RT18-32X 32A 690V 10x38mm DIN Rail Fuse Holder
RT18-32X 32A 690V 10x38mm DIN Rail Fuse Holder
Product model: RT18-32
Pole:1P,2P3P,4P
Mounting method: DIN rail installation
Fuse size: 10*38
Rated operational current Ie: 32A（500VAC）/25A（690VAC）
Rated operational voltage Ue： 500VAC/690VAC
Breaking capacity with fuse: 100kA(500VAC)/50kA(690VAC)
Standard: IEC 60269-2
Product model: RT18-32
Pole:1P,2P3P,4P
Mounting method: DIN rail installation
Fuse size: 10*38
Rated operational current Ie: 32A（500VAC）/25A（690VAC）
Rated operational voltage Ue： 500VAC/690VAC
Breaking capacity with fuse: 100kA(500VAC)/50kA(690VAC)
Standard: IEC 60269-2
1. Product Overview
The LVMA RT18-32X is a high-performance, DIN rail mountable fuse holder engineered for use with standard 10x38mm cylindrical fuses. Designed for low-voltage AC systems up to 690V and 32A, this holder provides secure, reliable housing for fuses in distribution panels, control cabinets, and industrial automation systems.
Featuring a built-in red LED blown-fuse indicator, the RT18-32X allows users to quickly identify a blown fuse without disassembly, reducing maintenance time and improving system uptime. Its compact design, flame-retardant housing, and standard DIN rail compatibility make it a versatile choice for both commercial and industrial circuit protection applications.
2. Key Features
- Standard 10x38mm Compatibility: Designed to fit all standard 10x38mm cylindrical fuses (gG/gPV types).
- 32A / 690V AC Rating: Suitable for most low-voltage AC power distribution and control circuits.
- Built-in Blown-Fuse Indicator: Red LED lights up when the fuse element fails, enabling instant visual troubleshooting.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in distribution panels and control cabinets.
- Flame-Retardant Housing: High-quality, heat-resistant plastic body (UL94 V-0) for enhanced safety and durability.
- Tool-Free Installation: Snap-on rail mount and spring-loaded terminals for fast, secure wire connections.
- Compact & Space-Saving: Slim profile design saves valuable panel space, ideal for high-density control circuits.
- IEC60269 Compliant: Meets international standards for low-voltage fuse holders, ensuring reliable performance.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | RT18-32X |
| Rated Voltage | 690V AC |
| Rated Current | 32A |
| Fuse Size | 10x38mm cylindrical fuse |
| Mounting Type | 35mm DIN Rail |
| Indicator | LED blown-fuse indicator (red) |
| Terminal Type | Screw / Spring clamp (tool-free) |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Operating Temperature | -25°C ~ +85°C |
| Protection Class | IP20 (indoor use) |
| Compliance | IEC 60269, CE certified |
4. Working Principle
The LVMA RT18-32X fuse holder safely houses and protects 10x38mm fuses in low-voltage circuits:
- Normal Operation: The fuse conducts current, and the LED indicator remains off.
- Overcurrent / Short-Circuit: When the fuse element melts, the LED circuit activates, lighting up the red indicator to signal a blown fuse.
- Secure Connection: The holder’s spring-loaded terminals ensure low-resistance contact with the fuse, minimizing power loss and overheating.
- Circuit Protection: The holder provides physical isolation for the fuse, preventing accidental contact with live parts during operation or replacement.
5. Applications
- Power Distribution Panels: Overcurrent protection for branch circuits, lighting, and power outlets.
- Industrial Control Circuits: Motor control centers, PLC systems, and automation equipment.
- Renewable Energy Systems: Small-scale solar combiner boxes and wind turbine auxiliary circuits.
- Commercial & Residential Installations: Building distribution boards, HVAC systems, and elevator control panels.
- Machinery & Equipment: CNC machines, conveyor systems, and industrial machinery control circuits.
6. Installation & Operation Instructions
- Mounting: Snap the RT18-32X holder onto a standard 35mm DIN rail inside the distribution panel or control cabinet.
- Wiring: Connect the line and load wires to the corresponding terminals, tightening them to the manufacturer’s recommended torque.
- Fuse Installation: Insert a 10x38mm fuse into the holder, ensuring it is fully seated and the cap is securely closed.
- Verification: Energize the circuit and confirm the LED indicator remains off. If the LED lights up immediately, check the fuse for continuity.
- Maintenance: If the LED indicator lights up, disconnect power before replacing the fuse with a new, correctly rated 10x38mm fuse.
7. Frequently Asked Questions (FAQ)
Q1: What size fuse does the RT18-32X use?
It is designed for 10x38mm cylindrical fuses, which are the most common size for low-voltage AC distribution circuits. It works with both general-purpose (gG) and photovoltaic (gPV) rated fuses.
Q2: What is the maximum current and voltage rating?
The holder is rated for 32A continuous current and 690V AC, making it suitable for most low-voltage industrial and commercial applications.
Q3: What does the red LED indicator do?
The LED lights up only when the fuse has blown, allowing you to quickly identify the faulty circuit without opening the holder or using test equipment.
Q4: Can I use this fuse holder outdoors?
No, the RT18-32X has an IP20 rating, designed for indoor use only. It must be installed inside a weatherproof enclosure for outdoor applications.
Q5: Is the RT18-32X compatible with other brands of 10x38mm fuses?
Yes, it is fully compatible with all standard 10x38mm cylindrical fuses from major manufacturers.
Q6: Is this fuse holder CE certified?
Yes, the LVMA RT18-32X complies with IEC 60269 standards and carries the CE mark, ensuring it meets international safety requirements for low-voltage electrical components.
8. Technical Documents & Support
Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
The LVMA RT18-32X is a high-performance, DIN rail mountable fuse holder engineered for use with standard 10x38mm cylindrical fuses. Designed for low-voltage AC systems up to 690V and 32A, this holder provides secure, reliable housing for fuses in distribution panels, control cabinets, and industrial automation systems.
Featuring a built-in red LED blown-fuse indicator, the RT18-32X allows users to quickly identify a blown fuse without disassembly, reducing maintenance time and improving system uptime. Its compact design, flame-retardant housing, and standard DIN rail compatibility make it a versatile choice for both commercial and industrial circuit protection applications.
2. Key Features
- Standard 10x38mm Compatibility: Designed to fit all standard 10x38mm cylindrical fuses (gG/gPV types).
- 32A / 690V AC Rating: Suitable for most low-voltage AC power distribution and control circuits.
- Built-in Blown-Fuse Indicator: Red LED lights up when the fuse element fails, enabling instant visual troubleshooting.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in distribution panels and control cabinets.
- Flame-Retardant Housing: High-quality, heat-resistant plastic body (UL94 V-0) for enhanced safety and durability.
- Tool-Free Installation: Snap-on rail mount and spring-loaded terminals for fast, secure wire connections.
- Compact & Space-Saving: Slim profile design saves valuable panel space, ideal for high-density control circuits.
- IEC60269 Compliant: Meets international standards for low-voltage fuse holders, ensuring reliable performance.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | RT18-32X |
| Rated Voltage | 690V AC |
| Rated Current | 32A |
| Fuse Size | 10x38mm cylindrical fuse |
| Mounting Type | 35mm DIN Rail |
| Indicator | LED blown-fuse indicator (red) |
| Terminal Type | Screw / Spring clamp (tool-free) |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Operating Temperature | -25°C ~ +85°C |
| Protection Class | IP20 (indoor use) |
| Compliance | IEC 60269, CE certified |
4. Working Principle
The LVMA RT18-32X fuse holder safely houses and protects 10x38mm fuses in low-voltage circuits:
- Normal Operation: The fuse conducts current, and the LED indicator remains off.
- Overcurrent / Short-Circuit: When the fuse element melts, the LED circuit activates, lighting up the red indicator to signal a blown fuse.
- Secure Connection: The holder’s spring-loaded terminals ensure low-resistance contact with the fuse, minimizing power loss and overheating.
- Circuit Protection: The holder provides physical isolation for the fuse, preventing accidental contact with live parts during operation or replacement.
5. Applications
- Power Distribution Panels: Overcurrent protection for branch circuits, lighting, and power outlets.
- Industrial Control Circuits: Motor control centers, PLC systems, and automation equipment.
- Renewable Energy Systems: Small-scale solar combiner boxes and wind turbine auxiliary circuits.
- Commercial & Residential Installations: Building distribution boards, HVAC systems, and elevator control panels.
- Machinery & Equipment: CNC machines, conveyor systems, and industrial machinery control circuits.
6. Installation & Operation Instructions
- Mounting: Snap the RT18-32X holder onto a standard 35mm DIN rail inside the distribution panel or control cabinet.
- Wiring: Connect the line and load wires to the corresponding terminals, tightening them to the manufacturer’s recommended torque.
- Fuse Installation: Insert a 10x38mm fuse into the holder, ensuring it is fully seated and the cap is securely closed.
- Verification: Energize the circuit and confirm the LED indicator remains off. If the LED lights up immediately, check the fuse for continuity.
- Maintenance: If the LED indicator lights up, disconnect power before replacing the fuse with a new, correctly rated 10x38mm fuse.
7. Frequently Asked Questions (FAQ)
Q1: What size fuse does the RT18-32X use?
It is designed for 10x38mm cylindrical fuses, which are the most common size for low-voltage AC distribution circuits. It works with both general-purpose (gG) and photovoltaic (gPV) rated fuses.
Q2: What is the maximum current and voltage rating?
The holder is rated for 32A continuous current and 690V AC, making it suitable for most low-voltage industrial and commercial applications.
Q3: What does the red LED indicator do?
The LED lights up only when the fuse has blown, allowing you to quickly identify the faulty circuit without opening the holder or using test equipment.
Q4: Can I use this fuse holder outdoors?
No, the RT18-32X has an IP20 rating, designed for indoor use only. It must be installed inside a weatherproof enclosure for outdoor applications.
Q5: Is the RT18-32X compatible with other brands of 10x38mm fuses?
Yes, it is fully compatible with all standard 10x38mm cylindrical fuses from major manufacturers.
Q6: Is this fuse holder CE certified?
Yes, the LVMA RT18-32X complies with IEC 60269 standards and carries the CE mark, ensuring it meets international safety requirements for low-voltage electrical components.
8. Technical Documents & Support
Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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