KSD211B101 3BHE022455R1101 | ABB Excitation Controller Module

Product Overview

The ABB KSD211B101 3BHE022455R1101 is a precision-engineered input coupling unit designed for use in generator excitation systems and ABB AC 800M / 800xA control environments. It ensures accurate signal isolation and conversion, allowing seamless integration between field instrumentation and control platforms.

Developed for demanding industrial and power generation applications, the KSD211B101 maintains high performance even in harsh electrical environments. Moreover, its design includes advanced excitation control features, enabling fine voltage regulation, current monitoring, and protection functions critical to maintaining stable generator operation.

Technical Specifications

Model: KSD211B101
Part Number: 3BHE022455R1101
Type: Input Coupling Unit (ICU) / Excitation Controller
System Compatibility: ABB AC 800M / 800xA control systems
Input Power Supply: 85–265 V AC (50/60 Hz) or 90–300 V DC
Rated Field Voltage: 110 V DC (other ratings available)
Rated Field Current: 6.5 A DC (standard)
Voltage Regulation Range: 70–130% of generator rated voltage
Voltage Regulation Accuracy: ±0.5% of set value
Communication Protocols: Modbus RTU (RS-485), CANopen (optional)
Protective Functions: Over-excitation, under-excitation, V/Hz limiter, loss of sensing
Isolation: Galvanic isolation for field and control signals
Dimensions (L × W × H): 120 × 50 × 165 mm
Weight: 0.5 kg
Country of Origin: Switzerland
Customs Tariff Code: 85437000
Application Areas: Generator excitation systems, hazardous area signal interfacing, industrial automation

FAQ

Q1: What is the main function of the ABB KSD211B101?
A1: It acts as an input coupling unit that converts and isolates analog field signals for ABB control systems.

Q2: Can this module be used as an excitation controller?
A2: Yes, in certain configurations it functions as an excitation controller with voltage and current regulation features.

Q3: Does it support communication protocols like Modbus or CANopen?
A3: Yes, the KSD211B101 supports Modbus RTU via RS-485 and optional CANopen communication.

Q4: What protection functions are included?
A4: It includes over-excitation, under-excitation, voltage-frequency limitation, and loss-of-sensing protection.

Q5: Is the unit suitable for hazardous environments?
A5: Yes, it provides galvanic isolation and complies with intrinsic safety standards, ideal for hazardous zone applications.