CB20721500 Equivalent & Substitute Parts Reference

Part Overview

The CB20721500 is a 15-circuit barrier block connector manufactured by Eaton - Electronics Division, part of the Magnum® CB2000 series. This through-hole mounted terminal block features 0.375" (9.53mm) pitch spacing, screw-type top termination, and PC pin bottom termination, rated for 30A at 300V with wire gauge compatibility of 12-22 AWG.

The CB20721500 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system compatibility, ensure continued availability for repair and maintenance applications, and support legacy equipment requiring this specific connector configuration.

Substiute Parts

CB20721500

Eaton - Electronics DivisionIn Stock: 911CB20721500 Datasheet

Current PartRFQ

T37160-15-0

Curtis IndustriesIn Stock: 979T37160-15-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB20721500 is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

• Terminal block type: Barrier block configuration
• Circuit count: 15 circuits
• Pitch spacing: 0.375" (9.53mm)
• Row configuration: Single row
• Voltage rating: 300V minimum
• Wire gauge compatibility: 12-22 AWG
• Top termination method: Screw-type
• Barrier configuration: 3-wall (tri-barrier) design
• Flammability rating: UL94 V-0

The Curtis Industries T37160-15-0 qualifies as a substitute part based on matching all critical parameters. Both parts share identical circuit count, pitch spacing, row configuration, voltage rating, wire gauge range, screw termination, tri-barrier design, and UL94 V-0 flammability rating.

Parameter Comparison

Engineering Selection Recommendations

The T37160-15-0 serves as an active substitute for the obsolete CB20721500 based on matching all critical electrical and mechanical parameters required for barrier block connector functionality.

Compliance Considerations:

The T37160-15-0 holds ROHS3 compliance status, whereas the CB20721500 is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the T37160-15-0 provides compliant component selection while maintaining functional equivalence.

Current Rating Differential:

The CB20721500 is rated for 30A, while the T37160-15-0 is rated for 20A. Applications requiring current capacity exceeding 20A cannot use the T37160-15-0 as a direct substitute. Current requirements must be verified against the 20A maximum rating of the substitute part.

Bottom Termination Difference:

The CB20721500 features PC pin bottom termination, while the T37160-15-0 uses wire wrap termination. PCB mounting compatibility must be evaluated based on the specific application's bottom-side connection requirements.

Insulation Material Variation:

The CB20721500 uses thermoplastic insulation material, while the T37160-15-0 uses polypropylene (PP). Both materials meet UL94 V-0 flammability requirements. Environmental and chemical compatibility should be assessed for the specific application context.

Frequently Asked Questions (FAQ)

Q: Can the T37160-15-0 directly replace the CB20721500 in all applications?

A: The T37160-15-0 matches all critical barrier block parameters including circuit count, pitch, voltage rating, wire gauge, and termination type. However, two application-specific factors require verification: current capacity (T37160-15-0 rated 20A versus CB20721500 rated 30A) and bottom termination method (wire wrap versus PC pin). These differences may affect compatibility depending on the specific circuit design and mounting requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: terminal block type (barrier block), circuit count (15), pitch spacing (0.375"), row configuration (single row), voltage rating (300V), wire gauge range (12-22 AWG), top termination method (screws), barrier design (3-wall), and flammability rating (UL94 V-0). Deviations in any of these parameters disqualify a part from serving as a substitute.

Q: Does the RoHS compliance difference affect electrical performance?

A: RoHS compliance status reflects manufacturing process and material composition standards rather than electrical performance characteristics. Both parts meet identical electrical specifications for voltage, current capacity within their respective ratings, and wire gauge compatibility. RoHS compliance becomes relevant only when regulatory requirements mandate compliant component selection.

Q: How do the different bottom termination methods affect installation?

A: The CB20721500 uses PC pin termination for direct PCB mounting through plated holes. The T37160-15-0 uses wire wrap termination, which requires wrapping connection wires around the termination posts. The installation method differs significantly; PCB compatibility must be confirmed before substitution.

Q: Are the insulation material differences significant for application selection?

A: Both thermoplastic (CB20721500) and polypropylene (T37160-15-0) insulation materials achieve UL94 V-0 flammability ratings. Material selection becomes relevant only when specific environmental conditions, chemical exposure, or mechanical stress requirements favor one material over the other. Standard electrical applications typically show no functional difference.