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RS655-Z22 - Redundant E-Stop Safety Relay - SIL3 Metal IP67 Industrial
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standardverpackung: | 50*50*50mm |
| Lieferfrist: | 3-7 |
| Zahlungsmethode: | T/T |
| Lieferkapazität: | 1/piece in stock |
SIL3 Sicherheitsrelais
,IP67-Industrie-Relee
,überflüssiges E-Stop-Relee
1. Product Overview
The Schmersal RS655-Z22 is a robust safety limit switch engineered for critical position monitoring and access control in industrial machinery. Featuring a zinc die-cast housing (IP67 rated), this device utilizes a roller lever actuator (Z22 suffix) to detect guard door positions with high reliability. Designed to ISO 13849-1 PL e (Category 4) and IEC 62061 SIL 3 standards, it incorporates force-guided positively driven contacts that guarantee safe switching even during component failure. The switch operates at 24V DC with a mechanical life exceeding 1 million operations and withstands temperatures from -25°C to +70°C. Its corrosion-resistant construction and integrated cable gland (PG11) ensure reliable performance in harsh environments like metalworking, automotive assembly, and material handling systems. The bright yellow actuator provides high visibility while offering ±3mm lateral tolerance for installation flexibility.
2. Key Technical Parameters
- Safety Ratings:
- PL e (ISO 13849-1 Cat. 4)
- SIL 3 (IEC 62061)
- PFHD: 4.7×10⁻⁹/h
- Electrical Specifications:
- Voltage: 24V DC ±10%
- Contacts: 2 NC + 2 NO (force-guided)
- Current Rating: 6A @ 250V AC / 8A @ 24V DC
- Mechanical:
- Actuator Type: Roller lever (Z22)
- Operating Force: 5-7N
- Pretravel: 15° ±3°
- Environmental:
- IP67 (IEC 60529)
- Shock Resistance: 30g (IEC 60068-2-27)
- Chemical Resistance: Resists oils, coolants
- Connection:
- Cable Entry: PG11
- Terminal Capacity: 4×1.5mm²
- Certifications:
- UL 508, CSA C22.2 No. 14
- CE, UKCA, RoHS
3. Primary Applications
This safety switch is essential for safeguarding hazardous machinery:
- Robotic Workcells: Guard door position monitoring for collaborative robots
- Press Brakes: Safety gate position verification on metal forming equipment
- CNC Machining Centers: Tool changer access door monitoring
- Packaging Lines: Hatch position detection on vertical form-fill-seal machines
- Material Handling: Conveyor system guard position confirmation
- Plastic Injection: Mold area access door interlocks
- Automotive Assembly: Safety gate monitoring on paint booths
- Heavy Equipment: Access panel security for maintenance enclosures
Its roller lever actuator provides reliable operation in high-vibration environments, while IP67 protection ensures functionality in areas with dust exposure or occasional liquid splashes.
4. Functional Advantages
- High Misalignment Tolerance: ±3mm lateral compensation prevents false triggers
- Visual Status Indicators:
- Integrated window for contact position viewing
- Optional LED version available (RS655-Z22-LED)
- Positive-Break Assurance:
- Mechanically linked contacts guarantee ≥0.5mm separation
- EN 60947-5-1 Annex K compliant
- Corrosion Resistance:
- Zinc housing with chromate plating
- Stainless steel actuator components
- Installation Flexibility:
- Multiple mounting orientations
- Adjustable lever angles (90°-180°)
- Maintenance Reduction:
- Self-cleaning contacts
1 million mechanical operations
- Safety Compliance:
- Pre-validated for EN ISO 14119
- Compatible with safety relays up to SIL 3
- Cost Efficiency:
- Tool-free contact block replacement
- Standardized mounting footprint
5. Safety Operation & Diagnostics
Mechanical Operation:
- Guard Closure:
- Roller lever depressed by guard (5-7N force)
- NC contacts close to enable machine operation
- Guard Opening:
- Lever releases, positively opening NC contacts within 20ms
- Machine enters safe state (Stop Category 0)
- Contact Monitoring:
- Force-guided mechanism ensures:
- NC contacts open before NO contacts close
- Welded contacts prevent opposite contact movement
- Force-guided mechanism ensures:
Diagnostic Features:
- Physical Inspection Window:
- Red indicator shows contact position
- Yellow indicates actuator engagement
- Electrical Monitoring:
- Safety controllers detect contact state mismatches
- Auxiliary NO contact signals fault conditions
Reset Protocol:
- Automatic reset upon guard reclosure
- Manual verification required after detected faults
| Parameter/Feature | Specification/Description |
|---|---|
| Product Type | Safety Limit Switch with Positive Opening Mechanism |
| Model Number | RS655-Z22 |
| Safety Standards | IEC 60947-5-1, EN 60947-5-1, ISO 13849-1, IEC 62061 |
| Safety Level | PL e (ISO 13849-1), SIL 3 (IEC 62061), Category 4 |
| Enclosure Rating (IP) | IP67 (Dust-tight, Protected against temporary immersion up to 1m) |
| Electrical Rating | AC-15: 240V, 4A DC-13: 24V, 3A |
| Contact Configuration | 2 NC (Normally Closed) contacts (Forced-guided / Positive opening) |
| Actuator Type | Roller Lever Actuator (Standard) (Z22 suffix typically denotes roller lever) |
| Mechanical Life | ≥ 2,000,000 operating cycles (no load) |
| Electrical Life | ≥ 100,000 cycles (at rated load) |
| Operating Principle | Mechanically driven NC contacts (Opens safety circuit upon actuator displacement) |
| Reset Mechanism | Automatic reset upon actuator release |
| Housing Material | Glass-fiber reinforced Polyamide (PA) (UV-resistant, chemical-resistant) |
| Terminal Material | Nickel-plated brass |
| Ambient Temperature Range | -25°C to +70°C |
| Connection Type | Screw Clamp Terminals (2.5 mm² max. cross-section) |
| Cable Entry | M12 x 1.5 (Plastic cable gland included) |
| Actuator Travel | ~12 mm to contact opening (pre-travel ~8 mm, overtravel ~4 mm) |
| Operating Force | ≤ 35 N (at roller) |
| Mounting | 2x M4 mounting holes (20 mm spacing) |
| Approvals/Certifications | CE, UL Listed, CSA, TÜV |
| Typical Applications | Guard door monitoring on machinery, safety gates, robotic cells, presses |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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