Home » JTD050 FUS 600V T/D CLASS J 50A
JTD050 FUS 600V T/D CLASS J 50A
JTD050 FUS 600V T/D CLASS J 50A
LittleFuse SKU: JTD050 Barcode: JTD050
LittleFuse

JTD050 FUS 600V T/D CLASS J 50A

In stock - 10 items available
SKU: JTD050 UPC: JTD050
(0)
$191.50 CAD
-25% $255.00 CAD $191.50 CAD

Questions? Ask an Expert or Visit the Store

Email (905)553-7171
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Weight: 3.0 lb

Motor branch circuits, transformer primaries and control panels need a fuse that rides through inrush current but still clears a short fast. The Littelfuse JTD050 is a 50 A, 600 VAC Class J time-delay fuse from the JTD (POWR-PRO) line: a dual-element, current-limiting cartridge with a 200 kA AC interrupting rating. Panel builders and maintenance electricians keep it on the shelf for Class J fuse blocks and fusible disconnects. The listing notes a package of 10, so confirm the sell unit with us before ordering.

Why electricians pick it

  • Dual-element time delay rides through motor and transformer inrush, cutting nuisance openings.
  • Current-limiting design gives IEC Type 2 (no damage) protection for NEMA and IEC motor starter components.
  • 200 kA interrupting rating at 600 VAC and 20 kA at 300 VDC.
  • Compact 1-1/16 in x 2-3/8 in ferrule body, smaller than an equivalent Class RK5 fuse.
  • UL Listed Class J and CSA certified.

Specifications

Spec Detail
Brand Littelfuse
Model JTD050 (JTD series, POWR-PRO)
Fuse class UL Class J, time delay, dual element, current limiting
Ampere rating 50 A
Voltage rating 600 VAC / 300 VDC
Interrupting rating 200 kA at 600 VAC; 20 kA DC
Size 1-1/16 in dia. x 2-3/8 in (27 x 60.3 mm), ferrule
Approvals UL Listed, CSA certified
Sell unit Listed as a package of 10 (confirm before ordering)

Pro tip from the counter

A 50 A Class J fuse shares the 60 A ferrule frame size, so it drops into a 60 A Class J block or disconnect, and the Class J body physically rejects Class H or RK5 fuses. If one of these opens on a motor circuit, check the overload relay and the motor for a locked rotor or ground fault before fitting a new one; a time-delay fuse rarely blows on normal starting current.

Best for: motor branch circuits, transformer primary protection, industrial control panels, Class J fusible disconnects, pump and HVAC equipment

Ships Canada-wide from our Vaughan, ON counter. Contractors and panel shops can get trade pricing through a quote or by calling (905) 553-7171.
Free shipping over $150 across Ontario and Quebec, and 10% off the rest of Canada.
CSA-approved products from a Canadian-owned supplier, 15+ years in Ontario.
Counter pickup in Vaughan, Monday to Friday, 8am to 4pm. Call the counter for advice.
30-day returns on most items. Bulbs, cut-to-length wire and hazardous goods are excluded.

Compare With Similar Items

Feature JTD050 FUS 600V T/D CLASS J 50A
JTD050 FUS 600V T/D CLASS J 50A
$191.50
Current
Brand LittleFuse
Type
Availability In stock
Rating No reviews

Pick up at our Vaughan counter

Our counter is at 8520 Jane St, Unit 5, Vaughan, ON L4K 5A9, open Monday to Friday, 8am to 4pm. Order online and collect, or bring a material list and we will price it at the counter. Contractors and DIY customers are both welcome.

Contact Us