SurLok Plus 10.3mm Straight Plug: Powerful 1500V DC Expansion

Build Smaller, Run Stronger: SurLok Plus® 10.3mm, Single-Pole at 1500VDC

SurLok Plus® 10.3mm straight plug extends Amphenol Industrial Operations’ proven high-power portfolio with a field-installable, 1500V DC solution designed for fast, repeatable assembly and reliable performance across HEV battery systems, server power, and industrial equipment. Built on R4 RADSOK® contact technology, the new straight plug delivers low contact resistance, high current handling, and excellent thermal behavior to reduce losses and improve long-term system efficiency.

Why This Expansion Matters for Buyers & OEMs

Programs are converging on higher voltages and tighter timelines. This expansion helps procurement and engineering teams standardize around a trusted connector family while meeting aggressive electrical and environmental requirements. The straight plug format supports streamlined harness design, straightforward routing in tight spaces, and consistent installation in the field or at the line—lowering total cost of assembly without compromising performance.

High-Current Performance with R4 RADSOK®

R4 RADSOK® technology provides a large, uniform contact area to minimize resistance and heat rise under load. The result is robust current capacity (up to 320 A, application dependent) with stable performance over repeated mating cycles. This design also supports better derating behavior and more predictable thermal margins—key considerations for high-duty cycle applications in electrified transport, power conversion, and backup power systems.

Field-Installable, Repeatable Assembly

The connector is engineered for on-site flexibility: a quick-lock, press-to-release mechanism eliminates precision torque steps and speeds final assembly. Installers can select the required keying, plating, and cable size options to match system architecture and reduce the risk of mis-mates. The straight plug geometry simplifies routing and strain relief and integrates cleanly with enclosure or rack layouts.

Built for Harsh Environments

For reliability in demanding conditions, the SurLok Plus 10.3mm straight plug supports a wide operating temperature range (-40°C to +125°C), meets IP67 when mated, and uses materials that pass UL94 V-0 for flammability. The design is RoHS and REACH compliant, supporting global procurement requirements and environmental policies. These credentials help distributors and OEMs serve cross-regional programs with a single, qualified part family.

Applications Across Energy Storage and Data Centers

From HEV/EV battery connections to data center power distribution, the straight plug enables compact, high-density layouts that maintain serviceability. Integrators building AI and server power shelves benefit from high current in a small envelope; industrial OEMs gain a rugged solution for drives, storage, and power conversion where uptime and safety are non-negotiable.

Key Advantages at a Glance

• 1500V DC capability, engineered for high-power systems
• R4 RADSOK® technology for low resistance and high current
• Field-installable: quick-lock, press-to-release; no precision torquing
• Wide operating temperature: -40°C to +125°C
• IP67 when mated; UL94 V-0 materials
• RoHS and REACH compliant

Learn More and Get Started

The SurLok Plus platform helps teams standardize on a rugged, high-power interface while simplifying installation and maintenance. Leverage our engineering support and documentation to accelerate design-ins and keep programs on schedule.