Description

Mains Plug NEMA-20 RH-US Black – Rhodium Edition
Audio-Grade Hi-Fi AC Connector — NEMA 5-20P

Maximum Current · Ultra-Low Loss · Reference-Level Power Delivery

The SUPRA NEMA-20 RH-US is a high-performance audio-grade AC mains connector engineered for systems requiring higher current capacity and uncompromised power integrity. Built to the NEMA 5-20P standard (125V / 20A), it is ideal for powerful amplifiers, premium power distributors and reference-level hi-fi equipment.

Rhodium-plated copper terminals ensure exceptionally low contact resistance and long-lasting stability, while the rhodium-plated stainless-steel hardware provides outstanding mechanical strength. The fire-retardant housing (UL 94V-0~2) and secure clamping system support heavy audiophile power cables up to 19 mm in diameter — ensuring a vibration-free, corrosion-proof connection for years to come.

Fully certified (UL, cUL, PSE), the SUPRA NEMA-20 RH-US meets the highest international safety and performance standards.

Features & Benefits:

• 20A NEMA 5-20P standard – Perfect for high-current amplifiers and power systems
• Rhodium-plated copper terminals – Ultra-stable, low-resistance, corrosion-proof contact
• Fire-retardant housing UL 94V-0~2 – Maximum safety for demanding installations
• Rhodium-plated stainless screws – Superior mechanical durability and conductivity
• Large 19 mm cable entry – Supports thick, high-end audiophile power cables
• UL & cUL certified – Verified electrical and environmental conformity.

Technical Specifications:

Standard: NEMA 5-20P (2-pole, 3-wire grounding)
Rated Voltage/Current: 125V AC / 20A
Terminal Material: Copper, rhodium plated
Screws: Stainless Steel 304, rhodium plated
Dielectric Strength: 1250V AC / 1 minute
Insulation Resistance: 100 MΩ at 500V DC
Fire Rating: UL 94V-0~2
Cable Diameter: Up to 19 mm
Certifications: UL, cUL, PSE, RoHS

Addtional Resourses

• Data Sheet (English)

Additional information