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.
Brand: Eaton (HF series T‑line current transformer)
Model: HF3A-50/5A, catalog no. 741B0011eaton+1
Type: Through‑hole current transformer for measurement circuits
Primary/secondary rating: S1–S2 50 A / 5 A (ratio 50/5A)
Rated apparent power (VA): 1 VA with accuracy classes 1 and 3 printed on label (CI 1–3, see photos)lemu
Frequency: 50–60 Hz (printed on label)eaton
System voltage: up to 0.72 kV, test voltage 3 kV (HF series standard)eaton
Standards/approvals: EN/IEC 61869-2, CE mark, KEMA KEUR approvalstandards.iteh+1
Origin: Label indicates Eaton Industries (Austria) GmbH, made in Romania (see photos).
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
Full technical data: See photos/label and datasheet for complete specification details.
New, never used industrial surplus.
Supplied in original Eaton cardboard box marked “Current Transformer”; box shows light storage wear only (scuffs, edge wear).
Transformer body and terminals appear clean, with no signs of installation.
Will be repacked securely inside an outer shipping carton to protect the original box.
HF3A series T‑line current transformer designed for metering and indication in low‑voltage distribution boards.eaton
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.
Please review the high‑resolution photos and label carefully to confirm ratings and approvals for your application.
