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The JTD Series time-delay, dual-element fuses carry the Littelfuse POWR-PRO® advanced technology designation and are specifically designed for circuits where space is at a premium. They are ideal for use in systems with high in-rush currents. The JTD fuses offer a patented design that reduces nuisance fuse openings. In addition, they provide Type 2 “No Damage” protection for both NEMA- and IEC-type motor circuit components. These fuses help lower the costs associated with downtime, provide longer fuse life by minimizing nuisance openings, increase system performance by minimizing equipment damage, and improve safety by minimizing accidents.
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. The self-certification at 300,000 A meets the current trend toward higher short-circuit current ratings (SCCR). Self-certification testing was conducted at a nationally recognized testing laboratory, and the tests were UL witnessed.
- POWR-PRO® technology
- Dual-element
- Patented design
- Current-limiting
- Superior protection against electrical system damage
- Provides extra time-delay protection with dual-element construction
- Reduces nuisance fuse openings
- POWR-PRO current limitation from 8/10-600 A. Reduces damage caused by heating and magnetic effects of short-circuit currents
JTD Parts
Filters
Part Number | Actions | Current Rating (Continuous) in Amps | Interrupting Rating | Opening | Maximum AC Voltage (V) | Voltage Rating (V) | Size | Agency Approvals |
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Part Number | Actions | Current Rating (Continuous) in Amps | Interrupting Rating
| Opening | Maximum AC Voltage (V) | Voltage Rating (V) | Size | Agency Approvals | |
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JTD Applications
- Motor control centers
- Fused combination motor controllers
- Transformers
- UL listed series-rated molded case circuit breaker panels
- General purpose circuits
Series: JTD Resources
![Resource](/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_kcuPRg4pm6B58A8H.jpg%3F-62169955622&w=3840&q=75)
UL POWR Fuses Flyer
![UL Class CF Fuses – UL Class J Fuses Cross Reference Guide](/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2Fmd_cZ6ZCkpbAsk36ksb.jpg%3F1739310734&w=3840&q=75)
UL Class CF Fuses – UL Class J Fuses Cross Reference Guide
Littelfuse offers Class J Fuses that can be used as a substitute for Class CF fuses. Utilize this guide as a cross-reference.
![Resource](/_next/image?url=https%3A%2F%2Fcdn2.webdamdb.com%2F1280_kFCgvJL5Bkt53oke.jpg%3F1724247954&w=3840&q=75)
How Do Fuses & Circuit Breakers Compare?
Download our white paper describing the benefits of using fuses for overcurrent protection.