JLLN800 - 800Amp Fuse Description
JLLN800 - 800Amp Fuse
When you're matching an 800-amp fuse to existing electrical equipment, the catalog number matters—but the electrical ratings and physical configuration complete the compatibility check. The Littelfuse JLLN800 is a Class T, fast-acting, current-limiting fuse with an 800A continuous current rating and knife-blade/bolt-in construction. When correctly matched to equipment requiring these exact characteristics, the JLLN800 is a focused electrical component built to last when properly installed and operated within its specified ratings.
Key Features and Benefits
- 800A continuous current rating: Clearly identifies the amperage for applications specifically requiring a 700-series JLLN fuse rated at 800 amps.
- Class T configuration: Provides an essential compatibility checkpoint when identifying a replacement or maintenance fuse.
- Fast-acting operation: Littelfuse designates the JLLN800 as Fast-Acting (F).
- Current-limiting design: The manufacturer-listed family style provides another key characteristic to match against equipment requirements.
- 300VAC maximum rating: Suitable for compatible applications requiring a fuse rated for up to 300VAC.
- 125VDC maximum rating: Also carries a separately specified maximum DC voltage of 125VDC.
- Knife-blade/bolt-in construction: Provides a defined physical format to verify against existing equipment.
- Non-indicating design: Littelfuse specifies the JLLN800 as a non-indicating fuse.
Technical Specifications
-
Manufacturer: Littelfuse
-
Catalog Number: JLLN800
-
Series: JLLN
-
Manufacturer Description: FUS 300V F/A CLASS T 800A
-
Continuous Current Rating: 800A
-
Fuse Class: Class T
-
Opening Characteristic: Fast-Acting (F)
-
Family Style: Current Limiting
-
Maximum AC Voltage: 300VAC
-
Maximum DC Voltage: 125VDC
-
AC Interrupting Rating: 200,000A (200 kA) at 300VAC
-
DC Interrupting Rating: 20,000A (20 kA) at 125VDC
-
Size / Construction: Knife-Blade/Bolt-In
-
Indicating: No
-
Mounting Method: Fuse Block / Clip / Holder
-
PG Holder: LSCR Series
Material Compliance and Certifications
The supplied manufacturer information does not specify UL, CSA, CE, RoHS, REACH, or other material-compliance or certification details for the JLLN800. This should not be interpreted to mean the fuse lacks a particular approval. If a certification or material-compliance requirement is important for your installation, confirm it against current authoritative Littelfuse documentation and the markings on the actual product.
Where It Works Best
The Littelfuse JLLN800 800A Class T fuse is best suited for compatible electrical equipment that requires an 800A, fast-acting, current-limiting Class T fuse with knife-blade/bolt-in construction. It is particularly straightforward to evaluate when existing equipment documentation provides the required fuse class, amperage, AC or DC voltage, interrupting capacity, and physical configuration.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Littelfuse® is a registered trademark of Littelfuse, Inc. Products sold are surplus, used, or refurbished and are NOT supplied by Littelfuse, Inc. or its affiliates.
Specifications
- Width:2.062
- Depth:2.062
- Height:3.375
- Amperes:800
- A.I.C. Rating & Volts:200 kA @ 300 V.AC
- Type:JLLN
- Additional Notes:Knife-blade Style, Non-Indicating, Very Fast-Acting, current-limiting Class T Fuse
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).