Allen-Bradley 1489-M1C100 10A 1P 277V Circuit Breaker | AmpState

Experience dependable protection for 277V circuits with the Allen-Bradley 1489-M1C100. This 1-pole, 10-amp circuit breaker is engineered for panelboards, load centers, and broader electrical distribution applications. Whether you’re upgrading an existing installation, performing a retrofit, or stocking spares to keep your BOM aligned with the original part number, this unit delivers precise protection where it matters most.

Overview

The 1489-M1C100 is designed to fit into systems that require 1-pole, 10 A, 277V protection. It’s a reliable component within the Allen-Bradley 1489 family, chosen for its compatibility with panelboards, load centers, and distributed electrical networks. Available from AmpState, this part helps maintain the integrity of your electrical protection scheme while enabling straightforward replacements in the field.

Key specifications

• Manufacturer: Allen-Bradley
• Part Number: 1489-M1C100
• Product Type: Circuit Breaker
• Amperage: 10 A
• Poles: 1 Pole
• Voltage: 277V
• Applications: Panelboards, load centers, and electrical distribution

Why this model stands out

• Exact BOM alignment: engineered to mesh seamlessly with original installations, minimizing compatibility concerns and cross-reference issues.
• Fast, reliable replacement: ideal for replacement projects and service calls where uptime matters and spare parts are kept on hand.
• Consistent protection for 277V circuits: specifically suited for commercial lighting and distribution networks that operate at 277V.
• Stocking efficiency: a dependable spare that helps you maintain inventory accuracy and reduce maintenance lead times.

Ideal use scenarios

• Retrofitting or refreshing older panelboards and load centers that require a 1-pole, 10 A, 277V breaker.
• Maintaining a ready spare in service vehicles or facilities to speed up emergency replacements without BOM drift.
• Replacement of failed breakers in commercial electrical distribution systems where 277V circuits are common.
• Projects that demand strict adherence to the original part number for warranty and compatibility reasons.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. This assurance helps you proceed with confidence, knowing the 1489-M1C100 will behave as intended within your electrical distribution scheme.

Installation and handling tips

• Verify the target panelboard or distribution equipment accepts 1489-series, 1-pole breakers and operates at 277V.
• Follow all manufacturer installation guidelines and standard electrical safety practices during replacement or retrofit work.
• Keep a spare on hand for proactive maintenance to minimize downtime and maintain BOM integrity.