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Cutout recloser
Cutout Single-Phase Recloser
RYDR cutout-mounted single-phase recloser for branch taps, transformers and boundary points. This single phase recloser restores transient faults automatically, reducing repeated fuse replacement without changing the cutout mounting setup.
36 / 27 / 15.5 kVVoltage classes for branch-line, transformer and boundary protection RFQs.
40 / 100 / 200 ACurrent options with low-current sensing for light branch loads.
IEC 62271-111D820-29/40 factory test record for 27 kV, 40 A.
Specification
Confirm the electrical class first.
The same cutout-mounted body covers three voltage classes. Match insulation level, rated current, reclose settings and protection curve before preparing drawings, labels or export documents.
36 kV specification class
Highest insulation class in the RYDR table.
Use this class when the RFQ calls for 36 kV equipment with 170 kV BIL, 6.3 kA interruption and 40 / 100 / 200 A current options.
Parameter
36 kV class data
Rated voltage
36 kV
Rated frequency
50 / 60 Hz
Rated continuous current
40 A / 100 A / 200 A
Rated symmetrical interrupting current
6.3 kA
Short-time withstand current
16.4 kA max peak
Lightning impulse withstand (BIL)
170 kV
Power-frequency withstand
Dry 70 kV / 1 min, wet 70 kV / 10 sec
Operating sequence
O-t1-CO-t2-CO-t2-CO, t1 0.5s-30s and t2 1s-30s adjustable
Protection and control
ANSI 50/51 overcurrent, ANSI 79 reclosing, IEC and ANSI curve support
Structure
Cutout mounted, solid polymeric insulation, vacuum interrupting medium
Service condition
-20 deg C to +55 deg C, 0%-99% humidity, altitude below 4000m, 130 km/h wind speed
Protection degree / weight
IP66, 13 kg / 12 kg model data
Low-current power sensing: 1 A for 40 A model, 2 A for 100 A / 200 A modelsMechanical endurance: 10000 / 2000 operations
27 kV specification class
Mid-voltage class with D820-29/40 test data.
The D820-29/40 report gives a 27 kV, 40 A test record while the catalog table keeps 100 A and 200 A options visible for RFQ matching.
Parameter
27 kV class data
Rated voltage
27 kV
Rated frequency
50 / 60 Hz
Rated continuous current
40 A / 100 A / 200 A
Rated symmetrical interrupting current
6.3 kA
Short-time withstand current
16.4 kA max peak
Lightning impulse withstand (BIL)
150 kV
Power-frequency withstand
Dry 60 kV / 1 min, wet 60 kV / 10 sec
Operating sequence
O-t1-CO-t2-CO-t2-CO, t1 0.5s-30s and t2 1s-30s adjustable
Protection and control
ANSI 50/51 overcurrent, ANSI 79 reclosing, IEC and ANSI curve support
Structure
Cutout mounted, solid polymeric insulation, vacuum interrupting medium
Service condition
-20 deg C to +55 deg C, 0%-99% humidity, altitude below 4000m, 130 km/h wind speed
Protection degree / weight
IP66, 13 kg / 12 kg model data
Low-current power sensing: 1 A for 40 A model, 2 A for 100 A / 200 A modelsD820-29/40 factory test: 27 kV, 40 A
15.5 kV specification class
Lower-voltage option for compact cutout-mounted protection.
Use this class when the project needs single-phase reclosing, hot-stick service and visual isolation without specifying a full feeder recloser package.
Parameter
15.5 kV class data
Rated voltage
15.5 kV
Rated frequency
50 / 60 Hz
Rated continuous current
40 A / 100 A / 200 A
Rated symmetrical interrupting current
6.3 kA
Short-time withstand current
16.4 kA max peak
Lightning impulse withstand (BIL)
110 kV
Power-frequency withstand
Dry 50 kV / 1 min, wet 50 kV / 10 sec
Operating sequence
O-t1-CO-t2-CO-t2-CO, t1 0.5s-30s and t2 1s-30s adjustable
Protection and control
ANSI 50/51 overcurrent, ANSI 79 reclosing, IEC and ANSI curve support
Structure
Cutout mounted, solid polymeric insulation, vacuum interrupting medium
Service condition
-20 deg C to +55 deg C, 0%-99% humidity, altitude below 4000m, 130 km/h wind speed
Protection degree / weight
IP66, 13 kg / 12 kg model data
Low-current power sensing: 1 A for 40 A model, 2 A for 100 A / 200 A modelsHot-stick operation and visual isolation are part of the service story
Structure
Cutout mounting with recloser-level control.
The assembly combines vacuum interruption, magnetic actuation, current sensing, RF communication and hot-stick operation inside a cutout-mounted package for branch-line protection upgrades.
Vacuum interrupterMagnetic mechanismCT / current sensingRF antennaBackup batteryPosition indicator
Cutout-mounted structure
Mounts directly on an existing fuse insulator, so the buyer can evaluate it as a cutout fuse upgrade rather than a full feeder recloser package.
Automatic fault response
ANSI 50/51 and ANSI 79 logic supports trip and reclose behavior, with up to 3 recloses and adjustable reset timing listed in the product data.
Service operation
Hot-stick open and close operation plus pull-down visual isolation support field maintenance after local safety procedures are confirmed.
Software configuration
RF communication, event logs and PC software settings should match the protection curve and remote operation needs before quotation.
Controls
Built for cutout points that need automatic reclosing.
Check the protection setup here: vacuum interruption, ANSI 50/51 trip logic, ANSI 79 reclosing, low-current sensing and local or wireless operation.
Vacuum interruption and magnetic actuation
Vacuum interrupting medium and magnetic mechanism let the device trip and close inside a compact cutout-mounted structure.
ANSI 50/51 and ANSI 79 protection setup
Single-phase overcurrent, reclosing and instant, delayed or time-inverse trips are supported with IEC and ANSI curves.
Low-current power sensing
Operation starts above 1 A for the 40 A model and above 2 A for 100 A / 200 A models, with class 0.5 / 5P sensing and backup battery support.
Wireless configuration and event logs
SingleTool software, RF communication, WiFi operation and event logs help confirm settings before installation and review operation after fault events.
Applications
Use it where fuse replacement is becoming field work.
The best-fit points are branch taps, transformer protection and customer boundary supply where transient faults should not create long outages or repeated site visits.
Overhead branch lines
For single-phase taps where temporary faults should be handled locally without sending crews for every fuse operation.
Transformer protection
For cutout-fuse replacement around distribution transformers, especially where outage duration and O&M visits are recurring concerns.
Project and boundary supply
For customer boundary or project entrance points where testing, packaging, nameplate, controller and document details must be locked before shipment.
Test report
D820-29/40 factory test record.
The D820-29/40 report records dimensions, operating time, CT accuracy, minimum tripping current, time-current checks, insulation tests and IEC 62271-111:2019 qualification language.
D820-29/40, 27 kV, 40 A
The report identifies the tested cutout-mounted recloser designation and rated values.
Nameplate, dimensions and packing pass
Structural inspection, overall dimensions, nameplate information and packaging inspection are listed with PASS results.
Opening and closing measurements
Examples include 7.22 ms opening time, 25.15 ms closing time, 0.57 ms contact bounce and 6.1 V battery voltage.
Insulation and withstand checks
The report includes insulation resistance, partial discharge and power-frequency withstand tests with PASS conclusions.
Remote and reclosing checks
PC software remote open/close, fault reset, ANSI 79 reclosing and protection alarm exit checks are included.
IEC 62271-111:2019
The conclusion states compliance with IEC 62271-111:2019 for 38 kV and below high-voltage AC automatic reclosers.
Packing and test documents
Use the packing and report set to confirm nameplate, factory test record, shipment quantity and export-document details.
Batch project supply
Batch supply is the right context for confirming drawings, labels, controller settings and inspection documents before production release.
FAQ
Answer the questions that decide whether this belongs in the Smart Grid RFQ.
What is a cutout single phase recloser?
A cutout single phase recloser is a single-phase automatic recloser that mounts at a fuse cutout position. It trips on overcurrent faults, recloses after a set interval and keeps a visible isolation gap for field service.
Is this a replacement for a cutout fuse?
It fits cutout-mounted protection points where automatic trip and reclose behavior is needed. For fuse-only protection, compare the Smart Drop-Out Fuse option. Final suitability depends on voltage, current, fault level and utility practice.
Is it the same as a three-phase automatic recloser?
No. This page is for a single-phase cutout-mounted product. For feeder-level three-phase automation, compare the Automatic Vacuum Circuit Recloser.
What should be sent for quotation?
Send voltage class, rated current option, installation photos or drawings, protection setting expectations, communication needs, quantity, destination and required test or inspection documents.
Can it support live-line or hot-stick work?
Product documents show direct mounting on a fuse insulator, live-line installation possibility, hot-stick operation and visual isolation distance. Project procedures still need to follow local utility safety rules.
Quotation rangeUSD 900-6,500 reference range
Indicative FOB equipment range for early budgeting. Final quote depends on rating class, controller package, quantity, destination and utility standard.
Line roleCutout-mounted transformer branch reclosing
Use the line position to confirm whether this page is the right product family.
Review filesEngineering files before approval
Voltage class, current class, cutout arrangement, protection settings and routine test request.
RFQ routeUse the quotation popup
Send drawings, photos, electrical ratings and export requirements through the RFQ form.
Send the line condition for a cleaner single-phase recloser quote.
Include voltage class, current option, branch role, installation photos, curve or reclose settings, communication needs, quantity, labels and required test/export documents. For company background, see About XIYA POWER.