Customizable Outdoor Single-phase vacuum recloser for Rural lines-21.9kV

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	Customizable Outdoor Single-phase vacuum recloser for Rural lines-21.9kV
Rated voltage	21.9kV
Rated normal current	1250A
Rated short circuit breaking current	25kA
Power frequency withstand voltage	70kV/min
Rated lightning impulse voltage	170kV
manual closing	No
Series	RCW

Description

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’srecloser controller.

Features

Optional grades available in rated current range.
With optional relay protection and logic for user selection.
With optional communication protocols and I/O ports for users to choose.
PC software for controller testing, setup, programming, updates.

Parameters

Rated maximum voltage	21.9kV
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 (Single-phase Silicone rubber pole (unable the gas))	70kV
Rated lightning impulse voltage (Single-phase Silicone rubber pole (unable the gas))	170kV
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 (Single-phase Silicone rubber pole (unable the gas))	≤1
Opening time	≤20ms (Magnetic actuator)
Closing time	≤30ms (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 (Single-phase Silicone rubber pole (unable the gas))	2-hole NEMA
Lightning arrester	≤6
Mounting type	Single / double column

Outline Drawing of RCW-S21.9M

21.9kV MV outdoor vacuum recloser

Physical Picture of RCW-S21.9M

Environmental requirement

Maximum temperature:	+40℃
Minimum temperature:	-30℃
Monthly average humidity	95%
Humidity:	90%
Above sea level:	2500m or higher
Ambient air not apparently polluted by corrosive and flammable gas, vapor	—

Documentation Resource Library outdoor vacuum recloser

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10 to 38kV auto vacuum break recloser Catalog

Catalogue

English

Consulting

Public.

27kV automatic recloser technology specification

Technical Data

English

PDF

FAQ for outdoor vacuum recloser

Q: Does Rockwill provide OEM/ODM services for local partners and regional manufacturers?

Yes. Rockwill provides a comprehensive OEM/ODM program for the RCW series reclosers. 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.

Q: Does Rockwill really provide a 10-year quality warranty and free replacement?

Yes. Rockwill 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.

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27kV automatic recloser technology specification

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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.