Customization outdoor MV vacuum Auto Circuit Recloser/reclosure-15kV to 20kV

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	Customization outdoor MV vacuum Auto Circuit Recloser/reclosure-15kV to 20kV
Rated voltage	15kV
Rated normal current	1250A
Rated short circuit breaking current	25kA
Power frequency withstand voltage	45kV/min
Rated lightning impulse voltage	120kV
manual closing	No
Series	RCW

Description

Description：

Pioneer of China’s recloser track and the first specialized source manufacturer — that’s who we are after decades of focused efforts. We’ve strengthened our foundation via tech breakthroughs, guided the industry through standard-setting, and built a fully independent full-chain system from core R&D to mass production and delivery.

The RCW series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for allvoltage 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.

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
Solving the dual challenges of tropical heat and humidity
Resistant to salt fog corrosion, suitable for offshore / coastal power applications
Fully sealed design, preventing sand and dust from affecting
Operable in wide temperature range: -30°C to +40°C, handling extreme temperature variations

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		400A
Rated frequency		50Hz
Rated short circuit breaking current		12.5KA
Rated peak value withstand current		31.5KA
Rated 1min power frequencywithstand voltage（Three-phase Epoxy resin pole）		45KV
Rated lightning impulse voltage（Three-phase Epoxy resin pole）		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 Epoxy resin pole）		≤6
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 Epoxy resin pole）		4-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(*)
		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 use		Rated currents, System phase current.
With optional functions for use		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
With optional reclosing interval for user pre-program		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℃
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

Product show：

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Documentation Resource Library Auto Circuit Recloser

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SEC SPECIFICATIONS FOR SMART MV AUTO-RECLOSER

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BREB 11kV Automatic Circuit Reclose Specification Submission Sheet

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11kV Automatic Circuit Reclose Standard for Class III in Bangladesh

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15 kV Pole Mount Auto Recloser Technical Specifications for Guyana Power & Light Incorporated (GPL)

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15kV Switching Station requirements in Ethiopia

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

Brochure

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10 to 38kV auto vacuum break recloser Catalog

Catalogue

English

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15kV automatic recloser technology specification

Technical Data

English

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Certifications Auto Circuit Recloser

FAQ for Auto Circuit 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.

Q: 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.

Related Q&A for Auto Circuit Recloser

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