Description
The ABB T5N300E5W (Manufacturer Part Number: T5N300E5W, UNSPSC Code: 39120000) is a 3-pole molded case circuit breaker featuring ABB’s advanced PR221DS-I magnetic release electronic trip unit. Engineered for UL/CSA applications, this fixed-mount circuit breaker provides a 300 A continuous current rating ($I_u$) and dependable magnetic-only short-circuit protection specifically tailored for motor circuit applications in heavy industrial switchgear.
Part of ABB’s robust Tmax T5 series, the T5N300E5W combines high interrupting capacity with front terminals for secure cable connections and straightforward installation in demanding power distribution panels and motor control centers.
Key Features
- Magnetic-Only Release (MCP): Equipped with a PR221DS-I electronic trip unit providing precise adjustable magnetic short-circuit protection for motor loads.
- 300 A Continuous Rating: Engineered to handle high-capacity industrial branch circuits and motor feeders reliably.
- 3-Pole Configuration: Robust 3-phase switching and fault protection in a compact molded case frame.
- Front Terminal Access: Features standard front-facing terminals for streamlined cable routing and secure terminations.
- UL / CSA Certified: Built to rigorous North American safety and performance standards for industrial electrical distribution.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Type / Model | T5N300E5W (Tmax T5 Series) |
| Brand / Manufacturer | ABB |
| Manufacturer Part Number (MPN) | T5N300E5W |
| Device Type | Molded Case Circuit Breaker / Motor Circuit Protector (MCP) |
| Current Rating ($I_u$) | 300 A |
| Number of Poles | 3 Pole (3P) |
| Trip Unit Type | PR221DS-I (Magnetic Release / Electronic) |
| Terminal Type | Fixed with Front Terminals (F F) |
| Standards & Certifications | UL / CSA |
| Primary Applications | Industrial motor protection, motor control centers, switchgear panels, and heavy-duty power distribution |
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