Transmission Equipment Co., Ltd. Shanghai play North Korea 

 Sales Hotline: 021-60525128 / 13816998130 (mobile) 

 Fax: 021-60937436 

 Business QQ: 1848795191 

 E-mail: 1848795191@qq.com 

 Contact: Miss Li 

 Swing towards the transmission equipment, for your dedicated service! Adequate inventory, friendly service, affordable and reasonable price is your long-term partner. Your choice from me here. . . 


 Product Overview 

 GMR Series multi-function power protection (also known as three-phase power supply monitor, phase sequence protection, over voltage protection, etc.) mainly for the exchange of 50/60Hz, rated voltage 460V below, industrial three-phase 220V, 380V, 440V, 460V voltage level such as the various fault detection, on the three-phase input power supply voltage is too high, low voltage, phase, reverse phase (phase sequence), to provide three-phase voltage unbalance protection are widely used in air presses, motors, power distribution boxes, pumps, fuel pumps, central air conditioning units, electrical control boxes, distribution cabinets, cranes, etc., such as central air-conditioning compressor protection, monitoring of various power lifts, water pump, oil pump anti-phase, reverse phase protection, maintenance of industrial equipment operating in the normal operating voltage equipment indispensable protection products. 

 This product complies with GB14085.5-2001 eqv IEC60947-1: 1999 standard. 

 Warning! This product is generally a three-phase power supply side of the sample, shall not be installed in the inverter current output side! 
 Structural features 

 1) Installation: The base is made of rail protectors, equipped with two M4 screw structure, direct and independent installation or HT35 rail mounting. 

 2) light: the five lights are to indicate: normal phase (phase voltage imbalance), reverse phase, overvoltage, undervoltage. 

 3) Dimensions: 68mm × 30mm × 76mm. 

 4 Protection Features 

 1) The lack of protection: it means the protection circuit in the running state or running state, the occurrence of any one phase open phase failure, delay 2S action. 

 2) reverse protection: to prevent L1, L2, L3 connected three-phase fault of a phase sequence protection, delay 2S action. 

 3) voltage unbalance protection: three-phase voltage imbalance that will affect the safe operation of a circuit protection, phase unbalance ratio = × 100%> 10%, the protective delay 2S action. 

 4) Over voltage protection: it means the protection circuit voltage higher than the set value, delay 3 ~ 8S action to restore back to the difference of 6 ~ 20VAC. 

 5) voltage protection: it means the protection circuit voltage below the set value, delay 3 ~ 8S action to restore back to the difference of 3 ~ 20VAC. 

 5 Main technical data 

 1) Main circuit: 

 1) Rated voltage: 220VAC, 380VAC, 440VAC, 460VAC. 

 2) The main circuit cable: insulated copper wire, which set out an area of ??1.0 ~ 2.5mm. If the single strand copper wire into the terminal directly; the use of a soft line, you must add a wire needle lugs to ensure reliable connection. 

 2) The auxiliary circuit: 

 1) can not be separated with a electrical normally open and one normally closed contact. 

 2) Use categories: AC15, DC13 

 3) Contact capacity: 250VAC 2.5A, 30VDC 1.5A 

 4) Conventional thermal current: 5A 



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