Product Short Description
Product Brief Introduction
Special matched wiring terminal block accessory for KJ3242X1-BA1 / KJ3242X1-BK1 H1 fieldbus modules, providing standardized termination for FOUNDATION Fieldbus H1 shielded cables. Integrated shielding aluminum bar and D6 anti-mismatch mechanical lock structure, realizes fast fieldbus wiring, signal shielding and strain relief functions, fully matched DeltaV S-series I/O system electrical and mechanical standards.
Description
Core Technical Performance Parameters
- Rated Fieldbus Circuit Voltage: 32VDC limited energy maximum
- Continuous Per-Terminal Current Rating: 500mA
- Applicable Wiring Wire Size: 0.5mm² ~ 1.5mm² solid or stranded copper cable
- Terminal Clamping Torque: 0.5 N·m
- Dielectric Withstand Voltage: 2000VAC between signal terminals and ground shielding frame
- Operating Ambient Temperature: -40°C ~ +70°C
- Single Unit Net Weight: 0.12kg
- Mechanical Matching Key Code: D6, incompatible with D4 serial interface terminal blocks
Functional Features
- Integrated full-length aluminum EMI shielding bar to connect all fieldbus cable shielding braids to cabinet protective earth, suppress industrial electromagnetic interference
- Independent separated terminal groups for H1 positive signal, negative signal and ground shield wiring
- Spring-cage quick wiring structure without screwdriver locking, convenient on-site wiring reconstruction
- D6 molded plastic mechanical lock to prevent mismatched assembly with serial interface module terminal bases
- Integrated cable strain relief buckle structure to avoid wire pull-off damage under cabinet long-term vibration
- Printed terminal pin definition labels on front surface for field maintenance reference
Working Principle
The terminal block mechanically locks onto the front connector of KJ3242X1 series H1 module, establishing gold-plated metal contact between module internal H1 transceivers and external fieldbus cables. Internal tinned copper bus bars isolate each signal circuit, while the external anodized aluminum shielding frame forms a unified ground shielding layer to filter high-frequency noise induced on fieldbus cables. Stainless steel spring clamps maintain constant compression force on wiring conductors to eliminate loose contact risk in vibration environments.
Material Composition & Structural Characteristics
- Terminal Housing: Flame-retardant PA66 black plastic, UL94 V-0 fire safety rating
- Conductive Bus Bar: Oxygen-free tinned copper with nickel anti-corrosion coating
- Shield Frame: Lightweight anodized aluminum alloy strip
- Spring Clamping Parts: Fatigue-resistant stainless steel springs
- Positioning Lock: Molded D6 plastic anti-mismatch key structure
Installation Requirements
- Align D6 key slot with H1 module front connector before pushing terminal block to full locked position
- All fieldbus cable shielding layers must connect to designated ground terminal on shielding bar
- Stranded conductors must install metal wire ferrules before inserting into spring cages to prevent strand scattering short circuit
- Only install inside IP20 industrial control cabinet, cannot be used in outdoor exposed environment
Application Scenarios
All DeltaV DCS control cabinet H1 fieldbus loop wiring termination occasions matched with KJ3242X1-BA1 and KJ3242X1-BK1 fieldbus communication modules, covering petrochemical, power generation, coal chemical and water treatment process automation industries.
Operation & Maintenance Precautions
- Terminal block disassembly must be performed after cutting off module backplane power supply; live disconnection will generate surge damage to H1 transceiver chips
- Strictly prohibit connecting AC power voltage signals to fieldbus signal terminals
- Use dry compressed air to clean dust accumulated on terminal contact surfaces every six months
- Do not cut or remove integrated aluminum shielding bar; broken shielding ground path will cause severe fieldbus communication failure
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