Product Description

Overview

The Emerson KJ1501X1-BC3 is a precision-engineered dual DC power supply and S-Series Local I/O Bus Extender designed for DeltaV™ Distributed Control Systems (DCS). It enables reliable signal and power distribution across multiple I/O carriers, ensuring seamless high-speed communication for critical process control environments.

This module is essential for extending LocalBus connectivity when system expansions exceed a single carrier’s capacity, preserving data integrity while supporting demanding industrial conditions.

Key Features

High-Speed LocalBus Integrity
Maintains robust communication across extended I/O carriers with minimal latency and signal degradation, ensuring accurate real-time data flow from field devices to controllers.

Power Distribution Efficiency
Provides multiple regulated DC outputs to connected I/O modules with precise voltage management. Supports both 12 VDC and 24 VDC inputs, delivering stable power to each module in extended configurations.

Industrial Reliability
Engineered for harsh operational environments:

• Operating Temperature: -40°C to 70°C

• Shock: 10g, 11 ms half-sine wave

• Vibration: 1 mm peak (2–13.2 Hz), 0.7g (13.2–150 Hz)

• Airborne Contaminants: ISA-S71.04 Class G3

• Humidity: 5%–95% non-condensing

Compact Modular Design
Mounts on the right-hand side of standard DeltaV I/O carriers, allowing straightforward installation with minimal cabinet footprint.

Safety and Compliance
Certified for hazardous locations including ATEX, IECEx, and North American Class 1 Div 2, ensuring safe operation in chemical and refinery environments.

Technical Specifications

Applications

• Expanding DeltaV S-Series I/O configurations

• High-reliability process control in chemical, oil & gas, and manufacturing

• Connecting multiple I/O carriers while maintaining LocalBus performance

FAQ

Q: Can this module be replaced while the system is powered?
A: No, hot-swapping is not supported; the system must be powered down before removal or installation.

Q: Does it require regular calibration?
A: No calibration is necessary; it is factory-ready for immediate deployment.

Q: Can the combined 5.1V and 3.4V outputs support more than 10.2 W?
A: No, the total combined output is limited to 10.2 W to maintain safe operation.

Q: How does it compare to KJ1501X1-BC2?
A: The BC3 version supports higher DC output currents and enhanced G3 environmental protection.