A50QS MERSEN | Alldatasheet
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Technical content
MERSEN.COM HS 12 Mersen products have been designed by Mersen for a range of specific applications to be operated depending on particular specification and conditions. Mersen makes no representation or/and warranty, and waives any liability, either express or implied for products’ reliability and life time or technical performance in case Mersen has not been provided with customer’s specifications or if the products are not purchased directly from Mersen or its distributors and/or agents. © 2025 Mersen. All rights reserved. Mersen reserves the right to change, adapt, limit or discontinue its products. Therefore the data provided herein are for information only and are not contractually binding. To ensure that Mersen provides the best solution to your needs, please contact and provide Mersen with all relevant technical specifications and conditions. A50QS Amp-Trap® Form 101 fuses grew out of the need to improve the overall performance of semiconductor fuses in response to new equipment requirements. The A50QS encompasses the best protection features – lower I2t to provide better protection for equipment, longer life when subjected to cyclic loading and lower watts loss. A50QS is today’s best choice for the protection of dynamic solid state equipment such as motor drives, inverters, UPS, etc. FEATURES/BENEFITS
- Lowest I2t for greatest protection of semiconductor circuits
- Low watts loss for cooler operation
- Superior cycling ability gives an equipment design advantage
- State-of-the-art protection for 500V equipment
- Ultra compact sizes allow down-sizing of existing equipment *(not UL) A50QS Amp-Trap® Form 101 HIGH SPEED FUSES RATINGS
- Volts: 500VAC / DC
- Amps: 35 to 60A (AC); 70 to 1200A (AC); 35 to 1200A (DC)
- I.R.: 200kA I.R. AC, 87kA I.R. DC; A50QS100-4: 200kA (@500VAC) HIGHLIGHTS
- 500V AC/DC rated
- Lowest I2t
- Low watts loss
- Superior cycling ability
APPLICATIONS
- Protection of 500V or less motor drives, UPS, inverters, etc. APPROVALS/STANDARDS
- UL recognized component UL File 60314
- AC: UL guide no. JFHR2
- DC Tested to UL standard 198L parameters (70-1200A)
- CSA Certified LR12636 SINGLE POLE FUSE BLOCKS FOR A50QS FUSES Catalog Numbering System A Amp-Trap® Fuse Rated Volts - 500 QS Style 250 Amperes* - 4 Mounting Types* Blades, bolt-in: 4 Fuse Ampere Rating Mount- ing Type Catalog No. 35-200 4 P243E 225-600 4 P266C 700-800 4 1SC375 900- 1000 4 FH50F5* * For ampere ratings and styles not listed, call Technical Services at 978-248-8914.
MERSEN.COM HS 13 HIGH SPEED FUSES Mersen products have been designed by Mersen for a range of specific applications to be operated depending on particular specification and conditions. Mersen makes no representation or/and warranty, and waives any liability, either express or implied for products’ reliability and life time or technical performance in case Mersen has not been provided with customer’s specifications or if the products are not purchased directly from Mersen or its distributors and/or agents. © 2025 Mersen. All rights reserved. Mersen reserves the right to change, adapt, limit or discontinue its products. Therefore the data provided herein are for information only and are not contractually binding. To ensure that Mersen provides the best solution to your needs, please contact and provide Mersen with all relevant technical specifications and conditions. A50QS Amp-Trap® Form 101 DIMENSIONS CATALOG NUMBERS (AMPS) * For ampere ratings and styles not listed, call Technical Services at 978-248-8914. A50QS35-4 A50QS80-4 A50QS1 75-4 A50QS350-4 A50QS700-4 A50QS40-4 A50QS90-4 A50QS200-4 A50QS400-4 A50QS800-4 A50QS50-4 A50QS100-4 A50QS225-4 A50QS450-4 A50QS900-4 A50QS60-4 A50QS1 25-4 A50QS250-4 A50QS500-4 A50QS1000-4 A50QS70-4 A50QS150-4 A50QS300-4 A50QS600-4 A50QS1 200-4 Catalog Number Mounting Type Dimensions - Inches (mm) A B C D E F G H