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SD833

Key Features & Benefits
Safety-Certified Performance

SIL3 (IEC 61508) / PLe (ISO 13849-1) certified

Dual-channel monitoring with cross-circuit detection

100% mechanical forcibly guided contacts

Flexible Safety Configurations

2 safety inputs (NC/NO configurable)

2 safety outputs (semiconductor + mechanical)

1 auxiliary output for status monitoring

Industrial Durability

-25°C to +55°C operating temperature

50 million mechanical operations

Vibration resistant (5-500Hz, 5g)

Easy Integration

Compact 22.5mm width design

Direct mounting on DIN rail (EN 60715)

Visual LED status indicators

Technical Specifications
Parameter Specification
Safety Standards SIL3, PLe, Cat.4
Input Voltage 24V DC (19.2-28.8V)
Contact Rating 5A @ 250V AC (mechanical contacts)
Response Time <20ms
Max. Switching Freq. 1Hz
Certifications TÜV, UL, CE, cULus
Typical Applications
✔ Emergency stop circuits
✔ Safety gate monitoring
✔ Light curtain interfaces
✔ Two-hand control systems
✔ Press and molding machine safety

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The ABB SD833 is an advanced safety relay module designed for critical machine safety applications. This SIL3/PLe certified module provides reliable safety circuit monitoring and control for industrial equipment, ensuring compliance with international safety standards.