Features 1、Mainly used for AC 50/60Hz, rated voltage 460V or less, industrial three-phase , 380V, 440V, 460V and other voltage levels of various fault detection, and provide relay protection for the voltage of the three-phase input power supply is too high, the 2、Products are widely used in air compressors, electric motors, distribution boxes, pumps, oil pumps, central air conditioning units, electric control boxes, power distribution cabinets, cranes, etc., such as central air conditioning compressor protection, 3、The protector base adopts rail type and has two M4 screw hole structures, which can be directly installed separately or HT35 rail mounting (if direct installation is required, the accessories on both sides of the bottom of the product should be pushed ou 4、The error is indicated by 5 indicators: normal, phase loss (voltage three-phase unbalance), reverse phase, overvoltage, undervoltage. 5、The connecting wire of the main circuit: the insulating copper wire has a carrying area of 1.0~2.5mm. The single strand of copper wire can be directly inserted into the terminal;a needle type terminal must be added to the wire to ensure reliable connecti Specification Features: This product complies with GB14048.5-2001 eqv IEC60947-1:1999 standard. The protector base adopts rail type and has two M4 screw hole structures, which can be directly installed separately or HT35 rail mounting (if direct installation is required, the accessories on both sides of the bottom of the product should be pushed out hard). The connecting wire of the main circuit: the insulating copper wire has a carrying area of 1.0~2.5mm. The single strand of copper wire can be directly inserted into the terminal;a needle type terminal must be added to the wire to ensure reliable connection. Specification: Size:79 X 23 X 79mm / 3.11 X 0.91 X 3.11in 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 ~ +55 ° C Relative Humidity: 45%~85% RH Package List: 1 x Protector Note: This product is generally sampled on the power side of the three-phase power supply and must not be installed on the output side of the variable frequency current! Package List