Intermatic
Intermatic T174 24 hr electromechanical timer 208-277V 40A DPST
A 24-hour electromechanical timer with DPST contacts rated 40 A at 208 to 277 V AC, steel NEMA 1 enclosure, and 12 on/off cycles per day
- 24-hour scheduling with up to 12 on/off cycles daily
- 40 A DPST contacts switch 2 hp at 120 V or 5 hp at 240 V
- Operates on 208–277 V AC for commercial power systems
- Steel NEMA 1 enclosure with gray enamel finish resists indoor wear
- Includes 2 trippers; extra trippers available as 11Z965
Intermatic T174 24-Hour Timer
The Intermatic T174 is a 24-hour electromechanical timer rated for 208 to 277V AC and 40 A. It uses a DPST contact form with two poles and provides up to 12 on/off cycles per day. The steel enclosure carries a NEMA 1 rating and a gray enamel finish. It is suited for controlling lighting, pumps or HVAC loads in commercial and industrial settings.
Fit for fixed 24-hour schedules
Installers who need a simple daily repeat cycle with a minimum one-hour setting and a maximum 23-hour setting will find this timer adequate. The unit includes two trippers and accepts extra trippers for additional switching points. It is not for applications that require seven-day programming, skip-day logic, astronomic adjustment or remote communication.
Sustained operation at rated load
The DPST contacts are rated for 2 hp at 120V and 5 hp at 240V, allowing continuous switching of motor loads within those limits. The electromechanical mechanism advances once per hour and holds its position without external power. The steel enclosure protects the mechanism in indoor environments while dissipating heat during prolonged duty cycles.
Highlights
- 24-hour scheduling with up to 12 on/off cycles daily
- 40 A DPST contacts switch 2 hp at 120 V or 5 hp at 240 V
- Operates on 208–277 V AC for commercial power systems
- Steel NEMA 1 enclosure with gray enamel finish resists indoor wear
- Includes 2 trippers; extra trippers available as 11Z965
Specifications
| Brand | INTERMATIC |
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Questions about this item
Does this timer require a 208-277V AC circuit and a compatible steel enclosure for installation?
Yes, it operates on 208 to 277V AC, draws up to 40A, and mounts inside its own gray enamel steel enclosure rated NEMA 1.
Can I run my existing 240V 5 hp motor loads through this DPST contactor?
The contacts are rated for 5 hp at 240V and 2 hp at 120V, so a 240V motor up to 5 hp is within the timer's switching capacity.
How do I verify the 24-hour dial is switching my load on and off at the set times?
With the 12 on/off cycles per day, watch the load activate and deactivate at the tripper positions you set between the 1-hour minimum and 23-hour maximum settings.
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