0172 MPCB Motor Protection Switch 100A CE/ISO Jchko

• Customization: Available
• Nominal Voltage: AC380V
• Level of Protection: IP65
• Model NO.: SJKCPS-125
• Operating Temperature: -25ºC~+60ºC
• Mechanical Life: More Than 100,000 Times
• Speed: Fast Trip
• Arc-Extinguishing Medium: Air & Magnetic Blowout
• Structure: Modular Cps
• Poles Number: 3.4
• Type: Control and Protection Switch
• Function: Short-Circuit.Overload Phase Failure .Earth Leakag
• Transport Package: Box
• Trademark: JCHKO
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 5000 Pieces/Week

Product Description

Product Description

 MPCB  Motor Protection Switch 100A CE/ISO  JCHKO 

    The SJKCPS series control and protection switches are mainly used in power systems with AC 50Hz (60Hz), rated voltage up to 380V, and current ranging from 0.16A to 100A. They are designed to make, carry, and break currents under normal conditions including specified overload conditions, and also capable of making, carrying, and breaking currents under abnormal conditions (such as short-circuit currents).

     Due to the integrated control and protection functions, modular structure, small size, high protection level against environmental pollution, low flying arc, long arc life, high continuous operation and reliability, convenient installation, operation and maintenance of SJKCPS series control and protection switches, they are particularly suitable for electrical control systems such as pumps, fans, air conditioning, fire protection and lighting in modern buildings, motor control and protection in metallurgy, coal mines, steel, petrochemical, port, ship and railway fields, motor control centers (MCC) especially intelligent electrical control systems or MCC with high breaking capacity (such as distribution control systems requiring ICS to reach 80KA), single motor control and protection in factories or workshops, and remote control lighting systems.

     SJKCPSG Isolated Products are suitable for power isolation in distribution circuits and motor circuits, meeting both main circuit isolation requirements and control circuit isolation requirements. Their status can be clearly displayed through the ON/OFF position indicator (operation knob).

Technical Parameters
Frame Current IthA	Main Rated Current InA	Overload Electronic Trip Rated Current Ie (A)	Overload Electronic Trip Current Adjustment Range	80V Control Power Range (kW)	Utilization Category	Rated Voltage (V)	Rated Frequency (Hz)
45	SJKCPS-16	1	0.4~1	0.12~0.33	AC-42 AC-43 AC-44	380(400)	50(60)
		3	1.2~3	0.5~1.5
		6	2.4~6	1.5~3
		10	4~10	2.5~5
		16	6.4~16	4.5~7.5
	SJKCPS-32	25	10~25	5.5~11
		32	13~32	11~15
	SJKCPS-45	45	18~45	15~22
125	SJKCPS-63	63	25~63	18.5~30
	SJKCPS-80	80	32~80	30~37
	SJKCPS-100	100	40~100	37~45
	SJKCPS-125	125	50~125	40~55

Operating Characteristics for Motor Control (Utilization Categories: AC-42, AC-43, AC-44)
Motor Control Operating Characteristics
No.	Multiple of rated current (In)			Conventional Time Related to Ie (h)			Reference Temperature
1	1.0			No tripping within 2h			+20℃
2	1.2			Tripping within 2h
3	1.5			Tripping within 4min
4	7.2			Tripping within 4-10s
Thermal Trip Characteristics for Power Distribution Loads (Utilization Categories: AC-40, AC-41) Power Distribution Characteristics
Utilization Category		Multiples of Set Current (Ir1)			Conventional Time Related to Ie (h)			Reference Temperature
		A1)	B2)		le<63A	le≥63A
AC-40		1.05	1.3		1	2		+30℃
AC-41
Notes:
A: When applying A times set current to all poles, no tripping occurs within conventional time. B: When subsequently applying B times set current, tripping shall occur within conventional

Product Utilization Categories and Typical Applications
Circuit	Utilization Category		Typical Applications
Main Circuit	AC-20A		Connecting and disconnecting circuits without conditions
	AC-40		Power distribution circuits, including mixed resistive and inductive loads with reactors
	AC-41		Non-inductive or slightly inductive loads, resistance furnaces
	AC-42		Slip-ring motors: starting, breaking
	AC-43		Squirrel-cage induction motors: starting, breaking during operation
	AC-44		Squirrel-cage induction motors: starting, plugging/reversing, jogging
	AC-45a		Switching discharge lamps
	AC-45b		Switching incandescent lamps
Circuit	Utilization Category	Typical Applications
Auxiliary Circuit	AC-15	Controlling AC electromagnetic loads
	AC-20A	Connecting and disconnecting circuits without conditions
	AC-21A	Switching resistive loads, including appropriate overloads
	DC-13	Controlling DC electromagnetic loads
	DC-20A	Connecting and disconnecting circuits without conditions
	DC-21A	Switching resistive loads, including appropriate overloads

SJKCPS System vs Discrete Components Comparison
No.	Technical Performance			Discrete Components	SJKCPS
1	Breaking Capacity			10-50KA	35-80kA
2	Mechanical Life			500-1000 million operations	500-1000 million operations
3	Electrical Life			10-15 million operations	10-15 million operations
4	Current Setting Adjustment			Curve	Linear
5	Circuit Matching Consistency			Poor	Good
6	Current Limiting Capability			Low	High
7	Self-protection Features			None	Available
8	Continuous Operation Characteristics			None	Available
Current and Cable Specifications
Operating Current Range (A)				Conductor Cross-section (mm²)
0<l<8				1.5
8<l<12				2.5
12<I<20				4
20<I<25				6
25<I<50				10
50<l<63				16
63<I<100				25

Common Fault Problems and Troubleshooting Methods
No.	Fault Phenomenon	Fault Cause	Solution
1	Power on, SJKCPS not working	1. Check if operation knob is in "AUTO" position 2. Verify A1, A2 control power supply	Turn knob to "AUTO" position Connect control power correctly
2	Power on, SJKCPS coil burned	Check if A1, A2 control power is wrongly connected or short-circuited	Replace SJKCPS coil or check control circuit
3	SJKCPS switch not self-locking	1. Auxiliary contacts 13, 14 2. Check if A1, A2 control voltage too low	If contacts don't conduct when closed, replace accessory or check control circuit
4	SJKCPS closed but motor not working	Check 3-phase power supply	Connect correct 3-phase power
5	Motor starts but SJKCPS trips	1. Check if 05, 08 short-circuit contacts closed 2. Verify if 95, 98 overload contacts conduct 3. Check if both fault contacts (05,08 and 95,98) closed	1. Short circuit in load circuit 2. Verify load matches SJKCPS rating
6	Load runs for while then SJKCPS trips	SJKCPS intelligent trip unit protection	1. Run SJKCPS without load 2. Press shift key for fault query 3. LED shows fault reason (last 3 faults) 4. Troubleshoot based on displayed fault type
7	Motor burned but SJKCPS didn't trip	Incorrect parameter settings (Ie etc.)	Reset SJKCPS parameters according to actual load

Company Profile

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