Time Mark 2601 Data Sheet

MODEL 2601

TIME MARK is a division of

Voltage Sensor

 Monitors Under Voltage

 SPDT Output

 Automatic Reset

 5 Year Unconditional Warranty

DESCRIPTION

The Model 2601 Voltage Sensor is a single-setpoint
under voltage monitor. Input voltages above the
setpoint will cause the output contact to energize and
the LED indicator to illuminate. Input voltages below the
setpoint will cause the output contact to de-energize
and the LED indicator will go off.

The 2601 Voltage Sensor is available in AC or DC
versions. AC models of the 2601 are not frequency
sensitive and can be used on systems from 50 to
400Hz. The voltage level is screwdriver adjustable over
a wide operating range.

This device requires a standard 8-pin socket for
mounting (see Model 51X120 under Accessories in the
Time Mark catalog).

DIMENSIONS

SPECIFICATIONS

2601 - AC VERSIONS

Nominal AC Voltages 24VAC 120VAC 208VAC 240VAC

Voltage Range 19 - 24 90 - 120 185 - 200 200 - 240

Max. Input Voltage 32V 160V 250V 285V

Input Frequency (Hz) 50 - 400 50 - 400 50 - 400 50 - 400

2601 - DC VERSIONS

Nominal DC Voltage 12VDC 24VDC 28VDC 48VDC 110VDC

Voltage Range 10 - 12 19 - 24 22 - 28 33 - 48 85 - 100

Max. Input Voltage 17V 32V 37V 62V 145V

2601 - ALL VERSIONS

Power Consumption 2W max.

Setpoint Stability ± 0.5% of setpoint

Dead Band 2% or less

Polarity Protection DC versions only

Trip Response 0.5 second fixed (± 0.1 second)

Reset Time 0.1 second

Output Contacts SPDT 10A at 240VAC resistive

Expected Relay Life Mech: 10 million operations

Elec: 100,000 at rated load

Operating Temp -20º to +122º F

Humidity Tolerance 97% w/o condensation

Mounting 8-pin socket *(order separately)

Enclosure Material ABS plastic

Weight 5 oz.

* Order 8-pin socket number 51X120

Sales [phone]

Main [phone]

10/2013

© 2013 TIME MARK CORPORATION

MODEL 2601

TIME MARK is a division of

Voltage Sensor

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 2601.

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

THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.

Installation Instructions

INSTALLATION

The Model 2601 is a socket-mounted voltage sensing
relay. The pin configuration diagram, below and on the
unit, shows the contacts in the power off or tripped
condition. Connect the wiring to the socket as shown in
the Typical Application Diagram. Observe the proper
polarity of the input voltage for DC models.

PIN DIAGRAM

ADJUSTMENT PROCEDURE

NOTE: When adjusting the Model 2601 you may wish
to jumper the control circuit contacts to prevent tripping
the load on and off. A variable voltage source and a
digital voltmeter provide the most accurate means of
calibrating the trip point.

For under voltage sensing, slowly rotate the
adjustment pot counter clockwise until the indicator
light just illuminates and the contacts transfer. Any
voltage below this level will now trip the relay.

A reasonably accurate voltage setting can be obtained
by using only the operating line voltage. Apply the
voltage and follow the adjustment procedure above.
Any voltage approximately 2% to 4% below the nominal
voltage will now trip the relay. To prevent nuisance
tripping you may need to turn the adjustments slightly
lower as needed.

NOTE: When installing the Model 2601 in areas of high
humidity or contamination, the base area and all exposed
metal parts of the socket should be coated with a good
quality silicone grease such as Dow Corning* DC-4 or DC-4x.
Insert the relay into the socket and wipe off excess grease
from around the base. This will help prevent moisture and
other contaminants from entering the base and socket areas.

TYPICAL APPLICATION

4

3

Model 2601

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.

Sales [phone]

Main [phone]

10/2013

© 2013 TIME MARK CORPORATION