Tense ATM-50C 50/5A Measurement Current Transformer
The Tense ATM-50C is a professional-grade, compact measurement current transformer (CT) engineered to step down high primary currents for safe monitoring by ammeters, energy meters, and automation controllers. Featuring a transformation ratio of 50/5A, this transformer converts an alternating current up to 50 A passing through its central window into a proportional 0–5 A secondary current. Outfitted with a 20 mm circular hole diameter, it allows clean drop-in deployment directly over standard insulated electrical cables and distribution wiring.
Key Features
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Precision Current Step-Down: Delivers a reliable 50/5A conversion ratio, enabling accurate real-time current telemetry for low-voltage power networks.
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20 mm Circular Window: Features a clean internal passage optimized for quick, non-invasive installation over heavy-gauge insulated copper or aluminum wires.
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Integrated Terminal Safety Shielding: Outfitted with a clear, hinged plastic flip-top cover protecting the secondary terminals (S1 and S2) to guard operators against accidental contact.
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Robust Flame-Retardant Casing: Enclosed in a compact, durable, self-extinguishing polymer body that withstands the high thermal conditions of active panelboard environments.
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Flexible Mounting Brackets: Designed with integrated base flanges and retention hardware slots to support simple horizontal or vertical fastening within electrical control cabinets.
Technical Specifications
| Feature | Specification |
| Model / Part Number | ATM-50C |
| Brand / Manufacturer | Tense |
| Primary Current Rating (I pn) | 50 A |
| Secondary Current Rating (I sn) | 5 A |
| Transformation Ratio | 50/5A |
| Window / Borehole Dimension | 20mm (Circular) |
| Terminal Protection | Hinged transparent safety terminal shield |
| Application Segment | Automation Parts / Electrical Measurement & Protection |
Applications
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Main Switchgear Ammeter Feeders: Providing stepping metrics to analog or digital panel ammeters inside centralized commercial distribution boards.
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Energy Consumption Monitoring: Sourcing proportional current lines for sub-metering systems and energy management units tracking building utility use.
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Motor Control Centers (MCC): Monitoring the current draw of commercial pumps, heavy ventilation fans, and industrial assembly systems to track active load profiles.
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PLC and Relay Automation Systems: Interfacing with multi-channel current transducer modules to deliver operational telemetry data to industrial automation networks.
