ABB 1SQA014950R0001 MCB - Heavy-Duty ReliaGear UL891
Part Number: 1SQA014950R0001
Quick Summary
ABB 1SQA014950R0001 MCB provides reliable overcurrent protection for industrial power distribution in demanding control panels. Engineers often face nuisance trips, complex wiring, and lengthy commissioning that hamper uptime and project timelines. This device aligns with ReliaGear UL891 architecture and offers REACH compliance details with clear WEEE scope information to simplify regulatory planning. By choosing this MCB, you gain installation compatibility with ABB protection schemes and a robust safety margin, supporting predictable maintenance and reduced total cost of ownership, while enabling safer, more efficient panel operations for manufacturing, process, and automation environments.
Product Information
REACH Information
False - does not contain substances > 0.1 mass percentage
WEEE Category
Product Not in WEEE Scope
Product Main Type
ReliaGear UL891
4000A current rating with CT integration ensures accurate protection for large distribution panels, enabling precise fault detection without nuisance trips. This translates to reduced downtime during faults and smoother coordination with upstream protection devices in medium- to high-current systems, making it ideal for industrial control panels in manufacturing lines and large machine cells where reliability matters. ReliaGear UL891 lineage provides robust protection standards and predictable trip characteristics, facilitating safer commissioning and easier documentation for audits across regulated sectors such as automotive, food & beverage, and heavy machinery. REACH information confirms no substances above 0.1 mass percentage, and WEEE category is not in scope, simplifying supply chain and end-of-life planning. The MCB’s ecosystem compatibility reduces engineering time and accelerates project timelines, while standard protection architecture within ReliaGear enables scalable protection as your automation footprint grows. Installation and maintenance benefits include consistent performance, reduced spare part variety, and improved uptime through proven ABB protection integration. Overall, this MCB supports cost reduction through reliability and easier compliance reporting for industrial environments.
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FAQs
For optimal performance, ensure the MCB is integrated within ABB ReliaGear protection schemes and installed in a suitable control panel or distribution board designed for molded case breakers. Verify panel rating compatibility, correct electrical clearances, and proper conductor torque per standard practices. Plan for straightforward wiring to align with existing protection coordination and documentation, reducing commissioning time and risk of miswirings.
The 4000A rating supports heavy-load distributions typical of large manufacturing lines and critical processes. CT integration allows accurate fault sensing and coordination with upstream protection devices, minimizing nuisance trips while ensuring fast, selective disconnection during overloads. This performance translates to higher availability, safer operation, and better alignment with system-level protection strategies.
The product is categorized under ReliaGear UL891, indicating compliance with UL891 standards for molded case breakers. REACH information shows no substances above 0.1 mass percentage, supporting chemical safety requirements, while WEEE Category indicates the product is not in scope for WEEE obligations. Together, these certifications simplify regulatory documentation and lifecycle planning for global deployments.
This MCB is well-suited for industrial control panels, machine enclosures, and distribution boards in manufacturing and process environments that require reliable overcurrent protection with scalable protection coordination. Its 4000A rating and UL891 lineage support high-demand applications, enabling safer commissioning, easier maintenance, and consistent protection across evolving automation architectures.
Expect improved uptime due to lower nuisance trips and predictable trip characteristics, reducing unplanned outages. Lifecycle management benefits include compatibility with the ReliaGear ecosystem, streamlined spares planning, and simplified compliance documentation. Over time, these factors translate to lower maintenance costs and a favorable total cost of ownership for large-scale industrial deployments.