| Brand | ROCKWILL |
| Model NO. | Outdoor MV Automatic Recloser(Reclosure) China Factory-15kV |
| Rated voltage | 15kV |
| Rated normal current | 800A |
| Rated short circuit breaking current | 20kA |
| Power frequency withstand voltage | 28kV/min |
| Rated lightning impulse voltage | 95kV |
| manual closing | Yes |
| Mechanical lock | No |
| Series | RCW |
The RCW outdoor medium voltage reclosers can use on overhead distribution lines as well as distribution substation applications for all voltage 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’srecloser controller.

|
Item |
Specification |
|
Rated maximum voltage |
15kV |
|
Rated maximum current |
1250A |
|
Rated frequency |
50Hz |
|
Rated short circuit breaking current |
16kA |
|
Rated peak value withstand current |
40kA |
|
Rated 1min power frequency withstand voltage (Three-phase Epoxy resin pole) |
28kV |
|
Rated lightning impulse voltage (Three-phase Epoxy resin pole) |
95kV |
|
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 (Three-phase Epoxy resin pole) |
≤3 |
|
Opening time |
≤30ms (Magnetic actuator) |
|
Closing time |
≤40ms (Magnetic actuator) |
|
Minimum creepage distance |
31, level 4 (mm/kV) |
|
Minimum distance between phases |
360mm |
|
Potential transformer |
110/220V (Customized) |
|
Cable length |
6,8,12m (Customized) |
|
Cable clamp (Three-phase Epoxy resin pole) |
2-hole NEMA |
|
Lightning arrester |
≤6 |
|
Mounting type |
Single / double column |

|
With optional relay protection & logics for user choice |
Instantaneous over-current protection Timing over-current protection Negative sequence over-current protection Directional over-current protection(⁽¹⁾) Over-voltage protection / Under voltage protection Programmable protection relay curves (total 10 nos ANSI/IEC curves) Cold load pickup protection TCC + Hot line tag Earth protection E/F SEF + Zone- Sequence Co-ordination More relay functions can be customized |
|
With optional communication protocols & I/O port for user choice |
RS-232 and RS-485 ports supporting DNP3.0 communication protocol support Modbus communication protocol is optional IEC 60870-501 communication protocol support IEC 60870-5-104 communication protocol support The recloser can communicate through GPRS(or) GSM(or) GPRS/GSM module with English or Specified language |
|
With optional functions for use |
Rated currents, System phase current, Rated voltages, System phase voltage and secondary low voltage power supply voltage Frequency power (kWh), reactive power (kVarh), power factor |
|
With optional reclosing interval for user pre-program |
reclosing times setting support Dead time setting support |
|
With events recording function |
SOE 10000 operations record Fault record and normal operation record Note:mean should customized by manufacturer if needed |



|
Maximum temperature: |
+40°C |
|
Minimum temperature: |
-30°C |
|
Monthly average humidity |
95% |
|
Humidity: |
90% |
|
Above sea level: |
2500m or higher |
|
Ambient air Not apparently polluted by corrosive and flammable gas, vapor |
Different power grid master stations adopt diverse communication standards. The optional communication protocols and I/O ports allow users to select matched configurations according to their existing system architecture.
RCW MV vacuum recloser enables seamless connection with various local SCADA systems and facilitates flexible expansion of signal acquisition and output functions.
Yes, Rockwill provides a comprehensive OEM/ODM program for our RCW Outdoor Medium Voltage Recloser. We partner exclusively with regional manufacturers and distributors who possess robust engineering expertise and local service capabilities, ensuring they can deliver outstanding technical support alongside our advanced technology.
While the ZW32 is a basic switch requiring an external controller, the RCW Outdoor Medium Voltage Recloser is a fully integrated smart grid solution with built-in protection, sensors, and communication.
Furthermore, it strictly complies with IEC/ANSI standards and uses premium insulation designed specifically for international distribution automation projects.
The Rockwill standard smart recloser offers high precision with a wide measuring range (2A–16,000A). Simply ensure your normal current is within this standard range when making a selection.
Yes. In addition to the standard 2A–16,000A range, Rockwill provides custom-configured units for ultra-low current measurement and protection in the 0.1A–2A range.