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4 Pin Plug 300A | Quick Release & IP55 Rated | Stainless Steel by Ausproof

BRAND: Ausproof
SKU: RS1521
$1,482.30 List price: $1,841.00
+
4 Pin Plug with 300A current rating and IP55 ingress protection—ideal for mining and hazardous environments. Built for commercial applications, featuring quick release and durable stainless steel construction for reliable performance.

Product Name/Title: PL 3300V 300A 4 Pin Plug (270) 25-C 45-50-G (241.3)

Brand: Ausproof

SKU: RS1521

Alternatively Known As: Ex-certified 4 Pin Plug, Mining Plug, Flameproof Plug, Quick Release Plug

Technical Specifications
  • Voltage: 660V to 3300V
  • Current Rating: 300A to 425A
  • Material: Stainless Steel
  • Ingress Protection: IP55
  • Through Fault Current (Phase): 2 tests of 25.0kA for 0.2 seconds
  • Through Fault Current (Earth): 2 tests of 8.0kA for 0.2 seconds
  • AC HV Withstand (Phase): 8.6kV for one minute
  • AC HV Withstand (Pilot): 1.0kV for one minute
  • Temperature Rise: Rated for 300A and 425A
  • Weight: 9.0 kg
  • Dimensions (H x L x W): 200mm x 250mm x 150mm
  • Weight: 9.0 kg
Key Features
  • Quick Release
  • Single piece contacts to prevent hot joints
  • Easy termination
  • Easy flameproof repair
  • Full solid earth connectivity throughout product
  • Full phase to phase segregation with earth
  • Lightest Ex product on the market
  • Silicone Protection Cover
  • Stainless steel Hanging Plate for Back-to-Back (B2B) receptacles
Professional Installation Requirements
  • Installation must be performed by a qualified electrician experienced with Ex-certified equipment and hazardous environment standards.
Applications
  • Mining
  • Tunnelling
  • Commercial applications
  • Group 1 hazardous environments
Standards & Compliance
  • Complies with AS/NZS 1299 – Electrical Equipment for Explosive Atmospheres
Environmental Benefits
  • Durable stainless steel construction reduces waste and replacement frequency
  • Flameproof repairable design minimizes full product replacement
Warranty Information

Warranty details available upon request from Ausproof.

Available Now

The Ausproof PL 3300V 300A 4 Pin Plug is available now for immediate purchase. Ideal for mining, tunnelling, and hazardous commercial applications.