Schneider LP1K0901BD Miniature DC Contactor

LP1K: TeSys K series, DC coil contactor (LC1K = AC coil version)

09: Rated current 9A under AC-3 duty

01: 내장 보조자 연락하다: 1 NC (평상시 닫힘)

BD: Coil voltage DC24V

터미널: 나사 클램프 단자; DIN 레일 장착; overall width 45 mm

1. 주요 전기 사양

주회로: 3-폴, 3 연락처 없음

AC-3 rating @ 440V: 9에이; controls 4kW (380다섯) 모터; 2.2kW (220다섯)

AC-1 resistive load rating: 20에이

최대 작동 전압: 690뷔와

코일: DC24V, standard DC coil (non-wide voltage)

보조 접점: Fixed built-in 1 NC

설치: DIN rail or panel mounting

Front protection degree: IP20

인증: CCC, UL, CSA, RoHS 규제, 그린 프리미엄

기계적 수명: 10 백만 개의 작업; 전기적 수명 (AC-3): 1.3 백만 개의 작업

단자 조임 토크: 0.8~1.3 N·m

III. 일반적인 응용 분야

Directly driven by PLC DC transistor outputs; 작은 팬, 솔레노이드 밸브, 컨베이어 라인, HVAC 장비, small power motor start-stop in compact control cabinets.

1. 모델 차이점 & 교체 옵션
2. LP1K0910BD: 같은 등급, 내장 1 아니요 (평상시 열림) 보조 접점 (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: 동일한 현재 등급, AC220V AC coil version, cannot be directly interchanged
5. 국내 대안: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. 중요 사항

DC 코일; do not connect directly to AC24V supply

DC coils generate back EMF when de-energized. Add a freewheeling diode if driven by PLC transistor outputs to protect the output channel

LA1K auxiliary contact blocks can be snapped on top to expand additional auxiliary contacts

LP1K0901BD (TeSys K, 3질문 9A, DC24V, Built-in 1NC) 적용사례

핵심 장점: DC24V 코일, directly driven by PLC transistor outputs; 내장 1 NC contact for interlock and status feedback; only 45mm wide, ideal for dense OEM control cabinets; AC-3 rating for 4kW @ 380V

사례 1: Small Fan Control for AHU / Fresh Air Handling Units (Building BMS & 공조)

짐: 380V three-phase centrifugal fans & 배기 팬 (0.75~4kW)

제어 논리: DDC/PLC transistor output directly energizes the LP1K0901BD coil; main contacts switch the fan power; the built-in 1 NC contact sends stop feedback to BMS (NC closes when the contactor drops out to report fan shutdown)

Matching components: MCB upstream + LR2K thermal overload relay for motor protection; multiple contactors installed side-by-side on DIN rail to save cabinet space

이익: No AC hum from DC coils, suitable for quiet computer room & air-conditioning control cabinets; fully compatible with 24VDC building control buses

사례 2: Segmented Conveyor Drives for Packaging & 3C Automation (음식 & Electronic OEM)

짐: Sectional belt conveyors, small drum motors, material feeders, agitator motors (4kW 이하)

제어 논리: PLC 24VDC outputs control jog or continuous operation; multiple LP1K0901BD units control individual conveyor sections; 1 NC contacts implement section interlock (next section cannot start if the upstream section is still running)

작동 조건: Frequent cycling (최대 3,600 작업/시간). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

알림: Fit a freewheeling diode across the coil to suppress back EMF and prevent PLC transistor burnout

사례 3: Small Pump Stations & Circulating Water Systems (수처리 & Constant Temperature Tanks)

짐: 380V circulation pumps, chemical dosing agitators, 냉각수 펌프

제어 논리: [text truncated in original draft]

Full TeSys K Contactor Model List

1. Coil Voltage Code for AC Models (LC1K / LC2K)

B7=AC24V、E7=AC48V、F7=AC110V、M7=AC220V、P7=AC230V

2. LP1K DC Single Contactor (3피, PLC DC24V Preferred)

6프레임 (06)

LP1K0610BD (6에이, 1아니요, 24VDC)

LP1K0601BD (6에이, 1NC, 24VDC)

LP1K0610BD3 (스프링 터미널 + 내장형 서지 억제)

LP1K0601BD3 (스프링 터미널 + 내장형 서지 억제)

9프레임 (09, your model series)

LP1K0910BD (9에이, 1아니요, 24VDC)

LP1K0901BD (9에이, 1NC, 24VDC, your part number)

LP1K0910BD3 (스프링 터미널 + 내장형 서지 억제)

LP1K0901BD3 (스프링 터미널 + 내장형 서지 억제)

12프레임 (12)

LP1K1210BD (12에이, 1아니요, 24VDC)

LP1K1201BD (12에이, 1NC, 24VDC)

LP1K1210BD3 / LP1K1201BD3

16프레임 (16)

LP1K1610BD (16에이, 1아니요, 24VDC)

LP1K1601BD (16에이, 1NC, 24VDC)

LP1K1610BD3 / LP1K1601BD3

Replace BD with ED=48VDC, FD=110VDC, MD=220VDC for other coil voltages.

3. LP2K DC Reversing Contactors (정방향/역방향, built-in mechanical interlock)

9A popular models

LP2K0910BD (9에이, 1아니요, 24VDC reversing contactor)

LP2K0901BD (9에이, 1NC, 24VDC reversing contactor)

LP2K0901BD3 (스프링 터미널 + 내장형 서지 억제)

Other current ratings follow the same rule: LP2K0601BD, LP2K1201BD, 등.

4. LC1K / LC2K AC Miniature Contactors (AC 코일)

LC1K Single AC Contactors (예)

LC1K0610B7, LC1K0601B7 (AC24V)

LC1K0910M7, LC1K0901M7 (AC220V)

LC2K AC Reversing Contactors

LC2K0901B7, LC2K1201M7

5. TeSys K Matching Accessories
6. Auxiliary contact block: LA1K (1아니요+1NC, snap-on top mounting)
7. 기계적 인터록: LA2K (for DIY forward/reverse with two LP1K units)
8. 열 과부하 릴레이 (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. 서지 억제: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. 빠른 선택 가이드
11. Need RUN feedback (연락 없음) → select 10 (LP1K0910BD)
12. Need STOP feedback (NC접점) → select 01 (LP1K0901BD, your current model)
13. PLC transistor output: prefer BD3 (내장형 서지 억제) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)