DESCRIPTION
The
Model 263
continuously monitors 3-phase power systems
for phase loss, low voltage and phase reversal. The monitor
consists of a solid-state sensing circuit, driving an
electromechanical relay.
Applying correct voltage and phase rotation energizes the
relay. When properly adjusted, a fault condition will cause the
relay to de-energize, even when regenerated voltage is
present.
When the fault is corrected, the Model 263 automatically
resets. A manual reset version is also available. The SG
Model has silver with gold flash contacts for low current
applications.
The Model 263 does not require a neutral connection, and can
be used on Wye or Delta systems. Each of the five different
voltage ranges is adjustable to allow the monitor to be set for
existing conditions. NORMAL and TRIP L E D indicators are
provided to aid in adjustment and system troubleshooting.
Detects Phase Loss or Reversal
and Low Voltage
400Hz and Gold Contact Options
Automatic or Manual Reset
UL Recognized and CSA Certified
MODEL 263
3-Phase Monitor
TIME MARK is a division of
11/2011
© 2011
TIME MARK CORPORATION
SPECIFICATIONS
AUTO Reset
MANUAL Reset
GOLD-AUTO Reset
GOLD-MAN Reset
A263
A263M
A263SG
A263SGM
B263
B263M
B263SG
B263SGM
C263
C263M
C263SG
C263SGM
D263
D263M
D263SG
D263SGM
EX263
EX263M
EX263SG
EX263SGM
Nominal AC voltage
(phase to phase)
120VAC
208/240VAC
480VAC
575VAC
380VAC
Adjustment Range
85-120V
160-240V
380-480V
450-575V
300-400V
Frequency
60Hz
60Hz
60Hz
60Hz
50Hz
Power Consumption
0
.
75W
1
.
5W
4
.
5W
7
.
5W
4.5W
Transient Protection
2500 VRMS for 10ms
Repeat Accuracy
± 0
.
1% of setpoint (fixed conditions)
Response Time
50ms
Dead Band
Approximately 2%
Output Contacts
All
SG
models: SPDT silver w/gold flash 5 amps at 240VAC resistive
All other models: SPDT 10 amps at 240VAC resistive
Expected Relay Life
Mech:
10 million operations
Elec:
100,000 operations at rated load
Operating Temp
- 20° to +131° F
Humidity Tolerance
0 - 97% w/o condensation
Enclosure Material
ABS plastic
Mounting
surface
Weight
9
.
5 oz
Agency Approvals
ALL VERSIONS - UL Recognized and CSA Certified
2.08"
.47"
5.5"
.203
dia. typ.
3.0"
3.88"
5.5"
3.0"
3.88"
.203
dia. typ.
Manual Reset Button
(manual version only)
6.06"
DIMENSIONS