Selec 900VPR-2-280/600V-CE, Voltage Protection Relay


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 various voltage and frequency-related concerns. Its measuring parameters encompass Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, Phase Failure, and Phase Sequence, providing a comprehensive safeguarding solution.

The relay is compatible with both 3-phase 3-wire and 3-phase 4-wire electrical connections. Its display features a 3-digit Liquid Crystal Display (LCD) without backlight, providing clear and concise information.

The relay offers customizable time ranges to ensure precise and timely protective actions. Trip Time Delay can be set within the range of 0 to 99.9 seconds, Power ON Delay from 2 to 99.9 seconds, Delay ON Release spanning 0 to 99.9 seconds, and the Response Time is impressively less than 200 milliseconds.

Precision is a defining attribute, especially in trip voltage measurements, where the relay exhibits an accuracy of ±1% of the set value. Two changeover output contacts (SPDT) provide versatility for interfacing with external systems. The normally closed (NC) contact is rated at 3A for 250V AC, while the normally open (NO) contact boasts a robust 5A rating under the same voltage conditions.

Operating voltage spans from 280V to 520V AC (line-to-line) and 160V to 300V AC (line-to-neutral), accommodating various electrical environments. With a compact size of 35mm and DIN Rail Mounting, installation becomes straightforward.


Measuring Parameter Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, Phase Failure, Phase Sequence
Electrical Connection 3Ø-3W, 3Ø-4W
Display 3 digits Liquid Crystal Display without backlight
Time Ranges Trip Time Delay : 0-99.9 sec,
Power ON Delay : 2-99.9 sec,
Delay ON Release : 0-99.9sec,
Response Time : < 200ms
Accuracy Trip Voltage: ±1% of Set Value
Output Contact 2 x 1C/O (SPDT)
Output Rating NC: 3A@250V AC, NO: 5A@250V AC (Res)
Operating Voltage 280 to 520V AC (L-L),
160 to 300V AC (L-N)
Size 35mm
Mounting Type DIN Rail Mount
Certification CE & UL

Additional information

Weight 1 kg

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