Mars 32387 User Manual
®
MARS Solid State Timers
32392 32387
3
2390
3
2505
COIL OF
RELAY,
CONTACTOR,
ETC.
COIL OF
RELAY,
CONTACTOR,
ETC.
SWITCH
OR
T-STAT
SWITCH
OR
T-STAT
FIG. 1 FIG. 2
F
ARS SERIES
M
MARS Solid State Timers
325
COMPONENT
32392
32505
32390
Delay On Break
MARS solid state delay on break timers are designed to prevent
short cycling of air conditioning, refrigeration and heat pump
compressors. Upon application of power the load is energized.
When the thermostat opens, or if there is a momentary loss of
power, the load is de-energized and the delay period begins.The
compressor will not start again during the delay period.
MARS number 32392 is a versatile three wire timer that features
adjustable timing and can be used with any voltage from 19 thru
240 VAC, 50 or 60 Hz. MARS 32387 features easy to install two
wire connection. Model 32387 incorporates circuitry to allow
continuous current flow through the thermostat anticipator. Ideal
for heat pumps.
The MARS 32390 and the new 32505 are the most simple and
economic ways to stop short cycling on 24 VAC controlled
systems. Both devices are fixed 5 minute delay on break timers.
Features:
• 1 to 3 second random re-start
• Models for two-wire or three-wire connection
• 32387 for use with anticipator thermostats
• Dial adjustable
• Compact size
• Mounts in any position
• .25 in. quick connect terminals
• Proven reliability
• MARS delay-on-break timers are not load sensitive
• MARS 32505 features two wire leads
Adjustable
TIME TYPE
MARS TYPE DELAY OF INPUT MAX VOLTAGE CONNECTION
NO. DELAY RANGE ADJUSTMENT VOLTAGE HZ AMPS. DROP DIAGRAM
32392 on break 6 sec...5 min. dial 19...240 VAC 50/60 1 2.5 at 1 amp. 1
32387 on break 120...300 sec. dial 24 VAC 50/60 1 3 at 1 amp. 2
Fixed Delay
32390 on break 5 min. none 24 VAC 50/60 1 2.5 at 1 amp. 2
32505 on break 5 min. none 20-30 VAC 50/60 1 3 at 1 amp 2
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