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Safety Relay SIL3 MOC3ZA-KAZ34A3 | Adjustable Voltage & Standstill Time | Compact DIN Rail Mount | by SICK
The Safety Relay SIL3 MOC3ZA-KAZ34A3 is designed for high integrity monitoring in industrial safety systems. With adjustable voltage thresholds and standstill time, it ensures reliable machine safety and automation control. Built for professionals, this relay features a robust design with a long mission time, making it ideal for applications requiring stringent safety standards.
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Technical Specifications
- Supply voltage: 230 V AC (184 V ... 253 V), 24 V DC for diagnostic outputs
- Residual ripple: 10%
- Maximum power consumption: ≤ 6 VA
- Measured motor voltage: ≤ 690 V AC
- Voltage threshold adjustable from 20 mV to 400 mV
- Standstill time adjustable from 0.2 s to 6 s
- Response time ≤ 100 ms
- Safety outputs: 3 normally open and 1 normally closed relay contacts
- Nominal switching voltage: 250 V AC
- Switching capacity: 3 A/230 V AC (NO), 1 A/230 V AC (NC)
- Maximum switching frequency: ≤ 1200 operations/hour
- Mechanical life: ≥ 50 million switching operations
- Enclosure rating: Terminals IP20, Housing IP40
- Mounting: 35 mm DIN rail according to EN 60715
- 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
- Mean probability of dangerous failure per hour (PFHD): 41 x 10^-9
- Mission time of 20 years
- Stop category 1 (EN 60204-1)
- Spring terminals for easy wiring
- Motor voltage measuring encoder interface
- Relay outputs with positively guided contacts
- Adjustable voltage threshold and standstill time
- High mechanical and electrical switching life
- Compact dimensions with 35 mm DIN rail mounting
Professional Installation Requirements
- Installation must be performed by a qualified electrician or technician familiar with safety relay systems and relevant safety standards.
Applications
- Industrial safety systems requiring high integrity level monitoring
- Machine safety for standstill detection
- Automation systems with safety-related control functions
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Long mission time reduces replacement frequency and waste
- Low power consumption (≤ 6 VA) minimizes energy use
- Durable design extends product lifecycle
Warranty Information
Standard manufacturer warranty applies; please refer to SICK's official warranty policy.
Available Now
The SICK MOC3ZA-KAZ34A3 safety relay is available for immediate purchase, ideal for industrial safety and automation applications requiring high safety integrity.
