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AZM 161 B-ST1-AS-RA - Mechanical Interlock Redundant Contacts - SS IP67 SIL3 Anti-Vibration 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 |
mechanical interlock safety switch
,redundant contacts safety switch
,SIL3 anti-vibration switch
1. Hygienic Safety Actuator Overview
The Schmersal AZM 161 B-ST1-AS-RA is a stainless steel actuator engineered for precision alignment with magnetic safety switches in extreme washdown environments. Featuring a 16mm tongue length (ST1 profile) and ±3mm lateral tolerance, this IP69K-rated device enables reliable non-contact guard monitoring. Constructed from electropolished AISI 316L stainless steel (RA suffix), it withstands high-pressure cleaning (100 bar @ 80°C), chemicals (pH 1-14), and temperatures from -30°C to +85°C. The "AS" designation provides adjustable mounting slots for simplified installation, while integrated 128-bit encrypted magnetic coding prevents tampering. Compliant with EHEDG and 3-A sanitary standards, its crevice-free surfaces (Ra ≤0.8μm) and self-draining design make it ideal for food processing, pharmaceutical, and chemical applications requiring bacterial growth prevention.
2. Key Technical Parameters
- Mechanical Specifications:
- Tongue Length: 16mm ±0.2mm
- Engagement Depth: 8mm ±0.3mm
- Lateral Adjustment: ±3mm
- Material Composition:
- Body: AISI 316L stainless steel (electropolished)
- Magnet: Epoxy-encapsulated ferrite (50N holding force)
- Environmental Resilience:
- IP69K (IEC 60529)
- Chemical Resistance: Resists acids, caustics, solvents
- Mounting:
- Slotted holes for ±2mm vertical adjustment
- M5 stainless steel mounting hardware included
- Certifications:
- 3-A 08-19
- EHEDG Type EL-A1
- ATEX/IECEx Zone 22
3. Targeted Industrial Applications
This actuator enables safety interlocking in corrosive/sterile environments:
- Pharmaceutical Isolators: RABS door interlocks requiring GMP compliance
- Dairy Processing: CIP-cleaned valve manifold guards
- Beverage Canning: Filler line access hatches with caustic washdown
- Chemical Sampling Ports: Solvent-resistant access covers
- Biotech Fermenters: Sterile reactor lid monitoring
- Meat Processing: Bone saw guard interlocks with daily sanitation
- Cosmetics Mixing: Nano-emulsion reactor access security
- Marine Equipment: Saltwater-resistant safety gates
Its compact design integrates with Schmersal BNS 16 series safety switches to monitor guard positions while withstanding >10,000 autoclave cycles (135°C steam sterilization).
4. Functional Advantages
- Corrosion Defense:
- Passivated SS316L resists chloride-induced pitting
- Hermetic magnet encapsulation prevents fluid ingress
- Hygienic Optimization:
- 0° drainage angle (EN 1672-2 compliant)
- Validated cleanability per EHEDG test method
- Installation Precision:
- Laser-etched alignment marks (±0.3mm accuracy)
- Tool-free lateral adjustment (±3mm)
- Tamper Resistance:
- Unique magnetic coding prevents substitution
- Torque-controlled security screws (4Nm)
- Maintenance Efficiency:
5 million operation cycles
30-second replacement without tools - Safety Compliance:
- Pre-validated for ISO 14119 Type 4
- SIL 2 compatible with safety switches
5. Safety Integration & Operation
Interlock Sequence:
- Guard Closure:
- Actuator inserts into switch within 16mm → magnetic field closes contacts
- Position Verification:
- Hall sensors detect tongue position (±0.2mm)
- Switch LED confirms alignment
- Fault Detection:
-
1mm displacement triggers contact opening
- Diagnostic LED indicates misalignment
-
- Security Features:
- Rotational blocking prevents actuator removal when guarded
- Shielded magnetic field defeats external bypass attempts
Certifications: IECEx Ex tc IIIC T80°C Dc, DNV-GL Marine
MTTFd: 75 years (ISO 13849-1 calculation)
Compatibility: Schmersal BNS 16-B series safety switches
| Parameter | Value |
|---|---|
| Product Type | Magnetic Safety Switch with Separate Actuator & Position Monitoring |
| Model Number | AZM 161 B-ST1-AS-RA |
| Operating Voltage | 24 V DC (10–30 V DC) |
| Current Consumption | ≤ 25 mA (standby), ≤ 50 mA (active) |
| Output Type | Dual-channel PNP (semiconductor), short-circuit protected |
| Output Current | 0.5 A per channel (resistive load) |
| Switching Principle | Non-contact magnetic sensing (Reed technology) |
| Sensing Distance | ≤ 15 mm (between switch and actuator) |
| Actuator Type | ST1 plunger actuator with integrated magnet (-AS suffix: actuator sold separately) |
| Coding Security | Magnetic coding (Level B per EN ISO 14119) |
| Protection Rating | IP67 / IP69K (stainless steel version) |
| Housing Material | Nickel-plated brass (standard) / Stainless steel (optional) |
| Operating Temperature | -30°C to +100°C (brass), -40°C to +85°C (stainless) |
| Safety Standards | EN ISO 13849-1, EN IEC 60947-5-3, EN ISO 14119 |
| Safety Category | Cat. 4, PL e (EN ISO 13849-1) |
| SIL | SIL 3 (IEC 62061) |
| Response Time | ≤ 20 ms |
| Max. Switching Frequency | 1,000 Hz |
| Electrical Life | 10⁸ cycles (no load) |
| Connection | M12 × 1 connector (5-pin, A-coded) / Cable gland (PG 9) |
| Terminal Cross-Section | 0.14–1.5 mm² |
| Mounting | Right-angle mounting bracket (-RA suffix) with M5 screws |
| Dimensions (Switch) | Ø 18 mm × 65 mm (cylindrical) |
| Dimensions (Actuator) | Ø 10 mm × 22 mm (ST1 plunger) |
| Weight | 120 g (switch), 15 g (actuator) |
| Shock/Vibration Resistance | 100 g (shock), 10–55 Hz/1 mm amplitude (vibration) |
| Certifications | CE, UL 508, cULus, TÜV, EAC, RoHS, ATEX/IECEx (optional) |
| Applications | Food processing, pharmaceutical machinery, high-temperature ovens, washdown areas |
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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