Bussmann TB300 Series Panel Mo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$24.94
Bussmann TB300 Series Panel Mount Barrier Terminal Block, Molded Thermoplastic

Bussmann TB300 Series Panel Mount Barrier Terminal Block, Molded Thermoplastic

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Model: TB300-06L5

In Stock (leaves warehouse same day if ordered before 3pm ET)

$24.94
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Bussmann TB300 Series Panel Mount Barrier Terminal Block, Molded Thermoplastic

The Bussmann TB300 Series panel mount barrier terminal block connector is a compact, multi-pole connection solution built for industrial and OEM electrical assemblies. Constructed with a molded thermoplastic base, tin-plated brass terminals, and stainless steel philslot screws, this Eaton Bussmann terminal block connector is rated 600V with a 30A amperage rating and a 7500V breakdown voltage for reliable dielectric performance between poles. The TB300 family is available in nine Style configurations (B, BL, BS, BSL, L, P, QC, ST, STL) spanning six-pole to twelve-pole layouts, giving panel builders a consistent black, molded-thermoplastic barrier-style terminal platform across a wide range of pole counts.

Key Features

  • Barrier Style Terminal Block: Six-pole to twelve-pole barrier-style configurations for secure, code-compliant panel mount wiring.
  • Durable Molded Thermoplastic Base: Insulating molded thermoplastic base resists heat and mechanical stress in panel-mount environments.
  • Tin-Plated Brass Terminals: Tin-plated brass terminal construction supports dependable, low-resistance electrical connections.
  • Stainless Steel Philslot Screws: Corrosion-resistant stainless steel philslot screws provide secure wire termination.
  • Voltage Rating: Rated 600V with a 7500V breakdown voltage rating for strong dielectric performance between poles.
  • Amperage Rating: 30A rated terminal block connector suited for panel mount circuits.
  • Black Molded Housing: Black molded thermoplastic housing for a durable panel-mount profile.
  • Nine Style Options: Available in B, BL, BS, BSL, L, P, QC, ST, and STL style configurations across the TB300 series.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Panel Mount Terminal Wiring
  • Industrial Control Panel Assemblies
  • OEM Electrical Equipment Connections
  • Power Distribution and Junction Panels
  • Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann, an Eaton brand, engineers the TB300 Series with a molded thermoplastic base, tin-plated brass terminals, and stainless steel philslot screws for dependable panel mount performance. With a 600V rating, 30A amperage rating, and 7500V breakdown voltage, this barrier terminal block connector delivers the electrical integrity that professional panel builders rely on across the full nine-option Style range.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Type:
Terminal Block
Product Material:
Molded Thermoplastic
Product Color:
Black
Configuration:
Barrier
Voltage Rating:
600V
Amperage Rating:
30A
Series:
TB300
Product Finish:
Tin-Plated
Product Group:
0
Product Subgroup:
0

Bussmann TB300-06L5 – Frequently Asked Questions

1) What voltage and current is the Bussmann TB300 barrier terminal block rated for?
The TB300 Series is rated 600V at 30A per pole, with a 7500V breakdown voltage between poles. That covers typical control panel and power distribution wiring at 120V, 240V, and 480V, but it is not a high-current bus, so anything drawing over 30A per circuit needs a heavier block.
2) How many poles do Bussmann TB300 terminal blocks come in?
The TB300 family runs from six-pole up to twelve-pole barrier layouts across its nine Style configurations. Pick the pole count that matches the number of circuits landing at that point in the panel; there is no ganging described, so order the block that carries all the conductors you need.
3) What is the difference between the TB300 Style options like B, QC, and ST?
Style is the ordering axis on the TB300 Series, and there are nine of them: B, BL, BS, BSL, L, P, QC, ST, and STL. The Style code is what distinguishes one part number from another, so you specify it on the order, for example TB300-03B, TB300-03QC14, TB300-06ST, or TB300-12P. Match the Style to the termination arrangement your panel drawing calls out.
4) Is a barrier terminal block the right choice, or should I use DIN rail terminals?
The TB300 is a barrier-style block that mounts directly to the panel surface, not a DIN rail terminal. Barrier blocks keep each pole separated by a molded wall and terminate ring or spade lugs under a screw, which is what OEM equipment and junction panels usually want when wiring is landed once and left alone. If your panel is built on 35mm DIN rail and you expect to add or reconfigure circuits, a DIN rail terminal strip is the better fit.
5) Will the Bussmann TB300 hold up in a hot or corrosive panel environment?
Construction is a molded thermoplastic base with tin-plated brass terminals and stainless steel philslot screws. The thermoplastic body handles panel heat and mechanical stress, the tin plating on the brass keeps contact resistance low, and stainless screws resist corrosion at the termination point, which matters in damp mechanical rooms and outdoor-rated enclosures.
6) What screwdriver do I need for the Bussmann TB300 terminal screws?
The terminal screws are philslot stainless, so they take either a Phillips driver or a flat blade. That is useful on a service call when you have one driver in hand, and it means a power driver with a Phillips bit works for a full twelve-pole block.
7) Are Bussmann TB300 terminal blocks all the same color for panel standardization?
Every TB300 block is black molded thermoplastic, so a panel shop standardizing on the series gets a consistent look across all nine Styles and the full six to twelve pole range.
How fast can I get the Bussmann TB300-06L5 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann TB300-06L5 come with a warranty?
Absolutely. The Bussmann TB300-06L5 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann TB300-06L5?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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