Loadbreak Elbow & Load Break Disconnect Fuses
DENCO loadbreak elbow fuses are current-limiting fuses built into a fused elbow for 25kV class underground distribution, with a load break disconnect variant. The element is silver in a silica sand fill within a fiberglass body.
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Specifications
| Parameter | Value |
|---|---|
| Nominal system voltage | 25kV class (AC) |
| Nominal fuse voltage | 15.5kV maximum (AC) |
| Ampere rating | 20A |
| Interrupting rating | 50kA |
| Construction | Fiberglass tube body, silver-plated terminals, silver (Ag) element, star tube, silica sand H31, brass bushing |
| Published curves | Time-current curve, I2t correction curve and watts-loss correction curve |
Applications
- 25kV class underground distribution
- Fused elbow terminations
- Load break disconnect duty
Limits and boundaries
- Single published rating (20A at 15.5kV) -- confirm availability of other ratings with DENCO
- Elbow and disconnect variants differ; confirm which is required
Standards and testing
- Tested to CESI-IPH test report Nr. 23152130449.0258
Wording reflects the evidence DENCO holds. “Designed to” a standard is not the same as certified or listed to it; where a certification exists we publish the certificate number.
Technical documents
Data sheets, dimensional drawings and time-current curves for this family are available on request. Ask for the documents you need.
What we need to quote
Voltage and whether the system is AC or DC, continuous current, required interrupting rating, physical dimensions and mounting, any indicator requirement, and the standard or approval you must meet. A photograph or drawing of the existing part is usually the fastest route.
Technical review
Specifications on this page are quoted from DENCO’s product catalog. Confirm any rating against DENCO engineering before specifying.
Related
Request a quote for Loadbreak Elbow & Load Break Disconnect Fuses