Time Mark 259 Data Sheet

MODEL 259

TIME MARK is a division of

3-Phase Monitor

 DPDT 600VAC Output Contacts

 Adjustable Trip & Restart Delays

 Adjustable Voltage Level

 5 Year Unconditional Warranty

DESCRIPTION

The Model 259 3-Phase Monitor is designed to protect
individual 3-phase equipment and motors, when used
alone or in conjunction with shunt trip breakers. When
correct voltage and phase rotation are applied an
internal DPDT relay energizes.

A fault condition (phase loss, phase reversal, or low
voltage) drops out the relay and lights the LED failure
indicator. The Model 259 will detect a phase loss
condition even when regenerative voltage is present.

The Model 259 may be used with Wye or Delta
systems and requires no neutral connection. Standard
operating ranges are available from 120 to 575 VAC,
60Hz and 380VAC, 50Hz.

DIMENSIONS

SPECIFICATIONS

Model A259 B259 C259 D259 EX259

Nominal AC Voltage

(phase to phase)

Adjust Range (VAC) 85-125 160-260 380-500 450-600 300-400

Frequency 60Hz 50Hz

Power Consumption

Transient Protection 2500V for 10ms

Repeat Accuracy

Response Time

Reset Time

Reset Type

Dead Band

Output Contacts DPDT 3A at 480/600VAC 80% PF

Expected Relay Life Mech: 10 million operations

Operating Temp

Humidity Tolerance

Enclosure Material

Mounting

Weight

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

2.1W 3.3W 4.2W 6.9W 4.2W

10A at 240VAC 80% PF resistive

Elec: 100,000 operations at rated load

± 0.1 % (fixed conditions)

Adjustable 1 to 5 seconds

Adjustable 0.2 to 10 minutes

Automatic

Approximately 2%

- 20º to +131º F

0-97% w/o condensation

20 gauge steel

Surface

17 oz.

11/2011

© 2011 TIME MARK CORPORATION

MODEL 259

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 259.

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

THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.

Installation Instructions

INSTALLATION

Connect the 3-phase wiring to the terminals marked L1,
L2, L3.

Connect the control wiring to the terminals with the
contact markings (refer to the diagram on the unit). The
markings shown on the unit are the failed condition of the
contacts.

Apply power. If the contacts do not transfer (FAILURE
INDICATOR=Off), check that all three phases are present
and of the correct voltage. If all phases are correct, rotate
the VOLTAGE LEVEL adjustment counter-clockwise to
the MIN position.

If the contacts still do not transfer, remove power from the
unit. Reverse two of the three input wires and re-apply
power. The contacts should transfer to the normal
condition (normally-open contacts closed, FAILURE
INDICATOR=Off).

Note: Upon initial power up with proper voltage and phase
sequence it will take about 12 seconds before the trip led
will go out and the contacts will transfer to the normal state.

When making voltage level adjustments after the unit is
tripped the above will apply.

ADJUSTMENT

Note: During adjustment you may want to install a jumper
across the control contacts to prevent cycling the load on
and off.

Set the TRIP DELAY to 1 second. Rotate the VOLTAGE
LEVEL adjustment slowly clockwise, until the contacts
tr ansfer to the faile d conditio n (FAILU RE
INDICATOR=On). Slowly turn the adjustment
counterclockwise until the contacts reset to the normal
condition (FAILURE INDICATOR=Off).

Remove the jumper, if installed.
This setting will be correct for most applications. The trip

delay will prevent most nuisance tripping; however, if
nuisance tripping does occur, turn the VOLTAGE LEVEL
slightly farther counter-clockwise.

In making adjustments to eliminate nuisance tripping, the
VOLTAGE LEVEL adjustment should be rotated in very
small increments until the true nuisance trips are
eliminated. Adjust the TRIP DELAY setting, and RE­START DELAY as required for the application.

TYPICAL APPLICATION

Shunt Trip Breaker Operation

TYPICAL APPLICATION

Individual Motor Protection

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