Bussmann® LOW-PEAK® LPS-RK_SPI 6-60 Amps Dual-Element, Time-Delay Fuses w/Permanent Fuse Indication Class RK1 – 600 Volt Dimensional Data 5.5" (± 0.31) 5" (± 0.31) .81" (±0.008) 6A to 30A Catalog Symbol: LPS-RK_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) Interrupting Rating: ac: 300,000A RMS Sym. dc: 100,000A Agency Information: UL Listed, Special Purpose**, Guide JFHR, File E56412 CSA Certified, (200,000AIR), Class RK1 per CSA C22.2, No. 248.12, Class 1422-02, File 53787 1.06" (±0.008) 35A to 60A Features: • Current-limitation for maximum short-circuit protection. • Type 2 protection for IEC and NEMA starters when properly sized. • Permanent fuse Indication • High inrush current motor protection. • Time-delay permits 130% FLA sizing for back-up motor protection. • Protection against single-phase motor damage. • Low watt loss power consumption. • Minimum voltage for indication is 75Vac. Applications: • Branch distribution • Motors • Transformers • Solenoids • General purpose circuits 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. **Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses. Catalog Symbol and Amperes LPS-RK-6SPI LPS-RK-10SPI LPS-RK-20SPI LPS-RK-40SPI LPS-RK-7SPI LPS-RK-12SPI LPS-RK-25SPI LPS-RK-45SPI LPS-RK-8SPI LPS-RK-15SPI LPS-RK-30SPI LPS-RK-50SPI LPS-RK-9SPI LPS-RK-17⁄Ω™SPI LPS-RK-35SPI LPS-RK-60SPI Carton Quantity and Weight Ampere Ratings Weight* Carton Qty. Lbs. Kg. 6–30 10 1.6 0.725 35–60 10 2.6 1.178 *Weight per carton. For non-indicating version, the LPS-RK_SP is available. See Data Sheet: 1001 8-26-04 SB04295 Form No. LPS-RK_SPI Page 1 of 3 Data Sheet: 1061 Bussmann® LOW-PEAK® LPS-RK_SPI Dual-Element, Time-Delay Fuses w/Permanent Fuse Indication 6-60 Amps Class RK1 – 600 Volt TIME IN SECONDS Time-Current Characteristic Curves–Average Melt RMS SYMMETRICAL CURRENT IM AMPERES Recommended fuseblocks for Class R 600V fuses See Data Sheet: 1111 8-26-04 SB04295 Form No. LPS-RK_SPI Page 2 of 3 Data Sheet: 1061 Bussmann® LOW-PEAK® LPS-RK_SPI Dual-Element, Time-Delay Fuses w/Permanent Fuse Indication 6-60 Amps Class RK1 – 600 Volt INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS Current-Limitation Curve RMS SYMMETRICAL CURRENTS IN AMPERES A–B=ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS) 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. LPS-RK_SPI Page 3 of 3 Data Sheet: 1061