PLS120A - PLS Series

Series: PLS
Questions? Contact Littelfuse Support
External overview image
Roll Over to Zoom
The PLS Series is a low cost phase sensitive control that provides an isolated contact closure when the proper A-B-C phase sequence is applied. Protects sensitive 3-phase equipment and equipment operators from reverse rotation. Designed to be compatible with motor overloads or other 3-phase equipment protection devices. Protection for equipment control centers where frequent reconnection or electrical code makes reverse rotation protection essential. Examples include: mobile refrigerated containers, construction equipment, hoists, pumps, conveyors, elevators and escalators.

The internal relay and LED are energized when the phase sequence is correct. The output relay will not energize if the phases are reversed. Reset is automatic upon correction of the fault.

Property (Mouseover for details) Value
Input Voltage (V) 95 - 135 Vac
Input Type 3-phase delta or WYE with no connection to neutral
Input AC Line Frequency (Hz) 50 / 60
Input Phase Sequence A; B; C
Maximum Output Voltage (V) 250
Output Type Electromechanical relay energized when the phase sequence is correct
Output Form Isolated SPDT
Output Load Rating (VA) 120 and 240 Vac: 10 A resistive @ 240 Vac; 380 and 480 Vac: 8 A resistive @ 240 Vac
Drop_out Response Time (ms) ≤50
Pull-in Response Time (ms) ≤300
Isolation Voltage (V) ≥1500 Vrms input to output
Termination Type Octal 8-pin plug-in
Mounting Method Plug-in socket
Operating Temperature -40° to 55°C (-40° to 131°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Dimensions 3.2 H x 2.39 W x 1.78 D in. (81.3 x 60.7 x 45.2 mm)
Weight (lbs/g) 0 Kg
Check Stock Yes
To request product environmental information, please complete the Product Environmental Information Request Form.