Industrial LW3500 500A 3-Pole 690 V Circuit Breaker

Engineered for demanding industrial environments, the LW3500 500A 3-Pole 690 V Circuit Breaker delivers dependable, three‑phase protection for heavy-duty electrical systems. Identified by Part Number LW3500, this industrial circuit breaker is built to reliably interrupt power and protect equipment, feeders, and switchgear from overloads and short circuits.

Key specifications at a glance

• Current rating: 500 A
• Poles: 3
• Voltage rating: 690 V
• Application: Industrial-grade circuit protection for three-phase systems

Why the LW3500 matters in your facility

Three-pole design ensures synchronized disconnection of all phases, preventing dangerous phase imbalances and protecting motors and other three-phase equipment from damage during faults. With a 690 V rating, this breaker is well suited for higher‑voltage distribution panels, motor control centers, and heavy feeders common in manufacturing plants, processing facilities, and large commercial installations.

Ideal use cases

• Motor control centers and large three‑phase motors
• Industrial distribution panels and feeders supplying high‑demand equipment
• Backup and main protection for commercial/industrial power rooms requiring robust phase protection

What sets it apart

Unlike smaller or single‑phase devices, the LW3500 delivers coordinated three‑phase protection with a high current capacity, helping to minimize downtime and protect expensive equipment. Its industrial build is designed to withstand the rigors of continuous operation in busy facilities, providing a reliable safeguard for critical loads.

Practical guidance for installation and operation

• Ensure panel compatibility with a 3‑pole, 690 V device and verify bus bar and mounting requirements before installation.
• Check conductor sizing and torque specifications per your panel’s guidelines to ensure secure, long‑lasting connections.
• Coordinate protection settings (and upstream devices) to minimize nuisance trips while ensuring fast fault isolation for safety and equipment protection.

Maintenance and reliability tips

Regularly inspect for signs of wear, check for loose connections, and verify that the breaker remains properly seated in the panel. Keep replacement parts on hand and document any tripping history to optimize protection strategy for your three‑phase loads.

For facilities that demand robust 3‑phase protection at 690 V with substantial current capacity, the LW3500 500A 3‑Pole 690 V Circuit Breaker (Part Number LW3500) offers a targeted, reliable solution that aligns with industrial search intent and practical, real‑world use.