The PR series motor protection relay combines monitoring, control, protection, communication, and other functions for low-voltage motor protection. In the event of overcurrent, undercurrent, phase failure, overvoltage, Undervoltage, or three-phase inequality, the PR series motor protection relay will trigger an alarm or protective control. It is available for various applications such as pumping, air handling, chiller systems, and bulk material handling.
Blue Jay is a reputable manufacturer and supplier specializing in professional motor protection relays, offering top-quality products and technical solutions. We are dedicated to becoming the premier supplier of three-phase motor protection relays. As for the Blue Jay motor protection relay line, we provide a wide range of options, from simple to advanced functions. Our motor protection products enable real-time monitoring of various electrical energy parameters in low-voltage motor circuits and feeders at industrial sites. For more information about the distinctions and features of our electronic motor protection relays, contact us directly.
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The PR series motor protection relay combines monitoring, control, protection, communication, and other functions for low-voltage motor protection. In the event of overcurrent, undercurrent, phase failure, overvoltage, Undervoltage, or three-phase inequality, the PR series motor protection relay will trigger an alarm or protective control. It is available for various applications such as pumping, air handling, chiller systems, and bulk material handling.
Blue Jay is a reputable manufacturer and supplier specializing in professional motor protection relays, offering top-quality products and technical solutions. We are dedicated to becoming the premier supplier of three-phase motor protection relays. As for the Blue Jay motor protection relay line, we provide a wide range of options, from simple to advanced functions. Our motor protection products enable real-time monitoring of various electrical energy parameters in low-voltage motor circuits and feeders at industrial sites. For more information about the distinctions and features of our electronic motor protection relays, contact us directly.
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PR 260 Electric Motor Protection Relay
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PR 240 Intelligent Motor Management Relay
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PR200 Digital Motor Protection Relay
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PR600 Power Line Protection Relay
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PR-80L Power Line Protection Relay
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CT304 Motor Protection Current Transformer
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CT305 Motor protection external CT
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CT306 Motor protection external CT
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ZCT-Z6-065 Zero Sequence Current Transformer
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Feature of Motor Protection Relay
Specification of Motor Protection Relay
| Basic Technical Parameter | Value |
| Auxiliary Power | 85-265Vac/dc |
| Power consumption | <4VA |
| Insulation resistance | >100MΩ |
| Relays | 5A/250VAC, 5A/30VDC (NO contact) |
| Motor rated voltage | AC220V / AC380V / AC660V |
| Motor rated current | 0.5-200A use internal CT |
| Leakage current sensor | 0-1A |
| Impulse withstand voltage | 4 kV |
| Start mode - Protection Only | All PR Series has this function |
| Metering Function | Three phase amp |
| Digital Output | Regular 2DO, max 6DO |
| Analog Output | 4-20mA |
| Display | LED/LCD |
| Protection Function | Value(IEEE / ANSI C37.2) |
| Overload | 49, 51 |
| Over Current - Jam in starting | 51R |
| Phase loss | 47 |
| Current imbalance | 46 |
