®
Electronic 24 Hour Time Switches
With Battery Carryover
OWNER/INSTALLER INSTRUCTION MANUAL
ATTENTION: READ CAREFULLY BEFORE ATTEMPTING TO INSTALL YOUR INTERMATIC
TIME SWITCH. FAILURE TO COMPLY WITH INSTRUCTIONS COULD RESULT IN PERSONAL
INJURY AND/OR PROPERTY DAMAGE! RETAIN FOR FUTURE REFERENCE.
Description
The Intermatic Electronic 24 Hour Time Switch automatical-
ly switches loads according to a preset daily schedule.
This time switch is designed to directly switch loads up to
30 amps and to switch resistive or inductive loads up to
the time switch rating. For use as a control timer in
applications requiring 24 hour load control such as
lighting,
heating,
air
conditioning
systems,
pumps,
etcetera. Up to eight set points or events (4 ON/4 OFF) can
be preset. this schedule will repeat on a daily basis. The
program can be overridden by using the MANUAL position.
Specifications
CLOCK VOLTAGE: 120, 208, 240, 277 V.A.C., 50/60 Hz.
Jumper Selectable
POWER CONSUMPTION: 3.0 Watts Max. (ET102C)
6.0 Watts Max. (ET104C)
CONTACT CONFIGURATION: SPST model ET102C
DPST model ET104C.
SWITCH RATING: (Per Pole for ET104C)
•
30 Amps Inductive/Resistive, 24/120/240 V.A.C., 60 Hz.
•
20 Amps Resistive - 28 V.D.C.,
•
1 H.P. 120 V.A.C., 60 Hz.
•
2 H.P. 240 V.A.C., 60 Hz.
•
5 Amps Tungsten, 120/240 V.A.C., 60 Hz.
•
20 Amps Ballast 277 V.A.C., 60 Hz.
SET POINTS (EVENTS): 8 total (4 ON/4 OFF).
BATTERY POWERED CLOCK OPERATION: 3 Years minimum
(AA industrial grade alkaline supplied with time switch)
MIN. “ON” or “OFF” TIME: 1 minute.
MAX. “ON” or “OFF” TIME: 23 hours 59 minutes.
SHIPPING WEIGHT: 2.5 Lbs. (1.1 Kg)
CASE: Drawn steel; 7-3/4” (19.7 cm) high, 5” (12.7 cm)
wide, 3” (7.6 cm) deep; gray finish w/lockable spring hasp.
KNOCKOUTS: Combination 1/2 - 3/4” (one on back and
each side, two on bottom).
WIRE SIZE: AWG #10 through #18.
General Safety Information
WARNING: Disconnect all power before installing or
servicing this time switch or its connected loads.
1. Follow all local electrical and safety codes, National
Electric Code (NEC), as well as Occupational Safety and
Health Act (OSHA).
2. If the power disconnect point is out of sight, lock it in the “OFF”
position and tag it to prevent unexpected application of power.
3. This time switch case must be grounded.
4. Do not exceed the maximum current carrying capacity of this
time switch.
5. Always replace the plastic insulator covering the terminal
before turning power “ON”.
AM ON
5:20
ET100 SERIES
INCLUDING MODELS:
ET102C, ET102CM (SPST)
ET104C, ET104CM (DPST)
