• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


HD11F, HS11F series single throw and double throw protective knife switches

  • HD11F, HS11F series single throw and double throw protective knife switches
  • HD11F, HS11F series single throw and double throw protective knife switches
  • HD11F, HS11F series single throw and double throw protective knife switches

Key attributes

Brand Switchgear parts
Model NO. HD11F, HS11F series single throw and double throw protective knife switches
Rated normal current 100-1000A
number of poles 3P,4P
Series HD11F, HS11F

Product descriptions from the supplier

Description

Applicable scope

The HD11F and HS11F series single throw and double throw protective knife switches are newly developed products derived from HD11 and HS11 by our company.

They are ideal substitutes for HD11 and HS11, greatly improving personal safety protection performance and preventing accidental electric shock.

This series of products is mainly used in low-voltage distribution equipment for infrequent manual connection, disconnection, and isolation of power supply.

Suitable for various low-voltage distribution cabinets, often used as circuit breaking and power isolation components when there is no load. Specific cabinet models: GGD type low-voltage distribution cabinet, PGL type low-voltage distribution panel, XL series power distribution cabinet, MNS type low-voltage withdrawable switchgear, etc.

This product complies with the GB14048.3 IEC60947-3 standard.

Normal working and installation conditions

The ambient air temperature shall not be higher than+40 ℃ and not lower than -5 ℃

The elevation of the installation site shall not exceed 2000m

Humidity: When the maximum temperature is+40 ℃, the relative humidity of the air does not exceed 50%. Higher relative humidity can be allowed at lower temperatures, such as reaching 90% at 20 ℃. Corresponding measures should be taken for occasional condensation caused by temperature changes

The pollution level of the surrounding environment is Level 3

The switch should be installed in a place without significant shaking, shock vibration, and rain or snow invasion. The same installation location should have no explosive hazardous medium, and there should be no gas or dust in the medium that is sufficient to corrode metal and damage insulation.protective knife switches

Main technical parameters

Agreed heating current (A) 100 200 400 600 1000 1500
Rated working current (A) 100 200 400 600 1000 1500
Rated insulation voltage (V) 1000 1000 1000 1000 1000 1000
Rated working voltage (V) 400/690 400/690 400/690 400/690 400/690 400/690
Mechanical life (times) 8000 8000 5000 5000 3000 3000
Short time withstand current for 1 second(KA) 10 10 15 20 25 35
Operating force (N) ≤300 ≤300 ≤400 ≤400 ≤450 ≤450

Know your supplier
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m² Total staff: Highest Annual Export(usD): 300000000
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Low Voltage Electrical Apparatus/Instrument meters/Production equipment/Tester/High Voltage Electrical Apparatus/Electrical fittings/Equipment Parts
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.

Related Products

Related Knowledges

  • Main Transformer Accidents and Light Gas Operation Issues
    1. Accident Record (March 19, 2019)At 16:13 on March 19, 2019, the monitoring background reported a light gas action of No. 3 main transformer. In accordance with the Code for Operation of Power Transformers (DL/T572-2010), operation and maintenance (O&M) personnel inspected the on-site condition of No. 3 main transformer.On-site confirmation: The WBH non-electrical protection panel of No. 3 main transformer reported a Phase B light gas action of the transformer body, and the reset was ineff
    02/05/2026
  • Faults and Handling of Single-phase Grounding in 10kV Distribution Lines
    Characteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in
    01/30/2026
  • Neutral point grounding operation mode for 110kV~220kV power grid transformers
    The arrangement of neutral point grounding operation modes for 110kV~220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi
    01/29/2026
  • Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?
    Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr
    01/29/2026
  • Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?
    Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I
    01/29/2026
  • Understanding Transformer Neutral Grounding
    I. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit
    01/29/2026
Haven't found the right supplier yet? Let matching verified suppliers find you. Get Quotation Now
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
+86
Click to upload file
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.