Adjustable Over and Under Voltage Protector for 3 Phase 4 Wire AC Systems

Voltage Protective Device with Fault Record Query Function: The voltage protective device mentioned supports a fault record query function, allowing users to conveniently analyze and review the last 5 fault events to identify the cause of faults.

High-Quality Material: The voltage protector shell is constructed from flame retardant PC material that is highly resistant to high temperatures. It is equipped with a built-in magnetic retention relay for stable and sensitive response, making it durable and able to withstand high current surges.

Specification Details: The item type is a Voltage Protector with the model number JMRD-P1. It is made of PC Flame Retardant material and has an input circuit of 3P+NR. The rated voltage is AC230 400V 50/60HZ with a measurement error of 1%. The rated current is 80A (resistive load) with an overvoltage range of 80-300V adjustable and an undervoltage range of 80-300V adjustable. The unbalance range is adjustable from 1-50%, with action delay, reset delay, and start delay all adjustable from 0.1-600S. The reset mode can be set to automatic or manual, and it meets applicable standards JGJ242-2011 and JBT12762-2015. The working conditions are -25-65℃, ≤85%RH, non-condensing, and installation requires a 35mm DIN Rail.

Ease of Use: The Voltage Protector is designed for easy installation with a standard modular structure and 35mm guide rail. It features ultra-wide voltage design and is compatible with a rated voltage of 230 to 400VAC universal, 50/60HZ (P-N).

Multiple Protection Features: This electric protector provides intelligent startup detection, overvoltage protection, undervoltage protection, phase loss protection, zero break protection, phase error protection, and voltage imbalance protection. It also supports fault record query for the last 5 fault events, making it easy to identify and address issues.

Adjustable Settings: The appliance protector allows for adjustable overvoltage and undervoltage thresholds, as well as independent adjustable delay times for overvoltage and undervoltage. Action values, recovery values, action delays, unbalanced action values, automatic reset delays, and startup delays can all be customized according to specific needs.

Automatic Resetting: With real-time voltage monitoring, fault detection, and automatic delay reset after the voltage returns to normal, this protector ensures stable and sensitive response, while also being resistant to high current surges. It can be set to manual reset mode when necessary to prevent device damage.

Wide Applications: The flame retardant PC material of the voltage protector makes it suitable for use in various equipment and devices that require protection from undervoltage and overvoltage. Applications include air compressors, electric motors, pumps, fans, air conditioning systems, blowers, elevators, cranes, refrigeration equipment, laser equipment, industrial control systems, and more.

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