Smart Vacuum recloser with Controller OEM ODM China-27kV

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Series	RCW
Rated voltage	27kV
Rated normal current	1250A
Rated peak value withstand current	31.5kA
Rated lightning impulse voltage	150kV

Description

Rockwill RCW series automatic circuit reclosers are designed for overhead distribution lines and distribution substations, providing reliable fault interruption and automatic reclosure to minimize outage time. Integrating control, protection, measurement, communication, fault detection, and real-time monitoring of closing and opening operations, they deliver a comprehensive distribution automation solution.

Built around an integration terminal, current transformer, permanent magnetic actuator, and dedicated recloser controller, the solid-dielectric design is maintenance-friendly and suited to outdoor pole mounting. The RCW series is available as a single-phase recloser, three-phase recloser, or triple single-phase recloser, making it suitable for various overhead distribution configurations. Configuration and standards are customizable on request.

Product Showcase Video

Features

Flexible Current Ratings: Optional ratings within the rated current range to suit diverse application needs.
Customizable Protection: A variety of optional relay protection and logic schemes for users to choose from, ensuring adaptability to different system requirements.
Versatile Communication: Optional communication protocols and I/O ports available, enabling seamless integration with various monitoring and control systems.
User - Friendly Software: Equipped with PC software that supports controller testing, setup, programming, and updates, simplifying operation and maintenance.

Controller Detail

The RCW series recloser controller integrates protection, measurement, communication, and operation control in one unit. The front panel provides clear indicators, function keys, and local operation interfaces for setup, testing, and troubleshooting. The controller is designed for reliable outdoor operation and supports customizable protection schemes and communication protocols.

Recloser Controller – Smart Recloser China Manufacturer

Parameters

Item	Specification
Rated maximum voltage	27kV
Rated maximum current	400/630/800/1250 A
Rated frequency	50/60Hz
Rated short circuit breaking current	12.5/16/20/25 kA
Rated peak value withstand current	31.5/40/50/63 kA
Rated 1min power frequency withstand voltage (Three-phase Silicone rubber pole (unable the gas))	70kV
Rated lightning impulse voltage (Three-phase Silicone rubber pole (unable the gas))	150kV
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	380mm
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

The RCW series is available with customizable ratings, protection schemes, communication protocols, and I/O ports. As a Outdoor RecloserChina manufacturer and China supplier, Rockwill supports OEM/ODM projects, customized configurations, and wholesale orders.

Actual Product Photos of Three-Phase Smart Vacuum Recloser

Outdoor Pole Mounted Recloser – Automatic Recloser China Factory

Optional Relay Protection & Logics

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

Optional Communication Protocols & I/O Port

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

Optional Functions

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

Optional Reclosing Interval

Reclosing times setting support
Dead time setting support

Events Recording

SOE 10000 operations record
Fault record and normal operation record

Note: Mean should be 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

External dimensions

Three-Phase Smart Vacuum Recloser – Vacuum Recloser China Supplier

Site Operation Photo

Solutions for Vacuum recloser

Adaptive Recloser Solution for Indonesia's Volcanic Geothermal Plants: Enhancing Grid Resilience in Extreme Environments

Project BackgroundIndonesia possesses approximately 40% of the world's geothermal resources, with a geothermal power generation potential of 23–28 GW. However, by 2022, only about 2.3 GW had been developed. The government aims to achieve 5,000 MW of installed capacity by 2025 but faces multiple challenges: Grid Stability Issues: Geothermal plants are predominantly located in remote volcanic zones (e.g., Sumatra, Java), where frequent geological activity causes earthquake- and landslide-induced d

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Philippines Vacuum Recloser — Typhoon Failure Analysis and Wind-Resistant Remote O&M Solution for 13.2kV/34.5kV Distribution Networks

I. Core Challenges Facing the Philippine Distribution Network1.1 Frequent Typhoons — Mechanical Impact and Post-Disaster RestorationDimensionDataImpact on Distribution NetworkAverage annual typhoon landfalls20 (PAGASAdata)Lines endure continuous mechanical stress during the May-December typhoon seasonSuper typhoon maximum wind speed>250 km/h (e.g., 2024 Typhoon Gaemi)Broken conductors, collapsed poles, hardware fatigue fracturePost-typhoon area outage duration3-14 days (industry survey

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Reference Projects for Vacuum recloser

Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh

Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh01 Overall Project Overview1.1 Project BackgroundIn June 2024, 263 units of 33kV oil-immersed 32-step voltage regulator controller were officially delivered and applied to the Bangladesh Medium Voltage Distribution Network Upgrade Project. R&D and manufactured by Rockwill, these devices are used for voltage stability regulation, load fluctuation adaptation and power supply quality impr

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DTEK Grid Upgrade: Operation of Rockwill 10kV Smart Recloser in -40°C Extreme Cold Environment Ukraine Case Study

As a benchmark for Chinese‑manufactured medium‑voltage distribution equipment going global, Rockwill established in‑depth cooperation with DTEK Kyiv Power Grid, Ukraine. Tailored outdoor vacuum recloser solutions were mass‑deployed to address existing weaknesses in local 10 kV distribution networks, comprehensively improving regional power supply reliability and automation to build a flagship distribution grid modernization project in Kyiv.01 Project Background: Core Pain Points of DTEK Kyiv Dis

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Rockwill Ukraine 186 Units 12kV Outdoor Vacuum Recloser Project Success Case

In response to the operational characteristics of Ukraine’s local power grid and targeting harsh high-latitude outdoor working conditions, we rely on core technologies of intelligent reclosing and self-healing to precisely adapt to the complex grid environment with frequent thunderstorms and drastic diurnal temperature variations, steadily promoting the automatic and intelligent upgrade of regional rural power grids and suburban distribution networks.01 Project Overview1.1 Project BackgroundIn 2

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Successful Case of 170 Sets of 11kV Automatic Recloser Project in Kenya

Against the backdrop of quality upgrading for Kenya’s urban and rural power grids, 11kV auto-reclosers deliver reliable performance to suit local climates and grid conditions. It enables rapid fault isolation and efficient operation and maintenance, forming a core safeguard for the upgrading of Kenya’s urban and rural distribution networks.01 Project Overview1.1 Project BackgroundIn May 2023, 170 sets of 11kV Automatic Reclosers (Model: RCW12M) were officially supplied and applied to the medium-

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Documentation Resource Library Vacuum recloser

Restricted.

SEC SPECIFICATIONS FOR SMART MV AUTO-RECLOSER

Others

English

PDF

Public.

27kV automatic recloser technology specification

Technical Data

English

PDF

Restricted.

10 to 38kV auto vacuum break recloser Catalog

Catalogue

English

PDF

Restricted.

15kV/27kV/38kV outdoor auto break vacuum recloser

Brochure

English

PDF

Restricted.

Specification for 33kV Vacuum Automatic Recloser by Kenya Power and Lighting Company Limited (KPLC)

Others

English

PDF

Public.

DEKRA Recloser Test Report

Test Report

English

PDF

Public.

RCW-E38M/1250-20 MV Outdoor Vacuum Recloser

Drawings

English

PDF

FAQ for Vacuum recloser

Does Rockwill offer a cost-effective alternative that is more budget-friendly than the standard RCW+ series?

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.

Does Rockwill Vacuum Recloser really provide a 10-year quality warranty and free replacement?

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.

What are the key differences between Rockwill's RCW vacuum recloser and a ZW32-type vacuum circuit breaker?

The ZW32-type VCB is a basic circuit breaker or demarcation switch without built-in auto-reclosing logic, whereas the RCW vacuum recloser 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.

Can this pole mounted recloser from a China manufacturer be installed on an existing distribution pole?

Yes. The solid-dielectric design is maintenance-friendly and suited to outdoor pole mounting. It supports single or double column mounting, making it suitable for pole mounted recloser projects.

The compact structure and lightweight design also help reduce installation time and on-site labor costs. If you are upgrading an existing overhead line, the RCW series can usually be integrated without major structural changes.

What technical support is available for this automatic circuit recloser from a China manufacturer?

Our team provides technical support for controller setup, protection configuration, communication debugging, and after-sales service. Please contact us with your project details, and we will recommend a suitable recloser solution.

Support includes PC software operation, parameter setting, communication testing, and troubleshooting guidance. This helps customers complete commissioning faster and reduce downtime.

How to select current sensor or current transformer specifications for Rockwill Smart Recloser?

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.

Does Rockwill offer an MV Smart Auto Recloser capable of measuring primary currents as low as 0.1A?

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.

$3600.00

Pricing calculator

PDF

27kV automatic recloser technology specification

PDF

DEKRA Recloser Test Report

PDF

RCW-E38M/1250-20 MV Outdoor Vacuum Recloser

Warranty by

Whole life care manager

Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.