Products
Products
ABB Allen-Bradley ADEPT Alfa Laval
All Categories
ALSTOM AMAT B&R BACHMANN BENTLY Bosch Rexroth BAILEY CUTLER-HAMMER DEIF DANAHER Enterasys Extreme EATON ELAU EMERSON EPRO FANUC FOXBORO GE HIMA Honey Well ICSTriplex IFM Kollmorgen SIEMENS Schneider WOODWARD YASKAWA Omron YOKOGAWA MOOG MOTOROLA NI RELIANCE Rexroth SEW TRICONEX Schenider Weidmueller Mitsubishi SICK FISHER
home
AAI141-S50

The Yokogawa AAI141-S50 is a single-channel, non-isolating (zener) safety barrier designed for basic intrinsic safety (IS) protection. It safeguards hazardous areas by utilizing zener diodes and resistors to clamp voltage and limit current to safe levels. This cost-effective model is specifically designed for 4-20 mA two-wire transmitters and provides a pass-through of the current signal to the control system in the safe area. The "-S50" suffix indicates it is designed for mounting on a standard 35mm DIN rail.

open
TEL：+86 13600179521
Mail：info@hongkongeasy.com
info@hongkongeasy.com
WhatsApp
Parameters
Request a Quote
Return to List
(Detailed Parameters/Specifications)
Category Parameter Specification for Model AAI141-S50
General Manufacturer Yokogawa Electric Corporation
Model AAI141-S50
Type Non-Isolating Safety Barrier (Zener Barrier)
Mounting DIN Rail Mount (35mm standard)
Approval ATEX, IECEx, NEPSI (Standard for intrinsic safety)
Isolation None (Non-isolating)
Input (Field Side - Hazardous Area) Signal Type 4 to 20 mA DC (2-wire transmitter)
Intrinsic Safety (IS) Parameters Ui = 28V, Ii = 93mA, Pi = 0.65W, Ci = 83nF, Li = 4.2mH
(Defines the maximum energy allowed into hazardous area)
Maximum Loop Resistance Limited by the safe area power supply and barrier resistance
Output (System Side - Safe Area) Signal Type 4 to 20 mA DC (Same as input, non-isolated)
Load Resistance Limited by the safe area power supply and barrier resistance
Power Supply (Safe Area) Requirement A certified IS power supply is REQUIRED
Power Direction Reverse polarity protection (typically external)
Performance Accuracy ±0.1% of span (Essentially no error introduced by barrier)
Operating Temperature -20 to +70°C
Voltage Drop Approximately 7-9 V (typical for zener barriers)