Eaton Bussmann 16390-3 Power Stud Terminal Block Equivalent & Substitute Parts

Part Overview

The Eaton Bussmann 16390-3 is a 3-pole power stud terminal block rated for 250 A at 600 V, designed for high-current power distribution applications. Part of the Magnum® 163 series, this component features stud-type connections on both line and load sides with 3/8"-16x1 1/8" studs. The product is currently active and RoHS compliant. Substitute parts may be required due to inventory constraints, application-specific requirements, or regional availability considerations.

Substiute Parts

16390-3

Eaton - Bussmann Electrical DivisionIn Stock: 76116390-3 Datasheet

Current PartRFQ

NC6-P107-03

TE Connectivity AMP ConnectorsIn Stock: 7861NC6-P107-03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The NC6-P107-03 from TE Connectivity is listed as a substitute part number for the 16390-3. However, substitution between these components is not supported based on electrical and mechanical parameters. The NC6-P107-03 is a barrier block connector with the following critical differences:

Key Parameters Determining Substitution Compatibility:

• Current Rating: 16390-3 rated at 250 A; NC6-P107-03 rated at 20 A
• Voltage Rating: 16390-3 rated at 600 V; NC6-P107-03 rated at 300 V
• Connection Type: 16390-3 uses stud connections; NC6-P107-03 uses screw terminations with PC pin bottom connections
• Terminal Block Type: 16390-3 is a power stud block; NC6-P107-03 is a barrier block
• Wire Gauge Compatibility: 16390-3 accommodates 3/8"-16 studs; NC6-P107-03 accommodates 12-22 AWG wire

These components serve fundamentally different applications and cannot be interchanged in circuits requiring the electrical and mechanical specifications of the 16390-3.

Parameter Comparison

Engineering Selection Recommendations

The 16390-3 and NC6-P107-03 are not electrically or mechanically interchangeable. Selection must be based on application requirements:

For applications requiring 250 A at 600 V with stud connections: The 16390-3 is the appropriate component. Both parts are active products with current compliance certifications (RoHS and ROHS3 respectively).

For low-current applications (≤20 A) at ≤300 V with screw terminations: The NC6-P107-03 may be considered, provided the barrier block configuration and wire gauge range (12-22 AWG) meet application needs.

Component selection must verify that voltage, current, and connection type requirements are met by the chosen part. No cross-substitution is permissible between these two components.

Frequently Asked Questions (FAQ)

Q: Can the NC6-P107-03 be used as a direct replacement for the 16390-3?

A: No. The NC6-P107-03 has significantly lower current (20 A vs. 250 A) and voltage (300 V vs. 600 V) ratings. The connection types are also fundamentally different (screw/PC pin vs. stud). These components are not interchangeable.

Q: What are the critical parameters that determine if a terminal block can substitute for the 16390-3?

A: A substitute must meet or exceed: 250 A current rating, 600 V voltage rating, 3-pole configuration, and stud-type connections on both line and load sides with 3/8"-16x1 1/8" stud specifications.

Q: Are both parts RoHS compliant?

A: Yes. The 16390-3 is RoHS Compliant, and the NC6-P107-03 is ROHS3 Compliant. Both meet current environmental compliance requirements.

Q: What is the difference between a power stud block and a barrier block?

A: A power stud block (16390-3) uses threaded studs for high-current connections, suitable for power distribution. A barrier block (NC6-P107-03) uses screw terminals with wire entries, designed for lower-current signal and control circuits.

Q: Can the 16390-3 accommodate wire connections instead of stud connections?

A: No. The 16390-3 is designed exclusively for stud-type connections on both line and load sides. Wire connections are not supported by this component design.