DESCRIPTION
The Model 2638 3-Phase Monitor combines a 3-phase
monitor with a line voltage and phase sequence indicator.
Like other Time Mark monitors, the Model 2638 senses
phase loss, phase reversal and low voltage.
When power and phasing are correct, the internal relay
energizes. Status indicators will show that all phases are
present, and the direction of phase rotation.
When a fault occurs, the monitor trips its relay and
indicates which phase is lost, or, if a reversal is present.
This allows you to automatically protect your equipment by
correcting for the appropriate fault condition. The Model
2638 will automatically reset when correct power is
restored.
One 50 Hz version and two 60 Hz versions are available
from stock.
DIMENSIONS
ll Detects Phase Loss, Phase Reversal
and Low Voltage
ll LED Status Indicators
ll Automatic Reset
ll 5 Year Unconditional Warranty
MODEL 2638
3-Phase Monitor
with Line Voltage & Phase Sequence Indicator
3.0"
5.5"
3.88"
ABC
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. 87A371 12/00
© 2000 TIME MARK CORPORATION
11440 East Pine Street
Tulsa, Oklahoma 74116
Model B2638 C2638 EX2638
Nominal Voltage 208/240 VAC 480 VAC 380 VAC
Frequency 60 Hz 50 Hz
Adjustment Range 160-240 380-480 300-400
Power Consumption 3.7W 6.7W 6.5W
Transient Protection 2500V for 10 msec
Repeat Accuracy ±0.1% (fixed conditions)
Response Time 0.05 seconds
Reset Time 0.05 seconds
Reset Type Automatic
Dead Band Approximately 2%
Output Contacts SPDT 10A at 240 VAC resistive
Expected Relay Life Mech: 10 million operations
Elec: 100,000 operations at rated load
Operating Temperature -40° to +131° F
Humidity Tolerance 0-97% w/o condensation
Enclosure Material ABS plastic
Mounting Surface
Weight 6 oz.
SPECIFICATIONS
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