Product Description
PR 2238B4A
The PR electronics 2238B4A is a high-performance 4-channel digital input barrier designed for intrinsically safe (I.S.) applications. It serves as a reliable interface for transmitting signals from NAMUR sensors, mechanical switches, 2-wire RTDs, or potentiometers located in hazardous areas to control systems in a safe area. Each channel provides a single pole, single throw (SPST) relay output. Featuring 3-port galvanic isolation of 2.5 kVAC, this device ensures signal integrity and protects against transient noise and ground loops. The 2238B4A is SIL 2 certified according to IEC 61508, making it a trusted component for safety instrumented systems. Its compact, DIN rail mountable design allows for easy and space-efficient installation in control panels.
Technical Specifications:
- Model: 2238B4A
- Manufacturer: PR electronics
- Number of Channels: 4
- Input Type: NAMUR sensors (acc. to EN 60947-5-6), volt-free contacts, 2-wire RTDs, potentiometers
- Output Type: 4 x SPST relay
- Supply Voltage: 20.4…28.8 VDC
- Isolation: 3-port / 2.5 kVAC
- Safety Integrity Level: SIL 2 certified (Full Assessment)
PR 2238B4A
Discover the PR electronics 2238B4A, a reliable 4-channel digital input barrier for intrinsically safe (I.S.) applications. This SIL 2 certified interface connects NAMUR sensors and switches from hazardous areas, providing four SPST relay outputs and 2.5 kVAC galvanic isolation.
