Jandorf S501 500 amps Fast Acting Fuse 2 pk

The Jandorf S501 500A Fast Acting Fuse comes in a convenient 2-pack built for demanding electronic circuits. With a sturdy ceramic tube, plated brass endcaps, and a 250V rating, these fuses are engineered to protect high-current applications while standing up to regular use in real-world environments.

Key specifications

• Rating: 500 A
• Volts: 250 V
• Type: Fast Acting fuse
• Tube construction: Ceramic
• Endcap: Plated brass
• Diameter × Length: 5 mm × 20 mm
• Package: 2 pieces per carded pack
• UL Listed: Yes
• CSA Listed: No
• Sub Brand: S501
• Application: Electronic circuits
• Tamper Proof: No

Why this fuse stands out

• Rapid overcurrent protection: The fast-acting design is purpose-built to interrupt abnormal current quickly, helping minimize damage to sensitive components and power supplies.
• Ceramic tube for durability: Unlike glass, the ceramic body offers superior heat tolerance and resilience against thermal stress, making it well-suited for environments with higher temperature swings or vibration.
• Reliable connections: Plated brass endcaps ensure solid, low-resistance contacts in fuse holders and boards, contributing to stable performance over time.
• Compact, standard form factor: With a 5 mm diameter and 20 mm length, these fuses fit a wide range of holders and circuits that demand a compact high-current protection solution.
• Certified safety: UL Listed adds a layer of safety assurance for use in compliant assemblies, making them a dependable choice for both DIY and professional builds.

Ideal uses and scenarios

• High-current protection for electronic power supplies, motor controllers, or large LED driver boards operating up to 250V.
• Repair and maintenance tasks where a quick replacement fuse is required to restore equipment after a transient or fault condition.
• Prototyping or testing rigs that simulate real-world loads requiring robust, fast-acting protection at 500A.
• Retail-ready stocking for electronics shops that provide spare parts for industrial and hobbyist circuits.

Installation and practical tips

• Always match the fuse rating to the circuit’s design specification. Do not substitute with a higher-current fuse in critical power paths.
• Use a compatible fuse holder or holder-equipped PCB to ensure secure contact and reliable operation.
• If replacing a blown fuse, inspect the surrounding circuit for underlying faults before re-energizing the system.
• Keep spares on hand in the included carded packaging for quick swaps during maintenance or repairs.

What you get

• 2 x Jandorf S501 500A Fast Acting Fuses (Carded packaging)
• Ready-to-use solution for immediate protection of electronic circuits up to 250V