| Brand | ROCKWILL |
| Model NO. | MV Single-phase vacuum recloser original manufacturer-15.6kV |
| Rated voltage | 15.6kV |
| Rated normal current | 400A |
| Rated short circuit breaking current | 12.5kA |
| Power frequency withstand voltage | 65kV/min |
| Rated lightning impulse voltage | 140kV |
| manual closing | Yes |
| Series | RCW |
The RCW series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for allvoltage classes 11kV up to 38kV at 50/60Hz power system. and it’s rated current can reach 1250A.
The RCW series automatic circuit reclosers integrates the functions of control, protection, measurement, communication, fault detection, on-line monitoring of closing or opening.The RCW series vacuum recloser is mainly combined with integration terminal, current transformer, permanent magnetic actuator and it’s recloser controller.
Optional grades available in rated current range.
With optional relay protection and logic for user selection.
With optional communication protocols and I/O ports for users to choose.
PC software for controller testing, setup, programming, updates.
| Parameter | Value |
|---|---|
| Rated maximum voltage | 15.6kV |
| Rated maximum current | 1250A |
| Rated frequency | 50Hz |
| Rated short circuit breaking current | 12.5kA |
| Rated peak value withstand current | 31.5kA |
| Rated 1min power frequency withstand voltage (Single-phase Epoxy resin pole) | 65kV |
| Rated lightning impulse voltage (Single-phase Epoxy resin pole) | 140kV |
| Operation sequence | C-0.5-CO-2-CO-5-CO (Magnetic actuator) |
| Mechanical life | n:30000 (Magnetic actuator) |
| Power supply and operating voltage | 110/220V (Customized) |
| Ratio of current transformer | 400/1A (Customized) |
| Number of voltage sensors (Single-phase Epoxy resin pole) | ≤2 |
| Opening time | ≤20ms (Magnetic actuator) |
| Closing time | ≤30ms (Magnetic actuator) |
| Minimum creepage distance | 31, level4 (mm/kV) |
| Minimum distance between phases | 360mm |
| Potential transformer | 110/220V (Customized) |
| Cable length | 6, 8, 12m (Customized) |
| Cable clamp (Single-phase Epoxy resin pole) | 4-hole NEMA |
| Lightning arrester | ≤6 |
| Mounting type | Single / double column |


| Maximum temperature: | +40℃ |
| Minimum temperature: | -30℃ |
| Monthly average humidity | 95% |
| Humidity: | 90% |
| Above sea level: | 2500m or higher |
| Ambient air not apparently polluted by corrosive and flammable gas, vapor | |
The ZW32-type VCB is a basic circuit breaker or demarcation switch without built-in auto-reclosing logic, whereas the RCW series is specifically engineered as a full-function recloser with integrated protection, sensors, and communication for smart grid applications.
Unlike the ZW32, which requires an external controller for automation, the RCW series complies with IEC 62271-111 and ANSI C37.60, and is supported by complete type test reports.With silicone rubber or epoxy insulation offering superior aging resistance and low water absorption, the RCW series is the professional choice for international distribution automation projects.
Yes. Rockwill stands behind the RCW series with one of the most comprehensive warranties in the recloser industry: a full 10-year warranty covering the complete recloser, including the vacuum interrupter, permanent magnet operating mechanism, and control electronics. Any failure resulting from material or manufacturing defects during the warranty period is eligible for free replacement. Our warranty terms are straightforward and transparent, with no hidden conditions or complex exclusions, giving you complete peace of mind.