Single-phase Circuit Recloser (Reclosure ) China Factory

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	Single-phase Circuit Recloser (Reclosure ) China Factory
Rated voltage	21.9kV
Rated normal current	630A
Rated short circuit breaking current	16kA
Power frequency withstand voltage	70kV/min
Rated lightning impulse voltage	170kV
manual closing	No
Series	RCW

Description

As a Chinese supplier of single-phase vacuum reclosers, we have accumulated decades of R&D expertise, taken the lead in formulating 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 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.

smart distribution recloser China supplier factory view

Key Features & Technical Highlights

Intelligent Control System:
Equipped with a flagship smart controller, this Smart Recloser/Reclosure OEM/ODM device offers comprehensive protection logic, including instantaneous/timing over-current, earth fault (EF/SEF), and cold load pickup. It supports standard communication protocols like DNP3.0 and IEC 60870-5-101/104 for seamless SCADA integration.
Robust Outdoor Construction:
Designed for harsh environments, this Outdoor Recloser/Reclosure Customized features a tank made from #304 stainless steel with an IP54 (up to IP67) protection rating. It operates reliably in temperatures ranging from -45°C to +85°C and high humidity conditions.
Flexible Installation:
This Pole Mounted Recloser/Reclosure For Sale supports both single and double column mounting types, adapting easily to various utility pole structures. It serves as a versatile Circuit Recloser/Reclosure For Sale for both rural and urban distribution automation.

Recloser Controller Panel Schematic

This panel serves as the dedicated operator interface for the recloser controller. It integrates status indicators, function keys, fault indicators and communication interfaces to realize equipment status monitoring, parameter configuration, local operation and fault information review.

Outdoor Single-phase vacuum recloser Recloser Controller Panel Schematic

Product Specifications

Item	Unit	data
Rated maximum voltage	kV	8.6	15.6	21.9
Rated maximum current	A	400/630/800/1250
Rated frequency	Hz	50/60
Rated short circuit breaking current	kA	12.5/16/20/25*
Rated peak value withstand current	kA	31.5/40/50/63*
Rated 1min power frequency withstand voltage (Dry/Wet)	kV	E: 28/36 F: 36/50 G: 45/55	E: 60 F: 65 G: 70	E: 70 F: 85 G: 90
Rated lightning impulse voltage	kV	E: 95 F: 110 G: 120	E: 125 F: 140 G: 150	E: 170 F: 185 G: 195
Operation sequence	s	C-0.5-CO-2-CO-5-CO
Mechanical life	n.	30000
Power supply and operating voltage	V	110/220, Customized
Ratio of current transformer	A	400/1, Customized
Number of voltage sensors	n	E: ≤1F: ≤2M: ≤2
Opening time	ms	M: ≤20
Closing time	ms	M: ≤30
Minimum creepage distance	mm/kV	31, Level 4
Potential transformer	V	110/220, Customized
Cable length	m	6, 8, 12, Customized
Cable clamp	—	E: 2-hole NEMA F: 4-hole NEMA
Lightning arrester	n	≤2
Mounting type	—	Single / double column
3-phase combination	—	provide

We offer flexible customization services supporting various Rated maximum voltage levels (ranging from 8.6kV to 21.9kV), ensuring precise compatibility with diverse global power grid systems and optimal performance under specific voltage conditions.

Controller

Smart recloser controllers: flagship and economical options

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(*).
Over-voltage protection/Under voltage protection.
Programable protection relay curves total 10 nos ANSI/IEC curves.
Cold load pickup protection TCC +Hot line tag
Earth protection EF/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 60870-5-101 communication protocol support.
IEC 60870-5-104 communication protocol support(*).

The recloser can communicate through GPRS(Or GSM) modem with English or Specified language(*).

With optional functions for user.

Rated currents, System phase current.
Rated voltages, System phase voltage& secondary low voltage power supply voltage. Frequency, power(kWh), reactive power(kV arh), 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.

Controller features

Time-Overcurrent Curves

The following information describes the curve timing for the curve and time dial settings made for the time-overcurrent elements. The time-overcurrent relay curves in conform to IEEE C37.112-1996 IEEE Standard Inverse-Time Characteristic Equations for Overcurrent Relays.

Time-overcurrent relay curves conforming to IEC and ANSI C37.112 standards

Outline Drawing

Environmental requirement

Maximum temperature:	+40℃
Minimum temperature:	-30℃
Monthly average humidity	95%
Humidity:	90%
Above sea level:	2500m or higher

Solutions for Circuit Recloser China Factory

Indonesia's Smart Recloser System: Integrated Solution for Volcanic Ash and Coastal Salt Corrosion Mitigation

Project BackgroundIndonesia is situated within the Pacific Ring of Fire, experiencing frequent natural disasters that pose multiple threats to its power system:Geographical Risks: Volcanic Ash: The country has 127 active volcanoes. Eruptions produce Volcanic Ash containing sulfides and dust, accelerating corrosion of electrical equipment and causing insulator flashovers. Coastal High Salt Fog & Corrosion: With an 81,000 km coastline, salt fog permeation leads to severe Coastal Salt Corrosion

Rockwill
Vietnam Flood-Resilient Recloser Solution: Solving Immersion Protection in Monsoon Zones

Project BackgroundVietnam's tropical monsoon climate causes annual floods lasting 4-5 months, severely damaging power infrastructure. The 2020 central Vietnam floods paralyzed grids, delaying rescue operations. Traditional circuit breakers fail under water immersion, and manual restoration is inefficient. Although flood control infrastructure has improved, rapid power recovery remains a critical gap. Recloser devices, if unprotected, are highly vulnerable to flood-induced short circuits. Enhanci

Rockwill

Reference Projects for Circuit Recloser China Factory

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

Rockwill
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-

Rockwill

Documentation Resource Library Circuit Recloser China Factory

Restricted.

RCW MV outdoor vacuum recloser installation manual

Operating Instruction

English

PDF

Public.

Rockwill Electric Group Profile

Brochure

English

PDF

Restricted.

RCW MV Triple-single Recloser catalog

Catalogue

English

PDF

Public.

RCW MV Triple-single recloser Brochure

Brochure

English

PDF

Public.

33kV 3-Pole Outdoor SCADA-Ready Automatic Recloser - Technical Specification

Technical Specifications

English

PDF

Restricted.

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

Brochure

English

PDF

Restricted.

10 to 38kV auto vacuum break recloser Catalog

Catalogue

English

PDF

FAQ for Circuit Recloser China Factory

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.

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.

What differentiates Rockwill's Outdoor Single-phase vacuum recloser from a standard ZW32-type vacuum circuit breaker?

While the ZW32 is a basic switch requiring an external controller, the RCW Outdoor Single-phase vacuum recloser is a fully integrated smart grid solution featuring built-in protection, sensors, and communication.

Furthermore, it strictly complies with IEC/ANSI standards and uses premium insulation tailored for international distribution automation projects.

What’s the difference in closing/opening monitoring for our Outdoor Single-phase Vacuum Recloser controller vs ordinary distribution controllers?

Ordinary distribution controllers mostly only collect position signals from auxiliary switches. This controller, matched for Outdoor Single-phase vacuum recloser, is natively integrated with on-line monitoring of closing and opening. It can monitor the operating status of closing and opening in real time and grasp the operation condition of the recloser body.

Does the controller for Outdoor Single-phase vacuum recloser come with an operation panel? What are its advantages compared with general controllers?

This controller for Outdoor Single-phase vacuum recloser integrates a dedicated local operation panel. On-site parameter configuration, local operation and fault information review can be realized directly. Many general controllers do not have built-in panels and need to connect an external third-party HMI for local human-machine interaction.

$5000.00

Pricing calculator

Model

Rockwill Electric Group Profile

PDF

RCW MV Triple-single recloser Brochure

PDF

33kV 3-Pole Outdoor SCADA-Ready Automatic Recloser - Technical Specification

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.