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400 Amp Cam Lock Covers
Cam Lock Dust Covers are weatherproof snap-back protective covers designed for all male and female receptacles, ensuring compatibility with all 400A Cam-type receptacles. Featuring a NEMA 3R-rated gasket, they provide an environmental seal that safeguards against rain, dust, and frost. Constructed from high-impact resistant, flame-retardant ABS material and equipped with corrosion-resistant stainless-steel hardware, these covers deliver durability and reliable protection.
Cam Lock Protective Caps are available in both inline male plug and female connector variants, designed to provide a secure fit while complementing your Cam Lock connectors. Engineered to meet NEMA 3R standards, they offer reliable protection against dust, debris, and environmental elements. Crafted from high-quality Santoprene—the same material used in 400 Amp connectors—each cap includes a convenient lanyard for easy attachment.
3-Phase Electrical Color Codes (North America): 120/208/240V and 277/480V
3-Phase Electrical System Color Codes (North America)
Reference guide for conductor identification in 120/208/240V and 277/480V three-phase systems.
277/480 Volt 3-Phase System (High Voltage Industrial)
This color coding scheme is commonly used in industrial environments for higher-voltage systems to clearly differentiate phase conductors for safety and maintenance.
Phase & Ground Color Codes
- L1 (Line 1): Brown
- L2 (Line 2): Orange
- L3 (Line 3): Yellow
- N (Neutral): Gray
- PE (Protective Earth / Ground): Green or Green with Yellow Stripe
Note: This scheme is widely adopted in North America for 277/480V systems.
120/208/240 Volt 3-Phase System (Standard NEMA Colors)
Used in commercial and residential applications, this system follows the standard NEMA color codes.
Phase & Ground Color Codes
- L1 (Phase 1): Black
- L2 (Phase 2): Red
- L3 (Phase 3): Blue
- Neutral (N): White
- Protective Earth (PE) / Ground: Green or Green with Yellow Stripe
Standard Compliance: These colors align with common North American practices for low-voltage 3-phase systems.
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