple, repeatable daily schedule for lights, pumps, or fans and prefer a mechanical dial over electronic interfaces. It supersedes the need to physically toggle devices at specific times.
Suits users needing basic daily automation
Ideal for homeowners or technicians scheduling a single indoor device on a consistent 23-hour cycle with up to two switching events. Not suited for buyers who need multiple independent schedules, shorter intervals than 30 minutes, outdoor installation, or more than one controlled receptacle. Those requiring battery backup or digital precision should look elsewhere.
Highlights
- Plug-in design installs in seconds without wiring
- 20 A rating handles heavy-duty appliances up to 1 hp
- Mechanical dial sets on/off cycles from 30 min to 23 hr
- cCSAus certification confirms compliance with North American safety standards
- Single 5-20R receptacle controls one device reliably
Specifications
| Brand | INTERMATIC |
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Questions about this item
Does the 3-inch cube body and 5-20R receptacle require a dedicated outlet or can it share a standard duplex receptacle?
The plug-in timer occupies one full 5-20R outlet; its 3-inch depth clears the second socket on a standard duplex receptacle so both remain usable.
What is the correct sequence to set the mechanical dial for a single daily on/off cycle without skipping the 30-minute minimum?
Push all tripper pins inward, pull out only the ON pin at the desired start hour and the OFF pin at the desired stop hour; each pin represents a 30-minute step.
Which parts wear out first on a 20-amp mechanical timer and how often should they be checked?
The spring-driven motor and switch contacts handle the 1-hp inductive load; inspect the dial gear and contacts annually for carbon buildup or stripped teeth.
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