Fuse Class RK1 125A LPN-RK-SP Series MPN:LPN-RK-125SP
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SKU
226-CXO-4XF62
Fuse Class RK1 125A LPN-RK-SP Series
The Fuse Class RK1 125A LPN-RK-SP Series from Bussmann is a time-delay fuse that offers excellent current limiting capabilities for electrical systems. It is designed to protect against temporary inrush currents and short circuits while preventing nuisance blowing. This high-quality fuse has no indicator, making it ideal for use with an indicating fuse block or cover. Its modified terminals ensure easy installation and compatibility with Class R fuse holders, providing a rejection feature that prevents the downgrade from current-limiting systems. With a rating of 125 Amp, this fuse is perfect for use in equipment and motor startup applications, providing reliable overcurrent protection in newer systems or upgrading older installations with Class H or K fuses.
Top product features:
- Current-limiting capabilities: Ensures reliable overcurrent protection in electrical systems
- Time-delay function: Prevents nuisance blowing during motor and equipment startups
- Rejection feature: Enables upgrading to a higher interrupting capacity for improved safety
Top product applications:
- Electrical systems in newer equipment: Provides reliable overcurrent protection for newer systems and motor startups
- Upgrading older installations: Enhances safety by enabling higher interrupting capacity for Class H or K fuses
- Nuisance-blowing prevention during motor starts: Prevents blowouts during motor and equipment startups, improving efficiency of the system
Time-delay, nonindicating UL Class RK1 fuses tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow Class RK1 fuses, they open to disconnect an electrical circuit when exposed to sustained loads and short circuits. They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block or cover.UL Class RK1 fuses are more current-limiting than RK5 fuses to react more quickly to overcurrent. These fuses are the same size as Class H and K fuses, but have a rejection feature that prevents an accidental downgrade from a current-limiting system. Their modified terminals ensure a match with the rejection clips in Class R fuse holders that prevent the installation of fuses with a lower interrupting capacity. They're typically used in newer equipment, but can also be used with a Class H fuse holder to upgrade older installations from Class H or K fuses for improved overcurrent protection. These fuses are current-limiting to prevent electrical damage by disconnecting circuits before they're exposed to the full magnitude and duration of an overcurrent.
Technical Specifications
- Item Fuse
- Amps 125 A
- AC Voltage Rating 250V AC
- DC Voltage Rating 250V DC
- Class RK1
- Series LPN-RK-SP
- Visual Indication Nonindicating
- Speed Time Delay
- Body Style Blade
- Fits Fuse Block Style Rejection
- Interrupt Rating 100kA at 250V DC, 300kA at 250V AC
- Fuse Size 7-1/8 in L x 1-9/16 in dia
- Length 7 1/8 in
- Diameter 1 9/16 in
- Equivalent Brand and Series Bussmann LPN-RK-SP, Littelfuse LLNRK, Mersen A2D-R
- Equivalent Series A2D-R, LLNRK, LPN-RK-SP
- Compatible Fuse Block Series HM600, R250
- Body Material Melamine
- Element Dual
- Standards CE, UL Special Purpose Guide JFHR, Guide JDDZ, File E4273, CSA Class 1422-02, File 53787, CSA C22.2, No. 248.12
Manufacturer Details
- Manufacturer: Bussmann
- Condensed Mfg Number: LPNRK125SP
- MPN: LPN-RK-125SP
Label Details
- Hazardous Material: N
- Green Material Flag: N
- Country of Origin: MX
- CA Prop 65 Wht Label: N
Classification Details
- Harmonization Code: 8536100040
- GDS Category Name: Class RK1 Fuses
- GDS Family Name: Fuses
- GDS Segment Name: Electrical
- UNSPSC: 39121604
- UNSPSC Class ID: 16
- UNSPSC Commodity Name: Circuit protection devices and accessories
- UNSPSC Commodity ID: 04
- UNSPSC Commodity Name: Time delay fuses
- UNSPSC Family ID: 12
- UNSPSC Family Name: Electrical equipment and components and supplies
- UNSPSC Segment ID: 39
- UNSPSC Segment Name: Electrical Systems and Lighting and Components and Accessories and Supplies
Shipping Details
- Not For Sale In: HI AK PR