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KT4-BK Equivalent & Substitute Parts
Part Overview
The KT4-BK is a 4-circuit barrier block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® KT4 series. This component is designed for chassis and panel mounting applications requiring 30A current capacity at 600V. The KT4-BK features a black color variant with enclosed barrier protection and accepts wire gauges from 10-22 AWG through screw termination.
The KT4-BK is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility, ensure continued availability, and support ongoing maintenance and replacement requirements for legacy installations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Eaton - Bussmann Electrical Division |
| Series | Magnum® KT4 |
| Terminal Block Type | Barrier Block |
| Number of Circuits | 4 |
| Pitch | 0.250" (6.35mm) |
| Current Rating | 30A |
| Voltage Rating | 600V |
| Wire Gauge | 10-22 AWG |
| Top Termination | Screws |
| Barrier Type | Enclosed |
| Mounting Type | Chassis, Panel |
| Operating Temperature | 105°C |
Substitute Part Grouping Explanation
Substitution eligibility for the KT4-BK is determined by strict equivalence across the following electrical and mechanical parameters:
- Number of circuits: 4
- Pitch spacing: 0.250" (6.35mm)
- Current rating: 30A
- Voltage rating: 600V
- Wire gauge acceptance: 10-22 AWG
- Termination method: Screws (top), Closed (bottom)
- Barrier type: Enclosed
- Mounting configuration: Chassis and panel mounting capability
- Operating temperature: 105°C
The KT4-WH-A meets all substitution criteria. This part is functionally identical to the KT4-BK with the exception of color (white versus black) and product status (active versus obsolete). Color variation does not affect electrical or mechanical performance in barrier block connector applications.
Parameter Comparison
| Parameter | KT4-BK (Main Part) | KT4-WH-A (Substitute) |
|---|---|---|
| Manufacturer | Eaton - Bussmann Electrical Division | Eaton - Bussmann Electrical Division |
| Series | Magnum® KT4 | Magnum® KT4 |
| Terminal Block Type | Barrier Block | Barrier Block |
| Number of Circuits | 4 | 4 |
| Number of Wire Entries | 8 | 8 |
| Pitch | 0.250" (6.35mm) | 0.250" (6.35mm) |
| Number of Rows | 2 | 2 |
| Current Rating (Amps) | 30A | 30A |
| Voltage Rating | 600V | 600V |
| Wire Gauge | 10-22 AWG | 10-22 AWG |
| Top Termination | Screws | Screws |
| Bottom Termination | Closed | Closed |
| Barrier Type | Enclosed | Enclosed |
| Features | Flange | Flange |
| Color | Black | White |
| Mounting Type | Chassis, Panel | Chassis, Panel |
| Operating Temperature | 105°C | 105°C |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | RoHS Compliant |
Engineering Selection Recommendations
The KT4-WH-A is a direct functional substitute for the KT4-BK. Both parts are manufactured by Eaton - Bussmann Electrical Division within the same Magnum® KT4 series and share identical electrical specifications, mechanical dimensions, and termination characteristics.
The primary distinction is product status: the KT4-BK is obsolete while the KT4-WH-A is active. Selection of the KT4-WH-A ensures access to current manufacturing, ongoing inventory availability, and compliance with modern standards. The KT4-WH-A carries RoHS compliance certification, whereas RoHS status for the KT4-BK is not specified.
For new designs or replacement applications, the KT4-WH-A is the appropriate selection. For legacy system maintenance where color specification is critical, the KT4-BK may be sourced from existing inventory if available, though the KT4-WH-A will function identically in all electrical and mechanical respects.
Frequently Asked Questions (FAQ)
Q: Can the KT4-WH-A replace the KT4-BK in existing installations?
A: Yes. The KT4-WH-A is electrically and mechanically equivalent to the KT4-BK. Both parts accept identical wire gauges (10-22 AWG), support the same current (30A) and voltage (600V) ratings, and feature identical pitch spacing (0.250"), termination methods, and mounting configurations. The only difference is color.
Q: Does the color difference affect performance?
A: No. Color is a cosmetic attribute and does not affect electrical performance, mechanical fit, or thermal characteristics. Both the black (KT4-BK) and white (KT4-WH-A) variants operate identically within the specified 105°C temperature range.
Q: Why is the KT4-BK listed as obsolete?
A: Obsolescence indicates that the manufacturer has discontinued production of this specific part number. The KT4-WH-A remains in active production and is the current equivalent offering from Eaton - Bussmann Electrical Division.
Q: Is the KT4-WH-A RoHS compliant?
A: Yes. The KT4-WH-A is RoHS compliant. RoHS status for the KT4-BK is not specified in available documentation.
Q: What packaging is available for the KT4-WH-A?
A: The KT4-WH-A is supplied in bulk packaging. The KT4-BK packaging specification is not provided.
Q: Are both parts suitable for chassis and panel mounting?
A: Yes. Both the KT4-BK and KT4-WH-A support chassis and panel mounting configurations through their flange feature.
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