Products
VariSTAR Type Composite Light-duty Under-oil (CLU) MOV Arrester
The Cooper Power Systems VariSTAR Type CLU Under-oil MOV arrester is designed in accordance with IEEE Std C62.11™ standard light duty distribution class requirements. It is designed for either horizontal or vertical mounting inside the distribution transformer tank to eliminate the difficulties associated with externally mounted arresters.
| Catalog Number | CLU |
| Commonly Applied Voltage Rating | Refer to Catalog 235-95 |
| Protective Characteristics | Refer to Catalog 235-95 |
Features
- The CLU Arrester design features a fail open or fail short option. The fail open version utilizes an isolation link as illustrated in Figures 3 and 4 on page 2 of Catalog 235-95. Since the isolation link is external of the arrester components, no components will be expelled into the transformer tank upon operation. The time-current characteristic curve is illustrated in Figure 5 in Catalog 235-95. The fail short version does not include the isolation link and will remain intact upon operation.
- Rigid mounting plates for a stronger mounting configuration.
- The CLU Arrester is compatible with mineral oil and Envirotemp FR3 fluid.
- The fiberglass-reinforced epoxy composite acts as a seal against all fluids; protecting the active components within the module.
