Eaton HF3A current transformer, model 741B0011, for measuring up to 50 A primary current with a 5 A secondary output. New, unused unit supplied in original Eaton box, ideal for switchboard and panel metering applications.
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Brand: Eaton (HF series T‑line current transformer)
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Model: HF3A-50/5A, catalog no. 741B0011eaton+1
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Type: Through‑hole current transformer for measurement circuits
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Primary/secondary rating: S1–S2 50 A / 5 A (ratio 50/5A)
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Rated apparent power (VA): 1 VA with accuracy classes 1 and 3 printed on label (CI 1–3, see photos)lemu
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Frequency: 50–60 Hz (printed on label)eaton
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System voltage: up to 0.72 kV, test voltage 3 kV (HF series standard)eaton
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Standards/approvals: EN/IEC 61869-2, CE mark, KEMA KEUR approvalstandards.iteh+1
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Origin: Label indicates Eaton Industries (Austria) GmbH, made in Romania (see photos).
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Core style: Compact solid core with small circular opening for cable or small busbar (see photos for dimensions; datasheet gives 17 mm opening diameter).eaton+1
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Full technical data: See photos/label and datasheet for complete specification details.
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New, never used industrial surplus.
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Supplied in original Eaton cardboard box marked “Current Transformer”; box shows light storage wear only (scuffs, edge wear).
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Transformer body and terminals appear clean, with no signs of installation.
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Will be repacked securely inside an outer shipping carton to protect the original box.
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HF3A series T‑line current transformer designed for metering and indication in low‑voltage distribution boards.eaton
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Suitable for use with energy meters, ammeters, and monitoring relays requiring a 5 A secondary current; please verify ratio and burden against your meter before purchase.
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Please review the high‑resolution photos and label carefully to confirm ratings and approvals for your application.
