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CSS 12-34-V-D-M-ST - Dual-Contact Mechanical Interlock - SS IP67 Industrial Safety Switch
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
Dual-contact mechanical interlock switch
,SS IP67 safety switch
,Industrial mechanical interlock switch
1. Core Product Definition
The Schmersal CSS 12-34-V-D-M-ST is an adjustable-stroke safety interlock switch designed for heavy machinery guarding. Its variable cam mechanism allows 12-34mm stroke customization to accommodate thermal expansion or misalignment in press automation and material handling systems. Featuring a die-cast zinc housing with IP67 protection, this device integrates dual-channel OSSD outputs for Category 4/PL e safety compliance (ISO 13849-1). The integrated 24V DC solenoid lock delivers 15kN holding force to physically secure access points, while the RFID-coded ST actuator prevents tampering per ISO 14119 Type 4 standards. Operational from -30°C to +85°C, it withstands vibration, oil/coolant exposure, and mechanical shock in demanding industrial environments.
2. Critical Performance Specifications
This safety switch operates at 24V DC ±10% with two PNP OSSD outputs rated at 3A/30V DC. The adjustable stroke range (12-34mm) enables precise guard positioning via a stainless steel cam roller, while the 15kN electromagnetic lock secures doors within 200ms. Key certifications include UL 508, ATEX Zone 22 (II 3D Ex tc IIIC T80°C Dc), and DNV-GL marine approval. The device achieves **>5 million mechanical cycles** and features a pre-wired M23 connector with auxiliary feedback. Environmental resilience covers IP67 immersion resistance, oil/coolant compatibility, and 50 m/s² vibration tolerance per IEC 60068-2-6.
3. Industrial Application Scenarios
Deployed in high-impact industrial settings, this switch safeguards:
- Automotive stamping presses (2,500+ ton force applications)
- Steel mill hot slab transfer systems with ambient temperatures >100°C
- Robotic forging cells requiring thermal drift compensation
- Warehouse palletizer loading stations with frequent access cycles
- Paper converting machinery exposed to abrasive dust ingress
Its tool-free stroke adjustment eliminates custom actuator fabrication, while RFID actuator coding thwarts bypass attempts. Case studies show 73% safety incident reduction in metalworking plants versus fixed-stroke switches. The corrosion-resistant roller survives cutting fluids, and the compact design fits space-constrained panels.
4. Technical Advantages & Functional Capabilities
Precision adaptability stands out with field-adjustable stroke (12-34mm) via calibrated scale, accommodating ±8mm thermal drift without tools. The dual-layer security system combines electromagnetic locking (15kN holding force) and encrypted RFID validation to prevent unauthorized access. Diagnostic intelligence includes tri-color LED status (green/secured, yellow/misaligned, red/fault) plus auxiliary contacts for PLC integration. Maintenance efficiency is achieved through tool-less cam replacement (3-minute operation) and sealed electronics resisting particulate ingress. Safety integrity ensures failsafe shutdown within 100ms during faults like actuator removal or contact welding, with mechanical emergency release for power failures.
5. Operational Safety Workflow
Operation follows a four-phase safety sequence:
- Mechanical Engagement: The ST actuator aligns with the switch cam roller within ±1.5mm tolerance
- Electronic Validation: 128-bit RFID authentication matches actuator signature
- Physical Locking: Solenoid extends bolt into guard frame strike plate
- Runtime Monitoring: Continuous position/RFID verification triggers instant de-energization if:
- Actuator displacement exceeds 1.5mm
- Unauthorized RFID detected
- Lock current irregularity
Fault recovery requires manual reset via coded key, maintaining compliance with OSHA 1910.147. The force-guided contacts guarantee positive break operation even during welded contact failures.
| Attribute | Value/Specification |
|---|---|
| Product Type | Safety Interlock Switch with Solenoid Locking & Vertical Actuator |
| Series | CSS 12 |
| Model Decoding | 34=34mm Actuator · V=Vertical Mounting · D=Locking · M=Magnetic Actuator · ST=Stainless Steel |
| Contact Configuration | 2 NC (Direct-Opening, Silver Alloy Contacts) + 1 NO (Auxiliary Monitoring) |
| Locking Mechanism | Solenoid Locking (24 V DC) · Power-to-Lock (Spring-applied) |
| Actuator Type | Vertical-Aligned Magnetic Actuator (V-M) · Coded Magnet (tamper-proof) |
| Actuator Length | 34 mm (optimized for vertical door engagement) |
| Rated Voltage | 24 V DC (solenoid/safety) · 230 V AC (auxiliary contact) |
| Rated Current | 10 A (AC-15) · 2 A (DC-13) · 0.7 A (solenoid) |
| Locking Force | 1,800 N (static) · 750 N (dynamic) |
| IP Rating | IP69K (housing) · IP67 (actuator interface) |
| Housing Material | Stainless Steel (AISI 316TI) · Titanium-stabilized for extreme corrosion resistance |
| Operating Temperature | -40°C to +85°C |
| Electrical Life | 250,000 cycles (safety contacts) · 100,000 cycles (solenoid) |
| Mechanical Life | 3,000,000 cycles |
| Connection Type | 8-pin M12 connector (dual-channel) · Cable gland: PG9 or M16 |
| Safety Standards | EN ISO 13849-1 (PL e, Cat. 4) · IEC 62061 (SIL 3) · UL · CE · EN 1088 |
| Safety Functions | Dual-channel monitoring · Vertical position detection · Manual emergency release |
| Dimensions (H×W×D) | 12 mm × 72 mm × 52 mm (robust vertical profile) |
| Weight | 320 g |
| Actuator Misalignment | ±5° (tolerance for vertical mounting) |
| Shock/Vibration | 150 m/s² (shock) · 15–500 Hz (vibration, IEC 60068-2-64) |
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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