High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
1 / 3
High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies

High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies

The Control and Protective Switching Device (CPS) integrates motor control and circuit protection in one compact unit, supporting 0.4-125A adjustable overload ranges for AC380-400V/50-60Hz systems. This CPS combines electronic trip functionality with utilization categories AC-42/43/44, enabling precise motor management for pumps, fans, and compressors. With 80V control power compatibility (0.12-55kW) and modular design, the SJKCPS series simplifies installation while providing reliable short-circuit and overload protection. Ideal for industrial automation, this control and protective switching device reduces wiring complexity and enhances system safety.

Send Inquiry

Product Description

Type Designation

Type Designation Key Diagram
Position Designation Description
1 Control and Protection Switching Device
2 Main Frame Current Rating (45, 125)
3 Breaking Capacity Code: C-Economic Type; Y-Standard Type; H-High Type
4 Load Type (Motor M / Power Distribution P)
5 Rated Current (1A ~ 125A)
6 Accessories (02, 06, 09) (unmarked if not present)
7 Coil Control Voltage (M: AC230V; Q: AC400V)
8 Basic Type (unmarked); F-Fire Protection Type (alarm only, no tripping)
9 G-Isolated Type (unmarked if not present)

Product Display

Motor Protection Switch CPS Structure Overview
Motor Protection Switch CPS Front Profile
Motor Protection Switch CPS Internal Layout
Motor Protection Switch CPS Modular Terminals

Technical Parameters

Frame Current Ith (A) Main Rated Current In (A) Overload Trip Rated Current Ie (A) Current Adjustment Range (A) 380V 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

Motor & Power Distribution Protection Curves

◇ Motor Protection Characteristic Curve
Motor Protection Characteristic Curve Diagram
◇ Power Distribution Protection Characteristic Curve
Power Distribution Protection Curve Diagram

Utilization Categories and Typical Applications

Circuit Type Utilization Category Typical Applications
Main Circuit AC-20A Connecting and disconnecting circuits without load 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
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

Operation Panel Diagram and Installation Dimensions

Panel Controls and Indicator Details
1. Control (Automatic or Manual) Position
In this state, the internal control coil contact of the SJKCPS switchgear is in the closed position, controlling circuit connection and disconnection via the coil circuit. This setting enables automated remote control.
2. Free Release Position
The position where both main contacts and electromagnetic coil control contacts are disconnected when functional protection modules trigger due to overload, short circuit, phase loss, or voltage issues.
3. Disconnection Position
The coil contact and the SJKCPS main contact are both maintained in an open/disconnected state for system safety.
4. Re-engagement Position
When the operating knob is rotated to this position following a trip event, the mechanism is cleared for routine resetting and re-closing.
Dimensional Blueprint and Mount Points

Frequently Asked Questions (FAQ)

What does the SJKCPS Control and Protection Switching Device do?
The SJKCPS integrates the functions of circuit breakers, contactors, overload relays, and isolators into a single modular unit, delivering complete circuit control, short-circuit, and thermal protection.
What is the difference between Fire Protection Type (F) and standard models?
The standard models trip and cut off the circuit when an overload or fault occurs. The Fire Protection Type (F) generates an alarm without tripping, ensuring uninterrupted critical power for life-safety systems.
How is the trip current adjusted on the SJKCPS unit?
The overload electronic trip unit features an adjustable current dial, enabling fine-tuning according to load requirements (e.g., from 0.4A to 1A up to 50A to 125A depending on frame selection).
How do I reset the switch after a trip occurs?
When a trip happens, the handle moves to the Free Release position. To reset the device, rotate the knob to the Re-engagement position to clear the latching mechanism before returning it to the operational state.
What control voltages are compatible with SJKCPS coils?
Standard models support AC 230V (Code: M) and AC 400V (Code: Q) coil control circuits, operating across standard 50Hz and 60Hz networks.

Related Products

High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies

High-Quality SJKCPS Control and Protective Switching device Suppliers, Companies
High-Quality SJKQ2 Dual Power Automatic Transfer Switch Factories, Company

High-Quality SJKQ2 Dual Power Automatic Transfer Switch Factories, Company
Wholesale SafeRing-12 Fully insulated inflatable ring switchgear with Insulation Protection Manufacturers, Companies

Wholesale SafeRing-12 Fully insulated inflatable ring switchgear with Insulation Protection Manufacturers, Companies
ODM SZ11 Type 10kV Series On-Load Voltage Regulator Power Transformer Factories, Company

ODM SZ11 Type 10kV Series On-Load Voltage Regulator Power Transformer Factories, Company
China China XL-21 Power Distribution Cabinet: Low Voltage Switchgear Suppliers for Factories and Industrial Applications Supplier, Company

China China XL-21 Power Distribution Cabinet: Low Voltage Switchgear Suppliers for Factories and Industrial Applications Supplier, Company
High-Quality China Suppliers SJKQ2Z ATS Automatic Transfer Switch for Dual Power 100A-1250A - Reliable Factory Solutions Manufacturers, Manufacturer

High-Quality China Suppliers SJKQ2Z ATS Automatic Transfer Switch for Dual Power 100A-1250A - Reliable Factory Solutions Manufacturers, Manufacturer
OEM Single Phase Current Limiting Protector - Fire-Resistant, Adjustable Overload, China Suppliers, Factory Direct Suppliers, Factory

OEM Single Phase Current Limiting Protector - Fire-Resistant, Adjustable Overload, China Suppliers, Factory Direct Suppliers, Factory
OEM China DFW Cable Branch Box - Outdoor Intelligent Power Distribution from Leading Suppliers & Factory Supplier, Manufacturers

OEM China DFW Cable Branch Box - Outdoor Intelligent Power Distribution from Leading Suppliers & Factory Supplier, Manufacturers
China SJK47-63 Miniature Circuit Breaker MCB DPN Manufacturers, Manufacturer

China SJK47-63 Miniature Circuit Breaker MCB DPN Manufacturers, Manufacturer
China XGN15-12 Metal-Clad Fixed-Type Ring Main Unit Switchgear in Cubicle Design Supplier, Manufacturer

China XGN15-12 Metal-Clad Fixed-Type Ring Main Unit Switchgear in Cubicle Design Supplier, Manufacturer