JTD300-ID - 300 Amp Fuse Description
JTD300-ID - 300 Amp Fuse
When your equipment calls for a 300A indicating Class J time-delay fuse, the details beyond amperage matter. The JTD300-ID—manufacturer catalog reference JTD300ID—is a 300-amp fuse from the JTD_ID Series with Slo-Blo/Time Lag (T)/Time Delay operation, knife-blade construction, and an indicating design. For a replacement, check the full specification rather than relying on "300A" alone: fuse class, time-delay characteristic, AC or DC voltage, applicable interrupting rating, indicating status, knife-blade format, and mounting compatibility must match the equipment requirements.
Key Features and Benefits
- 300A continuous current rating for equipment specified for a 300-amp fuse
- Class J fuse configuration
- Indicating design provides the indicating feature specified for JTD300ID
- Time-delay operation identified as Slo-Blo/Time Lag (T)/Time Delay
- Rated for a maximum of 600VAC
- Maximum 500VDC rating
- Knife-blade construction gives you another important physical specification to verify during replacement
- Part of the JTD_ID Series
- POWR-PRO Fuse family style
- Mounts with a compatible fuse block, clip, or holder
- LFJ60400 Series is the specified holder family
Technical Specifications
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Catalog Number: JTD300-ID
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Manufacturer Catalog Reference: JTD300ID
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Series: JTD_ID
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Manufacturer Description: FUS 600V T/D CLASS J 300A INDICATING
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Product Type: Class J Time-Delay Indicating Fuse
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Continuous Current Rating: 300A
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Maximum AC Voltage: 600VAC
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Maximum DC Voltage: 500VDC
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AC Interrupting Value 1: 200,000A at 600VAC
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AC Interrupting Value 2: 300,000A at 600VAC
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DC Interrupting Rating: 20,000A at 500VDC
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Published Interrupting Rating: 20 kA at 500VDC
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Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
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Fuse Class: Class J
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Family Style: POWR-PRO Fuse
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Construction / Size: Knife-Blade
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Indicating: Yes
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Mounting Method: Fuse Block / Clip / Holder
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Specified Holder Series: LFJ60400 Series
Material Compliance and Certifications
The supplied product information confirms the JTD300-ID's 300A continuous current rating, Class J designation, time-delay opening characteristic, AC and DC voltage ratings, interrupting values, indicating status, knife-blade construction, and mounting information.
Where It Works Best
The JTD300-ID suits electrical equipment designed for a 300A Class J time-delay indicating fuse with matching voltage, interrupting, physical, and mounting requirements. For AC service, confirm the equipment requirements against the 600VAC maximum rating and the applicable manufacturer-supplied AC interrupting value. For DC service, verify compatibility with the 500VDC maximum rating and 20 kA interrupting rating at 500VDC.
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Specifications
- Width:2.0
- Depth:2.0
- Height:7.125
- Amperes:300
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:JTD
- Additional Notes:Knife-Blade Style, Indicating, Time-Delay, current-limiting Class J Fuse
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