Programming instructions

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IL 30-471 (E)
DT AND DTM TIME DELAY RELAYS
Option # 32A and 32B
Ratings -
2 Watts Power Consumption
Input coil Voltage - 120 volts at 50/60 Hertz
Contact Rating - 10 amperes resistive at 120 volts
Operating Temperature Rating - - 30°C to + 65°C
Time Ratings - Various available
The relay is incorporated in the control scheme to stop
the transfer switch with both breakers open, This is to
allow residual load voltage to decay prior to closing on
another supply which could be out of phase. When the
timing cycle is complete, the relay reinitiates transfer to
the available source.
TIME DELAY ENGINE STARTING RELAY
Option # 2A, 2B and 2C
Ratings -
0.75 Watts Power Consumption
Input coil voltage - 120 volts at 50/60 Hertz
Contact Rating - 10 amperes resistive at 120 volts
Time Range - Various available (see below)
Operating Temperature Range - - 30°C to + 65°C
0.5 - 15 sec. time range S# 5086AOlGOl Option #2A
4 - 120 sec. time range S# 5086AOlGO2 Option #2B
10 - 300 sec. time range S# 5086AOlGO3 Option #2C
TRANSFORMER MODULES
Modules include all necessary control, voltage sensing and
logic transformers.
Two versions are available. The standard module has
three phase monitoring of the normal source and one
phase monitoring of the emergency source. The optional
module has three phase monitoring on both the normal
and emergency sources.
PLANT EXERCISER
Option # 23A, 23B and 23C
Ratings - Input voltage 120 volts
Contact rating 16 Amps at 250 VAc, 45 - 60 Hz.
150 hour battery back-up
Operating Temperature Range: - 10°C to + 55°C
Accuracy: +/- 4 minutes per year
Description
The Plant Exerciser utilizes a programmable electronic
time switch. It incorporates a seven day time base, there-
fore each day of the week can be uniquely programmed.
For convenience, Block Programming is also provided,
whereby up to seven days can be grouped together if the
“on” and “off” times are the same.
In case of power failure, the built-in nickel-cadmium timer
battery maintains the time of day, program storage and
LCD display for 150 hours (six days). During this time,
output relays are de-energized.