SM76 – Busbar Support Insulator (with Screw)

Function: Electrically insulates and mechanically supports copper or aluminum busbars in switchgear, panels, and distribution boards.

Key Specifications:

• Height: 76 mm
• Diameter: 50 mm
• Thread Size: M10 (standard), also available in M8 or M12
• Thread Depth: 13.5–20 mm
• Material: DMC or SMC (flame-retardant resin)
• Insert Material: Brass or zinc-coated steel
• Rated Voltage: 660V–1500V AC
• Withstand Voltage: Up to 25 kV
• Tensile Strength: ≥4000 N
• Bending Strength: ≥5000 N
• Insulation Resistance: >1500 MΩ
• Temperature Range: -40°C to +140°C
• Flammability Rating: UL94-V0
• Color: Typically red

Features:

• High dielectric and mechanical strength
• Flame-retardant and moisture-resistant
• Pre-installed screw insert for easy mounting
• Suitable for vertical or horizontal busbar support
• Complies with CE, RoHS, and IEC standards

Applications:

• Power distribution cabinets
• Switchgear and control panels
• Renewable energy systems
• Frequency converters and inverters