Intermatic 102 Mechanical Time Switch 208-277 Vac Spst

Product Description

The INTERMATIC 102 is a 24-hour mechanical time switch designed for indoor installations in a metal enclosure. It operates on 208-277 VAC at 60 Hz and uses a single-pole, single-throw (SPST) switching configuration. Built for heavy-duty commercial and industrial electrical control, the 102 handles loads up to 40 amps per pole and supports up to 12 ON/OFF switching operations per day. A built-in manual override switch allows technicians to bypass the timer for testing or temporary load control without removing the unit from service. Licensed electricians and electrical contractors are the primary installers of this device.

The INTERMATIC 102 is suited for controlling lighting circuits, HVAC equipment, pumps, and other motor or resistive loads in commercial, industrial, and residential settings. Its metal enclosure provides durable protection in indoor environments. The 1-hour interval scheduling resolution makes it appropriate for applications where precise daily on/off cycling is required, such as exterior lighting control, sign lighting, and equipment run-time scheduling.

Key Features

• Handles electrical loads up to 40 amps per pole
• Supports up to 12 ON/OFF operations per 24-hour period
• SPST switching configuration for single-circuit control
• Manual override switch for bypassing the timer during testing or temporary operation
• Indoor-rated metal enclosure for durable, protected installation
• Operates at 208-277 VAC, 60 Hz — compatible with common commercial voltage ranges

Compatibility

Designed as an OEM-style replacement or direct-install mechanical time switch for single-circuit lighting, HVAC, and motor load control applications requiring 208-277 VAC operation with SPST switching in an indoor metal enclosure.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Disconnect and lock out power to the circuit before wiring the time switch. Verify that the load current does not exceed the 40-amp-per-pole rating before energizing. The manual override should be tested after installation to confirm proper bypass function.

Technical Specifications

• Voltage: 208-277 VAC
• Frequency: 60 Hz
• Switch Type: SPST
• Load Capacity: 40 amps per pole
• Maximum Daily Operations: 12 ON/OFF cycles per day
• Interval Resolution: 1 hour
• Enclosure Type: Indoor metal
• UPC: 078275102217

Standard Information

• Brand: INTERMATIC
• Manufacturer Part Number: 102