Overview
The Bussmann KRP-C-601SP is a Class L fuse, KRP-C, time-delay, current limiting fuse, 601 A, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc. This fuse is engineered for high-capacity industrial electrical systems requiring coordinated short-circuit and overload protection.
Key Features
- Current limiting, 4 seconds (minimum) time-delay at 500% rated current, 300,000A interrupting rating
- Glass melamine tube construction with silver-plated end bells
- UL listed, CSA certified, CE marked, and RoHS compliant
- Low-peak design minimizes arc flash hazard and equipment damage
- Blade-bolted terminal configuration for Class L fuse holders
Technical Specifications
- Amperage: 601 A
- Voltage Rating: 600Vac / 300Vdc
- Interrupting Rating (IR): 300kA Vac RMS Sym. / 100kA Vdc
- Response Time: Time-delay, 4 seconds (minimum) at 500% rated current
- Fuse Class: Class L
- Connection Type: Blade and bolted
- Tube Material: Glass melamine
- Dimensions: 2.5″ Dia x 8 5/8″ L (63.5 x 203.2 mm)
- Weight: 3.64 lbs
Typical Applications
- Large distribution switchboards and power panelboards
- Large machinery disconnects
- Industrial process control and manufacturing equipment protection
- Data center and power distribution infrastructure
- Coordinated circuit protection on high-capacity 480V/600V systems
Compatibility & Replacements
Compatible With
- Class L fuse holders and disconnects (600Vac rated)
- Industrial control panels and switchboards rated for 601A minimum
- Electrical systems requiring 300kA interrupting capacity
- UL-listed power distribution equipment
Replaces / Drop-In Replacement For
- Alternate part number 051712605069
- Similar Class L fuses from other manufacturers in the 601A range (verify with OEM before substitution)
Works With
- Standard Class L fuse bases and holders per UL guide JDDZ
- Electrical systems compliant with NEC Article 240 and IEC 60269-1
- Equipment certified to CSA C22.2 No. 248.10
