Overview
The Bussmann Limitron KTS-R150 is a cartridge-style current limiting fuse engineered for industrial power distribution and motor control circuits. This Class RK1 fast-acting fuse provides advanced protection for equipment sensitive to transient overloads. Rated at 150A, 600VAC with a 200 kA interrupting capacity, the KTS-R150 is UL listed and CSA certified for North American applications.
Key Features
- Fast-acting response suitable for circuits with no heavy motor surge currents
- Current-limiting technology reduces short-circuit damage to downstream equipment
- Class RK1 rating provides coordination with motor control devices and switchgear
- 200 kA @ 600V interrupting capacity for reliable fault clearing
- Compact cartridge design fits standard fuse holders and disconnect switches
- UL Listed (Std. 248-12) and CSA Certified for reliability and compliance
Technical Specifications
- Part Number: KTS-R150 (also KTS-R-150)
- Rating: 150A
- Voltage: 600VAC
- Class: RK1 (Class J cartridge fuse)
- Speed: Fast-Acting
- Interrupting Capacity: 200 kA @ 600VAC
- Form Factor: Cylindrical Cartridge Blade Fuse
- Certifications: UL 248-12 (File E54273), CSA C22.2 No. 248-12
Typical Applications
The Bussmann KTS-R150 is well-suited for:
- Motor circuit protectors and combination starters
- Power distribution panels and industrial switchgear
- Transformer primary and secondary circuits
- Solenoid and contactor branch circuits
- Welding machine power supplies
- HVAC and facility equipment feeders
Compatibility & Replacements
Compatible With
- Standard Class RK1 fuse holders and disconnect switches rated for cartridge fuses
- Industrial control panels and motor starters using 600V circuits
- Electrical equipment designed for Class RK1 current-limiting protection
Replaces / Drop-In Replacement For
- Bussmann KTS-R 150A cartridge fuses (all variant part numbers)
- Other 150A, 600V Class RK1 fast-acting cartridge fuses of equivalent dimensions
Works With
- 600VAC power systems and three-phase distribution equipment
- Motor control centers (MCCs) and combination starters
- Standard electrical test and diagnostic equipment
- Industrial automation control circuits up to 600V














