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Siemens 3SE3120-1E Heavy-Duty Metal Enclosure 리미트 스위치 (Travel Switch)
SIRIUS 3SE3 series heavy-duty limit switch with metal enclosure, equipped with 1NO+1NC snap-action contacts and roller lever actuator. Rated IP67, it is suitable for harsh industrial environments.
모델 코드 설명
| 코드 세그먼트 | 설명 |
| 3SE3 | Siemens SIRIUS series heavy-duty limit switch with metal enclosure |
| 120 | 기본 모델: 40mm wide housing, Pg13.5 cable gland, double-break snap-action contacts |
| -1이자형 | 액추에이터: Standard single roller lever, 1NO+1NC contact configuration |
Important Notice: 이 모델은 단종되었습니다. The official replacement is 3SE5112-0CE01.
기술 사양
| 목 | 매개변수 | 비고 |
| 연락처 구성 | 1 평상시 열림 (아니요) + 1 평상시 닫힘 (NC) | Double-break snap-action design |
| 정격전류 / 전압 | 10에이 / 500뷔와 | AC-15: 2.5에이 / 400다섯 |
| 10에이 / 600DC에서 | DC-13: 0.4에이 / 24다섯 | |
| 작동 메커니즘 | 단일 롤러 레버 | 기계적 수명 ≥ 10,000,000 운영 |
| 하우징 재질 | Die-cast aluminium | Robust and impact-resistant |
| 유입 방지 | IP67 | Dust-tight and water-resistant; temporary immersion permitted |
| 케이블 입구 | Pg13.5 cable gland | Suitable for cables with outer diameter 9-14mm |
| 장착 유형 | Surface mounting / DIN 레일 장착 | Compatible with various mounting brackets |
| 주변 온도 | -25°C ~ +80°C | Adaptable to harsh working conditions |
| 규정 준수 표준 | IEC 60947-5-1, 안에 50041, VDE 0660 | Compliant with international industrial safety standards |
| 기계적 수명 | ≥ 10,000,000 운영 | Electrical life ≥ 100,000 operations under rated load |
Cross-Brand Replacement List (직접 교체)
| 상표 | 모델 | 호환성 | 참고가격 (위안화) | 장점 |
| 지멘스 (대사) | 3SE5112-0CE01 | 100% | 450-550 | Official replacement, 완벽하게 호환됨 |
| 슈나이더 일렉트릭 | XCKN2118P16 | 95% | 380-480 | Identical contact configuration, IP67 등급 |
| 씨줄 | LS31P11 | 90% | 350-420 | Cost-effective with global warranty |
| 친트 (국내의) | YBLX-ME/8108 | 90% | 120-180 | Competitive price, fast local delivery |
| 맛있는 (국내의) | LXK3-20S/T | 85% | 100-150 | Economical choice for bulk replacement |
Common Models of 3SE3 Series
- Standard Roller Lever (1아니요+1NC)
| 모델 | 액추에이터 설명 | 교체 모델 |
| 3SE3120-1E | 단일 롤러 레버 | 3SE5112-0CE01 |
| 3SE3120-1G | 듀얼 롤러 레버 | 3SE5112-0CE11 |
| 3SE3120-1H | Adjustable roller lever | 3SE5112-0CE21 |
- Other Actuator Types
| 모델 | 액추에이터 설명 | 연락처 구성 |
| 3SE3122-1E | Straight plunger | 1아니요+1NC |
| 3SE3124-1E | 포크 레버 | 1아니요+1NC |
| 3SE3126-1E | Adjustable fork lever | 1아니요+1NC |
| 3SE3130-1E | Rotary lever | 1아니요+1NC |
- Dual Contact Configuration (2아니요+2NC)
| 모델 | 액추에이터 설명 | 연락처 구성 |
| 3SE3120-2E | 단일 롤러 레버 | 2아니요+2NC |
| 3SE3120-2G | 듀얼 롤러 레버 | 2아니요+2NC |
문제 해결 & 유지보수 가이드
- 일반적인 결함 & 솔루션
| 결함 현상 | 가능한 원인 | 검사 단계 | 솔루션 |
| Contacts fail to operate | 1. Jammed lever | 1. Check smooth mechanical movement | 1. Remove foreign matters and lubricate the shaft |
| 2. Damaged return spring | 2. Test spring reset force | 2. Replace the spring | |
| 3. Worn contacts | 3. 접촉 저항 측정 | 3. Replace contact assembly | |
| 접촉 고착 | 1. 과부하 운전 | 1. Verify load against rated value | 1. Reduce load or select higher-capacity model |
| 2. Arc erosion | 2. Check contact surface for burn marks | 2. 연락처 교체 | |
| 3. Excessive dust accumulation | 3. Inspect sealing integrity | 3. Renew seals for better protection | |
| 불안정한 신호 | 1. 느슨한 배선 | 1. Tighten terminal connections | 1. Retighten cables |
| 2. Oxidized contacts | 2. 접촉 저항 측정 | 2. Clean contact surfaces | |
| 3. 과도한 진동 | 3. Check mounting tightness | 3. Add vibration damping measures |
- Periodic Maintenance Schedule
| Maintenance Item | 간격 | 작업 |
| 육안검사 | 월간 간행물 | Check housing damage and sealing condition |
| Mechanical Operation Test | 계간지 | Manually actuate the lever to ensure smooth movement |
| Contact Performance Test | 반년마다 | 접촉 저항 측정, ensure value ≤ 50mΩ |
| 청소 & 매끄럽게 하기 | 매년 | Remove internal dust; lubricate shafts with silicone grease |
| Seal Replacement | 모든 2 연령 | Replace cable glands and O-rings |
애플리케이션 & 산업 사례
- 적용 가능한 시나리오
공작기계: Travel limit for worktables and position detection for cutting tools
자동화된 생산 라인: Conveyor positioning and workpiece detection
리프팅 장비: Travel limit protection and anti-collision detection
포장기계: Position control for cutting & sealing and roll tension detection
야금 산업: Position detection under high temperature (heat shield required)
- Non-Recommended Scenarios
Severely Corrosive Environments: Direct exposure to acid or alkaline solutions (stainless steel enclosure model recommended)
Explosive Hazardous Areas: Adopt explosion-proof limit switches of 3SE5 series
고정밀 위치 결정: For accuracy within ±0.1mm, proximity switches or encoders are preferred
- Application Cases
사례 1: Automotive Stamping Production Line
애플리케이션: Travel limit protection for stamping press slides
해결책: Install 3SE3120-1E at upper and lower limit positions to cut off power when the slide reaches the limit
결과: Prevent equipment overload damage, improve operational safety; annual failure rate < 0.5%
사례 2: Automated AS/RS Warehouse
애플리케이션: Rail limit and cargo location detection for stackers
해결책: Mount 3SE3120-1E at rail ends and cargo positions to realize precise positioning and safety protection
결과: Improve automation level, reduce manual intervention; positioning accuracy up to ±5mm
- 3SE3 series features metal housing and IP67 protection; 1E stands for single roller lever with 1NO+1NC contacts.
- Choose metal enclosure for heavy-duty use, and plastic enclosure (3SE5) for light-duty applications.
- For the discontinued model, use 3SE5112-0CE01 as direct replacement.
- Domestic alternatives from Chint and Delixi cut costs by half while retaining around 90% 성능.
