TB300-06 Equivalent & Substitute Parts

Part Overview

The TB300-06 is a 6-circuit barrier block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® TB300 series. This component functions as a chassis or panel-mounted terminal block with dual-wall barrier construction, designed for applications requiring secure wire termination with screw-based connections. The part is currently active in production with 968 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary part becomes unavailable or when inventory constraints necessitate alternative sourcing.

Substiute Parts

TB300-06

Eaton - Bussmann Electrical DivisionIn Stock: 1016TB300-06 Datasheet

Current PartRFQ

562000060

Curtis IndustriesIn Stock: 1090562000060 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TB300-06 is determined by the following critical parameters:

• Circuit Configuration: 6 circuits with 12 wire entries across 2 rows
• Pitch Tolerance: 0.562" nominal pitch (14.27mm) with allowance for minor manufacturing variance
• Electrical Ratings: Minimum 30A current capacity and 600V voltage rating
• Termination Method: Screw-based top termination with closed bottom configuration
• Barrier Construction: Dual-wall (2 Wall) barrier type for electrical isolation
• Flammability Compliance: UL94 V-0 rating required
• Mounting Configuration: Chassis or panel mounting capability with flange feature
• Material Specification: Thermoplastic or equivalent insulation material with zinc-plated steel screws

The substitute part 562000060 (Curtis Industries, 5600 series) meets these core substitution criteria through equivalent circuit count, compatible pitch specification, and matching electrical and safety certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (TB300-06): Select when Eaton - Bussmann Electrical Division sourcing is required, when operating temperature range of -40°C to 130°C is specified, or when thermoplastic insulation material is mandated by design requirements. This part maintains active production status with established supply availability.

Substitute Part (562000060): Select when Curtis Industries 5600 series components are preferred or when higher current capacity (35A versus 30A) provides design margin. This part meets ROHS3 compliance, representing an enhanced regulatory status. The operating temperature maximum of 150°C exceeds the primary part specification. The pitch variance of 0.03mm (0.563" versus 0.562") falls within standard manufacturing tolerances for barrier block connectors and does not affect mechanical or electrical interchangeability in standard mounting applications.

Both parts carry identical electrical ratings (600V), support the same wire gauge range (8-22 AWG), feature dual-wall barrier construction, and maintain UL94 V-0 flammability certification. Selection between these parts is driven by supplier availability, inventory status, or specific compliance requirements rather than functional performance differences.

Frequently Asked Questions (FAQ)

Q: What determines if a barrier block connector can substitute for the TB300-06?

A: Substitution is based on matching circuit count (6 circuits), compatible pitch specification (0.562" ± tolerance), equivalent electrical ratings (minimum 30A at 600V), identical termination method (screw-based), dual-wall barrier construction, and UL94 V-0 flammability compliance. Wire gauge compatibility (8-22 AWG) and mounting configuration (chassis/panel with flange) must also align.

Q: Is the 0.03mm pitch difference between TB300-06 and 562000060 significant?

A: No. The pitch variance of 0.03mm (0.562" to 0.563") is within standard manufacturing tolerances for barrier block connectors and does not affect mechanical fit or electrical performance in standard mounting applications. Both parts are designed for identical mounting footprints.

Q: Can I use 562000060 if my application requires -40°C operation?

A: The 562000060 specification does not explicitly state a minimum operating temperature. The TB300-06 is specified for -40°C to 130°C operation. If your application requires confirmed operation at -40°C, the TB300-06 is the documented choice. Consult Curtis Industries technical documentation for 562000060 low-temperature performance data.

Q: Does the higher current rating of 562000060 (35A vs. 30A) affect compatibility?

A: No. A higher current rating is compatible with applications designed for 30A operation. The 562000060 provides additional design margin and does not create incompatibility. If your circuit requires exactly 30A capacity, both parts are suitable.

Q: Are there packaging or inventory considerations for these substitutes?

A: Both parts are supplied in bulk packaging. TB300-06 has 968 units in stock; 562000060 has 1014 units in stock. Packaging format is identical, and no special handling differences apply between these parts.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current regulatory iteration. Both parts meet hazardous substance restrictions and are suitable for applications with RoHS requirements.