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Time Mark Model 158 3-Phase Monitors

The Model 158 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 158 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electro-mechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset. The Model 158 does not require a neutral connection, and can be used with Wye or Delta systems. Four versions cover 120V, 208/240V, 480V (60Hz) and 380V (50Hz). Voltage ranges are sufficient to allow for proper adjustment to existing conditions. A front-mounted LED failure indicator is provided. The R versions of the Model 158 monitor have an additional LED indicator for RESTART and a 5 minute short cycle timer, to delay restarting the motor.

 

Reset
Part #
Automatic Reset
Contacts
Manual Reset
Mount
Phase Sensing
Trip Delay
Trip Restart
Voltage Range

158B  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
208-240 VAC 208-240 VAC Add to Quote Button
158BR  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
208-240 VAC 208-240 VAC Add to Quote Button
A158B  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
480 VAC 480 VAC Add to Quote Button
A158BR  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
480 VAC 480 VAC Add to Quote Button
B158B  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
120 VAC 120 VAC Add to Quote Button
B158BR  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
120 VAC 120 VAC Add to Quote Button
EX158B  Yes
SPDT
No
DIN, Surface Mount
Phase reversal, Phase Loss
No
Fixed
380 VAc, 50 Hz 380 VAc, 50 Hz Add to Quote Button
EX158BR  Yes
SPDT
No
DIN, Surface Mount
Phase Reversal, Phase Loss
No
Fixed
380 VAC, 50 Hz 380 VAC, 50 Hz Add to Quote Button
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