Ensure reliable protection for your industrial three-phase power systems with this advanced Three-Phase Voltage Protector. Designed for AC 50/60Hz applications with rated voltages up to 460V, this device effectively monitors and safeguards against common electrical faults including overvoltage, undervoltage, phase loss, reverse phase sequence, and three-phase voltage imbalance. It provides essential relay protection to maintain the stability and safety of your equipment in demanding industrial environments. Key Features: · Comprehensive Fault Detection: Monitors multiple voltage levels such as 220V, 380V, 440V, and 460V, offering protection against phase loss, reverse phase, overvoltage, undervoltage, and voltage imbalance to prevent equipment damage. · Wide Industrial Application: Ideal for use in air compressors, electric motors, distribution boxes, pumps, oil pumps, central air conditioning units, electric control boxes, power distribution cabinets, cranes, elevators, and other industrial machinery requiring reliable voltage protection. · Durable and Flexible Installation: Features a rail-type protector base with two M4 screw holes for direct mounting or HT35 rail installation. Accessories on the product base can be removed for flexible installation options. · Clear Status Indicators: Equipped with five LED indicators to display operational status and fault conditions including normal operation, phase loss, reverse phase, overvoltage, and undervoltage, enabling quick and easy diagnostics. · Reliable Electrical Connections: Supports main circuit connections using insulated copper wires with a cross-sectional area of 1.0 to 2.5mm². Single-strand copper wires can be directly inserted into terminals, with needle-type terminals recommended for secure connections. · Compliance and Safety Standards: Manufactured in accordance with GB14048.5-2001 and IEC60947-1:1999 standards, ensuring high safety and performance reliability. · Robust Electrical Specifications: Rated voltage of 380VAC, contact form includes two normally open and two normally closed contacts that are electrically inseparable. Contact capacity supports 250VAC at 6A and 30VDC at 3A, with a conventional heating current of 8A and low power consumption ≤10VA. · Suitable Operating Conditions: Designed to operate reliably within ambient temperatures from -10°C to +55°C and relative humidity of 45% to 85% RH. Specifications: · Size: 79 x 23 x 79 mm (3.11 x 0.91 x 3.11 in) · Rated Voltage: 380VAC · Contact Form: Two Normally Open, Two Normally Closed (Electrically Inseparable) · Use Category: AC15, DC13 · Contact Capacity: 250VAC 6A, 30VDC 3A · Conventional Heating Current: 8A · Power Consumption: ≤10VA · Weight: 150g (5.29oz) · Ambient Temperature: -10°C to +55°C · Relative Humidity: 45% to 85% RH Package Includes: · 1 x Three-Phase Voltage Protector Note: This protector is designed to be installed on the power input side of three-phase power supplies and must not be used on the output side of variable frequency drives. This Three-Phase Voltage Protector is an indispensable device for maintaining the normal operating voltage and protecting critical industrial equipment from electrical faults, ensuring enhanced safety and longevity of your machinery.