The Time Mark Model 15 was designed to protect your valuable equipment from the damaging effects of phase reversal by sensing and automatically correcting for phase reversal. Under normal power conditions, incoming A B C voltage is passed straight through the device to the A B C output terminals (4 amps @ 480 VAC resistive max). If the unit detects an incoming reverse phase condition (C B A), it will light the reverse phase LED and internally switch 2 of the phases and then pass the corrected phasing out to output terminals A B C. If your load is higher than 4 amps @ 480VAC resistive.

The Model 15 provides an auxiliary output relay to put in the control circuit of a remote reversing contactor. If phasing is correct, the relay will remain in the static condition (N.C contact will remain closed and N.O. will remain open). If the Model 15 detects a reverse phase input, the auxiliary output relay will energize and the relay contacts will switch (N.C contact will open and N.O. will close).

Manufacturer Specs

General Specification

Model                     15-240                 15-480

Nominal voltage (phase to phase)      240VAC          480VAC

Operating range      ± 10%

Frequency               50 to 60Hz

Power consumption    2W per phase

Transient protection    2500V for 10ms

Repeat accuracy     ± 0.1% (fixed conditions)

Response time        .05 seconds

Reset time              .05 seconds

Reset type              Automatic

Dead Band             Approximately 2%

Output contacts (AUX)
Output contacts (3 Phase)       SPDT 10A at 240VAC resistive
3P3T 4A at 480VAC resistive

Expected relay life Mechanical: 10 million operations
Electrical: 100,000 at rated load

Operating temperature            - 20° to +140° F

Humidity tolerance 0 - 97% w/o condensation

Case material          NORLY

Mounting                Surface Mount

Weight                    15.9 oz.

Tech Specs

Three Phase Monitor Relays

3-Phase Monitor Relay Function    Phase Reversal Only

Max Nominal Phase to Phase Voltage (monitors) 240 VAC

Min Nominal Phase to Phase Voltage (monitors)  240 VAC

Time Mark Mounting          Surface Mount

Test Equipment General Attributes

Warranty                  5 YEARS

Warranty Details      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.

Product Weight        15.9 OUNCES (0.994 LBS)

Product Height         3.88 IN

Product Length        5.5 IN

Product Width          2.1 IN

Country of Origin     United States

Shipping Height        3.88 IN

UPC                           662917001008

Shipping Length       5.50 IN

Shipping Width        2.10 IN