Bussmann® LOW-PEAK LPJ_SPI ® Dual-Element Time-Delay Fuses Class J – 600 Volt Dimensional Data 2.25" (± 0.03) .81" .5" (± 0.03) 1A to 30A 2.38" (± 0.03) .63" 35A to 60A 1.06" (± 0.03) Catalog Symbol: LPJ_SPI Dual-Element, Time-Delay – 10 seconds (minimum) at 500% rated current Current-Limiting Ampere Rating: 6 to 60A Voltage Rating: 600Vac (or less) 300Vdc (or less): 35-60A Interrupting Rating: 300,000A RMS Sym. (UL) 100,000A dc Agency Information: UL Listed — Special Purpose*, Guide JFHR, File E56412 CSA Certified, 200,000 AIR, Class J per CSA 22.2 No. 248.8 Class 1422-02, File 53787 6-60 Amps General Information: • Permanent fuse Indication. • True dual-element fuses with a minimum 10 second timedelay at 500% overload. • Long time-delay minimizes needless fuse openings due to temporary overloads and transient surges. • Can often be sized for back-up protection against motor burnout from overload or single-phasing if other overload protective devices fail. • High interrupting rating to safely interrupt overcurrents up to 300,000A. • High degree of current limitation due to the fast speed-ofresponse to short-circuits. • Faster response to damaging short-circuit currents than mechanical overcurrent protective devices. • Reduces let-through thermal and magnetic forces in order to protect low withstand rated components. • Proper sizing provides “no damage” Type “2” coordinated protection for NEMA and IEC motor control in accordance with IEC Standard 947-4-1. • Dual-element fuses have lower resistance than ordinary fuses so they run cooler. • Lower watts loss reduces power consumption. • Unique dimensions assure that another class of fuse with a lesser voltage rating, interrupting rating or current-Iimiting ability cannot be substituted. • Space-saving package for equipment down sizing. *Meets all performance requirements of UL Standard 248-8 for Class J fuses. Catalog Symbol and Ampere Ratings LPJ-6SPI LPJ-10SPI LPJ-20SPI LPJ-40SPI LPJ-7SPI LPJ-12SPI LPJ-25SPI LPJ-45SPI LPJ-8SPI LPJ-15SPI LPJ-30SPI LPJ-50SPI LPJ-9SPI LPJ-17⁄Ω™SPI LPJ-35SPI LPJ-60SPI Recommended fuseblocks/fuseholders for Class J 600V fuses See Data Sheets listed below • Finger-safe fuseholders - 1152 • Open fuseblocks - 1114 • Open pyramid fuseblocks - 1108 Carton Quantity and Weight Ampere Ratings Weight** Carton Qty. Lbs. Kg. 6–30 10 1.09 0.494 35–60 10 1.78 0.808 **Weight per carton. For non-indicating version, the LPJ_SP is available. See Data Sheet: 1006 CE logo denotes compliance with European Union Low Voltage Directive (50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact Bussmann Application Engineering at 636-527-1270 for more information. 8-26-04 SB04295 Form No. LPJ_SPI 6-60 Page 1 of 3 Data Sheet: 1062 Bussmann® LOW-PEAK® LPJ_SPI Dual-Element Time-Delay Fuses Class J – 600 Volt 6-60 Amps 60A 30A 15A 10A 6A Time-Current Characteristic Curves–Average Melt AMPERE RATING 300 200 100 TIME IN SECONDS 10 1 1,000 100 1 .01 10 .1 CURRENT IN AMPERES 8-26-04 SB04295 Form No. LPJ_SPI 6-60 Page 2 of 3 Data Sheet: 1062 Bussmann® LOW-PEAK® Dual-Element Time-Delay Fuses Class J – 600 Volt LPJ_SPI 6-60 Amps Current Limitation Curves The only controlled copy of this Data Sheet is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 8-26-04 SB04295 Form No. LPJ_SPI 6-60 Page 3 of 3 Data Sheet: 1062