Weidmüller 1783700000 Terminal Block Equivalent & Substitute Parts

Part Overview

The Weidmüller 1783700000 is a 1-position wire-to-board terminal block designed for horizontal PCB mounting with through-hole installation. This component features side entry wire termination using a screw-clamping mechanism with tension sleeve, rated for 85 A at 600 V, and accommodates wire gauges from 4-16 AWG. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this series is no longer available.

Substiute Parts

1783700000

WeidmüllerIn Stock: 8101783700000 Datasheet

Current PartRFQ

1047520000

WeidmüllerIn Stock: 8681047520000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1783700000 is based on the following critical parameters that must remain consistent or exceed the original specification:

• Single-position configuration with horizontal PCB mounting orientation
• Through-hole installation method with flange mounting feature
• Screw-clamping wire termination mechanism with tension sleeve
• Minimum current rating of 85 A and voltage rating of 600 V
• Wire gauge compatibility within or exceeding 4-16 AWG range
• Operating temperature range of -50°C to 120°C
• Thermoplastic housing material (Wemid)
• Tin-plated copper or copper alloy contacts
• RoHS compliance status

The Weidmüller 1047520000 from the Omnimate LXXX series meets these substitution criteria while offering enhanced electrical performance and expanded wire gauge acceptance.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1047520000 is a direct functional substitute for the obsolete 1783700000. Both components maintain identical voltage and temperature specifications, with the substitute offering superior current capacity (127 A versus 85 A) and expanded wire gauge range (1-20 AWG versus 4-16 AWG). Both parts are RoHS compliant and REACH unaffected, meeting current regulatory requirements.

The primary design difference is the screw thread specification: the substitute uses M6 threading compared to the original M5. This represents a minor mechanical change that does not affect electrical performance or functional compatibility in standard PCB mounting applications. The substitute's active product status ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 1047520000 directly replace the 1783700000 in existing designs?

A: The 1047520000 is functionally equivalent for electrical performance. The screw thread difference (M6 versus M5) requires verification that mounting hardware and PCB hole specifications accommodate the larger thread diameter. Wire termination methodology and clamping force specifications remain identical.

Q: What is the significance of the wire gauge range difference?

A: The original 1783700000 accepts 4-16 AWG wire. The substitute 1047520000 accepts 1-20 AWG wire, providing broader compatibility with both larger and smaller conductor sizes. Applications using wire within the original 4-16 AWG range experience no functional change.

Q: Are there packaging differences between these parts?

A: The original part is listed with unspecified packaging, while the substitute is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 1783700000 and 1047520000 are RoHS compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and commercial applications.

Q: What is the impact of the current rating increase from 85 A to 127 A?

A: The higher current rating of the substitute provides additional design margin and thermal performance headroom. Applications operating at or below 85 A experience no change in performance characteristics.