Intermatic KM2 STu-1G, KM2 SWu-1G, KM2 ST-1G, KM2 ST-2G, KM2 SW-2G Operating Instructions Manual

KM2 Series In-Wall Timers

Replaces standard wall switch to provide automatic
control of outdoor or indoor lighting, fans, pumps, office
machines, and other types of circuits. Captive trippers
are easy to set, can’t be lost. 72 trippers provide up to 36
ON/OFF events in 24 hour period. OFF/ON/AUTO over­ride switch provides continuous ON or OFF positions.
UL Listed. Easy wiring and installation.

FEATURES

✪

24 hour or 7 day time switch program

✪

Captive trippers with 20 minute switching interval

(2-1/3 hr. for 7 day)

✪

Reliable synchronous timer motor

✪

SPST or SPDT 20A, 1HP @ 120V switch

✪

OFF/ON/AUTO manual switch

✪

Mounts to standard electrical wall boxes

✪

Available with 1, 2, 3, or 4-gang wall plates with toggle switch open-

ings, or 2-gang wall plates with either duplex receptacle or decora­tor opening

✪

Three way (SPDT) switch available

✪

Dual timer allows control of two separate circuits with different time

schedules

✪

UL and Canadian UL Listed

1-gang

SPECIFICATIONS

Clock Input: 120VAC, 60Hz
SPST and SPDT Switch Rating:
20A @ 120VAC, 60Hz
2400W Resistive
8A Inductive
1HP @ 120VAC
1350W Tungsten

Environmental Ratings:

Operating Temperature Range:

–40°F to 180°F (–40°C to 85°C)
Operating Humidity: 0 - 95% RH,
non-condensing

Wiring Connections: Three #14AWG lead wires

ORDERING DATA – 120V, 60Hz Models

24 Hour 7 Day
Model Code Model Code Description Switch

KM2 ST-1G KM2 SW-1G single gang 20A, SPST
KM2 STu-1G KM2 SWu-1G three-way single gang 20A, SPDT
KM2 ST-2G KM2 SW-2G 2-gang/toggle opening 20A, SPST
KM2 ST-2R N/A 2-gang/receptacle opening 20A, SPST
KM2 ST-2D KM2 SW-2D 2-gang/decorator opening 20A, SPST
KM2 ST-3D N/A 3-gang/decorator opening 20A, SPST
KM2 ST-3G N/A 3-gang/toggle openings 20A, SPST
KM2 ST-4G N/A 4-gang/toggle openings 20A, SPST
KM2 STST-2G KM2 SWSW-2G 2-gang/dual timer (2) 20A, SPST

4-gang/toggle

2-gang/toggle

2-gang/decorator

Dual Timer

(2-gang with 2 KM2’s)

Installation

HOT (BLACK)

(RED)

3-Way Switch

(BLUE)

LOAD

NEUTRAL (WHITE)

HOT (BLACK) LOAD (RED)

LOAD

NEUTRAL (WHITE)

1. Read the operating instructions carefully.

2. Check the input and output ratings marked on the
unit to make sure this product is suitable for your
application.

3. Disconnect power supply prior to installation to pre­vent electrical shock.

4. Damage to the contacts caused by short circuiting
will void warranty.

5. Wire in accordance with National and local electri­cal code requirements.

BE SURE ALL CONNECTIONS ARE SECURE.
DOUBLE CHECK ALL TWIST-ON WIRE CON­NECTORS.

6. Mount timer into wall box using supplied screws.

7. If timer does not operate, check that the timer’s black
wire is connected to hot line and not the load. If nec­essary, reverse connections to red and black wires.

Manual Operation

The slide switch provides manual operation of the
load, overriding the timer. If set to the position, the
load will be continuously off, and if set to , it will be
continuously on. For automatic timed on’s and off’s,
the switch must be in the position.

Programming

The timer dial contains 72 “trippers” which, when set
at the inner perimeter of the dial, will turn the switch
“ON” at the time adjacent to the tripper. The switch will
return to the “OFF” position when the timer progresses
past the inward trippers.

The 72 trippers allow multiple on/off sequences with a
minimum on or off time of 20 min. To program, set all
trippers inward for the duration of the on event.

For example, to turn lights on at 5:00pm and off at
11:00pm, leave inward the 18 trippers between 5 and
11 on the “pm” side of the dial. Make sure manual
switch is in the position.

NOTE: For any times where “OFF” programming
is desired, the trippers must be moved to the outer
perimeter of the dial.

Setting The Time

Rotate the dial clockwise until the correct time and
“am” or “pm” is opposite the arrow on the plate.

CAUTION: Do not turn dial counter-clockwise, as the
timer will be damaged.

ONE YEAR WARRANTY

If this unit fails due to a defect in material or workman­ship within one year after purchase, Intermatic will repair
or replace the unit free of charge. This warranty does not
apply to damage due to accidents, abuse, mishandling
nor to units not used in accordance with directions. This
warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.

Standard Installation 3-Way Installation

INTERMATIC INCORPORATED

Spring Grove, IL 60081-9698

www.intermatic.com

Wiring Diagrams

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