5.5kV Capacitor / Special Purpose Fuses
The 5.5kV Capacitor / Special Purpose Fuses is part of the Mersen (formerly Ferraz Shawmut) medium voltage fuses line, distributed by Gross Automation.

Ferraz Shawmut capacitor fuses are designed to ANSI C37-41. They are current limiting operating without noise or discharge and are designed to be used indoors or outdoors in a weatherproof enclosure. These are non-disconnecting fuses requiring the usage of a disconnect switch. These capacitor fuses provide both short circuit and overload protection and are intended to protect against capacitor case rupture or dielectric failure within the capacitor. The various mounting configurations offer to the manufacturers a wide range of cost and space saving solutions. It provides to the users a large choice of equivalent products to the major fuse manufacturer’s.
Specifications
| Specification | Value |
|---|---|
| Features | High interrupting capacity; Current limiting; Blown fuse indicator; Direct mounting; Clip style mounting; Bus mounting; Non-venting for silent operation |
Features
- High interrupting capacity
- Current limiting
- Blown fuse indicator
- Direct mounting
- Clip style mounting
- Bus mounting
- Non-venting for silent operation
Ratings
- AC: 550C, 5500 VAC: 6 to 50 Amps, 65 kA I.R. Sym.
- Protection of capacitors
- Power Factor Correction Equipment
- Harmonic Filtering Equipment
- Induction Heating System
- High Power Drive
- Welder
Catalog Numbers
5.5 kV Max Type 15 external female to bolt
| Part Number | Ampere Rating | Melting I2t (kA2s) | Maximum Clearing I2t (kA2s) | Maximum 1 Phase Interrupting Rating |
|---|---|---|---|---|
| A550C6-15+ | 6 | 0.4 | 2.49 | 65 kA @ 5500V RMS Sym |
| A550C8-15+ | 8 | 0.73 | 4.31 | 65 kA @ 5500V RMS Sym |
| A550C10-15+ | 10 | 1.14 | 6.38 | 65 kA @ 5500V RMS Sym |
| A550C12-15+ | 12 | 1.6 | 8.64 | 65 kA @ 5500V RMS Sym |
| A550C18-15+ | 18 | 3 | 15 | 65 kA @ 5500V RMS Sym |
| A550C20-15+ | 20 | 4.5 | 22.1 | 65 kA @ 5500V RMS Sym |
| A550C25-15+ | 25 | 6.5 | 31.2 | 65 kA @ 5500V RMS Sym |
| A550C30-15+ | 30 | 7.7 | 36.2 | 65 kA @ 5500V RMS Sym |
| A550C35-15+ | 35 | 9 | 41.4 | 65 kA @ 5500V RMS Sym |
| A550C40-15+ | 40 | 12 | 54.6 | 65 kA @ 5500V RMS Sym |
| A550C50-15+ | 50 | 15 | 68 | 65 kA @ 5500V RMS Sym |
| A550C65-15+ | 65 | 35 | 156 | 50 kA @ 5500V RMS Sym |
| A550C75-15+ | 75 | 43 | 186 | 50 kA @ 5500V RMS Sym |
5.5 kV Max Type 70 tube to tube
| Part Number | Ampere Rating | Melting I2t (kA2s) | Maximum Clearing I2t (kA2s) | Maximum 1 Phase Interrupting Rating |
|---|---|---|---|---|
| A550C6-70+ | 6 | 0.4 | 2.49 | 65 kA @ 5500V RMS Sym |
| A550C8-70+ | 8 | 0.73 | 4.31 | 65 kA @ 5500V RMS Sym |
| A550C10-70+ | 10 | 1.14 | 6.38 | 65 kA @ 5500V RMS Sym |
| A550C12-70+ | 12 | 1.6 | 8.64 | 65 kA @ 5500V RMS Sym |
| A550C18-70+ | 18 | 3 | 15 | 65 kA @ 5500V RMS Sym |
| A550C20-70+ | 20 | 4.5 | 22.1 | 65 kA @ 5500V RMS Sym |
| A550C25-70+ | 25 | 6.5 | 31.2 | 65 kA @ 5500V RMS Sym |
| A550C30-70+ | 30 | 7.7 | 36.2 | 65 kA @ 5500V RMS Sym |
| A550C35-70+ | 35 | 9 | 41.4 | 65 kA @ 5500V RMS Sym |
| A550C40-70+ | 40 | 12 | 54.6 | 65 kA @ 5500V RMS Sym |
| A550C50-70+ | 50 | 15 | 68 | 65 kA @ 5500V RMS Sym |
| A550C65-70+ | 65 | 35 | 156 | 50 kA @ 5500V RMS Sym |
| A550C75-70+ | 75 | 43 | 186 | 50 kA @ 5500V RMS Sym |