T7402B - Switch INTERMATIC - Free user manual and instructions
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| Product Type | Mechanical Time Switch |
| Brand | Intermatic |
| Model | T7402B |
| Category | Switch |
| Timer Range | 24 hours |
| Operating Voltage | 120-277 V AC |
| Switch Rating | 40 A |
| Number of Circuits | 1 |
| Contact Arrangement | Single-pole |
| Programming Method | Manual trippers |
| Minimum Program Interval | 1 hour |
| Mounting | Wall or surface mount |
| Enclosure Material | Metal |
| Dimensions (Approx.) | 4.5 x 3.5 x 2.5 in |
| Weight (Approx.) | 1 lb |
| Operating Temperature | -40°F to 130°F |
| Battery Backup | None required |
| Power Consumption | Mechanical operation, negligible |
| Compliance | UL listed |
| Warranty | 1 year limited |
| Maintenance | Periodic inspection of trippers |
| Spare Parts | Available from manufacturer |
Frequently Asked Questions - T7402B INTERMATIC
How do I set the on and off times on the T7402B time switch?
To program your Intermatic T7402B, remove the dial cover and slide the trippers to the desired ON and OFF times. Each tripper represents a 1-hour interval. Ensure the dial rotates in the correct direction and the time indicator matches the current time.
What is the maximum electrical load the T7402B can handle?
The T7402B is rated for 40 amps at 120-277 V AC. This makes it suitable for residential lighting and motor loads up to the rated capacity. Do not exceed the rating to prevent damage.
Can I use the T7402B with a 240V circuit?
Yes, the switch is rated for 120-277 V AC, so it can be used on 240V circuits. Ensure proper wiring and comply with local electrical codes.
How do I install the T7402B?
Installation should be performed by a qualified electrician. Connect the line and load wires to the screw terminals as per the wiring diagram included in the manual. Mount the switch in a standard electrical box.
Does the T7402B require a battery or power source to keep time?
No, the T7402B is a mechanical time switch with a clock motor that runs on line voltage. It maintains time as long as power is supplied. There is no battery backup.
What is the minimum on/off interval I can set?
The T7402B has a 24-hour dial with hourly trippers. The minimum interval is 1 hour. You cannot set intervals shorter than one hour.
Why is my T7402B not switching at the programmed time?
Check that the trippers are firmly attached and not bent. Verify the dial is aligned with the correct current time. Also, ensure the switch is not in override mode and the circuit breaker is on.
Can the T7402B be used for outdoor installations?
The T7402B is designed for indoor use in a NEMA 1 enclosure. For outdoor use, it must be installed inside a weatherproof enclosure.
Does the T7402B have a manual override?
Yes, the switch is equipped with a manual override lever that allows temporary ON/OFF control without altering the program. Return it to the AUTO position to resume timer operation.
What maintenance does the T7402B require?
Periodically inspect the trippers and dial for wear or debris. Clean with a dry cloth. If the clock motor stalls, contact Intermatic customer service or replace the switch.
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USER MANUAL T7402B INTERMATIC
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Product information
Brand : INTERMATIC
Model : T7402B
Category : Switch