ens SITOR 3NE3335 aR Fuse, 560A 1000VAC, Ultrafast Semiconductor Protection, NH Size 3 - Pack of 3

Siemens SITOR 3NE3335 aR Fuse, 560A 1000VAC

The Siemens SITOR 3NE3335 aR Ultrafast Fuse Link is an essential component for the precise and rapid protection of sensitive power semiconductors within industrial applications. As part of the renowned SITOR series, this NH Size 3 fuse is expertly designed to offer exceptional reliability and ultra-fast fault clearing characteristics, preventing costly damage to critical power electronics such as diodes, thyristors, IGBTs, and GTOs. With a robust ceramic body and silver-plated contact blades, it ensures stable and efficient performance in demanding AC circuits up to 1000V.

Key Features:

• Ultrafast Protection (aR Characteristic): Specifically engineered for the partial-range protection of power semiconductors, providing extremely rapid interruption of overcurrents.
• High Breaking Capacity: Ensures safety and system integrity with an impressive breaking capacity of 200kA at 1000VAC.
• Optimized I²t Values: Features very low melting integral (I²t) to minimize let-through energy during short circuits, which is crucial for protecting vulnerable semiconductor devices.
• Low Power Loss: Efficient design minimizes power dissipation, contributing to lower operating temperatures and enhanced energy efficiency within the system.
• Robust NH Size 3 Construction: Durable ceramic body with silver-plated contact blades ensures mechanical strength, excellent insulation, and reliable electrical contact for long-term operation.
• Industrial Standard Compliance: Manufactured according to IEC 60269-4 for fuses protecting semiconductor devices.
• Wide Application Suitability: Ideal for use in a broad range of high-power industrial electronics.

Detailed Technical Specifications:

Electrical Characteristics:

• Manufacturer: Siemens
• Series: SITOR
• Part Number: 3NE3335
• Rated Current (IN): 560A
• Rated Voltage (VAC): 1000V AC
• Fuse Characteristic: aR (Ultrafast, Partial Range Breaking Capacity for Semiconductor Protection)
• Breaking Capacity (Interrupting Rating): 200kA @ 1000VAC
• Melting Integral (I²t) @ 1000V: 16000 A²s (typical for 0 -> Ip at rated voltage)
• Rated Power Loss (at rated current): 95W
• Operating Temperature Range: -20°C to +50°C (for fuse with base/holder, higher for storage)

Mechanical Specifications:

• Body Material: Ceramic
• Contact Blades: Silver-plated
• Form Factor: NH Fuse Link
• Size: NH Size 3 (Standardized dimensions for NH fuse systems)
• Mounting: Designed for standard NH fuse bases/holders (e.g., Siemens 3KL/3KF series)

Standards & Compliance:

• International Standards: IEC 60269-1, IEC 60269-4 (Fuses for the protection of power semiconductors)
• Certification: RoHS Compliant

Applications:

The Siemens SITOR 3NE3335 aR Fuse Link is indispensable for the reliable protection of power semiconductors in various high-power industrial applications, including:

• Power converters and rectifiers
• Industrial motor drives and soft starters
• Uninterruptible Power Supplies (UPS) and voltage stabilizers
• Frequency converters and inverters
• Welding equipment
• Electrolytic plants
• Renewable energy systems (e.g., wind power converters, large-scale solar inverters)

This product is supplied as a pack of 3 units.