Product Overview

The Intermatic T103M Mechanical Time Switch Mechanism is a heavy-duty 24-hour timer mechanism designed for reliable scheduled control of compatible electrical loads. This replacement mechanism operates at 125V / 120 VAC, 60 Hz and features a DPST double-pole single-throw switching configuration for controlling a single load.

Built for commercial, industrial, residential, pool, spa, lighting, and equipment control applications, the T103M provides dependable mechanical scheduling with up to 12 ON/OFF operations per day. It is designed as a mechanism-only replacement and can be installed in most compatible Intermatic timer enclosures.

Ideal For

This mechanism is ideal for electricians, pool service technicians, maintenance professionals, and homeowners replacing a worn or failed Intermatic T103M timer mechanism. It is commonly used when the existing enclosure is still in good condition but the internal timer mechanism needs replacement.

Key Features

24-Hour Mechanical Timer Mechanism

Provides dependable daily scheduling for compatible equipment. The 24-hour mechanical dial allows users to set automatic ON/OFF times for pumps, lighting, motors, and other supported loads.

125V / 120 VAC Operation

Designed for 125V / 120 VAC, 60 Hz applications. This makes it suitable for compatible systems that require a 120V mechanical timer mechanism.

DPST Switching Configuration

The double-pole single-throw design allows the timer to switch two conductors at the same time for one controlled load. This configuration is commonly used in equipment control applications requiring DPST operation.

Up to 12 ON/OFF Operations Per Day

Allows up to 12 scheduled ON/OFF cycles each day. One ON tripper and one OFF tripper are typically included for basic daily scheduling.

Mechanism-Only Replacement

This model includes the timer mechanism only and does not include a full enclosure. It is intended for replacement inside a compatible Intermatic timer box or control panel.

Heavy-Duty Intermatic Construction

Built for long-lasting performance in demanding residential, commercial, and industrial applications. Intermatic T100 Series mechanisms are widely used for pool equipment, lighting, pumps, motors, and general electrical control.

Benefits

Replacing the mechanism only can restore timer operation without replacing the entire enclosure or control box. This makes the T103M a practical repair option when the timer motor, contacts, or mechanical dial are no longer functioning properly.

The Intermatic T103M provides simple, dependable, mechanical control with manual override and adjustable tripper scheduling. It is a reliable choice for maintaining daily equipment operation and improving energy management.

Specifications

Customer-Facing Q&A

Q: What is the Intermatic T103M used for?
A: The T103M is a replacement mechanical timer mechanism used to control compatible electrical loads on a 24-hour schedule.

Q: Is this the full timer box or just the mechanism?
A: This is the mechanism only. It does not include the full enclosure.

Q: What voltage is the T103M?
A: The T103M is designed for 125V / 120 VAC, 60 Hz applications.

Q: What does DPST mean?
A: DPST stands for double-pole single-throw. It allows the timer to switch two conductors at the same time for one controlled load.

Q: How many ON/OFF cycles can this timer handle per day?
A: It can provide up to 12 ON/OFF operations per day when additional compatible trippers are used.

Q: Does this include ON and OFF trippers?
A: Yes. Standard product listings indicate that one ON tripper and one OFF tripper are included.

Q: Can this be used for pool equipment?
A: Yes. The T103M is commonly used for pool and spa equipment control, provided the equipment voltage and amperage requirements match the timer specifications.

Q: Should this be installed by a professional?
A: Yes. Installation should be performed by a qualified electrician or pool equipment professional because this product involves line-voltage electrical wiring.