Hot Selling Customizable Low Voltage Rt18 Fuse for Electrical Circuit

Product Description

Product Description

Model:RT18 (32A-125A) is a low-voltage protective fuse link designed for AC 50/60Hz power systems (rated voltage 500/690V). It safeguards power distribution devices, industrial circuits, and electrical equipment from overloads and short circuits. It features a gG full-range breaking capacity (up to 100kA), a cylindrical cap structure, and an optional fuse-blow indicator (light-up signal for easy fault detection). Its DIN rail mounting and buckle design enable quick, convenient replacement. This product has passed rigorous low-voltage apparatus type tests, complying with GB/T 13539.2 and IEC 60269-2 standards, and delivers reliable protection for low-voltage power networks.

Company Description

1.Core Protection: Low-voltage protective fuse link (RT18 series) safeguarding industrial/commercial/home electrical circuits, power distribution devices, and equipment from overloads and short circuits, via fast circuit interruption when current exceeds rated value.

2.Key Features: Operates as a cylindrical cap-type low-voltage fuse (rated voltage 500/690V, rated current up to 63A), featuring an optional fuse-blow indicator (neon lamp signal) for easy fault detection. Complies with GB13539 and IEC 60269 standards, with a breaking capacity up to 100kA for stable, reliable performance.

3.Application Adaptability: Optimized for indoor AC 50/60Hz power systems, widely used in 380/500V low-voltage networks for circuit, transformer, and line protection.

4.System Compatibility: Designed as a DIN rail-mounted fuse (with buckle structure) for quick, convenient replacement, delivering reliable protection for low-voltage electrical systems.

Protection against overcurrents, short circuits, and equipment damage

Our RT18 (32A-63A) Cylindrical Cap Low-Voltage Fuse are specialized low-voltage protective components designed for the protection of industrial/commercial/home circuits, power distribution devices, and electrical equipment. The fast response (when current exceeds rated value) ensures our products provide safeguarding against faults, delivering quick interruption to prevent equipment damage — with reliable suitability for indoor AC 50/60Hz power systems (rated voltage 380/500/690V).

RT18 Cylindrical Cap Type Low Voltage Fuse | Product Highlights

Core Protection
Overcurrent & Short-Circuit Protection:Shields industrial/commercial/home circuits, power distribution devices, and electrical equipment from overloads and short circuits, preventing damage via fast interruption when current exceeds the rated value (breaking capacity up to 25kA for RT18-32).
Application Flexibility
System Compatibility: Works as a DIN rail-mounted component (with buckle design for quick replacement) to deliver full-range protection for indoor AC 50/60Hz power systems (rated voltage 380/500/690V).
Scene Adaptability: A top choice for circuit protection in 380/500V low-voltage networks, widely used in industrial, commercial, and residential electrical systems.
Construction & Durability

Cylindrical Cap Design:Features a stable enclosed structure (filled material type) and reliable performance, with an optional neon lamp signal device for easy fault detection.
Standard Compliance: Passed low-voltage apparatus type tests, complying with GB13539 and IEC 60269 standards for consistent, reliable operation.

Model	Other names	Rated voltage (V)	Rated current(A)	Size(mm)
RT18-32	RO15(RS15)	380/500	2-32	38	10.3
RT18-63	RO16(RS16)	380/600	2-63	51	14.3
RT18-125	RO17(RS17)	380/660	10-125	58	22.2

Trustworthy Partnership

Customization That Fits

Seamless Compatibility

The customer highly commended our sense of responsibility, noting that in an industry where many vendors disengage after payment, our commitment to long-term accountability stands out. This reliability has built strong trust and confidence in our future collaboration.

The customer expressed full satisfaction with the fuses, emphasizing that the custom logo and packaging perfectly matched their requirements. This demonstrates our precision in delivering tailored solutions and has secured the customer's commitment to ongoing cooperation.

The customer praised our secure packaging and reported that our fuses seamlessly replaced their old brand without any equipment adjustments. The products have run flawlessly since installation, leading the customer to immediately place a follow-up order for 500 units—a testament to our product's compatibility and quality.
 

Streamlined & Impactful Version 
"With extensive export experience, we optimize container loading to maximize your value and ensure smooth logistics. As a fully integrated factory, we produce core components in-house using only 100% virgin materials—sourced directly from official state units—guaranteeing superior quality and safety without any recycled materials."

Get Project Support Easily

At SR FUSE, we make complexity simple! Follow these 3 steps to get started now!

1.Tell Us What You Need: Describe your needs as specifically as possible. Please provide drawings, reference pictures, and share your ideas. 2.Receive Solutions and Quotation: We will create the best solution based on your requirements and drawings and receive specific quotation within 24 hours. 3.Approval for Mass Production: We will begin production once we receive your approval and deposit, and we will arrange the shipment thereafter.

1-Year Warranty

7/24 Professional Team Support

Our XRNT high-voltage fuse offers fast current-limiting protection and reliable arc extinction, with a rated voltage range of 3.6kV–40.5kV. It complies with GB/T 15166.4 standards, fits XRNT holders, and comes with a 1-year warranty. Custom solutions available.

Our XRNT high-voltage fuse delivers fast current-limiting protection and reliable arc extinction, with a rated voltage of 3.6kV–40.5kV and compliance with GB/T 15166.4 standards. Our 7/24 technical team is on standby to provide immediate after-sales support and solutions for your high-voltage equipment needs.

FAQ

Q:What certification do you have?
A:ISO9001, CE Approved, CNAS L0223, CNAS L0107, CNAS L0116 , SGS Certified

Q:Have you ever participated in any exhibitions, and what are your future plans?
A:We have participated in domestic exhibitions including the Canton Fair, and we plan to expand into international exhibitions, with participation in an Australian trade show scheduled for 2026. 

Q:How about your after-sales service?
A:Our services are continuously. After an order is completed, we pay even closer attention to our customers. At every stage, our sales team will keep you updated on logistics information. If you have any questions after receiving the goods, including installation guidance, we will assist you promptly.

Q:We only need some products inner parts/components, could you sell that?
A:Yes, we can

Q:Our products and packaging can be printed customer's brand?
A:Yes, just need customer's certification of distribution

Q:How long is our delivery time?
A:It usually takes 30 days, but the exact timeframe depends on the product and order quantity. We will need to discuss with the manufacturing department.

Q:Compared to peers, what are our advantages?
A:We are a manufacturer, with high quality products, we have 6 production line, our price is more competitive, we can quickly according to the requirements of the customers to make samples and improvements

Q:What 's the major products of your company?
A:High-voltage fuse, low-voltage fuse, medium-voltage fuse, drop-out fuse, lightning arrester & insulator

Q:Are you factory?Where is your factory?
A:Yes.Our company address is No. 218, Wei 15th Road, Yueqing Economic Development Zone, Yueqing, Wenzhou, Zhejiang ,China.

Q:How do you ensure that the product quality meets the standards?
A: Each product export will go through Visual & Dimensional Inspection, Temperature Rise Test, Mechanical Operation Test, Sealing Test, Vibration Test, Shock Test and striker Test. 

Q:What kind of support will you offer?
A: The sales engineers you engage with are experienced and certified in English proficiency. We have several English-speaking team members and foreign colleagues, along with a dedicated group of over 50 experienced engineers who ensure smooth communication and provide viable design solutions.