| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Manual Type |
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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) | ||||||
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 |
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