Siemens WB31000CU Circuit Breaker, 1000A, 4-Pole, 240V

The Siemens WB31000CU Circuit Breaker is built for the demanding needs of industrial electrical service, maintenance, and replacement projects. With a robust 1000 A rating and a four-pole configuration at 240 V, this unit is purpose-built to protect large power distribution systems where reliability matters most.

Why the WB31000CU stands out

• High-current protection at 1000 A, designed to interrupt fault conditions quickly and minimize equipment damage and downtime in active industrial environments.
• 4-pole configuration delivers comprehensive protection for three-phase systems, including neutral, helping maintain balance and system integrity during faults and startup transients.
• Industrial-grade durability engineered to withstand frequent maintenance, demanding workflows, and harsh facility conditions.
• Clear compatibility path: verify fit by part number WB31000CU and align it with your application requirements to ensure a precise, reliable match.
• Versatile deployment suited for service entrances, main disconnects, and replacement projects across manufacturing floors, warehouses, data centers, and processing plants.

Precise compatibility and practical use

When upgrading or replacing protective devices, exact part matching matters. The WB31000CU is your Siemens solution for high-current, 4-pole protection at 240 V. Use this breaker in environments where 3-phase power distribution demands solid fault isolation and dependable performance over the long term.

Ideal scenarios

• New installations in large panels requiring robust, high-current protection for 3-phase systems.
• Replacement projects where exact Siemens part numbers are essential for compatibility and performance.
• Maintenance upgrades in motor control centers and feeders that demand reliable, high-amperage circuit breaking.
• Industrial facilities and data centers seeking predictable protection with straightforward verification steps.

Need help confirming compatibility? Message us with the part number WB31000CU and details about your application, and we’ll verify fit and guidance to keep your power system protected.