897H-G231

The galvanic isolators 897H-G231 are active protective interface assemblies to isolate intrinsically safe circuits from non  ntrinsically safe circuits to worldwide standards. Galvanic isolators 897H-G231 offer economical solutions for instrumentation and control systems in hazardous locations.

Unlike zener diode barriers, galvanic isolators do not require grounding.

Allen-Bradley's galvanic isolators 897H-G231 provide 1500 volt isolation between hazardous area and non hazardous area terminals and 500 volt isolation between input/output and external power terminals.

DIP 897H-G231 switches provide convenient programming for output or diagnostic functions. Multiple LEDs allow easy visual indication of module and circuit status.

Wiring for intrinsically safe systems must be identified as such through the use of light blue jacketing and/or through appropriate labels. Such labels are required by NEC Article 504 and ANSI/ISA 897H-G231 RP-12.6 to be placed at no more than 25 foot intervals. When installing intrinsically safe equipment the user should refer to all relevant national standards and/or those standards set forth by the "authority having jurisdiction" at the installation site.