PLS Series - Voltage Monitor

External overview image
Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.


Operation
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.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Termination TypeMounting MethodDimensionsWeight (lbs/g)Input AC Line Frequency (Hz)Input Phase SequenceInput TypeIsolation Voltage (V)Output Load Rating (VA)Output TypeMax. Output
Voltage (V)
Pull-in Response Time (ms)Storage Temperature (F/C)StockCompare
PLS120A95 - 135 VacIsolated SPDTOctal 8-pin plug-inPlug-in socket3.2 H x 2.39 W x 1.78 D in. (81.3 x 60.7 x 45.2 mm)0 Kg50 / 60A; B; C3-phase delta or WYE with no connection to neutral≥1500 Vrms input to output120 and 240 Vac: 10 A resistive @ 240 Vac; 380 and 480 Vac: 8 A resistive @ 240 VacElectromechanical relay energized when the phase sequence is correct250≤300-40° to 85°C (-40° to 185°F)Check
PLS240A175 - 255 VacIsolated SPDTOctal 8-pin plug-inPlug-in socket3.2 H x 2.39 W x 1.78 D in. (81.3 x 60.7 x 45.2 mm)0 Kg50 / 60A; B; C3-phase delta or WYE with no connection to neutral≥1500 Vrms input to output120 and 240 Vac: 10 A resistive @ 240 Vac; 380 and 480 Vac: 8 A resistive @ 240 VacElectromechanical relay energized when the phase sequence is correct250≤300-40° to 85°C (-40° to 185°F)Check
PLS480A380 - 500 VacIsolated SPDTOctal 8-pin plug-inPlug-in socket3.2 H x 2.39 W x 1.78 D in. (81.3 x 60.7 x 45.2 mm)0 Kg50 / 60A; B; C3-phase delta or WYE with no connection to neutral≥1500 Vrms input to output120 and 240 Vac: 10 A resistive @ 240 Vac; 380 and 480 Vac: 8 A resistive @ 240 VacElectromechanical relay energized when the phase sequence is correct250≤300-40° to 85°C (-40° to 185°F)Check
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
PLS240A REVERSE PHASE RELAY RoHS No 09/28/2018 PbFree No 09/28/2018 CoC_RoHS9_PLS240A_05-11-2021 REACH197_Declaration_(Contain)_PLS240A_05-11-2021 Yes
09/28/2018
Contains
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.