Intermatic
Intermatic FD30MC 30-Min Spring-Wound Timer Ivory 120/277V AC
Spring-wound timer runs up to 30 minutes at 120/277V AC with 1 hp at 120V and 2 hp at 240V
- 30-minute spring-wound operation needs no external power
- Handles 1 hp at 120 V for motor loads
- Handles 2 hp at 240 V for heavier circuits
- Single-gang design fits standard electrical boxes
- Ivory finish blends with common wall plates
Spring-Wound Timer for Motor Control
The Intermatic FD30MC is a spring-wound timer designed for electrical motor-starting applications. It operates on 120 or 277 volts AC and provides a maximum timing interval of 30 minutes. The unit is rated for 1 horsepower at 120 volts and 2 horsepower at 240 volts, making it suitable for single-gang motor control in commercial or industrial settings.
Mechanical Operation Without External Power
The spring-wound mechanism eliminates the need for a control-voltage supply or battery backup. Installers mount the single-gang timer directly in a standard enclosure and set the desired run time by rotating the dial. Because the timer stores energy mechanically, it continues to function during power fluctuations and requires no separate transformer or electronic circuitry to maintain timing accuracy.
Fixed 30-Minute Maximum and Single-Circuit Design
The timer cannot exceed a 30-minute cycle, so processes requiring longer delays need a different timing device. Only one load circuit is switched, preventing control of multiple independent motors from a single unit. The 120/277 volt AC rating limits use to compatible supply voltages, and the horsepower ratings restrict the motor size that can be started directly without an additional contactor.
Highlights
- 30-minute spring-wound operation needs no external power
- Handles 1 hp at 120 V for motor loads
- Handles 2 hp at 240 V for heavier circuits
- Single-gang design fits standard electrical boxes
- Ivory finish blends with common wall plates
Specifications
| Brand | INTERMATIC |
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Questions about this item
How often will the spring mechanism need rewinding or replacement?
The spring-wound timer runs for up to 30 minutes per wind; the mechanism is designed for repeated cycles without a scheduled replacement interval.
What is the maximum motor load the contacts can handle continuously?
The timer is rated 1 hp at 120 V AC and 2 hp at 240 V AC, so the contact rating is the first limit under sustained motor loads.
Does the timer generate noticeable heat or hum when left running all day?
The mechanical spring-wound movement produces no electrical hum and negligible heat during its 30-minute cycle.
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