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High Speed 22*58mm Cylindrical Fuse
High Speed 22*58mm Cylindrical Fuse

High Speed 22*58mm Cylindrical Fuse

High Speed 22×58mm Cylindrical Fuse Link (RS17) is a fast-acting semiconductor protection fuse designed for high fault current AC/DC power electronic systems.

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Description

Product Overview

High Speed 22×58mm Cylindrical Fuse Link (RS17) is a fast-acting semiconductor protection fuse designed for high fault current AC/DC power electronic systems.

Technical Specifications

Parameter	Value
Product Model	RS17
Fuse Type	AR class
Size	22 × 58 mm
Rated Voltage	690V AC / 500V DC
Rated Current (In)	10A – 63A
Breaking Capacity	50kA @ 690V AC / 30kA @ 500V DC
Pre-arcing I²t	Available upon request
Total Clearing I²t	Available upon request
Power Dissipation (W)	≤ 9.5W @ 63A
Time-Current Curve	Available datasheet curve
Standards	IEC 60269-4 / UL 248 / CE / RoHS

Key Features

Silver alloy fuse element with controlled geometry for aR-class high fault current interruption.
Quartz sand filled ceramic body with arc quenching and high-energy fault current extinction.
Metal end caps with precision contact surfaces for low-resistance electrical connection.
Reinforced ceramic tube structure with thermal and mechanical stress resistance.
Hermetically sealed fuse body with internal arc quenching medium.
Contact interface with stable electrical pressure under thermal cycling and vibration conditions.

Applications

Power Electronics Systems

IGBT / Thyristor protection systems

Industrial rectifiers

Frequency converters / VFD drives

UPS power supply systems

Renewable Energy Systems

Solar PV inverter string protection

Energy storage systems (BESS DC protection)

Transportation & Electrification

Electric vehicle high-voltage auxiliary protection systems

Industrial Systems

Automation control power protection

Low-voltage distribution semiconductor protection circuits

Standards & Compliance

IEC 60269 international fuse standard

UL certification

CE compliance for European market access

TÜV certification

GB Chinese national standards

ISO 9001 quality management system

Manufacturing Capability

Factory area:	16,000 m² production base in Zhejiang, China
Annual capacity:	20,000,000 fuse units
Employees:	100+ professionals
Automation level:	~65% production automation
Engineering system:	In-house R&D + electrical testing laboratory
Quality control:	100% electrical performance testing per batch

FAQ

Q: Is RS17 suitable for DC applications such as solar PV or BESS?

A: Yes. RS17 supports AC/DC power electronic protection. For DC systems, 500V DC rating applies with 30kA breaking capacity, suitable for PV inverter and BESS protection circuits.

Q: How should I select the correct current rating for semiconductor protection?

A: Selection should consider nominal operating current, semiconductor I²t withstand curve, and system inrush current. Proper coordination ensures fuse I²t remains below device damage threshold.

Q: What is the role of I²t in fuse selection?

A: I²t defines energy let-through during fault conditions. RS17 is designed with controlled I²t to protect IGBT and thyristor devices from thermal and electrical stress.

Q: Why is quartz sand used inside the fuse body?

A: Quartz sand acts as arc quenching medium, absorbing energy and stabilizing arc extinction during high fault current interruption.

Q: What ensures stable performance under vibration and thermal cycling?

A: Stable end cap contact pressure, ceramic mechanical strength, and hermetic sealing ensure consistent electrical performance in dynamic industrial environments.

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