CH3-12KV/150 Contact Box 630-1250A

  • Current Flexibility:Supports 630–1250 A range
  • Surge Resilience:Withstands 25 kA/4 s short-time & 63 kA peak currents
  • Insulation Protection:42 kV power-frequency & 75 kV lightning-impulse ratings
  • Sealed Design:IP67 dust-proof and waterproof construction
  • Temperature Tolerance:Operates reliably from –40 °C to +40 °C
  • Modular Installation:Plug-and-play design for quick assembly
  • Resin Construction:High mechanical strength epoxy resin body
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The CH3-12KV/150 630–1250A contact box is molded from high-strength epoxy resin, rated for 12 kV voltage and 630–1250 A current. It withstands short-time currents of 25 kA for 4 s and peak currents of 63 kA, with outstanding insulation levels of 42 kV (1 min power-frequency withstand) and 75 kV (lightning impulse withstand). With an IP67 protection rating and an ambient temperature range of –40 ℃ to +40 ℃, it offers robust defense against moisture, dust, and corrosive agents, guaranteeing safe and reliable operation.

 

The CH3-12KV/150 contact box is compatible with medium- and high-voltage switchgear, ideal for GIS, compact substations, mining, and rail transit applications. Its modular design simplifies installation and maintenance, while the high-performance epoxy resin material enhances mechanical strength and maintains long-term insulation integrity. The IP67 rating ensures continuous, stable operation in outdoor and humid environments. This product is the perfect solution to meet the high reliability and safety requirements of modern power systems.

Product parameters
Type CH3-12KV/150 630~1250A
Rated Current 630~1250A
Rated Voltage 12kV
Rated Short-time Withstand Current 25kA/4s
Rated Peak Withstand Current 63kA
Insulation Level 42kV (Power Frequency Withstand Voltage) / 75kV (Lightning Impulse Withstand Voltage)
Material Epoxy Resin
Ambient Temperature Range -40℃ ~ +40℃
Protection Level IP67
Size/Installation

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Suitable for substations, industrial power grids, new energy projects and other demanding scenarios
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