Bussmann TB300-04QC20 Four-Pole Barrier Terminal Block Connector, 600V/30A

Bussmann TB300-04QC20 Four-Pole Barrier Terminal Block Connector, 600V/30A

The Bussmann TB300-04QC20 is a panel mount terminal block connector from the Eaton TB300 series, engineered for reliable power distribution and control wiring in industrial and OEM electrical enclosures. This four-pole, double-row barrier terminal block is rated 600V and 30A, with a 7500V breakdown voltage rating that supports demanding dielectric strength requirements, and it is CE Marked for compliance-driven installations. Twenty quick-connect terminals combined with #8-32 TPI screw hardware give installers a fast, secure termination point for both quick-connect and screw-terminated conductors on the same block.

Key Features

• Twenty Quick-Connect Terminals: Twenty quick-connect positions allow fast, tool-free mating of pre-terminated leads alongside the block's screw terminals.
• Four-Pole, Double-Row Barrier Configuration: Double row, barrier-style construction isolates adjacent poles for safer, more organized panel wiring.
• Voltage & Amperage Rating: Rated 600V and 30A for continuous operation, with a 7500V breakdown voltage rating for added dielectric margin.
• Screw Hardware: #8-32 TPI screw terminals paired with zinc-plated steel philslot screws for a secure, corrosion-resistant connection.
• Durable Construction: Tin-plated brass terminals deliver reliable conductivity and long-term connection integrity in a black housing.
• Torque Rating: Rated to 16 lb-in for proper, code-compliant terminal tightening during installation.
• Compact Footprint: Panel mount dimensions of 3.25 x 1.33 x 0.81 IN fit standard enclosure layouts.

Certifications & Compliance

• CE Marked

Technical Specifications

• Amperage Rating: 30A
• Compliances: CE Marked
• Product Length Depth: 3.25 IN
• Product Weight: .116 LB
• Product Width: 1.33 IN
• Torque Rating: 16 lb-in
• Product Material: Tin-plated brass terminal, Zinc-plated Steel philslot screw

Typical Applications

• Panel Mount Power Distribution
• Industrial Control Panel Wiring
• OEM Equipment and Machine Building
• Electrical Enclosure Terminal Assemblies
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann, an Eaton brand, builds the TB300 series terminal block connectors with tin-plated brass terminals and zinc-plated steel hardware for dependable, long-lasting panel wiring connections. The 600V/30A rating, 7500V breakdown voltage, and CE Marked compliance make the TB300-04QC20 a solid choice for professional electrical panel builders who need code-compliant, repeatable terminations. Genuine Bussmann part number TB300-04QC20 ensures fit, form, and function match the original Eaton TB300 series specification.