Monitors Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, Phase Failure and Phase Sequence ! True RMS Measurement ! Power ON Delay, Trip Time Delay and Recovery Time Delay ! Adjustable Switching Hysteresis ! Two Separate Alarm Relays ! …

Selec 900VPR-BL-U is a 3Ø Voltage Protection Relay that monitors Over/Under Voltage, Frequency, Phase asymmetry, Phase failure, Sequence, Neutral loss. LCD Display With Backlight. CE/RoHS Certified.

Selec 900VPR-2-300/600V is a Reliable 3Ø-Voltage Protection Relay with UL certification. Monitors voltage, frequency, phase, and protects from over/under conditions. Suitable for 3Ø-3W, 3Ø-4W electric.

900VPR-2-280/600V-CE is a highly capable Digital Voltage Protection Relay, designed to ensure the safety and reliability of electrical systems. Classified as a Digital Voltage Protection Relay, it is equipped with a comprehensive set of features to address …

View and Download Selec 900VPR-U operating instructions online. 900VPR-U switch pdf manual download.

SELEC 900VPR DIGITAL VOLTAGE PROTECTION RELAY Monitoring relay Features: Under voltage/Over voltage protection for 3-phase systems True RMS measurement Time functions: Power ON/Trip time/Recovery time delay (0-99.9 s) Additional features: Alarm display; Locking; Reset 3-digit LCD with backlight Built-in current transformer Adjustable switching hysteresis Alarm output: 2 x NO/NC Supply voltage ...

900VPR-2-300/600V Digital Voltage Protection Relay is a versatile solution designed for comprehensive electrical system protection. It addresses parameters such as Under Voltage, Over Voltage, Under Frequency, Over Frequency, …

1Ø - 2 Wire, 3Ø - 3 Wire, 3Ø - 4 Wire input ! Monitors Under voltage, Over voltage, Under frequency, Over frequency, Phase asymmetry, Phase failure, Phase sequence and Neutral loss in 3Ø - 4 Wire system ! True RMS measurement ! Power ON delay, Trip time delay and Recovery time delay ! Adjustable switching hysteresis ! Two Alarm relays with …

This document provides operating instructions for a 3-phase voltage and frequency relay. It lists specifications for the relay such as adjustable settings for voltage, frequency, hysteresis, and time delays. It also provides safety precautions, dimensions, wiring guidelines, LED indication charts, and terminal connection diagrams.

The 3Ø-digital voltage protection relay 900VPR-2-280/520V-CU from Selec with operating voltage 280-520V AC (L-L), 160-300V AC (L-N) with an adjustable trip delay time from 0 to 99.9 seconds. The voltage protection relay 900VPR-2-280/520V-CU is simple to install with its DIN rail mounting and connection via the screw-type terminals.