| Brand | ROCKWILL |
| Series | RCW |
| Rated voltage | 15kV |
| Rated current | 400A 630A 800A 1250A |
| Rated short-circuit breaking current | 12.5kA 16kA 20kA 25kA |
| Power frequency withstand voltage | 45kV/min |
| Rated lightning impulse voltage | 125kV |
| Standard | IEC 62271‑1 IEC 62271-111 |
Description：
As a pioneering original equipment manufacturer (OEM) in China’s recloser industry, we have accumulated decades of R&D expertise, taken the lead in establishing the original industry standards, built a fully independent end-to-end production system, and delivered reliable product solutions for power grid construction.
The RCW series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for all voltage classes at 50/60Hz power system. and it’s rated current can reach 1250A.The RCW series automatic circuit reclosers integrates the functions ofcontrol, protection, measurement, communication, fault detection, on-linemonitoring 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.
Features：
Automatic Fault Isolation: Accurately identifies and isolates permanent faults within milliseconds, reducing outage scope by over 85%.
Automatic Service Restoration: Restores power to non-faulted sections within 2 seconds via intelligent topology reconfiguration, ensuring continuous operation of critical loads.
Fault Detection and Protection: Employs high-frequency transient recording and AI diagnostics to accurately identify 32 types of fault characteristics, enabling adaptive protection.
Sectionalizing Protection: Supports four-level grading coordination and virtual segmentation with ±10ms timing accuracy, eliminating the need for additional physical switches.
High Reliability and Durability: Core components are validated for 100,000 mechanical operations, featuring wide-temperature operation (-40°C to 75°C) and IP68 protection rating.
Environmentally Friendly: Utilizes vacuum arc-extinguishing technology with zero SF6 gas usage,
Parameters:
The voltage classes of some of these Automatic Reclosers include 6kV, 6.3kV, 6.6kV, 6.9kV, 7.2kV, 10kV, 10.5kV, 11kV, 11.5kV, 12kV, 13.2kV, 13.8kV, 14.5kV, 14.4kV, 15kV, 15.5kV, 15.6kV, 17.5kV, 20kV, 21.9kV, 22kV, 24kV, 30kV, 33kV, 33.5kV, 34.5kV, 35kV, 36kV, 38kV, 38.5kV, 40.5kV, 44kV, 45kV, 46kV, 66kV and 69kV. Rated Short-Circuit Breaking Current includes 8kA, 12.5kA, 16kA, 20kA, 25kA, 31.5kA and customization is available.
Rated maximum voltage |
15kV |
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 (Three-phase Silicone rubber pole (unable the gas)) |
45kV |
Rated lightning impulse voltage (Three-phase Silicone rubber pole (unable the gas)) |
120kV |
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 Silicone rubber pole (unable the gas)) |
≤3 |
Opening time |
≤30ms (Magnetic actuator) |
Closing time |
≤40ms (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 (Three-phase Silicone rubber pole (unable the gas)) |
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 |
Environmental requirement:
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 |
Product show:
Yes. The RCWP, a cost-optimized option in the RCW+ series, features dual sensors, flagship controller, and 30,000 operations with permanent magnet three-phase linkage, while offering downgrade options (lock box removal, lockout removal, sensor/controller downgrade) so customers pay only for what they need.
Yes. Rockwill vacuum recloser 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.
Yes. Protection, communication, current ratings, voltage sensors, cable length, and mounting type can all be customized. For different distribution configurations, we also offer Single-phase Recloser/Reclosure OEM/ODM China options.
It is designed for overhead distribution lines and distribution substations at 15kV. The recloser integrates control, protection, measurement, communication, and fault detection in one unit, helping reduce outage time and improve distribution reliability. It is also a suitable choice for Pole Mounted Recloser Manufacturer projects.
Yes. The recloser supports remote monitoring and control, and can be operated via mobile APP. This makes it suitable for Distribution Recloser projects that require flexible operation and real-time monitoring.
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.
Login
