The MS3704SW is a high-performance, slim plug-in high-level signal conditioner (isolator) designed for precise industrial process control and automation systems. Featuring a space-saving 29mm wide housing optimized for wall or DIN rail mounting, this versatile instrument accepts a 1-5V DC voltage or 4-20mA DC current loop input and converts it into an isolated dual output. Engineered with comprehensive 4-way isolation (Input to Output 1 to Output 2 to Power) rated for a 2000V AC dielectric strength, the MS3704SW ensures exceptional signal integrity, robust noise immunity, and reliable ground loop elimination in demanding factory environments. With integrated front and rear selector switches, engineering teams can seamlessly match input and output configurations to local instrumentation requirements without requiring entirely separate hardware models.
Key Product Features
- Field-Selectable I/O Configurations: Built-in selector switches allow easy setting of either 1-5V DC or 4-20mA DC signals for both the input and dual isolated outputs.
- Robust 4-Way Galvanic Isolation: Provides complete 4-way isolation between input, output 1, output 2, and power channels, featuring a 2000V AC dielectric strength for 1 minute to prevent ground loop propagation.
- High-Accuracy Signal Processing: Delivers an accuracy rating better than ±0.1% of span (at 25°C ±5°C) and a rapid response time of 85ms maximum (0 to 90%) for dynamic control loops.
- Integrated Burnout Protection: Selectable upscale or downscale burnout protection for voltage inputs, safeguarding downstream systems during open-circuit faults.
- Compact, Industrial-Grade Build: Enclosed in a UL 94V-0 rated ABS resin housing with reliable M3.5 screw terminal connections, measuring only W29 × H86 × D125 mm for maximum DIN rail density.





