Overview
The Littelfuse JTD2.5ID is a Class J time-delay indicator fuse engineered for overcurrent protection in motor control circuits and high inrush-current systems. The JTD_ID Indicating Series fuses provide visual blown indication and maximum protection in a compact size and are specifically designed for circuits where space is at a premium. The POWR-PRO performance brand offers advanced technology protection features, such as self-certification to 300,000 A rms symmetrical and superior current-limiting capability. This lot includes two units for redundancy and stock replenishment.
Key Features
- Visual blown fuse indication and maximum protection in a compact size
- Patented design that reduces nuisance fuse openings and provides Type 2 “No Damage” protection for both NEMA- and IEC-type motor circuit components
- Ideal for use in systems with high in-rush currents
- Once the indicator window darkens, it stays dark regardless of power state or location
- Built-in, blown-fuse indication for quick identification of blown fuses, which reduces downtime and increases safety
Technical Specifications
- Ampere Rating: 2.5 A (2-1/2 A)
- Voltage Rating: 600 VAC / 300 VDC
- Fuse Type: Class J, time-delay (T-rated)
- Current-Limiting Capability: POWR-PRO current limitation from 1/10-6000 A
- Interrupt Rating: 200/20 kA (symmetrical / asymmetrical)
- Series: JTD_ID (POWR-PRO Indicator)
- Construction: Cartridge body, dual-element, melamine barrel
- Terminal Style: Ferrule terminal
- Mounting: Holder mount compatible
- UL Certification: UL JDDZ E81895
- CSA Certification: CSA 1422-02 029862
- Quantity: 2 units per lot
Typical Applications
Applications include fused combination motor controllers to provide IEC Type II (no damage) motor branch-circuit short-circuit and ground fault protection, motor control centers, transformer protection, protection for UL Listed series-rated molded case circuit breaker panels, and general purpose circuits — mains, feeders and branch circuits — especially when space is at a premium.
Compatibility & Replacements
Compatible With
- Class J fuse holders and dead-front fuse blocks (NEMA and IEC-type)
- Motor control centers (MCCs)
- Motor combination starters and controllers
- Transformer protection circuits
- UL-listed molded case circuit breaker (MCCB) panels
- General industrial electrical distribution systems rated 600 VAC
Replaces / Drop-In Replacement For
- Littelfuse JTD002.5 (non-indicating version)
- Class CF fuses rated 2.5 A (per Littelfuse cross-reference compatibility)
- Legacy non-indicating Class J 2.5 A fuses in motor circuits
Works With
- NEMA-type motor starters and controls
- IEC-type motor circuit protection devices
- 600 VAC / 300 VDC industrial circuits
- High inrush-current load protection systems
- Littelfuse POWR-SAFE fuse holders (IP20 touch-safe designs)
