Description

Dimension Drawing

Product Introduction

Product model: PTF /15S

Applicable fuse: 5.2x20mm

Suitable for: PCB installation and welding

Terminals: Tin copper alloy

Base: PBT + GF30. Upper cover: PC

Working voltage: 500V (250V) AC

Rated current: 16A    max:20A

Working temperature: -40℃ to 130℃

Flame Retardant Grade: UL-94V0

Welding temperature: 180℃-200℃ (3 seconds)

Insulation Resistance: > 10 MΩ (500 VDC: 1 min)

Voltage withstand: 1500V (DC)

FAQ for 5×20 16A 500V Fuse Holder

1. Basic Parameters

Q1: What are the core specifications of the 5×20 16A 500V fuse holder?

This fuse holder is specially designed for 5mm×20mm fuses, with a rated current of 16A and rated voltage of 500V AC/DC. The shell is made of UL94 V-0 flame-retardant engineering plastic, and the terminals are made of high-conductivity tin-plated copper alloy. It mostly has IP20 or IP40 protection level, and the operating temperature ranges from -40℃ to +85℃, suitable for overcurrent protection of various high-voltage and high-current circuits.

Q2: What types of fuses are compatible with the 5×20 16A 500V fuse holder?

It is only compatible with glass tube fuses and ceramic tube fuses with a size of 5×20mm. The rated current of the fuse must be ≤16A, and the rated voltage must be ≥500V. It is strictly forbidden to use fuses with non-compliant specifications to avoid failure of overcurrent protection.

2. Application Scenarios

Q1: What equipment is the 5×20 16A 500V fuse holder mainly used for?

It is widely used in industrial power supplies, three-phase industrial control equipment, LED driver power supplies, charging pile modules, household appliances, medical instruments, lighting equipment, communication power supplies and other fields requiring overcurrent protection for 500V high-voltage and 16A high-current circuits, meeting the safety protection needs of various electrical equipment.

Q2: Can this fuse holder be used in circuit environments below 500V?

Yes. With a rated voltage of 500V, it is compatible with low-voltage circuit scenarios below 500V, and its 16A rated current can meet the needs of small-current circuits. It can perform normal overcurrent protection as long as the circuit current does not exceed 16A.

3. Installation and Use

Q1: What are the mainstream installation methods of the 5×20 16A 500V fuse holder?

It is mainly divided into PCB through-hole type (including SMD type and pin type) and panel mount type. The panel mount type is further divided into front mount and rear mount. Some models are equipped with screw fixation or buckle structure, supporting multi-directional installation such as horizontal and vertical, adapting to the internal layout needs of different equipment.

Q2: What precautions should be taken when installing the 5×20 16A 500V fuse holder?

Ensure the fuse specifications match the holder parameters during installation. For welded installation, the soldering temperature shall not exceed 260℃ and the soldering time shall be controlled within 30 seconds to prevent thermal deformation of the holder; Tighten the terminals in place to avoid poor contact; Avoid installation in severe vibration, high temperature, high humidity and strong corrosion environments, and check the contact status regularly.

4. Troubleshooting

Q1: How to solve the problems of poor contact and heating of the fuse holder?

First cut off the power for inspection. Poor contact is mostly caused by oxidation, deformation of the spring or loose terminals. Clean the contacts with fine sandpaper or alcohol, adjust the tightness of the spring, and retighten the terminals; If the holder is deformed or discolored due to overheating, replace it with a new qualified fuse holder immediately, and check whether there is overload or short circuit in the circuit.

Q2: What causes frequent fuse blowing and how to deal with it?

First, there is overload or short circuit fault in the circuit, so the load equipment needs to be checked and the circuit repaired first; Second, the fuse specification is mismatched, such as the current specification is too small, and the compatible fuse with ≤16A needs to be replaced; Third, poor contact of the fuse holder causes local heating, leading to accidental fuse blowing, which can be repaired according to the poor contact problem.

5. Compliance and Selection

Q1: What certifications are required for the 5×20 16A 500V fuse holder?

International common certifications include UL 4248, VDE, IEC 60127-6 and CSA. Domestically, it must comply with CCC and CQC certifications, and meet RoHS and REACH environmental protection directives. When purchasing, confirm that the product has compliant certifications for the target market to ensure safe use and compliance.

Q2: What are the core criteria for selecting a 5×20 fuse holder?

The core criteria are fuse size (5×20mm), rated current ≤16A, rated voltage ≥500V. Secondly, select PCB through-hole or panel mount style according to the equipment installation space, and confirm the flame retardant level, protection level and certification qualifications to match the equipment use environment and market compliance requirements.