ABB AI581-S Analog Input Module

Series#: ABB

Product Details

AI581-S – High-integrity S500-S Safety Analog Input Module for SIL2/SIL3 applications.
4-channel 4..20mA input with 14-bit resolution, ideal for precise process monitoring in safety loops.
24VDC powered, 2-wire transmitter compatible, reducing wiring complexity.
Compact IP20 housing (67.5 x 76 x 62 mm) designed for space-saving DIN-rail mounting.
Integrated into ABB’s S500-S distributed safety I/O platform for scalable, fail-safe automation.
100% Original product. We provide efficient, traceable, and secure global shipping solutions.

Specification

The AI581-S is a dedicated safety analog input module within the ABB S500-S platform, engineered to provide four galvanically isolated 4..20mA current loop inputs with 14-bit resolution. Rated for SIL2 and SIL3 environments per IEC 61508, this module supports 2-wire transmitter connections and requires a 24VDC supply. Its robust design ensures reliable signal acquisition in critical process safety applications, from chemical plants to power generation. The compact IP20 housing simplifies integration into existing cabinets, while the module’s low weight (0.125 kg) and small footprint minimize panel space.

Specification	Detail
Product Type	Safety Analog Input Module
Model	AI581-S
Function	4 SAI (Safety Analog Inputs), SIL2/SIL3, 4..20mA, 14-bit, 24VDC
Analog Inputs	4
Resolution	14-bit (Analog Input)
Input Signal Range	4..20 mA (2-wire)
Safety Integrity Level	SIL 2 (IEC 61508)
Degree of Protection	IP20 (Housing)
Product Net Weight	0.125 kg
Product Dimensions (W x H x D)	67.5 mm x 76 mm x 62 mm
Package Level 1 Dimensions (L x W x H)	84 mm x 71 mm x 72 mm
Gross Weight (Packaged)	0.155 kg
Supply Voltage	24 VDC
System Platform	S500-S (Distributed Safety I/O)
eClass	27-24-22-02
ETIM 8	EC001420 – PLC analogue I/O-module
UNSPSC	32151802
WEEE Category	5. Small Equipment (≤50 cm)
SCIP Number	39206d4d-27ae-4fea-9f02-188f1f9f43e2 (DE)