Motor protection device is researched and developed to protect and control motor with high performance digital microprocessor technology, based on the research of similar products abroad and summary of MCC electrical system home.The motor protection device possess international advanced protection function, support professional way of motor control and provide accurate monitoring function, can run for a variety of motor control, monitoring, protection, interlock, measure, remote communication, remote communication, remote control, fault information management.
The motor protection device is a kind of multi-functional protector, greatly improve the design and the production efficiency and reduces the user site debugging and maintenance cost,, so as to improve the scene of the scientific and effective protection of the production process, the measurement and control unit, which is protected by intellectual property and software copyright.
Motor protection device adopt modular design structure, with those advantages of small in size, compact structure, guide rail or the self-contained bolt installation, suitable for various kinds of stationary and drawer cabinet where can be installed directly to use.Apply to three-phase asynchronous motor and motor protection control, motor production device is the best ideal products for many fields such as chemical, petroleum, electric power, mining, coal, metallurgy, municipal, paper making, the nuclear industry involving three-phase motor protection.

Working power supply	AC85-265V  50Hz
Main circuit power supply voltage	≤AC1160V
Control relay output	Passive contact 5A
Installation	Standard 35 mm guide installation, screws fixation
Applied range	Three-phase industrial equipment
Over voltage protection	voltage values setting		110-465 available
Low voltage protection	voltage values setting(V)		0-380 available
Overload (flow) protection	Current Setting A		A can be set in the specified current
	Actuation time S		1-255 available
Underload (flow) protection	Current Setting A		A can be set in the specified current
	Actuation time S		0-255可设
Open-phase protection	Percentage setting		1-100 available
ground protection	Current setting of electric leakage(mA)		500-5000mA available
	Programmable Control of the action
Motor Shaft Lock Protection	Magnification setting				1-9 times available
Start timeout protection	Start delay time setting				1-255 available
Fault resetting	hand reset				0
	automatic reset				0-255 available
20 mA Corresponding current	Set 20 mA with a corresponding to the current value of the output
Mailing address	network communication identification			1-255 available
Starting mode	Ways			Direct starting, star triangle starting, positive and negative starting, direct start, positive and negative bypass circuit starting, reduction voltage starting
Relay packing time	Packing time			1-255s available
Programmable relay	Start time and leakage time, fault tripping, on time and alarm time
Programming relay output time	Output time S	1-255s available
Overload control protection	When the motor overload carrying, control protection device track and calculate overload current according to the heat capacity (Q) of the motor thermal.  In thermal overload protection fully considered in the calculation of the motor stator and rotor temperature rise, meanwhile considering the unbalanced three-phase affect motor heatin. When the current increases to control protection value, giving alarm prompt action to trip value time.
Underload (flow) protection	when protected current through less than the setting value, action set alarm, and give the alarm or stop work.
Motor Shaft Lock Protection	To prevent the occurrence of severe motor running blockage or motor overload operation while the multiple of current reach setting current, give signal alarm or stop
Unbalance protection of three-phase current	Through three phase current or three-phase voltage according to the ratio of the minimum line current and maximum line current alarms when the set values for the reach or exceed hint to trip condition
Open-phase protection	When any phase in three phase current in the current ratio is greater than the imbalance Angle value is defined as the phase failure fault
Over voltage protection	Monitor three-phase voltage values, any phase voltage higher than the set value alarm prompt in action time
Low voltage protection	Monitor three-phase voltage values, any phase voltage lower than the set value alarm prompt in action time
ground protection	Through external zero sequence current transformer measurement, according to  the current of motor phase the conductor (PE) or (PEN) whether to start the leakage fault protection function, when greater than the setting values of the leakage protection device, protective device sends an alarm to trip time
Anti-interference protection	monitor continuously the voltage of the equipment, when the system voltage instantaneous fall then recover, motor can restart
Start timeout protection	Continuously monitor the starting current delay time, when the current is greater than the delay time to complete the boot device, three phase current was 1.2 times greater than the set current start timeout tripping protection action
Reverse protection	When detect three-phase voltage phase sequence is not correct, stop and can not start the motor
External fault protection	When check the external switch input signal and the default state of switch input  is inconsistent, the device can not start

Terminal number	Instructions
X1.1…2	Working power AC/DC220V input
X1.3…5	Three-phase voltage input
X1.6	N neutral input
X1.7…8	control relay J1
X1.9…10	control relay J2
X1.10…11	control relay J3
X1.12…13	Output relay protection J4 closed
X1.13…14	Output relay protection J4 opened
X1.15…16	Programmable output relay J5
X1.17…18	zero sequence current input
X1.19…20	reserved output
X1.21…22	（X1.21 For +  X1.22 For -） 4-20mA output
X1.23	SDS stop input
X1.24	DCS start 1 input
X1.25	DCS start 2 input
X1.26，27，28	Equipment feedback input
X1.29	DC24V output, state quantity driven
X1.30…31	（X1.30 For A   X1.31 For B）RS485 communication interface
X1.32	Apparatus ground

product name	product model	basic function		remarks
Motor protector	CHTK100H		Economical electric motor protector Split type and one-piece type	Guide rail installation or open hole installation 91mm * 44mm
	CHTK310H		Conventional intelligent electric motor protector Split type and one-piece type
	CHTK500 enough functional motor protector with start button		Blocking rotation, phase breaking, overcurrent, three-phase current imbalance, overvoltage, undervoltage, short circuit, leakage and other fault protection, three-phase current measurement, display the working voltage	Open hole is 92mm * 66mm
	CHTK600H high-end motor protector		Overcurrent, blocking, phase breaking, three-phase current Unbalanced overvoltage, undervoltage, short circuit, leakage (optional) and other fault protection, phase current, phase voltage, line voltage frequency, active power, reactive power, power factor measurement multi-channel switch quantity signal	Open hole is 77mm * 55mm
	CHTK800H high-end motor protector			Open hole is 90mm * 90mm