Holec HF4B current transformer for measuring up to 400 A primary current with a 5 A secondary output. New, never used unit suitable for panel and switchgear measurement and protection applications.
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Brand: Holec / Eaton HF series (label marked HOLEC HH Denmark)
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Model: HF4B 400/5A (see photos/label for full specs)
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Type: Through‑hole current transformer for measurement/protection circuits
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Primary/secondary rating: S1–S2 400 A / 5 A
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Rated apparent power (VA): 7.5 / 10 / 15 VA, accuracy classes 0.5 / 1 / 3 as shown on front labellemu
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Frequency: 50–60 Hz (printed on label)eaton
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System voltage: up to 0.72 kV (printed “kV 0.72/3/– Hz 50–60”)dijkman
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Standards/approvals: IEC 60044-1, CE mark, KEMA KEUR approvalbd+1
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Origin: Marked “DENMARK” on the housing
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Core style: Solid through‑hole core with ribbed opening for cable or busbar (see photos for dimensions)bels
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Mounting: Snap‑mount / panel-mount design typical of HF4B series (refer to photos and datasheet for exact mounting details)avxperten+1
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Full technical data: See photos/label for complete specification details.
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New, never used industrial surplus.
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No signs of installation; terminal screws and housing appear clean.
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Minor shelf/storage marks or light dust on casing may be present.
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Supplied without original retail packaging; will be securely packed for shipment.
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Eaton/Holec HF4B 400/5A CT, part of the HF series T‑line current transformers, designed for accurate current measurement in low‑voltage distribution boards and metering panels.onninen+1
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Suitable as a replacement or spare for existing HF4B installations; please verify ratio, burden, and accuracy class against your application before purchase.
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Please review the high‑resolution photos and nameplate carefully to confirm ratings and approvals prior to ordering.
