Protection Relays and Controls Catalog
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PLR380A
3 PHASE LINE MONITOR | Series: PLRThe PLR Series provides a cost effective means of preventing 3-phase motor startup during adverse voltage conditions. Proper A-B-C sequence must occur in order for the PLR’s output contacts to energize. In addition, the relay will not energize when an undervoltage or phase loss condition is present. The PLR protects a motor against undervoltage operation. The adjustment knob sets the undervoltage trip point.
Operation
The output relay is energized and the LED glows when all voltages are acceptable and the phase sequence is correct. Undervoltage must be sensed for a continuous dropout delay period before the relay de-energizes. Reset is automatic upon correction of the fault condition. The output relay will not energize if a fault condition is sensed as power is applied.
| Property | Value |
|---|---|
Input Voltage (V) | 340 - 450 Vac |
Output Form | SPDT |
Termination Type | Octal 8-pin plug-in |
Dimensions | 3.2 H x 2.39 W x 1.78 D in. (81.3 x 60.7 x 45.2 mm) |
Weight (kg) | 0 Kg (kilogram) |
Input AC Line Frequency (Hz) | 50 / 60 |
Input Phase Sequence | A; B; C |
Input Type | 3-phase delta or WYE with no connection to neutral |
Input Voltage Maximum (V) | 480 |
Output Load Rating (VA) | 5 A resistive @ 240 Vac; 1/4 hp @ 120 Vac |
Output Type | Electromechanical relay energized when all voltages are acceptable |
Maximum Output Voltage (V) | 250 |
Pull-in Response Time (ms) | ≤400; Hysterisis≅2% |
Surge Protection | IEEE C62.41-1991 Level B |
Undervoltage Trip Voltage (%) | 310 - 410 Vac adjustable |
Drop out Response Time | ≤100; Hysterisis: ≅2% |
Isolation Voltage | ≥1500 Vrms input to output |
Mounting Method | Plug-in socket rated 600V |
Operating Temperature Max (°C) | 55 |
Operating Temperature Maximum Fahrenheit | 131 |
Operating Temperature Minimum Celsius | 0 |
Operating Temperature Minimum Fahrenheit | 32 |
Storage Temperature Maximum Celsius | 85 |
Storage Temperature Maximum Fahrenheit | 185 |
Storage Temperature Minimum Celsius | -40 |
Storage Temperature Minimum Fahrenheit | -40 |
PLR380A Resources
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| Part Number | Part Description | RoHS | Pb-Free | RoHS (2015/863/EU) Certificate | REACH (SVHC's) Declaration | REACH (SVHC's) | Halogen Free | IPC-Material Declaration | |
|---|---|---|---|---|---|---|---|---|---|
| PLR380A | 3 PHASE LINE MONITOR | View More |
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