Phoenix Contact 1911978 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1911978 is a 3-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, designed for 180° free-hanging in-line applications. This component is part of the COMBICON MSTB series and is actively manufactured. Terminal block plugs are essential interconnection components in industrial control systems, power distribution panels, and modular equipment where reliable screw-terminal connections are required. Substitute parts may be necessary due to inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

1911978

Phoenix ContactIn Stock: 9451911978 Datasheet

Current PartRFQ

0395300003

MolexIn Stock: 45010395300003 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1911978 is determined by strict alignment of the following critical parameters:

• Connector Type & Configuration: Plug with female sockets, 3-position, 0.200" (5.08mm) pitch
• Wire Entry Orientation: 180° free-hanging in-line configuration
• Termination Method: Screw-terminal with rising cage clamp mechanism
• Electrical Ratings: Current and voltage ratings must meet or exceed UL specifications (16 A, 300 V minimum)
• Wire Gauge Compatibility: Acceptable wire gauge range must overlap with 12-30 AWG
• Mechanical Dimensions: Insulation height and screw size (M3) must match
• Compliance & Status: Active product status with ROHS3 compliance required

The Molex 0395300003 qualifies as a substitute based on matching pitch, connector type, wire entry orientation, termination style, screw size, insulation height, and compliance certifications. Differences in current rating (15 A vs. 16 A), wire gauge range (12-26 AWG vs. 12-30 AWG), and torque specification are within acceptable engineering tolerances for equivalent functionality.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 1911978 and Molex 0395300003 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial applications. The Phoenix Contact 1911978 provides a 16 A current rating and supports wire gauges up to 30 AWG, offering broader compatibility with finer gauge conductors. The Molex 0395300003 operates at 15 A with a maximum wire gauge of 26 AWG, suitable for applications within these electrical and gauge parameters. Both components feature identical pitch (5.08mm), screw size (M3), insulation height (15.00mm), and termination methodology, ensuring mechanical and electrical interchangeability within their respective rated specifications. Selection between these parts should be based on application current requirements, wire gauge specifications, and component availability.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395300003 directly replace the Phoenix Contact 1911978 in all applications?

A: The Molex 0395300003 is mechanically and electrically compatible with the Phoenix Contact 1911978 for applications operating at 15 A or below and using wire gauges between 12-26 AWG. Applications requiring the full 16 A rating or wire gauges larger than 26 AWG should use the Phoenix Contact part.

Q: What are the critical dimensions that ensure substitution compatibility?

A: The 0.200" (5.08mm) pitch, M3 screw size, and 0.591" (15.00mm) insulation height are critical dimensions that must match for mechanical interchangeability. Both parts meet these specifications.

Q: Are there differences in wire entry configuration between these parts?

A: No. Both the Phoenix Contact 1911978 and Molex 0395300003 feature 180° free-hanging in-line wire entry orientation, ensuring identical installation and mating characteristics.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity level), meeting equivalent regulatory and environmental standards.

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

A: The Phoenix Contact 1911978 supports 12-30 AWG while the Molex 0395300003 supports 12-26 AWG. If your application uses wire gauges 28-30 AWG, the Phoenix Contact part is required. For 12-26 AWG applications, both parts are suitable.

Q: How do the current ratings affect substitution decisions?

A: The Phoenix Contact 1911978 is rated for 16 A at 300 V UL, while the Molex 0395300003 is rated for 15 A at 300 V UL. For circuits requiring the full 16 A capacity, use the Phoenix Contact part. For 15 A or lower circuits, both parts are acceptable.