Weidmüller 1786400000 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1786400000 is a 12-position wire-to-board terminal block with vertical orientation and 0.250" (6.35mm) pitch spacing. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The terminal block accommodates wire gauges from 10-22 AWG with a rated current capacity of 30 A and voltage rating of 300 V, utilizing screw-based TOP clamp wire termination.

Substiute Parts

1786400000

WeidmüllerIn Stock: 10161786400000 Datasheet

Current PartRFQ

1786290000

WeidmüllerIn Stock: 7721786290000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1786400000 is determined by the following critical parameters:

• Electrical Compatibility: Current rating (30 A), voltage rating (300 V), and wire gauge acceptance range must meet or exceed the original specification
• Mechanical Compatibility: Pitch spacing (0.250" / 6.35mm), position count (12), mating orientation (vertical with board), and mounting type (through hole) must be identical
• Termination Method: Wire termination must utilize the same screw-based TOP clamp mechanism
• Series Alignment: Parts from the TOP4GS series maintain design consistency and PCB footprint compatibility

The substitute part 1786290000 satisfies all critical substitution criteria while offering enhanced specifications in wire gauge range and operating temperature, with the trade-off of different housing color and material designation.

Parameter Comparison

Engineering Selection Recommendations

The 1786290000 serves as a direct functional substitute for the obsolete 1786400000. Key selection factors include:

Product Status: The 1786290000 maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete 1786400000.

Compliance: The 1786290000 carries RoHS compliance certification, meeting modern regulatory requirements for new designs and system upgrades. Both parts maintain REACH unaffected status and EAR99 export classification.

Enhanced Specifications: The substitute part extends wire gauge compatibility to 10-26 AWG and expands the operating temperature range to -50°C ~ 100°C, providing greater flexibility for diverse application environments while maintaining identical electrical ratings and mechanical footprint.

Packaging Consideration: The 1786290000 is supplied in bulk packaging, whereas the original part number packaging is not specified. Verify packaging requirements for your procurement workflow.

Frequently Asked Questions (FAQ)

Q: Can the 1786290000 be used as a direct replacement for the 1786400000 on existing PCBs?

A: Yes. Both parts share identical pitch spacing (0.250" / 6.35mm), position count (12), mating orientation (vertical with board), mounting type (through hole), and screw thread specification (M3). PCB footprints are compatible.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete vs. active), wire gauge range (10-22 AWG vs. 10-26 AWG), operating temperature range (-20°C ~ 100°C vs. -50°C ~ 100°C), housing material designation (PA66 Nylon 6/6 vs. PA Nylon), contact material composition (Copper Tin Alloy vs. Electrolytic Copper), and RoHS compliance status (not specified vs. compliant).

Q: Are the electrical ratings identical?

A: Yes. Both parts maintain 30 A current rating, 300 V voltage rating, and identical screw torque specifications (0.5-0.6 Nm).

Q: Does the expanded wire gauge range of the 1786290000 affect compatibility?

A: No. The 1786290000 accepts 10-26 AWG, which encompasses the original 10-22 AWG range. Existing wire connections remain fully compatible.

Q: What is the significance of the operating temperature range difference?

A: The 1786290000 extends the lower temperature limit from -20°C to -50°C, providing suitability for cold environment applications. The upper limit remains 100°C for both parts.

Q: Is RoHS compliance a requirement for my application?

A: RoHS compliance is mandatory for products sold in the European Union and many other markets. The 1786290000 meets this requirement; the original part number does not specify compliance status. Verify regulatory requirements for your target market.