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GMT-DUMMY Equivalent & Substitute Parts Reference
Part Overview
The GMT-DUMMY is an indicating fuse dummy manufactured by Eaton - Bussmann Electrical Division, designed for telecom applications requiring a 125 VAC / 60 VDC rated indicating fuse assembly. This component functions as a placeholder or test element within fuse holder systems and is classified as an active product with full RoHS compliance. Substitute parts are identified when electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in existing assemblies without circuit redesign.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | GMT-DUMMY |
| Manufacturer | Eaton - Bussmann Electrical Division |
| Series | GMT |
| Fuse Type | Indicating Fuse |
| Voltage Rating - AC | 125 VAC |
| Voltage Rating - DC | 60 VDC |
| Current Rating | Dummy |
| Response Time | Fast Blow |
| Breaking Capacity @ Rated Voltage | 300A AC, 450A DC |
| Mounting Type | Requires Holder |
| Package / Case | Alarm Indicator, Dummy |
| Size / Dimension | 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm) |
| RoHS Status | RoHS Compliant |
| Approval Agency | UR |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the GMT-DUMMY is determined by strict equivalence across the following parameters:
- Voltage Rating - AC: 125 VAC
- Voltage Rating - DC: 60 VDC
- Fuse Type: Indicating Fuse
- Response Time: Fast Blow
- Breaking Capacity @ Rated Voltage: 300A AC, 450A DC
- Mounting Type: Requires Holder
- Physical Dimensions: 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm)
- RoHS Compliance: Required
- Approval Agency: UR
The substitute part BK/GMT-DUMMY meets all these criteria and is classified as a direct equivalent within the GMT series.
Parameter Comparison
| Parameter | GMT-DUMMY | BK/GMT-DUMMY | Match |
|---|---|---|---|
| Manufacturer | Eaton - Bussmann Electrical Division | Eaton - Bussmann Electrical Division | Yes |
| Series | GMT | GMT | Yes |
| Fuse Type | Indicating Fuse | Indicating Fuse | Yes |
| Voltage Rating - AC | 125 VAC | 125 VAC | Yes |
| Voltage Rating - DC | 60 VDC | 60 VDC | Yes |
| Current Rating | Dummy | Dummy | Yes |
| Response Time | Fast Blow | Fast Blow | Yes |
| Breaking Capacity @ Rated Voltage | 300A AC, 450A DC | 300A AC, 450A DC | Yes |
| Mounting Type | Requires Holder | Requires Holder | Yes |
| Package / Case | Alarm Indicator, Dummy | Alarm Indicator, Dummy | Yes |
| Size / Dimension | 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm) | 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm) | Yes |
| RoHS Status | RoHS Compliant | RoHS Compliant | Yes |
| Approval Agency | UR | UR | Yes |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
Both GMT-DUMMY and BK/GMT-DUMMY are active products manufactured by Eaton - Bussmann Electrical Division with identical electrical and mechanical specifications. Selection between these parts is based on availability and procurement requirements. Both components carry UR approval and full RoHS compliance, meeting regulatory requirements for telecom applications. The interchangeability is complete across all specified parameters, including voltage ratings, breaking capacity, physical dimensions, and functional characteristics.
Frequently Asked Questions (FAQ)
Q: Can BK/GMT-DUMMY replace GMT-DUMMY in existing assemblies?
A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (125 VAC / 60 VDC), breaking capacity (300A AC, 450A DC), physical dimensions (0.688" L x 0.127" W x 0.810" H), and functional classification as indicating fuse dummies. Direct substitution is valid.
Q: What determines substitution eligibility for GMT-DUMMY?
A: Substitution requires exact matching of voltage ratings (125 VAC / 60 VDC), fuse type (indicating fuse), response time (fast blow), breaking capacity (300A AC, 450A DC), mounting configuration (requires holder), physical dimensions, RoHS compliance status, and UR approval.
Q: Are there any packaging differences between GMT-DUMMY and BK/GMT-DUMMY?
A: Both parts are supplied in bulk packaging as alarm indicator dummy fuses. Packaging format is identical.
Q: Do both parts require the same holder assembly?
A: Yes. Both GMT-DUMMY and BK/GMT-DUMMY require a compatible fuse holder and are mechanically identical with dimensions of 0.688" L x 0.127" W x 0.810" H (17.48mm x 3.23mm x 20.57mm).
Q: Are both parts RoHS compliant?
A: Yes. Both GMT-DUMMY and BK/GMT-DUMMY are RoHS compliant and carry UR approval certification.
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