KJ4001X1-HB1 | Emerson DeltaV | 12P0830X072 Localbus Right Extender

Overview

The Emerson KJ4001X1-HB1 is a LocalBus Right Extender for DeltaV™ M-series and S-series I/O subsystems. It electrically and mechanically extends the LocalBus, allowing I/O carriers to be mounted on adjacent DIN rails or around physical obstacles while maintaining reliable communication and power distribution.

Technical Specifications

• Manufacturer: Emerson
• Model: KJ4001X1-HB1
• Also Known As: 12P0830X072
• Type: LocalBus Right Extender
• Local Bus Power: 12 VDC at 8 A (maximum)
• Voltage: 12.6 VDC nominal
• Maximum System Length: 6.5 m (combined carriers + extenders)
• Weight: 0.13 – 0.29 kg
• Dimensions: 4.7 × 16.6 × 6.7 cm

Environmental & Safety Ratings

• Operating Temperature: −40 °C to +70 °C
• Shock: 10 g, ½ sine wave for 11 ms
• Vibration: 1 mm p-p (2–13.2 Hz); 0.7 g (13.2–150 Hz)
• Relative Humidity: 5 % – 95 % non-condensing
• Airborne Contaminants: ISA-S71.04-1985 Class G3
• Hazardous Area: ATEX II 3G Ex ec IIC Gc; Class I Div. 2; Zone 2 AEx/Ex ec IIC Gc
• Certifications: ATEX, IECEx, FM, UKEX

Key Features

• Extends LocalBus to the right side of a carrier row
• High current capacity (8 A) supports fully loaded I/O carriers
• Compact, lightweight design for flexible cabinet layouts
• Hazardous-area certified for global deployment

FAQ

Q: When should I use the HB1 instead of a direct carrier connection?
A: Use it when carriers cannot be mounted side-by-side or when jumping to a different DIN rail row. It acts as the exit point to connect a LocalBus cable to a Left Extender (KJ4001X1-HC1) on another rail.

Q: Can this be replaced while the system is live?
A: No. Power must be de-energized before removal or insertion to prevent LocalBus damage and spark hazards.

Q: What is the maximum cable run?
A: The total combined length of all carriers and extenders must not exceed 6.5 meters.

Installation Guidelines

1. Mount the extender on the right end of the carrier row.
2. Connect the LocalBus cable to the next row’s Left Extender (KJ4001X1-HC1).
3. Ensure interconnecting cables between enclosures are routed in conduit.
4. Do not exceed 6.5 m total LocalBus length.

Selection Tips

• Order KJ4001X1-HB1 for right-side LocalBus extension; pair with KJ4001X1-HC1 for left-side entry.
• Count total I/O modules to confirm 8 A capacity is sufficient.
• For Zone 2 installations, verify ATEX/IECEx markings on the product label.