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


Fuseholder RT18-125-2P Fuse Holder Fuse size

  • Fuseholder RT18-125-2P Fuse Holder Fuse size

Key attributes

Brand Switchgear parts
Model NO. Fuseholder RT18-125-2P Fuse Holder Fuse size
number of poles 2P
Series RT18-125

Product descriptions from the supplier

Description

What are the 3 parts of a fuse?

A fuse typically consists of three main parts:

1.Fuse Element: The fuse element is the core component of a fuse. It is a thin wire or strip of a fusible material, usually made of alloys with low melting points, such as copper, silver, or tin.

The fuse element is designed to carry the normal current of the circuit under normal operating conditions. However, when the current exceeds a certain threshold, the fuse element heats up and eventually melts or blows, interrupting the circuit and providing overcurrent protection.

2.Fuse Body: The fuse body is the protective casing or housing that encloses the fuse element. It provides mechanical support and insulation for the fuse element.

The fuse body is typically made of a non-conductive material, such as ceramic, glass, or plastic, to prevent electrical contact with the fuse element.

The fuse body also serves as a platform for mounting and securing the fuse within the fuse holder or fuse block.Fuseholder

3.End Caps or Terminals: The end caps or terminals are the connection points of the fuse. They are typically metallic and are attached to the ends of the fuse element.

The end caps or terminals provide electrical contact and allow the fuse to be inserted into the fuse holder or fuse block, creating a secure connection between the fuse and the circuit.

The end caps or terminals may have different designs or configurations depending on the type of fuse and the specific application.

These three parts work together to provide overcurrent protection in an electrical circuit. The fuse element carries the current, the fuse body protects and insulates the fuse element, and the end caps or terminals provide the electrical connection between the fuse and the circuit.

When the current exceeds the fuse’s rated capacity, the fuse element melts or blows, breaking the circuit and preventing damage to the wiring and equipment.Fuseholder

Low voltage cabinets suitable for various industrial and commercial scenarios, including GGD low voltage fixed switchgear, XL-21 low voltage power cabinet, Schneider TeSys island control cabinet, Chint PZ30 series lighting distribution box, etc

Item No.DN56122

Product model RT18-125
Description Fuse switch disconnector ,standard structure without null line
Pole 2P
Mounting method DIN rail installation
Wiring method 4-50mm2
Fuse size 22*58
Rated operational current le 125A(500VAC)/100A(690VAC)
Rated operational voltage Ue 500VAC/690VAC
Rated insulation voltage 800V
Rated impulse withstangd current lpk 6KV
Breaking capacity with fuse 100KA(500VAC)/50KA(690VAC)
Utilization category with fuse gG
LED Indicator voltage 110-690VAC/DC
IP IP20
Reference standard IEC 60269-2  GB/T 13539.
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

  • 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
  • What’s the Difference Between Rectifier Transformers and Power Transformers?
    What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ
    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.