Overview
The Bussmann KTK-1/8 is a LIMITRON fast-acting supplemental fuse designed for overcurrent protection in control circuits, lighting circuits, and meter circuits. This lot contains 10 fuses rated at 0.125A, 600VAC, delivering reliable branch-circuit and industrial control protection in AC applications. The KTK series provides 100 kAIC (kilo-amp interrupting capacity) at rated voltage, making it ideal for sensitive equipment requiring rapid response to fault conditions.
Key Features
- Fast-Acting Response: Limitron design interrupts overcurrent conditions rapidly to minimize circuit downtime and equipment damage.
- 600VAC Rating: Suitable for standard industrial and commercial electrical systems operating at nominal voltages up to 600VAC.
- Ferrule-End Design: Nickel-plated bronze ferrule ends (both sides) ensure secure seating in standard and rejection-style fuse holders.
- UL and CSA Certified: Listed to UL Standard 248-14 and CSA C22.2 No. 248.14, ensuring compliance with North American electrical codes.
- Melamine Tube Construction: Non-indicating body for simple visual identification and reliable performance in diverse environments.
- Bulk Quantity: Lot of 10 fuses provides spares for planned maintenance and emergency replacement scenarios.
Technical Specifications
- Current Rating: 0.125A (1/8A)
- Voltage Rating: 600VAC
- Interrupting Rating (IR): 100 kAIC at 600V
- Fuse Type: Fast-acting, supplemental
- Body Style: Melamine tube with nickel-plated bronze endcaps
- End Configuration: Ferrule end × ferrule end
- Physical Size: 13/32″ × 1-1/2″ (10.3 mm × 38.1 mm)
- Indication: Non-indicating
- Standards: UL Listed (Guide JDYX, File E19180), CSA Certified (Class 1422-01, File 53787), RoHS Compliant
- Quantity Per Package: 10 fuses
Typical Applications
The KTK-1/8 is widely used in:
- Industrial control circuit protection and automation systems
- Lighting circuit protection in commercial and industrial installations
- Meter circuits and instrumentation protection
- HVAC control systems and environmental monitoring equipment
- Process control panels and electrical distribution cabinets
- Telecommunications and signaling equipment
Compatibility & Replacements
Compatible With
- Standard Class CC fuse holders and blocks (for supplemental-rated equipment)
- Rejection-style fuse blocks when used with grooved ferrule design
- 600VAC electrical systems operating at standard industrial voltages
- Eaton/Bussmann modular open blocks (BCM603 series) and panel-mount holders
Replaces / Drop-In Replacement For
The KTK-1/8 directly replaces other 0.125A, 600VAC fast-acting fuses of equivalent interrupting rating and supplemental classification. Verify compatibility with your system integrator before ordering to ensure proper holder fit and electrical ratings.
Works With
- Standard Class J and Class CC fuse blocks
- DIN-rail mounted fuse holders
- Panel-mount fuse holders (HPS, HPF series)
- In-line fuse holders (HEY, HEZ series)
- Industrial electrical panels and distribution cabinets
