Intermatic 120V 16A 1-Hour Repeat Cycle Electromechanical Timer THE 121 161

Product Overview

The Intermatic THE 121 161 is a repeat-cycle electromechanical timer specified for panel, surface, DIN-rail, or flush-mounted timing control. It is intended where a 120V, 16A SPDT timer with a 1-hour schedule range (25-minute intervals) is required.

Manufacturer catalog details include category code GM, UPC 078275153813, unit weight 0.66 lb, and mounting options listed as surface or DIN rail.

Key Features

• Model THE 121 161: Intermatic repeat-cycle electromechanical timer
• Voltage: 120V; Amperage: 16A
• Schedule / interval: 1-hour range with 25-minute intervals
• Contact configuration: SPDT (single pole, double throw)
• Mounting: Surface or DIN rail compatible
• UPC: 078275153813 for purchasing and receiving

What this timer does

Direct answer: The THE 121 161 provides repeat-cycle timing control for scheduled switching of loads on a recurring interval within a one-hour range.

Use: It is designed for timed control of lighting, equipment, and other loads where an electromechanical repeat-cycle solution is appropriate.

• Repeat-cycle function with a 1-hour schedule and 25-minute interval granularity
• SPDT contact allows switching between two output paths or a single load with common/NO/NC connections

Electrical ratings and switching

Direct answer: Match this timer to 120V supply circuits and loads within its 16A rating and SPDT switching configuration.

Ensure the timer's 120V/16A ratings and SPDT contact arrangement are compatible with the circuit, load inrush characteristics, and any upstream protection.

• Voltage: 120V
• Amperage: 16A
• Switching configuration: SPDT (single pole, double throw)

Mounting and installation considerations

Direct answer: THE 121 161 is specified for surface or DIN rail mounting and can be used in panel or flush-mounted setups as required by the application.

Installation should be performed by a qualified electrician and must comply with local codes and the authority having jurisdiction.

• Mounting types listed: Surface, DIN rail
• Confirm model number, voltage, amperage, mounting style, and enclosure rating prior to installation

Typical applications

Direct answer: This timer is intended for scheduled load control tasks in commercial and facility settings.

It is appropriate for replacement projects or new installations where an electromechanical repeat-cycle timer with the listed electrical ratings meets system requirements.

• Scheduled load control
• Lighting control
• Equipment control in commercial buildings and facility maintenance
• Replacement of matching Intermatic GM-category timers

Before You Order

Confirm the model number (THE 121 161), UPC, voltage, amperage, mounting style, and switching configuration before ordering. Have a qualified electrician verify compatibility with your circuit and local code requirements.

• Verify 120V supply and that the controlled load does not exceed 16A.
• Confirm SPDT contact arrangement meets control needs (common/NO/NC).
• Confirm mounting method (surface or DIN rail) fits your enclosure or panel.
• For replacement, match Intermatic catalog details and the GM category code to existing equipment.

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Intermatic 120V 16A 1-Hour Repeat Cycle Electromechanical Timer THE 121 161. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.