Weidmüller 1757550000 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Weidmüller 1757550000 is an 18-position terminal block plug with female sockets, 4.6mm pitch, designed for 180° free-hanging in-line applications. This component belongs to the Omnimate B2L series and features screwless push-in spring termination. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications where continued supply cannot be guaranteed.

Substiute Parts

1757550000

WeidmüllerIn Stock: 8431757550000 Datasheet

Current PartRFQ

1790360

Phoenix ContactIn Stock: 10751790360 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 1757550000 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of positions: 18
• Positions per level: 9
• Number of levels: 2
• Pitch: 0.138" (4.60mm)
• Type: Plug, Female Sockets
• Plug wire entry orientation: 180°
• Mounting type: Free Hanging (In-Line)
• Termination style: Screwless push-in spring
• Material flammability rating: UL94 V-0

Allowable Variation Parameters:

• Current rating: Substitute must meet or exceed IEC 10.3A and UL 10A requirements
• Voltage rating: Substitute must meet or exceed IEC 200V and UL 300V requirements
• Wire gauge range: Substitute must accommodate the 16-28 AWG (0.2-1mm²) range
• Operating temperature: Substitute must cover the -50°C to 100°C range
• Contact mating finish: May differ (gold vs. tin) based on application requirements
• Housing material: May differ (PBT vs. PA/Nylon) if flammability rating is maintained
• Color: May differ from orange

The Phoenix Contact 1790360 qualifies as a substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1790360 (COMBICON DFMC series) is an active product classified as suitable for substitution in applications where the following conditions are met:

Electrical Compatibility: The Phoenix Contact 1790360 operates at reduced current capacity (8A IEC/UL vs. 10.3A/10A for the original). This component is suitable only for circuits where the actual operating current does not exceed 8A. The voltage rating of 250V IEC exceeds the original 200V requirement; however, the UL voltage rating of 150V is lower than the original 300V. Verify that your application voltage does not exceed 150V when using UL compliance standards.

Mechanical Compatibility: Both components share identical pitch (4.6mm), position count (18), and mounting configuration (180° free-hanging in-line). The Phoenix Contact substitute accepts wire gauges 16-24 AWG, which is narrower than the original 16-28 AWG range. Confirm that your wire gauge falls within 16-24 AWG before selection. The wire strip length differs (10mm vs. 7mm) and insulation height differs (13.25mm vs. 15.70mm); verify these dimensions against your mechanical assembly constraints.

Compliance and Material: Both components maintain UL94 V-0 flammability rating and REACH Unaffected status. The Phoenix Contact substitute uses polyamide/nylon housing instead of PBT; both materials satisfy the flammability requirement. The contact mating finish differs (tin vs. gold); tin plating is suitable for standard industrial applications but may require evaluation in corrosive or high-reliability environments.

Product Status: The Phoenix Contact 1790360 is classified as active, ensuring continued availability and supply chain stability compared to the obsolete Weidmüller original.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1790360 directly replace the Weidmüller 1757550000 in all applications?

A: No. The Phoenix Contact substitute has lower current and voltage ratings in certain standards. Verify that your circuit operates at 8A or below (IEC/UL) and does not exceed 150V (UL standard). If your application requires the full 10.3A IEC or 300V UL rating, this substitute is not suitable.

Q: What is the significance of the different wire gauge ranges?

A: The original accepts 16-28 AWG; the substitute accepts 16-24 AWG. If your application uses 26 or 28 AWG wire, the Phoenix Contact substitute cannot accommodate these gauges. Confirm your wire gauge specification before selection.

Q: Does the difference in housing material (PBT vs. polyamide) affect performance?

A: Both materials meet UL94 V-0 flammability requirements. Polyamide housing may have different mechanical properties and chemical resistance compared to PBT. Evaluate your specific environmental conditions (temperature extremes, chemical exposure, mechanical stress) to determine if the material change is acceptable.

Q: Why do the wire strip length and insulation height differ?

A: These are design differences between manufacturers. The Phoenix Contact component requires 10mm wire strip length versus 7mm for the original, and has a lower insulation height (13.25mm vs. 15.70mm). Verify these dimensions fit your mechanical assembly, connector housing, and PCB layout before substitution.

Q: Is the tin contact finish suitable for my application?

A: Tin plating is standard for industrial terminal blocks and provides adequate corrosion resistance in typical environments. Gold plating (original) offers superior corrosion resistance in harsh or high-reliability applications. If your application involves high humidity, salt spray, or critical signal integrity, evaluate whether tin plating meets your requirements.

Q: What is the inventory status of each component?

A: The Weidmüller 1757550000 (obsolete) has 782 pieces in stock. The Phoenix Contact 1790360 (active) has 1052 pieces in stock, providing better long-term availability assurance.

Q: Are there any compliance or regulatory differences?

A: Both components are REACH Unaffected and classified as EAR99 for export control purposes. No regulatory differences exist between the two components.