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Safety Motor Standstill Monitor | SIL 3 Compliance | Adjustable Voltage & Standstill Time | by SICK
The Safety Motor Standstill Monitor is designed for industrial automation safety monitoring, ensuring compliance with SIL 3 and PL e standards. With adjustable voltage thresholds and standstill times, it provides reliable motor standstill detection, making it ideal for manufacturing processes and safety control systems. Its durable design and low power consumption enhance efficiency and reduce environmental impact.
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Technical Specifications
- Supply voltage: 24 V DC (21.6 V ... 28.8 V)
- Residual ripple: 10%
- Maximum power consumption: ≤ 4 W
- 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 AC 15: NO 3 A/230 V AC, NC 1 A/230 V AC
- Switching capacity DC 13: 1 A/24 V DC
- Maximum switching frequency: ≤ 1200 operations/hour
- Mechanical life: ≥ 50 million switching operations
- Contact service life at 230 V / 5 A (AC): ≥ 200,000 switching operations
- Connection type: Spring terminals, plug-in spring terminals
- Conductor cross section: 0.5 mm² to 4 mm² single wire, 0.5 mm² to 2.5 mm² fine wire with ferrule
- 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) 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)
- Spring terminals and plug-in spring terminals for connection
- Motor voltage measuring encoder interface
- Supply voltage 24 V DC with max power consumption ≤ 4 W
- Adjustable voltage threshold from 20 mV to 400 mV
- Adjustable standstill time from 0.2 s to 6 s
- Relay outputs with 3 normally open and 1 normally closed positively guided contacts
- High mechanical and electrical contact life
- IP20 terminals and IP40 housing protection
- 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 automation safety monitoring
- Motor standstill detection in manufacturing processes
- Safety control systems requiring SIL 3 and PL e compliance
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Low power consumption of ≤ 4 W reduces energy usage
- Durable design with long mechanical life minimizes waste and replacement frequency
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK MOC3ZA-KAZ34D3 Safety-Related Motor Standstill Monitor is available for immediate purchase, ideal for industrial safety and automation applications.
