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Safety Motor Standstill Monitor | SIL 3 | Category 4 | 20 Years Mission Time | by SICK
The Safety Motor Standstill Monitor is designed for industrial safety monitoring, featuring a SIL 3 safety integrity level and Category 4 compliance. Ideal for machine safety control systems, it ensures reliable standstill detection with a mission time of 20 years, making it perfect for automation and process control applications.
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Technical Specifications
- Safety Integrity Level: SIL 3 (IEC 61508)
- Category: Category 4 (EN ISO 13849)
- Performance Level: PL e (EN ISO 13849)
- PFHD: 41 x 10^-9 (EN ISO 13849)
- Mission Time: 20 years
- Stop Category: 1 (EN 60204-1)
- Drive Safety Function: Standstill
- Connection Type: Screw-type terminals, plug-in screw-type terminals
- Conductor Cross Section: 0.5 mm² to 2.5 mm², single or fine wire with ferrule
- Encoder Interface: Motor voltage measuring
- Supply Voltage (A1/A2): 400 V AC (320 V ... 440 V)
- Residual Ripple: 10%
- Max Power Consumption: ≤ 10 VA
- Supply Voltage Semiconductor Outputs (A3/A4): 24 V DC (11 V ... 30 V)
- Measured Motor Voltage: ≤ 690 V AC (≤ 600 V AC for UL 508 applications)
- Voltage Threshold Uan: 20 mV to 400 mV, adjustable
- Standstill Time ts: 0.2 s to 6 s, adjustable
- Hysteresis for Running Motor Detection: 100%
- Response Time: ≤ 100 ms
- Safety Outputs: 3 NO and 1 NC relay contacts, positively guided
- Nominal Switching Voltage: 250 V AC
- Switching Capacity AC 15: N/O 3 A/230 V AC, N/C 1 A/230 V AC
- Switching Capacity DC 13: 1 A/24 V DC
- Max Switching Frequency: ≤ 1200 per hour
- Contact Service Life: ≥ 200,000 switching operations at 230 V / 5 A
- Mechanical Life: ≥ 50 million switching operations
- Semiconductor Outputs: Electrically isolated, short-circuit protected, max 100 mA
- Signal Contacts 53/54: 3 A/250 V AC
- Enclosure Rating: Terminals IP20, Housing IP40
- Mounting: 35 mm mounting rail (EN 60715)
- Vibration Resistance: 10 Hz to 55 Hz
- Shock Resistance: Single shock 30 g, 11 ms
- 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) with Performance Level PL e
- Mean probability of dangerous failure per hour (PFHD) of 41 x 10^-9
- 20 years mission time
- Stop category 1 (EN 60204-1)
- Drive safety function: Standstill detection
- Connection via screw-type terminals, plug-in screw-type terminals
- Motor voltage measuring encoder interface
- Supply voltage 400 V AC (320 V ... 440 V), max power consumption ≤ 10 VA
- Semiconductor diagnostic outputs supply voltage 24 V DC (11 V ... 30 V)
- Safety outputs: 3 normally open and 1 normally closed relay contacts, positively guided
- Nominal switching voltage 250 V AC, switching capacity up to 3 A
- Mechanical life ≥ 50 million switching operations
- Enclosure rating: Terminals IP20, Housing IP40
- Mounting on 35 mm rail according to EN 60715
Professional Installation Requirements
- Installation must be performed by a qualified electrician or technician familiar with safety-related control systems and compliant with relevant safety standards.
Applications
- Industrial safety monitoring for motor standstill
- Machine safety control systems
- Automation and process control requiring SIL 3 safety integrity
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Enhances machine safety reducing risk of accidents and associated environmental hazards
- Long service life reduces electronic waste
- Low power consumption (≤ 10 VA) contributes to energy efficiency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.
Available Now
The SICK MOC3ZA-KAZ33A6 Safety-Related Motor Standstill Monitor is available for immediate purchase, ideal for industrial safety and automation applications requiring high safety integrity.
