Allen-Bradley SP-135111 Silicon Controlled Rectifier

Allen-Bradley SP-135111 Silicon Controlled Rectifier renewal parts kit is a replacement SCR solution from Allen-Bradley, used to refresh SCR components in legacy equipment. It features a silicon controlled rectifier rated for 55 A continuous current and 1,200 V blocking voltage, a combination that supports medium-current switching tasks in industrial power-control circuits. The SP-135111 designation is referenced in Rockwell Automation literature as a kit for SCR replacement, indicating it is intended for service and refurbishment rather than new-drive installations. This makes it a suitable option when maintaining or reviving older Allen-Bradley drives and power-control assemblies that rely on SCR devices. The 55 A / 1,200 V ratings provide a clear specification of the device's switching capability and voltage handling, helping technicians assess compatibility with their existing systems. By sourcing SP-135111, technicians align with Allen-Bradley spare-parts practices to preserve original equipment behavior, protection schemes, and electrical characteristics during renewal work.