Appleton T300A Circuit Breaker, 300A, 2-Pole, 600V

Meet the Appleton T300A Circuit Breaker — a purpose-built protection device designed for the rigors of industrial electrical service, ongoing maintenance, and straightforward replacements. With a 300 A rating across two poles and a 600 V operating range, this unit is tailored for AE-series installations where dependable overcurrent protection is critical to keeping heavy machinery and processes up and running.

What makes the T300A stand out

Built for industrial environments, the T300A pairs a compact 2-pole design with a high-current capability, enabling clean isolation of both conductors in 600 V circuits. This is essential for safely servicing equipment while minimizing exposure to live parts. The T300A is specifically associated with the AE-series family, making it a logical choice for upgrades, retrofits, or new builds that demand compatibility with Appleton’s trusted protection platform.

Key specifications

• Amperage: 300 A
• Poles: 2
• Voltage rating: 600 V
• Series: AE
• Part number: T300A
• Product type: Circuit Breaker

Who should consider the T300A?

• Facilities performing routine electrical maintenance and need reliable, quick-replaceable protection
• Engineering teams upgrading or expanding AE-series distribution panels
• Industrial sites requiring durable protection for high-load 600 V circuits

Concrete benefits and practical uses

The T300A delivers dependable protection for 600 V industrial circuits, helping prevent equipment damage from overcurrents and reducing unplanned downtime. It’s ideal for service disconnects, panel replacements, and maintenance projects where consistency and compatibility with the AE-series are priorities. In real-world scenarios, you’ll appreciate the straightforward part-number verification process and the ability to confirm compatibility with your specific application.

How to ensure a perfect fit

To verify fit, check the part number (T300A) against your application requirements and the AE-series specifications. If you’re unsure about compatibility with your existing panels or equipment, reach out for expert assistance—we’re ready to help confirm whether this circuit breaker matches your exact setup.

Why buy this over other options?

Choosing the Appleton T300A means selecting a component designed to integrate seamlessly with Appleton’s AE-series protection scheme, with clear part-number traceability and a track record of reliability in demanding industrial environments. Its two-pole, 600 V configuration is purpose-built for protecting critical loads in manufacturing floors, processing lines, and heavy-duty distribution systems, making it a precise, low-friction upgrade or replacement for compatible AE-series installations.

If you need help matching a part number or confirming compatibility, send a message—we’ll assist you in verifying fit for your application and ensuring you select the right protection for your system.