Weidmüller 1748000000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1748000000 is a 36-position terminal block plug with female sockets, 0.138" (4.60mm) pitch, designed for 180° free-hanging in-line applications. This component operates within IEC ratings of 10.3A at 200V and UL ratings of 10A at 300V, supporting wire gauges from 16-28 AWG (0.2-1mm²). The part is classified as obsolete, necessitating identification of active equivalent models to maintain system compatibility and ensure continued availability for new installations and replacements.

Substiute Parts

1748000000

WeidmüllerIn Stock: 10721748000000 Datasheet

Current PartRFQ

1277640000

WeidmüllerIn Stock: 11571277640000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete Weidmüller 1748000000 is based on the following critical parameters that must remain consistent:

Fixed Parameters (Non-Negotiable):

• Number of positions: 36
• Positions per level: 18
• Number of levels: 2
• Pitch: 0.138" (4.60mm)
• Plug wire entry: 180°
• Mounting type: Free Hanging (In-Line)
• Type: Plug, Female Sockets
• Manufacturer: Weidmüller

Allowed Parameter Variations:

• Termination style (Screwless - Spring Cage vs. Screwless - Leg Spring)
• Current rating (IEC: 10.3A to 13.4A; UL: 10A to 9.5A)
• Voltage rating (IEC: 200V to 320V; UL: 300V maintained)
• Wire gauge range (16-28 AWG to 16-26 AWG; 0.2-1mm² to 0.14-1.5mm²)
• Operating temperature range (-50°C to 100°C extended to -50°C to 120°C)
• Housing material (PBT to PA66 Glass Filled)
• Wire strip length (7mm to 10mm)
• Series designation (Omnimate B2L to Omnimate B2CF)
• Product status (Obsolete to Active)

The substitute part 1277640000 maintains all fixed parameters while offering enhanced electrical ratings, extended temperature range, and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1277640000 is the designated manufacturer substitute for the obsolete 1748000000. Selection of this substitute is supported by the following engineering criteria:

Product Status: The 1277640000 maintains active product status, ensuring continued availability, technical support, and supply chain reliability. The original 1748000000 is classified as obsolete, creating supply and support risks.

Compliance & Certifications: Both parts maintain identical compliance profiles:

• RoHS Compliant
• REACH Unaffected
• UL94 V-0 flammability rating
• IP20 ingress protection
• Tin contact mating finish

Electrical Performance: The substitute provides enhanced electrical ratings while maintaining compatibility with the original application envelope:

• IEC current capacity increased from 10.3A to 13.4A
• IEC voltage capacity increased from 200V to 320V
• UL voltage rating maintained at 300V
• UL current rating of 9.5A remains within acceptable operating parameters

Thermal Performance: Extended operating temperature range (-50°C to 120°C vs. -50°C to 100°C) provides improved performance margin in temperature-sensitive applications.

Mechanical Compatibility: Identical pitch (4.60mm), position count (36), configuration (18 positions per level, 2 levels), and mounting type (free-hanging in-line) ensure direct mechanical substitution without redesign.

Material Enhancement: Housing material upgrade from PBT to PA66 glass-filled nylon provides improved mechanical durability and thermal stability.

Frequently Asked Questions (FAQ)

Q: Can the 1277640000 be used as a direct replacement for the 1748000000?

A: Yes. Both parts share identical pitch (4.60mm), position count (36), configuration (18 per level, 2 levels), and mounting type (free-hanging in-line). The substitute maintains all fixed mechanical and electrical parameters required for direct substitution.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete vs. active), termination mechanism (spring cage vs. leg spring), housing material (PBT vs. PA66 glass-filled), and enhanced electrical ratings (IEC: 10.3A/200V to 13.4A/320V). Operating temperature range is extended from 100°C to 120°C maximum.

Q: Are there wire gauge compatibility considerations?

A: The 1748000000 supports 16-28 AWG (0.2-1mm²). The 1277640000 supports 16-26 AWG (0.14-1.5mm²). Applications using 27-28 AWG wire require verification that the substitute's 16-26 AWG range is acceptable. The substitute supports larger wire sizes up to 1.5mm².

Q: Does the substitute meet the same compliance requirements?

A: Yes. Both parts are RoHS Compliant, REACH Unaffected, and carry UL94 V-0 flammability ratings. Ingress protection (IP20) and contact material (copper alloy with tin finish) are identical.

Q: What is the impact of the different termination styles?

A: The original uses spring cage tension clamp termination. The substitute uses leg spring push-in spring termination. Both are screwless termination methods. The substitute's push-in spring design may offer improved insertion/extraction characteristics while maintaining electrical performance.

Q: Is the housing material change significant?

A: The upgrade from PBT to PA66 glass-filled nylon provides enhanced mechanical strength and thermal stability. This represents a material improvement suitable for the same application envelope.

Q: What packaging is available for the substitute?

A: The 1277640000 is available in bulk packaging, with 1061 pieces in current stock.