DIMENSIONS
DESCRIPTION
The Model 2522 continuously monitors 3-phase power
lines for abnormal conditions. When properly adjusted, the
Model 2522 will detect phase loss on a loaded motor even
when regenerated voltage is present.
This unit consists of a solid-state voltage and phase-angle
sensing circuit, driving an electromechanical relay with
DPDT contacts. When correct voltage and phase rotation
are applied, the internal relay will energize. A fault
condition will de-energize the relay. When the fault is
corrected the Model 2522 will reset.
Both automatic and manual reset versions are available.
The Model 2522 does not require a neutral connection, and
can be used with Wye or Delta systems. Adjustment
ranges are sufficiently wide to allow for proper adjustment
to existing conditions. A failure indicator is provided to aid
in adjustment and system troubleshooting.
TYPICAL APPLICATION
MODEL 2522
3-Phase Monitor
ll Detects Phase Loss, Low Voltage, Phase Reversal
ll Automatic or Manual Reset
ll DPDT Relay Output
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. 87A382 12/00
© 2000 TIME MARK CORPORATION
11440 East Pine Street
Tulsa, Oklahoma 74116
Shows No Power Applied
2.88”
2.44”
1.75”
3.52”
SPECIFICATIONS
AUTO Reset
MANUAL Reset
B2522B
B2522BM
2522B
2522BM
Nominal Voltage 120 VAC 208/240 VAC
Max Input Voltage 132 VAC 262 VAC
Adjustment Range 85-120 VAC 160-240 VAC
Frequency 60 Hz 60 Hz
Power Consumption .75 W 1.5 W
Transient Protection 2500 VRMS for 10ms
Repeat Accuracy ±0.1% of set-point (fixed conditions)
Response Time 0.05 seconds
Reset Time 0.05 seconds
Reset Type Automatic or Manual
Dead Band 2%
Contact Rating DPDT 7.5 amps , 115 VAC resistive
Max. Contact Rating 870 VA, 30 VDC, 300 VAC
Expected Relay Life Mech: 10 million operations
Elec: 100,000 operations at rated load
Operating Temp - 40º to +131º F
Humidity Tolerance 97% w/o condensation
Enclosure Material ABS plastic
Mounting *11-pin socket (order separately)
Weight 5 oz.
*Order socket number 51X016
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