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Siemens 3SE5112-0CH50
- Model Code Explanation
3SE5112-0CH50 is a mechanical position switch (limit switch) from Siemens SIRIUS series. The meaning of each part of the model is as follows:
| Codesegment | Beschreibung |
| 3SE5 | Product line identifier for SIRIUS series mechanical position switches |
| 112 | Basic model: 40mm wide metal housing, 1NO+1NC snap-action contacts, M20×1.5 cable entry |
| 0 | Version: Standardversion |
| CH | Actuator type: Adjustable rotary lever with length-adjustable metal lever (100mm) and plastic roller (19mm) |
| 50 | Special configuration: Lever adjustable left/right, standard length, standard roller material |
- Grundlegende technische Spezifikationen
| Parameter | Einzelheiten |
| Produkttyp | Mechanical limit switch / position switch, SIRIUS 3SE5 series |
| Gehäusematerial | Die-cast zinc metal, 40mm wide, compliant with DIN EN 50041 |
| Protection Rating | IP66/IP67, dust-tight and water-tight, geeignet für raue Industrieumgebungen |
| Kontaktkonfiguration | 1NO+1NC (1 Normalerweise geöffnet + 1 Normalerweise geschlossen) snap-action contacts |
| Rated Current/Voltage | – AC-15: 400V/4A, 230V/6A |
| – DC-13: 24V/3A, 125V/0.55A | |
| Aktuator | Adjustable rotary lever (left/right adjustable), metal lever length 100mm, plastic roller diameter 19mm |
| Repeat Accuracy | 0.05 mm, ensuring high-precision position detection |
| Minimum Actuating Torque | 0.25 N·m (operating direction) |
| Mechanisches Leben | 15,000,000 Operationen, Hochzuverlässiges Design |
| Elektrisches Leben | 100,000 Operationen (at rated load) |
| Cable Entry | 1×(M20×1.5), standard industrial cable gland |
| Abmessungen (L×W×H) | Ca. 192 mm × 40 mm × 80 mm |
| Betriebstemperaturbereich | -25°C bis +80°C |
| Vibration Resistance | Konform mit IEC 60068-2-6, 10–55Hz, 0.75mm amplitude |
| Shock Resistance | Konform mit IEC 60068-2-27, 100m/s² (11MS) |
| Approvals | CE, UL, CSA, IEC 60947-5-1, ISO 13849-1 (PLe) |
- Produktmerkmale & Vorteile
- Modularer Aufbau: Actuator can be rotated in 22.5° increments around the axis, flexibly adapting to different mounting orientations
- High-Precision Detection: 0.05mm repeat accuracy ensures precise positioning control of machinery
- Extreme Environment Adaptability: IP66/IP67 rating withstands dust, water splashes and temporary immersion, suitable for outdoor and wet environments
- Long-Life Design: 15 million mechanical operations reduce maintenance costs and improve system availability
- Easy Installation: Lever adjustable left/right; installation and adjustment require no special tools
- Safe & Zuverlässig: Compliant with ISO 13849-1 PLe, suitable for safety-related applications
- Global Approvals: Multi-region certifications enable deployment in global projects
- Anwendungen
Siemens 3SE5112-0CH50 limit switch is suitable for the following industrial automation scenarios:
- Machine Tools & Machining: Worktable position detection, tool positioning, travel end protection
- Material Handling & Logistics: Conveyor positioning, stacker crane limiting, AGV path control
- Verpackung & Printing Equipment: Paper positioning, film tension control, packaging material presence detection
- Automobilbau: Welding robot limiting, body positioning, assembly line station detection
- Food & Beverage Industry: Filling machine level control, cap detection, conveyor system positioning
- Construction Machinery: Crane limiting, elevator door position detection, lifting platform safety protection
- Automatisierte Produktionslinien: Workpiece presence detection, equipment interlock protection, safety door monitoring
- Related Models & Alternativen
5.1 Related Models in the Same Series (3SE5112-0CHxx)
| Modell | Unterschied |
| 3SE5112-0CH01 | Standard rotary lever, fixed direction, metal lever, plastic roller |
| 3SE5112-0CH03 | Rotary lever, 27mm metal lever, 19mm ball-bearing roller |
| 3SE5112-0CH51 | Adjustable rotary lever, extended lever, special roller material |
| 3SE5112-0CH52 | Adjustable rotary lever, short lever, metal roller |
5.2 Alternative Lösungen (Other Brands/Series)
| Marke | Alternatives Modell | Hauptunterschiede |
| Schneider Electric | XCKN2118P16 | Similar mechanical structure, IP67 protection, 1NO+1NC contacts, comparable price |
| ABB | LS73K01Q11 | Kompaktes Design, IP66 protection, low actuating force, suitable for light-duty applications |
| Omron | D4V-8108SZ-N | Plastic housing, IP67 protection, 20 million mechanical operations, geringere Kosten |
| Chinese Alternative | Chint YBLX-ME/8108 | High cost-performance ratio, same basic functions, suitable for cost-sensitive projects |
- Installation & Nutzungshinweise
- Mounting Orientation: Actuator can be adjusted in 22.5° rotation increments to ensure proper contact between lever and detected object
- Cable Connection: Use M20×1.5 cable glands to maintain IP rating and prevent ingress of moisture and dust
- Actuating Force Control: Ensure force applied to the lever by the detected object does not exceed the maximum allowable value (10N) to avoid switch damage
- Regelmäßige Wartung: Inspect contact condition and actuator flexibility every 6 months to ensure reliable operation
- Safety Applications: For safety-related use, comply with ISO 13849-1 PLe requirements; use redundant design if necessary
Complete Model List of Siemens SIRIUS 3SE5 Series Limit Switches (Mechanical Position Switches)
- Series Overview & Model Coding Rules
Siemens SIRIUS 3SE5 series is a heavy-duty industrial mechanical position switch (limit switch) product line with modular design, die-cast zinc metal housing, IP66/IP67 protection, and ISO 13849-1 PLe safety rating, suitable for various harsh industrial environments.
Model Coding Rules (Beispiel: 3SE5112-0CH50)
| Codesegment | Beschreibung |
| 3SE5 | Product line identifier for SIRIUS series mechanical position switches |
| 112 | Basic model: 40mm wide metal housing, 1NO+1NC snap-action contacts, M20×1.5 cable entry |
| 0 | Version: Standardversion |
| CH | Actuator type: Adjustable rotary lever with length-adjustable metal lever (100mm) and plastic roller (19mm) |
| 50 | Special configuration: Lever adjustable left/right, standard length, standard roller material |
- Basic Model Classification of 3SE5 Series (By Housing Size & Kontaktkonfiguration)
| Basic Model | Housing Width | Kontaktkonfiguration | Cable Entry | Hauptmerkmale |
| 3SE5112 | 40mm (slim) | 1NO+1NC (snap-action) | 1×M20×1.5 | Single cable entry, compact design for space-limited applications |
| 3SE5114 | 40mm (slim) | 2NO+2NC (snap-action) | 1×M20×1.5 | Dual contact sets for complex control logic |
| 3SE5122 | 56mm (wide) | 1NO+1NC (snap-action) | 3×M20×1.5 | Multiple cable entries for multi-circuit connection |
| 3SE5124 | 56mm (wide) | 2NO+2NC (snap-action) | 3×M20×1.5 | Dual contact sets, multiple cable entries, high flexibility |
| 3SE5212 | 40mm (slim) | 1NO+1NC (slow-action) | 1×M20×1.5 | Slow-action contacts for applications requiring gradual switching |
| 3SE5214 | 40mm (slim) | 2NO+2NC (slow-action) | 1×M20×1.5 | Dual slow-action contact sets for special control requirements |
| 3SE5222 | 56mm (wide) | 1NO+1NC (slow-action) | 3×M20×1.5 | Wide-body, slow-action contacts, multiple cable entries |
| 3SE5224 | 56mm (wide) | 2NO+2NC (slow-action) | 3×M20×1.5 | Wide-body, dual slow-action contact sets, multiple cable entries |
| 3SE5312 | 40mm (slim) | 1NO+1NC (snap-action, safety type) | 1×M20×1.5 | Compliant with EN ISO 13849-1 PLe safety rating |
| 3SE5322 | 56mm (wide) | 1NO+1NC (snap-action, safety type) | 3×M20×1.5 | Wide-body safety type for safety-related applications |
| 3SE5412 | 40mm (slim) | 1NO+1NC (snap-action, AS-Interface) | 1×M20×1.5 | Integrated AS-Interface bus for networked control |
- Actuator Types & Corresponding Model Suffixes (xx Part)
3.1 Rotary Lever Series (CH/CHxx)
| Model Suffix | Actuator Description | Lever Length | Roller Type | Adjustability |
| CH01 | Standard rotary lever | 100mm (metal) | Plastic roller (19mm) | Fixed direction |
| CH03 | Rotary lever | 27mm (metal) | Ball-bearing roller (19mm) | Fixed direction |
| CH50 | Adjustable rotary lever | 100mm (metal, einstellbar) | Plastic roller (19mm) | Left/right adjustable |
| CH51 | Adjustable rotary lever | 150mm (metal, extended) | Plastic roller (19mm) | Left/right adjustable |
| CH52 | Adjustable rotary lever | 75mm (metal, short) | Metal roller (19mm) | Left/right adjustable |
3.2 Straight Actuator Lever Series (BH/BHxx)
| Model Suffix | Actuator Description | Lever Type | Merkmale |
| BH01 | Standard straight lever | 143mm metal lever, plastic head | Vertical actuation, ideal for linear motion detection |
| BH02 | Short straight lever | 70mm metal lever, plastic head | Short-stroke detection for compact spaces |
| BH50 | Adjustable straight lever | 143mm metal lever (einstellbar), plastic head | Adjustable stroke for versatile applications |
3.3 Spring Rod Series (CR/CRxx)
| Model Suffix | Actuator Description | Rod Length | Merkmale |
| CR01 | Standard spring rod | 143mm | Flexible detection for irregular objects |
| CR02 | Short spring rod | 70mm | Short stroke for limited spaces |
| CR50 | Adjustable spring rod | 143mm (einstellbar) | Adjustable stroke, high flexibility |
3.4 Other Special Actuators
| Model Suffix | Actuator Description | Anwendung |
| BH | Roller straight lever | For flat object detection |
| BR | Ball plunger straight lever | Low friction, suitable for frequent operation |
| CF | Fork lever | For profile or tubular object detection |
| DF | Dual roller lever | For flat object detection, improved stability |
| EG | Eccentric cam lever | For special angle detection |
| LU | Safety door lever | For safety door monitoring, compliant with EN ISO 13849-1 PLe |
- Complete Model Examples of 3SE5 Series (Common Combinations)
4.1 3SE5112 Series (40mm Slim, 1NO+1NC, Snap-Action)
| Komplettes Modell | Aktuator | Main Application |
| 3SE5112-0CH01 | Standard rotary lever | General mechanical limiting, fixed-direction detection |
| 3SE5112-0CH50 | Adjustable rotary lever | Multi-direction detection requiring precise positioning |
| 3SE5112-0BH01 | Standard straight lever | Linear motion end detection |
| 3SE5112-0CR01 | Standard spring rod | Flexible object detection, irregular surfaces |
| 3SE5112-0LU22 | Safety door lever | Safety door monitoring, PLe compliant |
4.2 3SE5122 Series (56mm Wide, 1NO+1NC, Snap-Action)
| Komplettes Modell | Aktuator | Main Application |
| 3SE5122-0CH01 | Standard rotary lever | Large machinery, multi-circuit connection |
| 3SE5122-0BH50 | Adjustable straight lever | Long-stroke detection, multi-direction mounting |
| 3SE5122-0DF01 | Dual roller lever | Flat object detection, improved stability |
4.3 3SE5212 Series (40mm Slim, 1NO+1NC, Slow-Action)
| Komplettes Modell | Aktuator | Main Application |
| 3SE5212-0CH01 | Standard rotary lever | Control logic requiring gradual switching |
| 3SE5212-0BH01 | Standard straight lever | Low-speed motion detection, preventing false triggering |
- Special Configuration Models (With Extra Functions)
| Modell | Special Function | Anwendung |
| 3SE5112-0CH50-1BA | With LED indicator | Visual status monitoring, easy troubleshooting |
| 3SE5112-0CH50-2BA | With positive opening mechanism | Safety-related applications ensuring emergency stop |
| 3SE5112-0CH50-3BA | With temperature compensation | Extreme temperature environments (-40°C bis +80°C) |
- Model Selection Guide
When selecting 3SE5 series limit switches, decisions can be based on the following key factors:
- Umgebungsbedingungen: For harsh environments (dust/water/corrosion), choose metal-housed models with IP66/IP67 protection
- Detected Motion Type:
Rotary motion: Select rotary lever series (CH)
Linear motion: Select straight actuator series (BH)
Irregular motion: Select spring rod series (CR)
- Contact Requirements:
Basic control: 1NO+1NC (5112/5212 Serie)
Complex control: 2NO+2NC (5114/5214 Serie)
Safety applications: Select safety type with PLe rating (5312 Serie)
- Installation Space:
Begrenzter Platz: Choose 40mm slim body (5112/5114 Serie)
Multi-cable connection: Choose 56mm wide body (5122/5124 Serie)
- Adjustability Needs: For flexible detection angle adjustment, choose adjustable series (CH50/CH51/CH52)
- Alternative Modelle & Brand Comparison
7.1 Internal Siemens Alternatives (Different Series)
| 3SE5 Model | Siemens Alternative (Other Series) | Unterschied |
| 3SE5112-0CH50 | 3SE6112-0CH50 (Non-contact safety switch) | Non-contact detection, no mechanical wear, suitable for high-frequency operation |
| 3SE5112-0CH50 | 3SE2112-0CH50 (Hinged safety switch) | Designed specifically for safety doors with integrated locking function |
7.2 Other Brand Alternatives
| Marke | Alternatives Modell | Hauptunterschiede |
| Schneider Electric | XCKN2118P16 | Similar mechanical structure, IP67 protection, 1NO+1NC contacts, comparable price |
| ABB | LS73K01Q11 | Kompaktes Design, IP66 protection, low actuating force, suitable for light-duty applications |
| Omron | D4V-8108SZ-N | Plastic housing, IP67 protection, 20 million mechanical operations, geringere Kosten |
| Chinese Alternative | Chint YBLX-ME/8108 | High cost-performance ratio, same basic functions, suitable for cost-sensitive projects |
