Bolted Tag Fuse Vicfuse VBS1749- 40A 690V Max rating: 700VAC/450VDC
Protect your critical electrical systems with the VBS1749 High-Speed Fuse, a premium-grade semiconductor protection fuse engineered for fast, reliable interruption of fault currents in sensitive equipment. commonly used in Voltronics inverters.
Designed for industrial and power electronics applications, this fuse delivers ultra-fast response times, making it ideal for safeguarding inverters, rectifiers, drives, and power semiconductors commonly used across South Africa’s industrial and renewable energy sectors.
⚡ Ultra-Fast Semiconductor Protection
- Extremely fast fault clearing
- Low I²t (energy let-through)
- Protection against short circuits and overloads
- Reduced risk of damage to expensive components
This ensures maximum protection for high-value electrical systems.
🔌 Industrial-Grade Performance
- Current Rating: 40A
- Voltage Rating: Up to 700V AC / 450V DC
- Fuse Type: High-speed semiconductor fuse
- Body Style: Cylindrical / bolt-on compatible
- Standards/Approvals: IEC 60269-4
- Overall Length: 78mm
- Fuse Length: 50.6mm
- Fixing Centres: 63.5mm
- Fuse Diameter: 16mm
- Tag Width: 12.7mm
- Mounting Hole Diameter: 6.5
These specifications make it suitable for high-power industrial environments requiring reliable protection.
🧠 Why Choose a High-Speed Fuse?
Standard fuses react slower and may not protect sensitive electronics effectively. The Eaton Bussmann 40ET:
- Protects IGBTs, diodes, and thyristors
- Minimises downtime and equipment damage
- Improves system reliability
- Meets industrial protection standards
⚙️ Key Features
- ⚡ Ultra-fast acting (semiconductor protection)
- 🔥 High interrupting capacity
- 🧱 Robust industrial construction
- 🔌 40A current rating
- ⚙️ 690V high-voltage capability
- 🛡️ Low energy let-through (I²t)
- 🏭 Designed for power electronics
📏 Technical Specifications
| Parameter | Value |
|---|---|
| Product Code | VBS 1749 |
| Brand | VicFuse |
| Current Rating | 40A |
| Voltage Rating | Up to 700V AC / 450V DC |
| Fuse Type | High-Speed Semiconductor Fuse |
| Mounting | Cylindrical / Holder compatible |
| Application | Semiconductor protection |
| Interrupting Rating | High (industrial grade) |
🌍 Ideal for South African Applications
Perfect for:
- Solar inverters & PV systems ☀️
- Variable frequency drives (VFDs) ⚙️
- UPS and backup systems 🔋
- Industrial control panels 🏭
- Rectifiers & converters ⚡
- Motor drives and automation systems
With the rapid growth of solar energy and industrial automation in South Africa, this fuse is a critical protection component.
📦 What’s Included
- 1 x VicFuse VBS1749 Fuse
Click here to contact us if you have any enquiry.
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