RO16 14x51mm Ceramic Fuse Link | RT14 RT19 RT18-63 gL 500V Fuse
RO16 14x51mm Ceramic Fuse Link | RT14 RT19 RT18-63 gL 500V Fuse
The RO16 series gL ceramic cartridge fuse link is standard 14×51mm size, perfectly matched with RT18-63, RT14 and RT19 DIN rail fuse holders. Rated 500V AC with 50kA high breaking capacity, it covers full current range from 2A to 63A for general-purpose circuit overload and short-circuit protection. Adopted fireproof ceramic tube and silver-plated copper end caps, compliant with IEC269 & VDE0636 standards, widely used in industrial distribution boxes, machine tools, HVAC and automation equipment. One box contains 20 pcs for bulk wholesale.
The RO16 series gL ceramic cartridge fuse link is standard 14×51mm size, perfectly matched with RT18-63, RT14 and RT19 DIN rail fuse holders. Rated 500V AC with 50kA high breaking capacity, it covers full current range from 2A to 63A for general-purpose circuit overload and short-circuit protection. Adopted fireproof ceramic tube and silver-plated copper end caps, compliant with IEC269 & VDE0636 standards, widely used in industrial distribution boxes, machine tools, HVAC and automation equipment. One box contains 20 pcs for bulk wholesale.
1. Product Overview
RO16 cylindrical ceramic fuse link is a general-purpose gL low voltage overcurrent protection component with universal 14mm × 51mm outer dimension, specially designed to fit RT18-63, RT14 and RT19 modular DIN rail fuse bases.
This series supports wide current grades from 2A up to 63A, with 500V rated voltage and 50kA high short-circuit breaking capacity. Constructed with flame-retardant white ceramic housing, precision melting wire and anti-rust silver-plated copper end caps, it meets IEC269 and VDE0636 international safety standards. Each packing box includes 20 pieces, ideal for factory bulk procurement, industrial distribution cabinets, machine tool control panels and building electrical circuits.
2. Core Product Features
1. Standard 14×51mm Universal Size
- RT18-63 DIN rail modular fuse holder
- RT14 panel mount cartridge fuse socket
- RT19 industrial fuse base
No modification needed for replacement, widely interchangeable for most European standard low voltage distribution systems.
2. Full Complete Current Range (2A ~ 63A)
All common industrial specifications in stock:
2A / 4A / 6A / 10A / 16A / 20A / 25A / 32A / 40A / 50A / 63A
Covers light instrument circuits, lighting loops, pump/fan motor branch circuits and heavy main distribution branch protection. Custom non-standard current values available on bulk orders.
3. gL General Purpose Protection Characteristic
- Slow overload melting to avoid nuisance blow under normal transient load surge
- Instant short-circuit breaking within milliseconds to block huge fault current, protect wires, contactors and loads from burnout
Suitable for all general resistive and inductive low voltage AC circuits.
4. 50kA High Breaking Capacity
5. Fireproof Ceramic Tube & Anti-Corrosion Copper Caps
- High temperature resistant insulating ceramic shell: Non-flammable, no cracking or melting during fault blowout
- Silver-plated solid copper end caps: Low contact resistance, anti-oxidation, stable conduction under long full-load operation
- Sealed internal quartz sand filler to suppress electric arc spread
6. International Standard Certification
7. Bulk Packing Advantage
3. Working Conditions
- Ambient operating temperature: -10℃ ~ +60℃
- Application Environment: Indoor enclosed distribution cabinets, machine tool control rooms; not for long-term outdoor splash or heavy salt fog marine use
- Surrounding Air: Free of strong corrosive chemical gas
- Altitude: Full rated performance below 2000 meters above sea level
- Humidity: Relative humidity ≤90%, no continuous condensation
4. Unified Technical Specifications
| Parameter | Unified Specification for RO16 Series |
|---|---|
| Model | RO16 gL Cartridge Fuse |
| Outer Size | Ø14mm × L51mm |
| Matching Base | RT18-63 / RT14 / RT19 |
| Rated Voltage | 500V AC 50Hz |
| Breaking Capacity | 50kA |
| Characteristic Class | gL General Purpose |
| Current Grades | 2A,4A,6A,10A,16A,20A,25A,32A,40A,50A,63A |
| Housing Material | Flame-retardant insulating ceramic tube |
| End Cap Material | Silver-plated anti-rust copper |
| Arc Quenching Medium | High-purity quartz sand filler |
| Compliance Standards | IEC269, VDE0636 |
| Packing Quantity | 20 pieces per box |
| Core Functions | Overload protection, short-circuit fault breaking |
5. Typical Applications
- RT18 series DIN rail modular distribution box branch circuit protection
- CNC machine tools, textile & packaging equipment control power circuits
- HVAC air conditioning, water pump and fan motor auxiliary circuits
- Building commercial lighting and power distribution panels
- Automation instruments, sensor low voltage power supply loops
- Small welding equipment, charging cabinet internal safety protection
6. Frequently Asked Questions (FAQ)
1. Which fuse holder can RO16 match?
2. What does gL stand for?
3. How to select the right current rating?
4. What is the advantage of 50kA breaking capacity?
5. Can this fuse be used outdoors?
6. How many fuses in one box?
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
1. Product Overview
RO16 cylindrical ceramic fuse link is a general-purpose gL low voltage overcurrent protection component with universal 14mm × 51mm outer dimension, specially designed to fit RT18-63, RT14 and RT19 modular DIN rail fuse bases.
This series supports wide current grades from 2A up to 63A, with 500V rated voltage and 50kA high short-circuit breaking capacity. Constructed with flame-retardant white ceramic housing, precision melting wire and anti-rust silver-plated copper end caps, it meets IEC269 and VDE0636 international safety standards. Each packing box includes 20 pieces, ideal for factory bulk procurement, industrial distribution cabinets, machine tool control panels and building electrical circuits.
2. Core Product Features
1. Standard 14×51mm Universal Size
- RT18-63 DIN rail modular fuse holder
- RT14 panel mount cartridge fuse socket
- RT19 industrial fuse base
No modification needed for replacement, widely interchangeable for most European standard low voltage distribution systems.
2. Full Complete Current Range (2A ~ 63A)
All common industrial specifications in stock:
2A / 4A / 6A / 10A / 16A / 20A / 25A / 32A / 40A / 50A / 63A
Covers light instrument circuits, lighting loops, pump/fan motor branch circuits and heavy main distribution branch protection. Custom non-standard current values available on bulk orders.
3. gL General Purpose Protection Characteristic
- Slow overload melting to avoid nuisance blow under normal transient load surge
- Instant short-circuit breaking within milliseconds to block huge fault current, protect wires, contactors and loads from burnout
Suitable for all general resistive and inductive low voltage AC circuits.
4. 50kA High Breaking Capacity
5. Fireproof Ceramic Tube & Anti-Corrosion Copper Caps
- High temperature resistant insulating ceramic shell: Non-flammable, no cracking or melting during fault blowout
- Silver-plated solid copper end caps: Low contact resistance, anti-oxidation, stable conduction under long full-load operation
- Sealed internal quartz sand filler to suppress electric arc spread
6. International Standard Certification
7. Bulk Packing Advantage
3. Working Conditions
- Ambient operating temperature: -10℃ ~ +60℃
- Application Environment: Indoor enclosed distribution cabinets, machine tool control rooms; not for long-term outdoor splash or heavy salt fog marine use
- Surrounding Air: Free of strong corrosive chemical gas
- Altitude: Full rated performance below 2000 meters above sea level
- Humidity: Relative humidity ≤90%, no continuous condensation
4. Unified Technical Specifications
| Parameter | Unified Specification for RO16 Series |
|---|---|
| Model | RO16 gL Cartridge Fuse |
| Outer Size | Ø14mm × L51mm |
| Matching Base | RT18-63 / RT14 / RT19 |
| Rated Voltage | 500V AC 50Hz |
| Breaking Capacity | 50kA |
| Characteristic Class | gL General Purpose |
| Current Grades | 2A,4A,6A,10A,16A,20A,25A,32A,40A,50A,63A |
| Housing Material | Flame-retardant insulating ceramic tube |
| End Cap Material | Silver-plated anti-rust copper |
| Arc Quenching Medium | High-purity quartz sand filler |
| Compliance Standards | IEC269, VDE0636 |
| Packing Quantity | 20 pieces per box |
| Core Functions | Overload protection, short-circuit fault breaking |
5. Typical Applications
- RT18 series DIN rail modular distribution box branch circuit protection
- CNC machine tools, textile & packaging equipment control power circuits
- HVAC air conditioning, water pump and fan motor auxiliary circuits
- Building commercial lighting and power distribution panels
- Automation instruments, sensor low voltage power supply loops
- Small welding equipment, charging cabinet internal safety protection
6. Frequently Asked Questions (FAQ)
1. Which fuse holder can RO16 match?
2. What does gL stand for?
3. How to select the right current rating?
4. What is the advantage of 50kA breaking capacity?
5. Can this fuse be used outdoors?
6. How many fuses in one box?
7. Technical documentation and support
Download the full datasheet for detailed specifications, wiring diagrams and trip coordination guides.
Please contact our technical team for custom configuration or OEM/ODM solutions for your project.
Request a quote with details about your project for volume pricing, lead times, and compliance certifications.
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