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Safety Relay Module SIL 3 | Standstill Safety Function | IP40 Protection | by SICK
The Safety Relay Module SIL 3 is designed for industrial safety systems, providing a standstill safety function and high reliability with a mechanical life of over 50 million operations. Ideal for machine safety monitoring and automation systems, it features positively guided relay contacts and compact dimensions, ensuring efficient operation in demanding environments.
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Technical Specifications
- Supply voltage: 400 V AC (320 V ... 440 V), 24 V DC for diagnostic outputs
- Residual ripple: 10%
- Maximum power consumption: ≤ 10 VA
- Measured/motor voltage: ≤ 690 V AC (≤ 600 V AC for UL 508 applications)
- Voltage threshold adjustable from 20 mV to 400 mV
- Standstill time adjustable from 0.2 s to 6 s
- Response time ≤ 100 ms
- Contact configuration: 3 NO and 1 NC relay contacts, positively guided
- Nominal switching voltage: 250 V AC
- Switching capacity: N/O 3 A/230 V AC, N/C 1 A/230 V AC
- Mechanical life: ≥ 50 million switching operations
- Mounting: 35 mm mounting rail according to EN 60715
- Enclosure rating: Terminals IP20, Housing IP40
- Shock resistance: 30 g, 11 ms
- Vibration resistance: 10 Hz to 55 Hz
- Dimensions (H x L x W): 112mm x 121mm x 45mm
- Weight: 0.4 kg
Key Features
- Safety integrity level SIL 3 (IEC 61508)
- Category 4 (EN ISO 13849) and Performance level PL e
- Standstill drive safety function
- Spring terminals with plug-in spring terminals for easy wiring
- Positively guided relay contacts with 3 NO and 1 NC
- High mechanical life of ≥ 50 million switching operations
- Compact dimensions: 45 mm x 112 mm x 121 mm
- IP20 rated terminals and IP40 housing protection
- Diagnostic semiconductor outputs with short-circuit protection
Professional Installation Requirements
- Installation must be performed by a qualified electrician or technician familiar with safety relay systems and relevant electrical standards.
Applications
- Industrial safety systems requiring SIL 3 and Category 4 safety integrity
- Machine safety monitoring with standstill detection
- Automation systems requiring reliable safety relay functions
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- High reliability reduces downtime and waste from equipment failure
- Energy-efficient operation with low power consumption (≤ 10 VA)
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy for details.
Available Now
The SICK MOC3ZA-KAZ34A6 Safety Relay Module is available for immediate purchase, ideal for industrial safety and automation applications requiring high safety integrity.
