General Electric
General Electric TB43T300 Circuit Breaker | 300A 600V 3P Thermal Magnetic Tri-Break
General Electric TB43T300 Circuit Breaker | 300A 600V 3P Thermal Magnetic Tri-Break
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ABB / GE Branding Notice
On June 30, 2018, ABB completed the acquisition of GE Industrial Solutions. Because of this transition, some products may be labeled as either ABB or GE depending on the manufacturing date and production batch.
Customers may receive products with:
- ABB branding
- GE branding
- Packaging reflecting either brand
Unless otherwise stated, these are considered the same product and are fully interchangeable under the applicable manufacturer specifications.
Please contact our support team before ordering if you have questions about labeling, compatibility, or product identification.
This robust Tri-Break circuit breaker features interchangeable trip units and is designed for TB4 molded case frames. It provides reliable thermal magnetic protection with long-time and instantaneous trip functions, handling up to 300A. The 3-pole, 600V unit is ideal for demanding electrical applications, ensuring consistent performance and safety.
Key Features:
✔ Part Number: TB43T300
✔ Manufacturer: General Electric
✔ Category: Circuit Breaker
✔ Subcategory: Trip Units & Programmers
✔ Family: Tri-Break
✔ Type: TB
✔ Voltage: 600
✔ Poles: 3
✔ Functions: LI - Long-Time and Instantaneous
✔ Amperage Maximum: 300
✔ Amperage Minimum: 300
✔ Protection: Thermal Magnetic
✔ Compatible Frames: TB,TB4
✔ Weight: 3
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