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© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-062716 Protection Relays Voltage Monitoring Relays www.littelfuse.com/pls PLS SERIES
Description
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. Features & Benefits FEATURES BENEFITS Continuous monitoring Cost effective protection of 3-phase equipment and operators from reverse rotation. Meets reverse rotation protection code requirements. Universal motor compatibility Designed to be compatible with motor overloads or other 3-phase equipment protection devices Industry standard 8-pin octal plug connection Eliminates need for special connectors Factory calibrated Easy to install. No field adjustment needed LED indicator Provides visual indication of relay status Accessories BZ1 Front Panel Mount Kit Provides an easy method of through-the-panel mounting of 8- or 11-pin plug-in timers, flashers, and other controls. Octal 8-pin Socket 8-pin 35mm DIN rail or surface mount. Rated at 10A @ 6 00VAC. Surface mounted with two #6 screws or snaps onto a 35 mm DIN rail. LPSM003ZXID (Indicating), LPSM003Z (Non-indicating) Fuse Holders Littelfuse POWR-SAFE Dead Front holders provide optimum protection to personnel for Class CC and Midget-Style fuses. 600 VAC/DC 0KLK002.T Midget Fuse (2 Amp) 10 x 38 fast acting, high-interrupting capacity, current-limiting type fuse. 600 Vac/500 Vdc C103PM (AL) DIN Rail 35 mm aluminum DIN rail available in a 36 in. (91 .4 cm) length.
Ordering Information
If you don’t find the part you need, call us for a custom product 800-843-8848 Wiring Diagram F = Fuses ØA = Phase A = L1 ØB = Phase B = L2 ØC = Phase C = L3 NO = Normally Open NC = Normally Closed Relay contacts are isolated 2A fast acting fuses recommended for safety (not required). 8-PIN
© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-062716 Protection Relays Voltage Monitoring Relays www.littelfuse.com/pls PLS SERIES Specifications Line Voltage Type 3-phase delta or wye with no connection to neutral Nominal Minimum Maximum Voltage Voltage Voltage 120VAC 95VAC 135VAC 208/240VAC 175VAC 255VAC 380/415VAC 310VAC 430VAC 440/480VAC 380VAC 500VAC AC Line Frequency 50/60Hz Phase Sequence ABC Response Times Pull-in ≤ 300ms Drop-out ≤ 50ms Output Type Electromechanical relay, energized when the phase sequence is correct Form Isolated SPDT Rating 120 & 240VAC 10A resistive @ 240VAC 380 & 480VAC 8A resistive @ 240VAC Maximum Voltage 250VAC Protection Isolation Voltage 120 & 240VAC ≥ 1500V RMS input to output 380 & 480VAC ≥ 2500V RMS input to output Mechanical Mounting* Plug-in socket Dimensions H 81.3 mm (3.2”); W 60.7 mm (2.39”); D 45.2 mm (1.78”) Termination Octal 8-pin plug-in Environmental Operating/Storage Temperature -40°to 55°C / -40° to 85°C Weight ≅ 6 oz (170 g) *CAUTION: Select an octal socket rated for 600VAC operation.