LMCPS2-45 CPS Control And Protection Switch | Intelligent Motor Protector
LMCPS2-45 CPS Control And Protection Switch | Intelligent Motor Protector
The LMCPS2-45 series Control and Protection Switch (CPS) is an all-in-one integrated control & protection device for three-phase motors and distribution loads, available in two display versions: digital tube screen and LCD touch screen. Rated at 45A with adjustable current range 16~45A, it integrates motor startup control, overload, short-circuit, phase loss, under-voltage, earth leakage and fire linkage protection. Equipped with RS485 Modbus communication for remote data monitoring, this DIN rail mounted unit complies with IEC60947-6-2 standards, widely used for pumps, fans, HVAC and industrial automation motor control cabinets.
The LMCPS2-45 series Control and Protection Switch (CPS) is an all-in-one integrated control & protection device for three-phase motors and distribution loads, available in two display versions: digital tube screen and LCD touch screen. Rated at 45A with adjustable current range 16~45A, it integrates motor startup control, overload, short-circuit, phase loss, under-voltage, earth leakage and fire linkage protection. Equipped with RS485 Modbus communication for remote data monitoring, this DIN rail mounted unit complies with IEC60947-6-2 standards, widely used for pumps, fans, HVAC and industrial automation motor control cabinets.
1. Product Overview
The LVMA LMCPS2-45 Control and Protection Switch (short for CPS) is a new-generation all-in-one low-voltage combined control and protection device, replacing the traditional combination of contactor + thermal relay + circuit breaker into a single modular unit. This 3P 45A model has two optional display panels: digital LED tube screen and full LCD parameter screen, supporting adjustable rated current from 16A to 45A.
It realizes full-cycle control and multi-dimensional safety protection for three-phase asynchronous motors and general distribution loads, with built-in fire control linkage interface and RS485 Modbus-RTU communication for remote industrial IoT monitoring. Manufactured to IEC60947-6-2 and GB/T14048.9 standards, it saves cabinet space, simplifies wiring and reduces fault points, ideal for HVAC, water pump stations, manufacturing production lines and building electrical control systems.
2. Core Product Features
1. Two Optional Display Versions
- Digital Tube Version: Cost-effective LED digital display, real-time voltage, current, fault code reading, simple physical function buttons for parameter setting
- LCD Screen Version: Large full-color LCD display, intuitive parameter menu, up/down/OK/shift buttons, complete fault record storage, easier for complex system debugging
Both versions share identical main circuit protection and communication functions, only differing in human-machine interaction panels.
2. All-in-One Integrated Control & Multi-Fault Protection
- Motor start-stop control (equivalent to AC contactor)
- Overload / phase loss / three-phase unbalance protection (equivalent to thermal overload relay)
- Short-circuit instantaneous breaking protection (equivalent to MCB/MCCB)
- Earth leakage residual current protection
- Under-voltage / over-voltage loss of power protection
- Fire signal linkage tripping control
All protection thresholds can be freely set via the front operation panel.
3. Wide Adjustable Current Range (16A ~ 45A)
4. Built-in RS485 Modbus Communication Interface
5. Mechanical Manual Operation Handle
6. Complete Auxiliary Contact Terminals
- NO/NC fault feedback contacts (95/98, 41/44) for external alarm lights and buzzers
- Fire control linkage input terminals for fire alarm system forced power cut-off
- Control coil terminals A1/A2 for remote automatic start-stop logic control
7. Safe Standardized Structure & Certification
- IP20 flame-retardant modular housing, standard 35mm DIN rail mounting
- Withstand 50kA short-circuit breaking capacity, arc extinguishing internal structure
- Fully compliant with international standard IEC60947-6-2, third-party certified for industrial safety use
3. Working Conditions
- Ambient operating temperature: -10°C ~ +55°C
- Protection grade: IP20, only installed inside enclosed indoor distribution cabinets; not for outdoor wet, splash or dust-intensive open areas
- Surrounding atmosphere: No corrosive gas, flammable or conductive metal dust
- Altitude: Stable rated performance below 2000 meters above sea level
- Vibration resistance: Tolerate normal mechanical vibration of production workshops; avoid continuous strong impact
- Humidity: Relative humidity ≤85%, no condensation inside the device housing
4. Unified Technical Specifications
| Parameter | Unified Specification for LMCPS2-45 Series |
|---|---|
| Model | LMCPS2-45 (Digital Tube / LCD Screen two versions) |
| Poles | 3P three-phase main circuit |
| Rated Operational Voltage | AC400V 50Hz |
| Adjustable Working Current | 16A ~ 45A |
| Ultimate Rated Current Ie | 45A |
| Short Circuit Breaking Capacity | 50kA |
| Communication | RS485 Modbus-RTU (standard built-in) |
| Special Function | Fire control linkage, multi-fault storage record (LCD version) |
| Protection Items | Overload, phase loss, unbalance, short circuit, earth leakage, over/under voltage |
| Auxiliary Contacts | Multiple NO/NC signal feedback contacts + fire control input terminals |
| Mounting Method | Standard 35mm DIN rail modular installation |
| Compliance Standard | IEC60947-6-2, GB/T14048.9 |
| Housing Material | Flame-retardant insulated engineering plastic |
5. Typical Applications
- Three-phase fan, water pump, air compressor motor control cabinets
- HVAC central air conditioning, refrigeration equipment electrical control panels
- Automated production line, CNC machine tool motor protection control
- Commercial building fire linkage power distribution systems
- Solar auxiliary pump and industrial wastewater treatment equipment control
- Intelligent factory centralized motor monitoring and control systems
6. Frequently Asked Questions (FAQ)
1. What is the difference between the digital tube version and the LCD screen version?
2. What is the advantage of CPS compared with separate contactor + thermal relay + circuit breaker?
3. Does this CPS support remote monitoring through PLC?
4. Can it realize automatic power cut-off when fire alarm signal is received?
5. What faults can this CPS protect against?
6. Is DIN rail mounting supported?
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
1. Product Overview
The LVMA LMCPS2-45 Control and Protection Switch (short for CPS) is a new-generation all-in-one low-voltage combined control and protection device, replacing the traditional combination of contactor + thermal relay + circuit breaker into a single modular unit. This 3P 45A model has two optional display panels: digital LED tube screen and full LCD parameter screen, supporting adjustable rated current from 16A to 45A.
It realizes full-cycle control and multi-dimensional safety protection for three-phase asynchronous motors and general distribution loads, with built-in fire control linkage interface and RS485 Modbus-RTU communication for remote industrial IoT monitoring. Manufactured to IEC60947-6-2 and GB/T14048.9 standards, it saves cabinet space, simplifies wiring and reduces fault points, ideal for HVAC, water pump stations, manufacturing production lines and building electrical control systems.
2. Core Product Features
1. Two Optional Display Versions
- Digital Tube Version: Cost-effective LED digital display, real-time voltage, current, fault code reading, simple physical function buttons for parameter setting
- LCD Screen Version: Large full-color LCD display, intuitive parameter menu, up/down/OK/shift buttons, complete fault record storage, easier for complex system debugging
Both versions share identical main circuit protection and communication functions, only differing in human-machine interaction panels.
2. All-in-One Integrated Control & Multi-Fault Protection
- Motor start-stop control (equivalent to AC contactor)
- Overload / phase loss / three-phase unbalance protection (equivalent to thermal overload relay)
- Short-circuit instantaneous breaking protection (equivalent to MCB/MCCB)
- Earth leakage residual current protection
- Under-voltage / over-voltage loss of power protection
- Fire signal linkage tripping control
All protection thresholds can be freely set via the front operation panel.
3. Wide Adjustable Current Range (16A ~ 45A)
4. Built-in RS485 Modbus Communication Interface
5. Mechanical Manual Operation Handle
6. Complete Auxiliary Contact Terminals
- NO/NC fault feedback contacts (95/98, 41/44) for external alarm lights and buzzers
- Fire control linkage input terminals for fire alarm system forced power cut-off
- Control coil terminals A1/A2 for remote automatic start-stop logic control
7. Safe Standardized Structure & Certification
- IP20 flame-retardant modular housing, standard 35mm DIN rail mounting
- Withstand 50kA short-circuit breaking capacity, arc extinguishing internal structure
- Fully compliant with international standard IEC60947-6-2, third-party certified for industrial safety use
3. Working Conditions
- Ambient operating temperature: -10°C ~ +55°C
- Protection grade: IP20, only installed inside enclosed indoor distribution cabinets; not for outdoor wet, splash or dust-intensive open areas
- Surrounding atmosphere: No corrosive gas, flammable or conductive metal dust
- Altitude: Stable rated performance below 2000 meters above sea level
- Vibration resistance: Tolerate normal mechanical vibration of production workshops; avoid continuous strong impact
- Humidity: Relative humidity ≤85%, no condensation inside the device housing
4. Unified Technical Specifications
| Parameter | Unified Specification for LMCPS2-45 Series |
|---|---|
| Model | LMCPS2-45 (Digital Tube / LCD Screen two versions) |
| Poles | 3P three-phase main circuit |
| Rated Operational Voltage | AC400V 50Hz |
| Adjustable Working Current | 16A ~ 45A |
| Ultimate Rated Current Ie | 45A |
| Short Circuit Breaking Capacity | 50kA |
| Communication | RS485 Modbus-RTU (standard built-in) |
| Special Function | Fire control linkage, multi-fault storage record (LCD version) |
| Protection Items | Overload, phase loss, unbalance, short circuit, earth leakage, over/under voltage |
| Auxiliary Contacts | Multiple NO/NC signal feedback contacts + fire control input terminals |
| Mounting Method | Standard 35mm DIN rail modular installation |
| Compliance Standard | IEC60947-6-2, GB/T14048.9 |
| Housing Material | Flame-retardant insulated engineering plastic |
5. Typical Applications
- Three-phase fan, water pump, air compressor motor control cabinets
- HVAC central air conditioning, refrigeration equipment electrical control panels
- Automated production line, CNC machine tool motor protection control
- Commercial building fire linkage power distribution systems
- Solar auxiliary pump and industrial wastewater treatment equipment control
- Intelligent factory centralized motor monitoring and control systems
6. Frequently Asked Questions (FAQ)
1. What is the difference between the digital tube version and the LCD screen version?
2. What is the advantage of CPS compared with separate contactor + thermal relay + circuit breaker?
3. Does this CPS support remote monitoring through PLC?
4. Can it realize automatic power cut-off when fire alarm signal is received?
5. What faults can this CPS protect against?
6. Is DIN rail mounting supported?
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
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