For 1.25A protection, Littelfuse IDSR1.25 brings 600V AC / 600V DC capability to the IDSR Series. Electrical protection is based on Class RK5 indicating fuse behavior and 200kA AC interrupting capability. Visual blown-fuse indication is part of the series design. Refer to the official datasheet for final coordination.
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Rated 1.25A, IDSR1.25 belongs to the Littelfuse IDSR Series and uses a Indicating Dual-Element Time-Delay Class RK5 Fuse construction for 600V AC / 600V DC circuits. Mechanically it uses a Class R format for cartridge / clip installation; electrically it is rated to interrupt 200kA AC. Published dimensions for this rating/configuration are 127.0mm length; 20.7mm max body diameter. The indicating design also supports 600V DC circuits. Applications include DC circuits, Solar Inverters, Motor, Transformer, Solenoid. Confirm final suitability with the official datasheet and UL 248-12.
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