Overview
The Bussmann KTK-25 Limitron is a fast-acting supplemental fuse designed for low-voltage overcurrent protection in industrial, commercial, and consumer electrical equipment. This lot includes seven units of the standard KTK-25 cartridge fuse, each rated 25 amp at 600 VAC with a 100 kAIC interrupting rating. These fuses provide economical, reliable protection for non-inductive circuits up to 600 volts and are ideal for maintenance stock, equipment replacement, or spare inventory.
Key Features
- Fast-Acting Protection — responds quickly to overcurrent conditions, minimizing equipment damage and downtime
- Supplemental Class Rating — UL 248-14 and CSA C22.2 No. 248.14 certified for supplemental circuit protection
- Cartridge Body Design — ferrule end terminals enable simple installation in standard fuse holders and clips
- Nickel-Plated Bronze Construction — corrosion-resistant terminals for reliable electrical contact and long service life
- 100 kAIC Interrupting Capacity — safely interrupts fault currents in standard industrial control and branch circuits
- New in Box Condition — this lot of seven fuses is guaranteed new and ready for immediate deployment
Technical Specifications
| Label | Value |
| Manufacturer | Bussmann (Eaton) |
| Part Number | KTK-25 |
| Ampere Rating | 25 A |
| Voltage Rating | 600 VAC |
| Interrupting Rating | 100 kAIC |
| Fuse Class | Supplemental |
| Body Type | Cartridge |
| Terminal Type | Ferrule End |
| Material | Nickel-Plated Bronze (terminals) |
| Response Time | Fast-Acting |
| UL Certification | UL 248-14, Guide JDYX, File E19180 |
| CSA Certification | C22.2 No. 248.14, Class 1422-01, File 53787 |
| RoHS Compliant | Yes |
| Quantity Per Lot | 7 Units |
Typical Applications
- Industrial Control Systems — protection for PLC circuits, motor controllers, and solenoid-operated devices
- Commercial HVAC Equipment — branch circuit protection in furnaces, heat pumps, and air handlers
- Power Distribution Panels — supplemental overcurrent protection in lighting and low-power branch circuits
- Maintenance Inventory — spare fuses for quick replacement in existing electrical systems rated 600 VAC or less
- Non-Inductive Circuits — ideal for resistive loads such as heating elements, incandescent lighting, and transformers
Compatibility & Replacements
Compatible With
- Standard cylindrical fuse holders rated 600 VAC or less
- Fuse clips and cartridge blocks with ferrule-end geometry
- Industrial control cabinets and consumer electrical panels (per NEC guidelines)
- Equipment originally designed for supplemental fuse protection
Replaces / Drop-In Replacement For
- Original equipment manufacturer (OEM) KTK-25 supplemental fuses in equivalent circuits
- Verify compatibility with your system integrator before ordering to ensure rating match and circuit compliance
Works With
- UL and CSA certified electrical systems up to 600 VAC
- Standard cartridge fuse holders and clips (ferrule-end compatible)
- Residential, commercial, and industrial panel distribution systems
- Non-inductive loads (resistive, transformers, light loads)
