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Compact Substation Smart Hv/Mv Electrical Fn8-40.5kv Sf6 Gas Insulated Circuit Breaker for Prefabricated Substation
Electrical Engineering

Compact Substation Smart Hv/Mv Electrical Fn8-40. | RFQ Sourcing Details

Electrical Engineering · Quote on request

This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.

Quote on request

Product specs

CategorySwitchgear
Unitset
10Rated Sequence Of Operation-O-0.3s-CO-180s-CO
11Rated Single Phase-to-Ground Fault Breaking Current kA
12Rated Cable Charging Current Switching Test A 50
13Rated Breaking Current of Single/Back-to-Back Capacitor Bank A ≥800 / 800
14Mechanical Endurance Times 10000
15Short-Circuit Current Breaking Times Times 20
CategoryElectrical Engineering
AvailabilityInquiry required
Updated2026-05-05

Buyer's Digest

Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Electrical Engineering. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.

Original product description

Home Electrical & Electronics Breaker & Protector Circuit Breaker High Voltage Circuit Breaker Compact Substation Smart Hv/Mv Electrical Fn8-40.5kv Sf6 Gas Insulated Circuit Breaker for Prefabricated Substation US$3,000.00-5,000.00 1 Piece

Compact | Applications and Buyer Notes

Compact is organized as a sourcing-ready Electrical Engineering reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time qu

Applications

  • Initial shortlist building for related product or supplier options.
  • Specification and application fit review before bulk purchasing.
  • Category, keyword and detail-page comparison before sending an RFQ.

Key specifications

Category
SwitchgearBased on visible page data; confirm exact value in the RFQ.
Unit
setBased on visible page data; confirm exact value in the RFQ.
10
Rated Sequence Of Operation-O-0.3s-CO-180s-COBased on visible page data; confirm exact value in the RFQ.
11
Rated Single Phase-to-Ground Fault Breaking Current kABased on visible page data; confirm exact value in the RFQ.
12
Rated Cable Charging Current Switching Test A 50Based on visible page data; confirm exact value in the RFQ.
13
Rated Breaking Current of Single/Back-to-Back Capacitor Bank A ≥800 / 800Based on visible page data; confirm exact value in the RFQ.
14
Mechanical Endurance Times 10000Based on visible page data; confirm exact value in the RFQ.
15
Short-Circuit Current Breaking Times Times 20Based on visible page data; confirm exact value in the RFQ.

Buyer tips

  • State quantity range and split-delivery needs before price comparison.
  • Add certification, material or inspection standards when they affect acceptance.
  • For time-sensitive projects, include target arrival date and destination.
  • For special applications, describe operating condition, installation environment and duty cycle.

FAQ

What should buyers confirm first?

Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.

Can buyers inquire when specs are incomplete?

Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.

How should this listing be evaluated?

Check title, category, specifications and related keywords against the actual sourcing requirement.

Source mix: ugc

RFQ Preparation Notes

Compact Substation Smart Hv/Mv Electrical Fn8-40.5kv Sf6 Gas Insulated Circuit Breaker for Prefabricated Substation can be used as an RFQ preparation reference after reviewing the original product description, images, and specification table.

Use the inquiry form to add application context, quantity, destination, delivery timing, required standards, and customization constraints. Price status: Quote on request; quantity reference: Quantity by inquiry; lead time: Lead time by inquiry.

Key specifications

CategorySwitchgear
Unitset
10Rated Sequence Of Operation-O-0.3s-CO-180s-CO
11Rated Single Phase-to-Ground Fault Breaking Current kA
12Rated Cable Charging Current Switching Test A 50
13Rated Breaking Current of Single/Back-to-Back Capacitor Bank A ≥800 / 800
14Mechanical Endurance Times 10000
15Short-Circuit Current Breaking Times Times 20
161min Power Frequency Withstand Voltage of Secondary Circuit V 2000
17Rated Operating Voltage Closing line circle V DC110/220, AC220
18Rated Voltage of Energy Storage Motor V DC110/220, AC220
19Rated Power of Energy Storage Motor W 250
20Energy Storage Time (At Rated Voltage) s ≤10
21Rated SF6 Gas Pressure (Gauge Pressure at 20℃) MPa 0.35+0.02/0
22Alarm Pressure MPa 0.30±0.01
23Minimum Functional Pressure (Lockout Pressure) MPa 0.28±0.01
24Annual Leakage Rate % ≤0.5
26Moving
28Opening Time ms 33~130
29Closing Time ms 65~95
30Three-Phase Asynchronism of Closing & Opening ms ≤2
31Average Opening Speed (Within 10ms after Half Stroke) m/s 2.2~2.8
32Average Closing Speed (Within 10ms after Half Stroke) m/s ≥1.5
33Main Circuit Resistance μΩ ≤32 (Trolley Type) ≤25 (Fixed Type)
ApplicationElectrical and power distribution
Arc-extinguishing MediumSF6
Breaking CapacityHigh Voltage Circuit Breakers
Broken118
Capacity180.000kg
CategorySwitchgear
CertificationISO 9001:2015
Current level1250A
CustomizationAvailable
Feature Highlightsdigital
Frequency50Hz
FunctionCircuit-Breaker Failure Protection
InstallationFixed
Lightning Impulse Withstand Voltage (Peak)Alternating, relatively low 185
Matched Termscircuit breaker, substation, breaker
Model NO.FN8-40.5
No.Item Unit Technical Parameters
Opening line circleDC110/220, AC220
OperationManual Type
OriginChina
Poles Number2
Product NameIndoor High Voltage AC Sf6 Circuit Breaker
Product TitleCompact Substation Smart Hv/Mv Electrical Fn8-40.5kv Sf6 Gas Insulated Circuit Breaker for Prefabricated Substation
Rated Current1250A/2500A/3150A
Rated Voltage40.5kv
Refund policyClaim a refund if your order doesn't ship, is missing, or arrives with product issues.
Shipping Cost.
SpecificationCustomized
SpeedHigh-Speed Circuit Breaker
StructureACB
TrademarkJinhuilong
Transport PackageWooden Box
TypeCircuit Breaker
US$3,000.00-5,000.001 Piece ( )
Voltage40.5kv

Product sourcing keywords

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