A18 ITC INDUSTRIAL TIMER COMPANY, A18 Datasheet - Page 2

Timer-Counter Display Panel

A18

Manufacturer Part Number
A18
Description
Timer-Counter Display Panel
Manufacturer
ITC INDUSTRIAL TIMER COMPANY
Datasheet

Specifications of A18

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Gear Rack Chart
1. C
2. M
3. ORDERING INFORMATION
4. IN ADDITION...
Because of the increased torque encountered with multi-switch cam timers in the rapid time cycles, the Series MC-0 and
RC-0 timers require High Torque Motors (HTM). This is also true of some MC-1 and RC-1 timers. (See vertical shaded
area of chart.) To determine the need of an HTM in the Series MC-1 and RC-1, multiply required time cycle in seconds by
2/3. The answer will be the maximum number of switches that can be operated with a standard timing motor; e.g. time
cycle 15 seconds, 2/3 x 15s=10. 10 switches can be operated at 15 seconds with a standard timing motor, more than 10
load switches will required the use of an HTM. If there is any doubt relative to the use of an HTM, consult factory. Note
that the C-12 Gear Rack (horizontal shaded area of the chart) provides a cam rotation speed directly proportional to the
motor output; e.g. MC-6=1 revolution in 5 minutes. Also, the letter C which signifies CYCLES = 1/60th of a second.
Gear Rack Chart
c - Cycles
s - Seconds
m - Minutes
h – Hours
Select basic type of timer required for your application, i.e., MC (recycling), RC (single), etc.
Locate overall time cycle required for one revolution of camshaft on the gear rack chart.
Note the model designated from the top of that column, i.e., MC-2, RC-4, etc.
Cross column from time cycle for gear rack.
Specify required number of load switches.
Specify voltage and frequency.
Basic Type: MC
Time Range: 2
Gear Rack (specific time cycle): A-12
Number of load switches: 5SW
Voltage and Frequency: 120/60
HART
ODEL
K
S
ELECTION
EY
Industrial Timer Company
30 Industrial Park Road
Centerbrook, CT 06409
800-394-7130
www.industrialtimercompany.com
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