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