KJ3007X1-EA1 | Emerson | DeltaV Profibus DP Terminal Block

Product Overview

The Emerson KJ3007X1-EA1 serves as a specialized Profibus DP Terminal Block within the DeltaV™ Distributed Control System (DCS) infrastructure. This component provides the critical physical interface for Profibus DP segments, facilitating high-speed data exchange between the DeltaV controller and decentralized field devices. Engineered for maximum signal integrity, it ensures stable network performance in complex industrial topologies. We supply this unit as 100% Brand New and Original, maintaining the factory-certified specifications required for mission-critical communication loops.

Technical Specifications

The KJ3007X1-EA1 combines low power consumption with extreme environmental resilience to ensure network uptime.

• Input Power Rating: 5 VDC @ 100mA

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

• Airborne Contaminants: ISA-S71.04-1985 Class G3 (Harsh Environment)

• Shock Resistance: 10 g half-sine wave for 11 ms

• Vibration Resistance: 1 mm P-P (2 to 13.2 Hz); 0.7 g (13.2 to 150 Hz)

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

• Dimensions: 5.1 cm x 14.0 cm x 19.1 cm

• Weight: 0.2 kg

Engineering Advantages

• G3-Rated Corrosive Protection: The KJ3007X1-EA1 carries an ISA-S71.04 Class G3 rating. This specialized coating shields the Profibus communication traces and contacts from corrosive gases such as Hydrogen Sulfide ($H_2S$) and Chlorine. This prevents the oxidation and "whiskering" that frequently cause intermittent bus faults in petrochemical and wastewater facilities.

• Thermal Hardening for Remote Enclosures: An operational range of -40°C to +70°C permits installation in unconditioned remote instrument enclosures (RIEs). The module maintains timing accuracy and signal strength regardless of extreme arctic or desert ambient conditions.

• High-Vibration Tolerance: The hardware withstands 0.7 g of continuous vibration and 10 g of shock. This mechanical durability ensures that the Profibus cable terminations remain secure even when the terminal block is mounted near heavy rotating equipment or high-pressure turbines.

• Low-Power Logic Interface: Drawing only 100mA at 5 VDC, the module places minimal thermal load on the DeltaV carrier. This low power profile allows for high-density rack configurations without exceeding the thermal limits of the cabinet.

• Standardized Profibus Termination: The terminal block simplifies the wiring of shielded twisted-pair Profibus cables. It ensures consistent impedance matching and grounding, which minimizes signal reflections and electromagnetic interference (EMI) across the network segment.

FAQs

Q: Is this KJ3007X1-EA1 unit a "New-Surplus" or refurbished item?

A: No. We supply only 100% Brand New and Original Emerson hardware. Each unit ships in its original factory packaging with verified serial numbers and intact anti-static protection, ensuring it meets all current performance and safety benchmarks.

Q: Does this terminal block include built-in Profibus termination resistors?

A: The KJ3007X1-EA1 provides the connection point. You must ensure that the Profibus segment is terminated at both physical ends according to Profibus DP standards, typically using the switchable termination on the D-sub connector or a dedicated active terminator.

Q: What is the typical maintenance requirement for this module?

A: This module utilizes a solid-state, maintenance-free design. It requires no periodic calibration or adjustment. We recommend periodic visual inspections of the physical cable terminations to ensure they remain tight in high-vibration applications.

Q: Can I use this terminal block in offshore applications?

A: Yes. The G3-rated coating and wide temperature range make the KJ3007X1-EA1 ideal for offshore platforms and coastal facilities where salt-laden air and high humidity typically degrade standard communication hardware.