Eaton Bussmann JCL-18R 390A 4.8kV nominal / 5.0kV max R-Rated R-Rated Medium Voltage Fuse
● LT: 12-16wJCL-18R: 390A; 4.8kV nominal / 5.0kV max; R-Rated; R-Rated Motor Protection; 50kA Sym. / 80kA Asym.
Rated Current390A
Rated Voltage4.8kV nominal / 5.0kV max
Breaking Capacity50kA Sym. / 80kA Asym.
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Part NumberJCL-18RBrandEaton BussmannRequested Qty
Eaton Bussmann JCL-18R is a r-rated medium voltage fuse rated 390A at 4.8kV nominal / 5.0kV max. Interrupting/SCCR rating: 50kA Sym. / 80kA Asym. Typical applications: Medium-voltage motor starters, Motor short-circuit protection. Source: Bussmann Full Line Catalog 1007 (2018), page 7-23/7-24.
Quick answer, specifications & FAQ
Direct answer
Eaton Bussmann Medium Voltage R-Rated Fuse JCL-18R is rated 390A, 4.8kV nominal / 5.0kV max. Breaking capacity 50kA Sym. / 80kA Asym.. Listed applications: Motor protection, Motor Starters. Standards: ANSI C37.46 R-Rated. JCL-18R: 390A; 4.8kV nominal / 5.0kV max; R-Rated; R-Rated Motor Protection; 50kA Sym. / 80kA Asym.
Key specifications
- Part number: JCL-18R
- Brand: Eaton Bussmann
- Rated current: 390A
- Rated voltage: 4.8kV nominal / 5.0kV max
- Breaking capacity: 50kA Sym. / 80kA Asym.
- Terminal type: Ferrule / Hookeye
- Standards: ANSI C37.46 R-Rated
- Typical lead time: 12-16 weeks
- Source: Bussmann Full Line Catalog 1007 (2018), page 7-23/7-24.
Frequently asked questions
What are the current and voltage ratings of JCL-18R?
JCL-18R is rated 390A at 4.8kV nominal / 5.0kV max.
What is the breaking capacity of JCL-18R?
JCL-18R has a breaking capacity of 50kA Sym. / 80kA Asym.. Confirm this covers the available fault current at the installation point.
Which standards and approvals apply to JCL-18R?
JCL-18R is listed under ANSI C37.46 R-Rated.
What is JCL-18R used for?
JCL-18R is listed for Motor protection, Motor Starters applications. Verify suitability for your circuit before ordering.
What are the ordering terms for JCL-18R?
JCL-18R: typical lead time 12-16 weeks. Submit a quote request for a firm quotation.
Data sources
- Part number
- JCL-18R
- Brand
- Eaton Bussmann
- Last updated
- 2026-10-10
- Canonical URL
- https://fusestock.com/products/eaton-bussmann-jcl-18r/
Technical Specifications
- Part Number
- JCL-18R
- Manufacturer Part Number
- JCL-18R
- Series
- 4.8kV R-Rated Series
- Fuse Type
- Medium Voltage R-Rated Fuse
- Current Rating
- 390A
- Voltage Rating
- 4.8kV nominal / 5.0kV max
- AC / DC
- AC
- Breaking Capacity
- 50kA Sym. / 80kA Asym.
- Mounting
- Ferrule / Clip
- Application
- Motor protection · Motor Starters
- Standard
- ANSI C37.46 R-Rated
- Terminal Type
- Ferrule / Hookeye
- Utilization Class
- R-Rated
- Reference Lead Time
- 12-16 weeks
- Source
- Bussmann Full Line Catalog 1007 (2018), page 7-23/7-24.
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