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LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
  • LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5
LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5

LMHK-612 (60×120 mm Window) Clamp / Split-Core Current Transformer • 3000/5A • Accuracy Class 0.5

GH₵1,300.00 GH₵1,500.00

Product Description

Overview

The LMHK-612 3000/5A Accuracy Class 0.5 is a high-capacity current transformer designed for heavy electrical systems where precise measurement is needed. With a primary current rating of 3000 A AC and a secondary output of 5 A, coupled with ±0.5% accuracy, this CT is ideal for metering, monitoring, protection, and energy management in large commercial / industrial installations. The large aperture (approx. 60×120 mm) allows it to accommodate oversized conductors or busbars without the need to disconnect them — making installation simpler and less disruptive.

Key Features

  • Primary Current: 3000 A AC

  • Secondary Current: 5 A AC — giving a 3000:5 ratio

  • Accuracy Class: 0.5 (±0.5%) under rated load / within specified burden

  • Window (Inner Aperture) Size: ~ 60 × 120 mm — suitable for large busbars or cable bundles

  • Type / Design: Split-core (clamp-on) style with release / clamp mechanism so it can be installed without shutting down the primary conductor

  • Housing & Materials: Typical HK-series materials — flame-retardant plastics (e.g. PC or similar, often UL94-V0 rated), appropriate core material (silicon steel or equivalent)

  • Frequency Range: Generally 50-400 Hz (per HK-series spec)

  • Operational Temperature Range: Approx. −25°C to +75°C typical for HK models

  • Insulation & Safety: Dielectric strength around 2.5 kV / 1 mA / 1 min (or as per spec), good insulation resistance, moisture protection

Technical Specifications (Expected / Comparable values)

Specification Typical / Expected Value
Ratio 3000 : 5 A
Accuracy Class 0.50 (±0.5%)
Window Size ~ 60 mm × 120 mm aperture
Burden (VA) Likely 15 VA for class-0.5 at this level (but verify from manufacturer)
Measuring Range Often 10% In to ~120% In with small error in this class
Dielectric Voltage Test ~2.5 kV AC for 1 minute (common in HK series)
Materials Flame-retardant plastic housing, core of silicon steel, internal support epoxy or PBT bobbin / tie materials
Frequency 50 / 60 Hz standard; spec may allow broader (up to 400 Hz) in some HK series variants
Operating Temperature -25 °C to +75 °C (ambient)
Output Terminals / Connections Usually screw/screw-terminal / clamp type suitable for measurement devices or metering panels

Applications

  • High current monitoring in large switchgear, transformer feeders, busbars

  • Precision metering / energy management in industrial / commercial power systems

  • Retrofit projects where conductor continuity / uptime is important (split-core design allows installation without disconnecting primary)

  • Use in power quality, monitoring, protection and load balancing systems

Installation & Safety Notes

  • Ensure busbars or conductors fit through the 60×120 mm aperture without bending or damaging insulation

  • Always connect secondary side to a measurement device or burden; never leave secondary open when primary is carrying current

  • Clamp / split-core must be completely closed and secured to avoid measurement error and ensure safety

  • Avoid external magnetic fields or interference that can distort readings

  • Keep away from moisture, extreme temperatures beyond rated spec; ensure adequacy of insulation and enclosure per local electrical codes

Benefits

  • High precision (0.5%) gives reliable readings essential for billing, auditing, or critical monitoring

  • Large aperture allows handling of thick conductors or busbars without system disruption

  • Split-core design enables easier and safer installation and maintenance

  • Built with durable materials and safety features, reducing long term maintenance

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