Littelfuse JTD400
MPNJTD400
Fuse, 400A, 600VAC, Class J Time Delay|400 Amp Fuse, Time Delay, Brand or Series: Class J, Interrupting Rating: 200000 Amp VAC RMS Symmetrical, Terminal Type: Bolt Mount, Dimensions: 2 Diameter x 7 1/8 Length Inch, Voltage Rating: 600 VAC, Material: Stone Sand and Granular Quartz Filler, Features: Time Delay Dual Element, Visual Indicator.
$248.97 – $356.23Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | JTD |
| Equivalent series | AJT, JTD, LPJ |
| Equivalent brand and series | Bussmann LPJ; Littelfuse JTD; Mersen AJT |
| Compatible fuse block series | LFJ |
| AC voltage rating | 600V AC |
| DC voltage rating | 500V DC |
| Body material | Melamine |
| Standards | CE; CSA Certified; UL 248-8 Class J; UL Listed |
| Amps | 400 A |
| Brand | LITTELFUSE |
| Class | J |
| Speed | Time Delay |
All specifications
| Parameter | Value |
|---|---|
| Length | 3-3/8 in |
| Element | Dual |
| Diameter | 7-1/8 in |
| Fuse size | 3-3/8 in L x 7-1/8 in dia |
| Body style | Blade |
| Interrupt rating | 200kA at 600V AC; 20kA at 500V DC |
| Visual indication | Nonindicating |
| Fits fuse block style | Nonrejection |
MPN
JTD400