Continuous Operation Engineering
Standard filter maintenance on live automated panel assemblies usually requires a full system shutdown to prevent open-circuit shocks on CT lines. To bypass this productivity bottleneck, this Pluggable Split-Module Connector introduces a two-part split architecture: a permanent panel-mounted base and a removable top filter cartridge. Maintenance personnel can inspect, pull, or replace the active filtering electronics on-site without disconnecting a single secondary conductor wire or disrupting current loop continuity.
Specialized Modular Technical Details
Fail-Safe Continuous Base Link: The heavy-duty socket foundation incorporates built-in bypass paths or sequential gold-plated link arrays. This arrangement keeps the underlying current transformer loop safely shorted or connected during plug-in and pull-out actions, eliminating open-circuit high-voltage hazards.
Premier Polycarbonate Base Injection: The core terminal housings are molded from our premier high-molecular polymer polycarbonate matrix. This compound ensures high tensile impact strength, prevents moisture absorption, and carries a UL94 V-0 flame-retardant rating.
Signature Composite Tool Terminals: All permanent wiring points on the base feature a composite combination slot screw setup. This ensures that field operators can use either flathead or Phillips-head screwdrivers to establish low-resistance connections on 0.5mm² to 4mm² copper cables.
Multi-Stage High-Attenuation Matrix: The pluggable module houses a high-efficiency multi-stage noise suppression array. It achieves a continuous insertion loss of ≥30dB across a wide frequency spectrum, cleaning up analog feeds for digital meters.
Technical Parameters
| Parameter | Value |
| Rated Current | 6 A continuous (suitable for 1 A / 5 A CT secondary) |
| Rated Voltage | 660 V AC (insulation) |
| Number of Channels | 3 (A‑N, B‑N, C‑N) |
| Construction | Split type: fixed base + pluggable filter top |
| Plug / Unplug Life | ≥500 cycles |
| Filter Topology | Low‑pass LC (optimized for CT signal bandwidth) |
| Insertion Loss (typical) | ≥30 dB (50 Hz – 1 MHz) |
| Phase Shift @ 50 Hz | ≤1° |
| Composite Error | ≤0.5 % |
| Wire Range (copper) | 0.5 mm² – 4 mm² |
| Terminal Type | Tubular screw (torque ≥0.5 N·m) |
| Housing Material | PC |
| Operating Temperature | -25 °C – +85 °C |
| Storage Temperature | -40 °C – +105 °C |
| Mounting | Panel mount (screw) or optional DIN‑rail adapter |
| Certifications | CE, RoHS, IEC 61869‑2 (accuracy) |
Targeted Field Applications
This modular plug-and-play block is highly recommended for smart-grid substation upgrades, automated production line control centers, and high-density relay racks where space is limited and downtime is costly.
Safety & Cycle Certifications
Designed to survive at least 500 mechanical plug/unplug cycles without contact degradation, this patented device is fully certified to CE and RoHS boundaries. Its low-impedance layout adds no extra burden to existing CT circuits, keeping meters fully accurate.
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