Overview
The Littelfuse TD70 ID POWR-GARD indicator time-delay fuse provides reliable overcurrent protection with visual fault indication in industrial electrical systems. Manufactured by Littelfuse, a leading supplier of circuit protection products, this fuse combines dual-element time-delay technology with an indicator window that pinpoints blown fuses at a glance. The box contains 5 replacement fuses suitable for use in motor circuits, control systems, and general industrial power distribution.
Key Features
- Visual Indicator: Indicator fuse pinpoints open fuses immediately—if the indicating window is dark, the fuse has opened
- Time-Delay Dual Element: Dual element construction with time-delay characteristics reduces nuisance trips on normal inrush currents
- Class J Rating: Class J cartridge-style construction with 600 VAC/300 VDC rating and 200/20 kA interrupt capacity
- Reduced Downtime: Visual indication eliminates guesswork when troubleshooting blown fuses
- Box of 5: Convenient multi-pack for stocking and field replacements
Technical Specifications
See specifications table below for voltage, current limiting capability, and physical dimensions.
Typical Applications
- Motor protection circuits
- Industrial control systems and machine tool protection
- Power distribution and panel-mounted protection
- Commercial HVAC and refrigeration equipment
- General industrial electrical equipment
Compatibility & Replacements
Compatible With
- Class J fuse blocks and holders
- Standard 600 VAC electrical distribution systems
- Industrial motor control circuits
- Electrical equipment rated 600 VAC or less
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Ensure that replacement fuse ratings and dimensions match the original equipment specifications.
Works With
- Class J cartridge-style fuse holders
- Industrial fuse blocks and bus bars
- Control panel assemblies and distribution equipment










