ABB 200-IT8: High-Density Thermocouple Input Module

The ABB 200-IT8 provides eight isolated thermocouple input channels. This module supports J, K, T, and S thermocouple types. It also accepts millivolt (mV) signals for versatile field integration.

Key Technical Specifications of ABB 200-IT8

This ABB 200-IT8 module measures 12.2 cm in width. Its total depth equals 14.5 cm. The unit weighs approximately 0.35 kg. A green LED shows the power status. Meanwhile, a red LED indicates any channel fault condition.

Energy Storage and Electrical Isolation

Built‑in energy storage capacitors preserve calibration data. These capacitors survive momentary power interruptions reliably. The module provides 1500Vrms isolation between channels. It also isolates each channel from the system backplane. This design effectively prevents ground loops.

Connectivity, Power, and Mounting

A single 28‑pin spring‑type terminal block handles all field wiring. The ABB 200-IT8 draws 220 mA from the 5V backplane supply. Maximum thermal dissipation reaches only 1.8W. You can mount this unit into any standard ABB I/O rack slot.

Measurement Accuracy and Update Rate

The 16‑bit ADC delivers precise temperature readings. For a K‑type thermocouple, system accuracy reaches ±0.1%. The ABB 200-IT8 refreshes all eight input values every 400 ms. Therefore, real‑time temperature monitoring remains highly responsive.