슈나이더 일렉트릭 LC1D50AM7C

Schneider Electric LC1D50AM7C is an AC 접촉기 belonging to the locally-manufactured TeSys Deca series.

기본 매개변수

정격전압: 690다섯

정격전류: 50에이

보조 연락처: 1아니요 (평상시 열림) + 1NC (평상시 닫힘)

제어 회로: AC 50/60Hz

제어 전압: 220VAC

극수: 3피

기계 및 전기 서비스 수명

No-load Mechanical Service Life: 6 백만 개의 작업

전기적 수명: 1.2 million operations under AC-1 utilization category with Ue ≤ 440V; 1.5 million operations under AC-3 utilization category with Ue ≤ 440V; 2 million operations with Ue = 660/690V

제품특징

Compact Installation: Contactors up to 38A and protective components have a width of only 45mm. Surge suppressors can be installed without tools, and the mechanical interlock of reversible contactors does not occupy additional space.

High Integration: 와 통합 1 normally open/1 normally closed auxiliary contacts; DC coils are built-in with bidirectional current suppression diodes.

안전하고 신뢰할 수 있는: Main circuit and control circuit are clearly distinguished; adopted mirror contact design to ensure 100 million reliable operations; equipped with protective cover to prevent accidental connection.

Superior Quality: DC coils feature wide-range control voltage (0.7~1.25Uc), with strong seismic resistance, low noise and high-strength wiring terminals.

As a 3-pole, 50에이, 220VAC coil AC contactor in the TeSys Deca series, Schneider Electric LC1D50AM7C is mainly suitable for AC-3 category squirrel cage motor control (22kW@400V) and various industrial load scenarios. The following is a structured description of its typical application fields and scenarios.

1. Application Subdivision by Load Type
2. 모터 제어 (AC-3 Core Scenario)

Applicable Motor Types: Squirrel cage asynchronous motors (예를 들어, 물 펌프, 팬, 압축기, 컨베이어 벨트)

Power Adaptability: Maximum 22kW at 400V, 40HP at 480V, derated operation at 690V

Typical Working Conditions: 빈번한 시작-중지, long-time operation, 가역적 제어 (기계적 인터록 포함), star-delta starting circuit

2. Application for Other Load Types

저항 부하: Resistance furnaces, 히터, 건조 장비 (AC-1 utilization category, electrical service life up to 1.2 백만 개의 작업)

유도 부하: 트랜스포머, 솔레노이드 밸브, contactor coil control (AC loads with power factor ≥ 0.95)

Mixed Loads: Industrial ovens, plastic molding machines, 용접 장비 (suitable for AC-1/AC-3 mixed working conditions)

III. Detailed Explanation of Typical Application Scenarios

1. Water Treatment and Sewage Systems

펌프 제어: Direct starting and protection of clean water pumps and sewage lift pumps, suitable for linkage control with liquid level sensors

Aeration System: Control of blower motors to ensure oxygen supply in biochemical tanks, suitable for use with frequency converters/soft starters

주요 장점: 690V rated voltage suitable for industrial power supply, moisture-proof design, auxiliary contacts support fault alarm and status feedback

2. HVAC and Building Automation

에어컨 압축기: Start-stop control of water chillers and outdoor air conditioning units, combined with temperature sensors to achieve constant temperature regulation

환기 시스템: Control of exhaust fans and supply fans, suitable for fire linkage (forced start in emergency situations)

주요 장점: Compact 45mm width saves control cabinet space, wide voltage fluctuation adaptability (0.7~1.25Uc), low-noise operation

3. Oil and Gas Industry

Wellhead Control: Control of oil pumps and compressor motors, suitable for explosion-proof control cabinets (additional explosion-proof certification required)

Pipeline Transportation: Control of booster pumps and valve actuators, suitable for communication with remote I/O and SCADA systems

주요 장점: Strong seismic resistance, high-strength wiring terminals, quick installation of surge suppressors, improved equipment mean time between failures (MTBF)

4. 제조 자동화

포장기계: Motor control of conveyor belts, sealing and cutting machines, 라벨링 기계, suitable for high-speed start-stop and position control

자재 취급: Auxiliary motor control of cranes, hoists and stackers, suitable for mechanical interlock and safety protection

섬유기계: Control of fans and pumps for carding machines, looms and printing and dyeing equipment, suitable for coordinated operation of multiple motors

1. Application Limitations and Selection Recommendations

Unsuitable Scenarios

– DC 모터 제어 (dedicated DC contactors required)

– Loads exceeding 50A (it is recommended to upgrade to LC1D65 or LC1D80 series)

– Occasions with frequent forward-reverse rotation without mechanical interlock (it is recommended to use LC2D reversible contactors)

– High inductive shock loads (예를 들어, no-load switching of large transformers, it is recommended to install surge suppressors)

Optimal Adaptation Scenarios

– 직접 시작, star-delta starting or autotransformer starting of AC-3 category squirrel cage motors (below 22kW)

– Occasions requiring 1NO+1NC auxiliary contacts to realize motor status monitoring and control interlock

– Applications with limited control cabinet space (width only 45mm) requiring high-density installation

– Frequent operation scenarios with high requirements for contactor mechanical service life (6 백만 개의 작업) and electrical service life (1.5 million operations under AC-3)

1. Application Differences from Similar Products

With 50A rated current, AC-3 category adaptability, compact design and high reliability, LC1D50AM7C has become a mainstream choice in the field of industrial motor control and infrastructure. Its typical applications focus on scenarios such as pump/fan/compressor control, 수처리, 공조, petrochemical industry, especially suitable for control loops requiring frequent start-stop, space optimization and safety interlock. 선택 중, it is necessary to consider load type, control voltage and environmental conditions; 필요한 경우, it can be matched with thermal relays (such as LRD series) to achieve overload protection and improve system safety and service life.