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On Pole Outdoor Automatic Circuit Recloser-33kV

  • On Pole Outdoor Automatic Circuit Recloser-33kV

Key attributes

Brand ROCKWILL
Series RCW
Rated voltage 33kV
Standard IEC62271-111
Rated frequency 50Hz
Description
Our outdoor automatic current recloser is a high‑performance pole‑mounted vacuum circuit breaker tailored for 33kV incoming line applications. It accurately detects line‑to‑ground, line‑to‑line and three‑phase fault currents and cuts off all three phases of distribution circuits at the same time. Matched with a dedicated controller, it supports power distribution automation. Current values, time parameters and operation settings can be fully programmed via the built‑in keyboard and display of the recloser controller.
Manufactured with advanced processing and computer‑aided design technologies, the breaker integrates advantages of modern spring and permanent magnet operating mechanisms. Developed under the concept of high reliability and low maintenance, it delivers stable performance for power system operation.
As outdoor pole‑mounted equipment, it withstands complex weather and environmental conditions. It switches normal and fault currents for overhead lines and substations, widely used for protection and control of distribution networks in substations, industrial and mining facilities. It is highly suitable for rural power grids, frequent‑operation scenarios, as well as urban‑rural power grid upgrading projects.

Features

  • Long electromechanical life, virtually maintenance free.
  • Adopts compact and robust outdoor application design.
  • Verified vacuum circuit breaker for switching function.
  • Proved applicability under various climatic conditions.
  • Modular structure is adopted, easy to maintain.
  • Equipped with reliable anti-misoperation mechanical interlocking device
  • can withstand electrodynamic stress during operation.
  • Operating mechanism encapsulated in the cabinet for reliability.

Schematic diagram

Outdoor Pole Mounted Automatic Circuit Recloser with Controller Schematic diagram

Normal Service Conditions

Ambient air temperature — upper limit +40 °C
Ambient air temperature — 24 h average +35 °C
Ambient air temperature — lower limit –25 °C
Altitude above sea level ≤ 1 000 m
Relative humidity — 24 h average ≤ 95% (at +40 °C)
Relative humidity — monthly average ≤ 90%
Water vapour pressure — 24 h average ≤ 2.2 kPa
Water vapour pressure — monthly average ≤ 1.8 kPa
Solar radiation ≤ 1 000 W/m²
Wind speed (outdoor) ≤ 34 m/s (mild)
Pollution degree (outdoor pole-mounted) Class III

Application Scenarios

  • Urban and rural power grid reconstruction and overhead distribution line protection
  • Industrial & mining enterprises, industrial parks and large‑scale manufacturing zones
  • New‑energy power generation supporting projects including wind farms and solar power stations
  • Public infrastructure such as highways, railways and municipal power supply networks
  • Substation distribution system control and frequent‑operation power supply occasions

Solutions - Automatic Circuit Recloser

  • High-Load Intelligent Recloser Solution for Nigeria's Industrial Zones
    Reclosers: Powering Nigeria’s Industrial Resurgence with Smart Grid ResilienceNigeria’s "re-industrialization" drive—spanning automotive manufacturing, mineral processing, and energy-intensive sectors—faces crippling grid constraints. Industrial zones grapple with three critical challenges: Chronic Power InstabilityAging infrastructure triggers frequent faults (e.g., short circuits in Lagos factories, overloads in Delta State gas hubs). Traditional fuses and circuit breakers respond sluggishly,

Case Studies - Automatic Circuit Recloser

  • 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-
  • 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

Related Blogs - Automatic Circuit Recloser

  • Industry Analysis: Medium-Voltage Automatic Reclosers — The 0.5A–16,000A Full-Range Protection Capability That Redefines
    1. What Makes a Recloser Truly World-Class? Starting from the "0.5A–16,000A" Range Ratio The global pole-mounted automatic recloser market is undergoing a paradigm shift from "protective switches" to "intelligent distribution nodes." With distributed energy resources connecting to distribution grids at scale, bidirectional power flow and high-impedance fault detection demands are becoming increasingly prominent. Grid operators now impose stringent requirements on a recloser's ability to precisel
  • Rockwill RCW Series Automatic Circuit Reclosers: World-Class Technology & Global Track Record
    The Rockwill RCW Series Automatic Circuit Reclosers are intelligent Automatic Circuit Reclosers (ACR) fully compliant with both IEC 62271-111 and ANSI/IEEE C37.60 international standards, covering the full voltage range from 11kV to 38kV for 50/60Hz power systems. As a pioneer in China's recloser sector and a leading medium-to-high voltage power equipment original manufacturer, Rockwill serves over 100 countries worldwide, offering a Chinese-origin solution that competes head-to-head with intern

Documentation Resource Library Automatic Circuit Recloser

Restricted
33kV Automatic Circuit Reclose Standard for Class III in Bangladesh 33kV Automatic Circuit Reclose Standard for Class III in Bangladesh
Others
English
PDF
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BREB 33kV Automatic Circuit Reclose Specification Submission Sheet BREB 33kV Automatic Circuit Reclose Specification Submission Sheet
Others
English
PDF
Restricted
Specification for 33kV Vacuum Automatic Recloser by Kenya Power and Lighting Company Limited (KPLC) Specification for 33kV Vacuum Automatic Recloser by Kenya Power and Lighting Company Limited (KPLC)
Others
English
PDF
Public.
33kV 3-pole outdoor automatic circuit recloser for mv overhead line system 33kV 3-pole outdoor automatic circuit recloser for mv overhead line system
Technical Specifications
English
Public.
Rockwill Electric Group Profile Rockwill Electric Group Profile
Brochure
English
Restricted
RCW MV outdoor vacuum recloser installation manual RCW MV outdoor vacuum recloser installation manual
Operating Instruction
English
PDF

Frequently asked questions

The RCW series outdoor vacuum Auto Circuit recloser is designed for overhead distribution lines and substation applications across all voltage classes from 11kV to 38kV. It is specifically engineered to improve grid reliability by providing automated control, protection, and fault detection for medium-voltage power systems.

Q:How does the outdoor vacuum Auto Circuit recloser enhance power grid stability?

A:This outdoor vacuum Auto Circuit recloser features an intelligent automatic reclosing function that performs multiple cycles to clear transient faults. By automatically restoring power after temporary issues, it significantly reduces outage durations and minimizes the need for manual intervention by utility teams.

Q:What makes this outdoor vacuum Auto Circuit recloser suitable for harsh environments?

A:Built as a rugged, outdoor-ready solution, the outdoor vacuum Auto Circuit recloser features an IP66-rated enclosure and a specialized corrosion-resistant coating. This ensures the unit operates reliably in extreme temperatures ranging from -30°C to +40°C, high humidity, and even salt-fog coastal conditions.

Q:Does the manufacturer offer customization for the outdoor vacuum Auto Circuit recloser?

A:Yes. As a leading source manufacturer, we provide full-chain R&D and production for the outdoor vacuum Auto Circuit recloser. We can customize parameters—including specific voltage ratings like 21.9kV or 25.8kV, communication protocols, and protection logic—to ensure the equipment matches your regional grid standards and project needs.

Yes. Rockwill provides a comprehensive OEM/ODM program for the RCW vacuum recloser. However, we are very selective in our partner selection — we specifically seek manufacturers and local partners with strong technical capabilities, solid engineering background, and local service capacity. Our goal is to partner with entities that can not only distribute but also provide local technical support to promote our advanced technology.

This 35kV outdoor high‑voltage automatic recloser is applicable to 3‑phase AC 50Hz power systems. It can reliably switch load current, overload current and short‑circuit current.
Equipped with an intelligent controller and electronic PT power supply, it supports multi‑times automatic reclosing and provides three‑stage composite protection including overcurrent delay, inrush current delay and fast short‑circuit breaking, effectively ensuring safe and stable operation of distribution networks.

Two types: magnetic actuator (M/G, mechanical life 30000 times) and spring mechanism (N, mechanical life 10000 times). Magnetic type can add manual closing function with code “C”.

It integrates control, overcurrent protection, measurement, communication, fault detection and online opening‑closing monitoring, matched with dedicated recloser controller.

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Medium and High Voltage Switchgear/Power and Distribution Transformers/Instrument Transformers and Sensors/Lightning Protection and Electrical Insulation/Substations and E-Houses/Electrical Panel and Controlgear
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