Product Overview

The Emerson KJ4006X1-BC1 (Part Number 12P4720X062) is a specialized 8-channel fused terminal block designed for the DeltaV™ M-series I/O subsystem. This component acts as the physical and electrical interface between field wiring and DeltaV I/O cards, providing essential overcurrent protection for each channel. Rated for up to 250 VAC and 2 Amps, it is engineered to facilitate secure point-to-point wiring while safeguarding the sensitive internal electronics of the Distributed Control System (DCS).

This terminal block features a mechanical rotary keying system, which is a critical safety feature that prevents the insertion of an incompatible I/O card into the slot. This "smart-keying" ensures that field voltage levels match the card's specifications, preventing hardware damage during commissioning or maintenance. The modular design allows for the addition or removal of terminal blocks without fully de-energizing the system carrier, provided standard safety procedures are followed.

Technical Characteristics and Environmental Resilience

Designed for longevity in high-stress industrial environments, the KJ4006X1-BC1 combines rugged mechanical construction with advanced electrical isolation.

• Integrated Circuit Protection: Each of the 8 channels is fused to isolate field-side faults, preventing localized overcurrent events from affecting the entire I/O subsystem.

• Mechanical Security: The integrated rotary keys are user-configurable to match specific card types, ensuring that only the correct I/O module can be seated.

• Thermal Endurance: Fully operational in a broad temperature spectrum from -40°C to +70°C, making it suitable for unconditioned field enclosures.

• Vibration and Shock Resistance: Built to withstand mechanical stress up to 10g of shock and persistent vibration, ideal for mounting near heavy processing equipment or rotating machinery.

• Corrosion Protection: Complies with ISA-S71.04-1985 G3 standards, offering protection against airborne contaminants and corrosive gases common in chemical plants and refineries.

• Field Power Capability: Supports field power circuits up to 60 VDC at 1 A per channel, accommodating a wide range of instrument loops and discrete devices.

Technical Specifications

• Manufacturer: Emerson (Fisher-Rosemount)

• Model Identification: KJ4006X1-BC1

• Order Reference: 12P4720X062

• Module Type: Fused 8-Channel Terminal Block

• Voltage Rating: 250 VAC

• Current Rating: 2.0 Amps (Fuse rating)

• System Series: DeltaV™ M-series

• Humidity: 5% to 95% (Non-condensing)

• Dimensions: 4.1 x 12.5 x 10.5 cm

• Unit Weight: 0.18 kg

• Product Origin: USA

Industrial Applications

The Emerson KJ4006X1-BC1 is a standard requirement for DeltaV installations across various infrastructure-heavy sectors:

• Oil and Gas: Secure termination for offshore platform safety and control loops.

• Chemical Refining: Reliable field connections in G3-rated corrosive atmospheres.

• Power Utilities: High-integrity wiring for boiler and turbine control systems.

• Water Management: Durable I/O termination for remote pumping and treatment stations.