Weidmüller 991073 Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The Weidmüller 991073 is a 2-position disconnect terminal block connector designed for 6-18 AWG wire gauges with screw termination. This component operates at 600V UL and 30A UL current rating, featuring a fuse and lever disconnect mechanism in white polyamide insulation. The 991073 is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

991073

WeidmüllerIn Stock: 669991073 Datasheet

Current PartRFQ

1966020000

WeidmüllerIn Stock: 8441966020000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 991073 is determined by the following critical parameters:

• Electrical Compatibility: Voltage rating (600V UL), current rating (30A UL), and disconnect mechanism type (Fuse, Lever)
• Mechanical Compatibility: Number of positions (2), number of levels (1), and termination style (Screw)
• Wire Gauge Compatibility: Wire gauge range must accommodate the 6-18 AWG specification or provide equivalent coverage within acceptable overlap

The substitute part Weidmüller 1966020000 maintains functional equivalence through identical electrical ratings (600V UL, 30A UL), matching position and level configuration (2 positions, 1 level), identical disconnect type (Fuse, Lever), and compatible screw termination. The wire gauge range of 4-18 AWG on the substitute provides extended lower-gauge capability while maintaining full compatibility with the original 6-18 AWG range.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1966020000 serves as a direct functional substitute for the obsolete 991073 terminal block connector. Both components share identical electrical specifications (600V UL, 30A UL), mechanical configuration (2 positions, 1 level, screw termination), and disconnect mechanism (Fuse, Lever). The substitute part maintains active product status, ensuring continued availability and supply chain reliability.

The 1966020000 provides RoHS compliance, whereas the 991073 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the substitute part satisfies compliance obligations while maintaining functional equivalence. The extended wire gauge range (4-18 AWG versus 6-18 AWG) on the substitute accommodates a broader spectrum of conductor sizes without compromising compatibility with the original specification range.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1966020000 directly replace the 991073 in existing installations?

A: Yes. Both components maintain identical electrical ratings (600V UL, 30A UL), position configuration (2 positions), level count (1 level), termination method (Screw), and disconnect mechanism (Fuse, Lever). The substitute is mechanically and electrically compatible for direct replacement.

Q: What is the significance of the extended wire gauge range on the 1966020000?

A: The substitute part accommodates wire gauges from 4-18 AWG, compared to the original 6-18 AWG specification. This extended lower-gauge capability provides flexibility for applications requiring smaller conductor sizes while maintaining full compatibility with the original 6-18 AWG range.

Q: Does the 1966020000 meet RoHS compliance requirements?

A: Yes. The 1966020000 is RoHS Compliant, whereas the 991073 is RoHS non-compliant. Applications subject to RoHS regulatory frameworks benefit from the substitute part's compliance status.

Q: Are there packaging differences between the 991073 and 1966020000?

A: The 991073 is supplied in standard packaging, while the 1966020000 is available in Bulk packaging. Packaging format does not affect functional or mechanical compatibility.

Q: What is the terminal width difference between these components?

A: The 991073 features a 17.5mm terminal width, while the 1966020000 has an 18.0mm terminal width. This dimensional variation reflects design differences between the two product series (USI versus W) but does not prevent functional substitution in standard mounting applications.