Weidmüller 9994000000 Terminal Block: Equivalent & Substitute Parts

Part Overview

The Weidmüller 9994000000 is a 12-position wire-to-board terminal block from the Omnimate LM series, designed for horizontal PCB mounting with side entry wire connection. This component is classified as Active and remains in full production. Terminal blocks of this specification are essential in industrial control systems, power distribution panels, and modular automation equipment where reliable wire-to-board connections are required. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and compatibility with alternative sourcing strategies.

Substiute Parts

9994000000

WeidmüllerIn Stock: 7769994000000 Datasheet

Current PartRFQ

1991192

Phoenix ContactIn Stock: 11291991192 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Weidmüller 9994000000 is determined by the following critical parameters:

• Position Count: 12 positions per level (non-negotiable for connector compatibility)
• Pitch Tolerance: 0.200" (5.08mm) nominal pitch; minor deviations (±0.003") are acceptable within industry standards for PCB hole spacing
• Mating Orientation: Horizontal with board entry is the primary requirement; vertical entry represents a different form factor and may require PCB redesign
• Current and Voltage Ratings: Minimum 15 A at 300 V; higher ratings are acceptable
• Wire Gauge Compatibility: 14-24 AWG range; substitute parts must accommodate this range or a superset
• Mounting Type: Through hole PCB mounting is mandatory
• Wire Termination Method: Screw-based termination is the baseline; alternative termination methods (screwless spring cage) may be acceptable if mechanical and electrical performance is equivalent
• Compliance: RoHS and REACH compliance status must be maintained or improved

The Phoenix Contact 1991192 qualifies as a substitute based on equivalent electrical ratings, compatible pitch (5.00mm vs. 5.08mm, within tolerance), through-hole mounting, and superior compliance certifications. The primary design difference is mating orientation (vertical vs. horizontal) and termination method (screwless spring cage vs. screw clamping), which may require PCB layout evaluation.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Form Factor Compatibility

The Weidmüller 9994000000 and Phoenix Contact 1991192 differ in mating orientation. The Weidmüller features horizontal side entry, while the Phoenix Contact features vertical top entry. This difference directly impacts PCB layout and wire routing. Selection between these parts must be based on existing PCB design constraints and available space for wire entry.

Electrical Performance

Both parts meet or exceed the 300 V, 15 A baseline requirement. The Phoenix Contact 1991192 provides a 20 A current rating, offering additional margin in high-current applications. Voltage and current ratings are not limiting factors in substitution.

Compliance and Regulatory Status

Both parts maintain REACH Unaffected status. The Weidmüller 9994000000 is RoHS Compliant, while the Phoenix Contact 1991192 achieves the more stringent ROHS3 Compliant certification. For applications requiring enhanced environmental compliance, the Phoenix Contact part is preferable.

Wire Termination Method

The Weidmüller uses screw-based clamping with specified torque (0.4-0.5 Nm). The Phoenix Contact employs screwless spring cage termination. Screw-based termination allows field adjustment and re-termination; screwless termination provides faster assembly but limits post-installation modification. Selection depends on maintenance and field service requirements.

Pitch and PCB Compatibility

The 0.08mm pitch difference (5.08mm vs. 5.00mm) falls within standard PCB manufacturing tolerances. However, verification of existing PCB hole spacing is mandatory before substitution to ensure proper connector seating and electrical contact.

Product Status and Availability

Both parts are Active and in production. The Weidmüller 9994000000 has 669 units in stock; the Phoenix Contact 1991192 has 1108 units in stock, providing superior supply availability.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1991192 be used as a direct drop-in replacement for the Weidmüller 9994000000?

A: Direct drop-in replacement is not possible without PCB modification. The primary obstacle is mating orientation: the Weidmüller is horizontal side entry, while the Phoenix Contact is vertical top entry. This requires different PCB footprints and wire routing paths. Additionally, the pitch difference (5.08mm vs. 5.00mm) must be verified against existing PCB hole spacing. If your PCB is designed for horizontal entry, the Phoenix Contact requires layout redesign.

Q: Are the electrical ratings compatible?

A: Yes. Both parts are rated for 300 V operation. The Weidmüller is rated 15 A; the Phoenix Contact is rated 20 A. The Phoenix Contact's higher current rating makes it suitable for applications requiring the Weidmüller's 15 A specification.

Q: What is the difference between screw-based and screwless termination?

A: Screw-based termination (Weidmüller) uses a clamping yoke tightened to 0.4-0.5 Nm, allowing field adjustment and re-termination of wires. Screwless termination (Phoenix Contact) uses a spring cage mechanism for faster assembly but does not permit post-installation torque adjustment. Choose based on your maintenance and field service requirements.

Q: Does the pitch difference affect compatibility?

A: The 0.08mm difference (5.08mm vs. 5.00mm) is within standard PCB manufacturing tolerance. However, you must verify that your existing PCB hole spacing accommodates the Phoenix Contact's 5.00mm pitch. If your PCB was manufactured to 5.08mm spacing, the Phoenix Contact may not seat properly. Consult your PCB documentation or measure existing hole spacing before substitution.

Q: Are both parts RoHS compliant?

A: Yes. The Weidmüller 9994000000 is RoHS Compliant. The Phoenix Contact 1991192 is ROHS3 Compliant, which represents a more stringent environmental standard. Both parts are REACH Unaffected.

Q: Which part should I choose for new designs?

A: For new designs, the choice depends on your wire entry requirements. If horizontal side entry is preferred, the Weidmüller 9994000000 is the appropriate choice. If vertical top entry is acceptable or preferred, the Phoenix Contact 1991192 offers higher current rating (20 A), enhanced RoHS3 compliance, and greater stock availability (1108 units vs. 669 units).

Q: Can I use the Phoenix Contact part if my application requires screw-based termination?

A: No. The Phoenix Contact 1991192 uses screwless spring cage termination and does not provide screw-based clamping. If your application specifically requires screw-based termination for field adjustability or maintenance procedures, the Weidmüller 9994000000 is the only suitable option among these two parts.