Overview

The Eaton Crouse-Hinds series SD16R is an ultra-slim surge protection device engineered for safeguarding data and signal circuits in process control and automation systems. Rated for 16 Vdc continuous operation and equipped with hybrid multistage protection, the SD16R module delivers up to 20 kA surge current capacity in a compact 7 mm footprint, ensuring reliable defense against transient overvoltages in both safe and hazardous areas.

Key Features

• Ultra-slim 7 mm DIN-rail module for space-saving installation
• Hybrid multistage protection: up to 20 kA (8/20 µs) surge current capacity
• Continuous operating voltage (Uc): 16 Vdc
• Fast response time: < 1 ns
• Series resistance: 4.7 Ω per line
• Leakage current: < 5 µA
• High bandwidth: 50 MHz for high-speed data links
• Optical status indicator (LED) for real-time health check
• Certified intrinsically safe: ATEX Ex ia IIC T4 Ga, IECEx Ex ia IIC T4 Ga
• 10-year product warranty

Technical Specifications

Applications

• 4–20 mA loops, RTD and mV transmitters
• RS 232, RS 422, RS 485, Profibus, Modbus networks
• Industrial Ethernet and Fieldbus systems
• Fire & gas detection and emergency shutdown circuits
• Hazardous-area installations in oil & gas, petrochemical, and chemical plants