Bussmann TB300-0400 Eaton TB300 Series Four-Pole Barrier Terminal Block, 600V

Bussmann TB300-0400 Eaton TB300 Series Four-Pole Barrier Terminal Block, 600V

The Bussmann TB300-0400 is a genuine Eaton TB300 series panel-mount terminal block connector engineered for organized, code-compliant multi-circuit wiring in panels and control enclosures. This four-pole barrier-style connector is rated 600V with a 7500V dielectric breakdown voltage, measures a compact 3.25 x 1.33 x 0.81 IN, and pairs a molded black thermoplastic base with tin-plated brass terminals for dependable, corrosion-resistant electrical contact. Mounting screws ship in bulk, making the TB300-0400 a straightforward panel-mount solution for electricians, panel builders, and OEM assemblers who need consistent, reliable terminations on every job.

Key Features

• Panel-Mount Design: Compact 3.25 x 1.33 x 0.81 IN footprint allows the block to mount directly in control enclosures and equipment panels without excessive clearance requirements.
• Four-Pole Configuration: Four isolated poles on a single barrier-style block keep multi-circuit terminations organized and clearly separated on a shared mounting surface.
• Voltage & Current Ratings: Rated 600V with a 7500V dielectric breakdown voltage, a 30A working current rating, and a 300A series amp rating for dependable circuit connections.
• Barrier-Style Insulation: Raised barriers between poles help guard against accidental contact and short circuits between adjacent terminations.
• Durable Construction: Molded black thermoplastic base provides electrical insulation and mechanical protection for the terminal assembly.
• Terminal Material: Tin-plated brass terminals resist corrosion and support reliable, long-term electrical contact under normal service conditions.
• Hardware Included: Mounting screws ship in bulk, simplifying panel installation for high-volume builds.
• Genuine Eaton/Bussmann Part: Genuine Bussmann part number TB300-0400 sourced from the Eaton TB300 series terminal block lineup.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Panel-Mount Terminal Wiring
• Industrial Control Panels
• Panelboard and Distribution Wiring
• Multi-Circuit Electrical Connections
• OEM Equipment and Machine Wiring
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann is trusted for genuine Eaton-engineered components built to precise electrical specifications, and the TB300-0400 is no exception. It pairs a molded thermoplastic base with tin-plated brass terminals to deliver dependable, corrosion-resistant connections rated for 600V and 30A service with a 7500V dielectric breakdown voltage. Bulk-packed mounting screws and a compact four-pole barrier design make this connector easy to specify across multiple panels. Choose genuine Bussmann terminal blocks for consistent, code-compliant performance in professional electrical installations.