Equivalent & Substitute Parts for Weidmüller 1894090000

Part Overview

The Weidmüller 1894090000 (BLZ 5.08/23/270LH SN BK BX) is a 23-position terminal block designed for industrial electrical interconnection applications. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new installations. The substitute part maintains compatibility through matching electrical specifications, mechanical pitch, and connector orientation parameters.

Substiute Parts

1894090000

WeidmüllerIn Stock: 10481894090000 Datasheet

Current PartRFQ

1947740000

WeidmüllerIn Stock: 7981947740000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1947740000 qualifies as a direct equivalent based on the following critical parameters:

• Position Count: Both parts feature 23 positions, ensuring identical connector density and mating interface geometry
• Pitch Specification: Both maintain 0.200" (5.08mm) pitch, guaranteeing mechanical compatibility with existing receptacles and mounting infrastructure
• Wire Entry Orientation: Both specify 270° free-hanging (in-line) configuration, maintaining identical spatial orientation and installation requirements
• Electrical Ratings: The substitute part provides IEC ratings of 23A at 400V and UL ratings of 20A at 300V, meeting or exceeding the electrical requirements of the original component
• Termination Method: Both utilize screw-clamping technology with identical wire gauge compatibility (12-30 AWG / 0.2-4mm²)
• Compliance Status: Both are RoHS compliant with MSL 1 rating and REACH unaffected status

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1947740000 is the appropriate replacement for the obsolete 1894090000. Selection is based on:

• Active Product Status: The substitute maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts maintain identical RoHS compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications
• Certification Alignment: Both components carry MSL 1 rating, indicating no moisture sensitivity constraints during storage or handling
• Mechanical Compatibility: Identical pitch, position count, and orientation parameters guarantee direct mechanical substitution without redesign of mating interfaces or mounting structures

Frequently Asked Questions (FAQ)

Q: Can the 1947740000 directly replace the 1894090000 in existing installations?

A: Yes. Both parts share identical mechanical specifications (23 positions, 5.08mm pitch, 270° orientation) and mounting type (free-hanging in-line), enabling direct substitution without modification to receptacles or mounting hardware.

Q: Are there electrical rating differences between the original and substitute?

A: The original part number does not specify electrical ratings in available documentation. The substitute part 1947740000 provides documented IEC ratings of 23A at 400V and UL ratings of 20A at 300V. Verify that these ratings meet or exceed the application requirements.

Q: What is the significance of the product status change from Obsolete to Active?

A: The substitute part maintains active manufacturing status, ensuring continued availability for procurement and replacement cycles. The original obsolete status indicates discontinued production, making the substitute the appropriate long-term solution.

Q: Are there packaging differences between these parts?

A: The original part packaging is not specified. The substitute is supplied in bulk packaging. Confirm packaging requirements for your procurement and inventory management processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) ratings, satisfying identical regulatory and environmental requirements.