Tense AT-2500 2500/5A 100mm Measurement Current Transformer
The Tense AT 2500 is an industrial grade, heavy duty current transformer (CT) engineered to step down massive primary alternating currents within main electrical service entrances and high capacity industrial substations. Featuring a standardized transformation ratio of 2500/5A, this robust device converts primary grid currents up to 2500 A into a scaled 0 5 A secondary output. This proportional low amperage signal provides highly precise, real time telemetry inputs for digital power monitors, heavy utility billing meters, and automated protection relay networks. Outfitted with an expansive 100 mm rectangular/busbar window opening, it is specifically built to accommodate ultra thick parallel cable configurations or large multi layered solid copper busbar trunks.
Key Features
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Ultra High Capacity Scaling: Delivers a reliable 2500/5A step down ratio, enabling safe instrumentation monitoring across main heavy industry distribution points.
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Expansive 100 mm Busbar Passage: Tailored with a broad rectangular internal window to allow clean, non invasive pass through installation over high ampacity main line busbars or dense multi conductor cable arrays.
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Hinged Safety Terminal Shrouds: Built with durable red protective flip top covers that completely isolate the secondary screw contacts (S1 and S2), ensuring field technicians are shielded from accidental shock hazards during panel routing.
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Flame Retardant Heavy Duty Casing: Encased in a rugged, self extinguishing polymer shell with distinct cooling ribs that guarantee superior dielectric strength and total thermal integrity during peak continuous electrical loads.
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Laser Serialized Tracking: Features a dedicated manufacturer identity label complete with clear polarization indicators (K-P1 path marking) and unique factory serialization for accurate asset tracking and maintenance compliance.
Technical Specifications
| Feature | Specification |
| Model / Series | AT-2500 |
| Brand / Manufacturer | Tense |
| Primary Rated Current (I_pn) | 2500 A |
| Secondary Rated Current (I_sn) | 5 A |
| Transformation Ratio | 2500/5A |
| Window Width / Clearance | 100 mm Profile (Rectangular busbar type) |
| Terminal Protection | Dual red hinged safety terminal shields |
| Application Segment | Automation Parts / Electrical Protection and Control |
Applications
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Main Switchgear Telemetry: Sourcing vital step down line metrics to centralized digital power management systems monitoring the incoming energy of mega scale manufacturing plants.
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Industrial Substation Sub Metering: Supplying line parameters to utility grade billing meters tracking energy footprints across massive foundry machinery, data centers, or smelting complexes.
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Global Power Factor Correction (PFC): Delivering high range real time current telemetry to automated reactive power controllers managing massive multi bank capacitor assemblies.
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Heavy Duty Protection Arrays: Supplying precise transformer currents to automated overcurrent protective relays to safely coordinate high voltage breaker trip sequences.






