Time Mark 265 Data Sheet

3.0"

.20 dia. typ.

5.5"

6.06"

3.88"

2.08"

.62"

MODEL 265

TIME MARK is a division of

3-Phase Monitor

 HVAC or Compressor Applications

 Automatic Reset

 Adjustable Restart Delay

 Fast Trip Response

 UL Recognized; CSA Certified

DESCRIPTION

The Model 265 3-Phase Monitor continuously monitors

3-phase Wye or Delta systems for phase loss, low

voltage and phase reversal. When properly adjusted,
the Model 265 Monitor will detect phase loss on a
loaded motor even when regenerated voltage is
present.

The solid-state sensing circuit drives an internal relay, in
a fail-safe configuration, i.e.; the relay is energized
when correct voltage and phase rotation are applied.

Operating power for the Model 265 is drawn from the 3­phase lines being monitored. An adjustable timer delays
restarting of the load, allowing up to five minutes for
compressor head pressures to bleed off, in the event of
short-term power failures.

The Model 265 Monitor is not sensitive to line current,
and can be used with any size motor or compressor.

SPECIFICATIONS

AUTO Reset A265 B265 C265 D265 EX265

Nominal AC Voltage
(phase to phase)

Adjustment Range 85-120V 160-240V 380-480V 450-575V 300-380V

Frequency 60Hz 60Hz 60Hz 60Hz 50Hz

Power Consumption

Transient Protection 2500 VRMS for 10ms

Repeat Accuracy

Response Time 50ms maximum

Reset Time Adjustable - 20 to 300 seconds ±10%

Dead Band Approximately 2%

Output Contacts SPDT 10 amps at 240VAC resistive

Expected Relay Life Mech: 10 million operations

Operating Temperature - 20° to +131° F

Humidity Tolerance 0 - 97% w/o condensation

Enclosure Material ABS plastic

Mounting Surface

Weight 10 oz.

Agency Approvals UL Recognized and CSA Certified

120VAC 208/240VAC 480VAC 575VAC 380VAC

0.25W 0.5W 1.5W 2.5W 1.5W

± 0.1% of set point (fixed conditions)

Elec: 100,000 operations at rated load

DIMENSIONS

11/2011

© 2011 TIME MARK CORPORATION

MODEL 265

TIME MARK is a division of

3-Phase Monitor

READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.

KEEP THIS DATA SHEET FOR FUTURE REFERENCE.

GENERAL SAFETY

POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 265.

ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.

THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.

Installation Instructions

INSTALLATION

Rotate both the VOLTS and MINUTES adjustments
counter-clockwise, to their lowest setting. The 3-phase
wiring should be connected to the terminals marked A,
B and C.

The control wiring will be connected to the opposite end
of the unit, to the terminals with the relay contact
markings. The markings printed on the Model 265 are
the failed condition of the contacts.

When power is applied to the unit, the TRIP LED
indicator should not be lit (the reset switch may have to
be pressed on manual reset versions). If the TRIP
indicator comes on when power is applied, check that
all three phases are present and of the correct voltage.
If the voltage is correct, remove power, then reverse
two of the three phase wires.

Re-apply power. The TRIP indicator should not be on.
After a brief delay (approx. 20 seconds) the LED
indicator marked NORMAL should come on, and the
contacts will transfer.

ADJUSTMENT SETTINGS

Rotate the VOLTS adjustment clockwise, until the
contacts trip and the TRIP indicator illuminates.

Slowly rotate the VOLTS adjustment counter-clockwise,
until the LED goes out (on manual reset versions, hold
the RESET button down while making this adjustment).

After approximately 20 seconds, the contacts will
transfer and the NORMAL indicator will come on. If
nuisance trips occur, rotate the VOLTS adjustment
slightly farther, counter-clockwise. This method of
adjustment will be correct in most cases.

Set the MINUTES delay as required. Application
dependent.

TROUBLESHOOTING

Should the Model 265 Monitor fail to operate properly,
check that all three voltages are present, and are of the
correct voltage level and phase rotation (a Model 108A
or 108B Phase Sequence Detector should be used to
verify phase rotation). Check all fuses and verify that all
wiring connections are correct. If problems persist,
contact your local Time Mark Distributor, or the factory
for assistance.

TYPICAL APPLICATION

Shows No Power Applied

WARRANTY

This product is warranted to be free from defects in
materials and workmanship, and is covered by our
exclusive 5-year Unconditional Warranty. Should this
device fail to operate for any reason, we will repair it for
five years from the date of manufacture. For complete
warranty details, see the Terms and Conditions of Sales
page in the front section of the Time Mark catalog or
contact Time Mark at 1-800-862-2875.

11/2011

© 2011 TIME MARK CORPORATION