P1121 - Switch INTERMATIC - Free user manual and instructions

Product Type	24-Hour Time Switch
Brand	Intermatic
Model	P1121
Voltage Rating	120-277 VAC, 60 Hz
Switch Rating	40 A resistive, 40 A tungsten, 1 HP (120 V) / 2 HP (240 V)
Timer Mechanism	Mechanical, 24-hour dial with trippers
Number of Programs	Up to 12 ON/OFF events per day
Enclosure Type	Indoor, metal case with cover
Dimensions (H x W x D)	5.5 x 3.5 x 2.5 inches (approx.)
Weight	1.2 lbs (approx.)
Wire Connections	Terminal block for line, load, neutral, ground
Installation	Wall-mount or junction box; requires neutral wire
Power Consumption	Clock motor: 2 W (approx.)
Operating Temperature	-40°F to 140°F (-40°C to 60°C)
Key Features	24-hour scheduling, manual override, skip feature, tripper storage
Maintenance	Periodic cleaning; replace trippers if worn
Safety	Safety cover, suitable for indoor use; disconnect power before servicing
Spare Parts	Replacement trippers, dials, motor assembly available
Repairability	Modular design; motor and mechanism replaceable
Certifications	UL Listed, CSA Certified

Frequently Asked Questions - P1121 INTERMATIC

How do I set the time on my Intermatic P1121 time switch?

Turn the dial clockwise until the correct time of day aligns with the triangle mark. Ensure the clock motor is powered to maintain time.

Can the P1121 be used for outdoor lighting?

The P1121 is designed for indoor use only. For outdoor applications, use a weatherproof enclosure.

How do I program the ON/OFF times?

Push trippers onto the dial at desired times: ON trippers (longer) for start, OFF trippers (shorter) for stop. Each pair creates one cycle.

What is the maximum load the P1121 can handle?

The switch is rated for 40 amps resistive, 40 amps tungsten, and motor loads up to 1 HP at 120V or 2 HP at 240V.

Why is my P1121 not keeping time?

Check that power is supplied to the clock motor. If the motor hums but dial doesn't move, the motor may need replacement.

Can I override the timer manually?

Yes, move the manual override lever to ON or OFF to bypass programmed settings temporarily.

Does the P1121 require a neutral wire?

Yes, a neutral wire is required for the clock motor to operate at 120V. For 240V operation, consult the wiring diagram.

How many ON/OFF events can I set per day?

The dial accommodates up to 12 pairs of trippers, allowing 12 ON and 12 OFF events per 24-hour cycle.

What should I do if the trippers are loose?

Replace worn trippers with Intermatic replacement trippers (model 13651). Ensure they snap firmly into the dial slots.

Is the P1121 compatible with smart home systems?

No, the P1121 is a mechanical time switch and does not integrate with smart home systems.

USER MANUAL P1121 INTERMATIC

RAINTIGHT OUTDOOR TIMER

PROGRAM REPEATS EVERY 24 HOURS

TO SET TIMER: (SEE ILLUSTRATION)

1. Insert ON (GREEN) and OFF (RED) trippers into dial at desired ON and OFF times.
2. Turn dial CLOCKWISE → one or more complete revolutions until the arrowhead is aligned with time-of-day (AM or PM) in window.
3. Turn lamp or appliance ON.
4. Plug extension cord, lamp or appliance into timers receptacle and plug timer cord into outlet, suitable for "wet locations" if outdoors.

FOR EARLY ON OR OFF OPERATION,

Turn manual knob counter clockwise to desired ON or OFF position, Timer will follow next scheduled automatic operation.

IN CASE OF POWER FAILURE, RESET TIMER, (SEE STEP 2)

WARNING Risk of Electric Shock

Do not permit children to operate the timer or pool/spa unless they are closely supervised at all times. Install only on a GROUNDED 120VAC circuit protected by a GFCI.

Test GROUND FAULT protection regularly. If it fails to reset, DO NOT USE the pool or spa! Contact a qualified service technician. Always disconnect electricity before servicing this timer or the equipment connected to it. THIS TIMER IS NOT TO BE USED AS A POWER DISCONNECT.

Timer must be installed vertically at least 3 ft. above ground level and at least 5 Ft. away from edge of Pool or Spa.

Wattage of lamps or appliance being controlled should not exceed capacity of timer.

MODEL: P1121 15 AMP (1800 WATT) RESISTIVE; 15 AMP

(1800 WATT) TUNGSTEN; 15 FLA (90 LRA) MOTOR-120 VOLT 60 HZ.

INTERMATIC INCORPORATED MADE IN MEXICO

154--01980-REVC