DESCRIPTION
The Model 200 3-Phase Voltage Unbalance Monitor
is designed to continuously monitor a three-phase line
for unbalanced voltage conditions.
This device will only energize the relay if an unbalance
exists. Zero volts on all three phases is considered a
balanced condition. This allows the Model 200 to be
used with shunt breakers, so that main power can be
restored without resetting breakers.
The solid-state sensing circuit drives an internal
electromechanical relay. Indicator lights on the monitor
show when the voltage balance is within an acceptable
range; when an unbalance exists; and when the relay is
actually tripped.
When an acceptable voltage balance is reapplied, the
Model 200 will automatically reset the relay.
DIMENSIONS
.19 dia. typ.
6.06"
5.5"5.5"
3.88"
3.0"
2.08".62"
MODEL 200
3-Phase Voltage
Unbalance Monitor
ll Detects Unbalanced Voltages
ll Percent of Unbalance Adjustment
ll Automatic Reset
TIME MARK is a division of
Telephone: Main - (918) 438-1220
Sales - (800) 862-2875
Fax: (918) 437-7584
E-mail: sales@time-mark.com
Internet: http://www.time-mark.com
Doc No. 87A320 04/03
© 2003 TIME MARK CORPORATION
11440 East Pine Street
Tulsa, Oklahoma 74116
SPECIFICATIONS
Model A200 B200A B200B C200 D200 EX200
Nominal AC Voltages 120VAC 208VAC 240VAC 480VAC 575VAC 380VAC
Voltage Range ± 15% ± 15% ± 15% ± 15% +5 to -15% ± 15%
Frequency 60Hz 60Hz 60Hz 60Hz 60Hz 50Hz
Power Consumption
(per phase)
0.5W 1W 1W 2W 2W 2W
Transient Protection 2500VRMS for 10msec
Repeat Accuracy ± 0.1% (fixed conditions)
Unbalance Adjustment 2% to 10%
Response Time 100 msec
Reset Time Fixed 1 sec
Dropout Time Adjustable 0.2 to 20 seconds
Reset Type Automatic
Dead Band 0.5% max
Contact Rating DPDT 10 amps at 240VAC resistive
Expected Relay Life Mech: 10 million operations
Elec: 100,000 operations at rated load
Operating Temp - 40° to +131° F
Humidity Tolerance 0-97% w/o condensation
Mounting Surface
Enclosure Material ABS plastic
Weight 10 oz.
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