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JKS-40 The JKS-40 is a 40A, 600VAC Class J fast blow cartridge fuse from Eaton Bussmann. It features a 200kA breaking capacity and requires a holder for mounting.
Mfr Part #:

JKS-40

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
The JKS-40 is a 40A, 600VAC Class J fast blow cartridge fuse from Eaton Bussmann. It features a 200kA breaking capacity and requires a holder for mounting.
✓ Total Stock: 6 pcs
$ Price Range: $162.07

JKS-40 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
6 pcs
On Request
6 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

JKS-40 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity @ Rated Voltage
Class
Current Rating (Amps)
Fuse Type
Mounting Type
Response Time
Voltage Rating
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JKS-40 Description

Short technical summary and product information.

The JKS-40 is a Class J fast blow cartridge fuse from Eaton Bussmann, designed for overcurrent protection in electrical and industrial systems. With a current rating of 40A and a voltage rating of 600VAC, it offers a high interrupting capacity of 200kA, ensuring safe operation under fault conditions. The fast blow response time makes it ideal for protecting circuits that are sensitive to overcurrent spikes. The fuse is cylindrical in shape, with dimensions of 1.060" diameter by 2.380" length, and requires a compatible fuse holder for mounting. It carries approvals from CE, CSA, and UL, indicating compliance with major safety standards. Typical applications include motor control centers, panel boards, and other industrial power distribution equipment.

JKS-40 Quick Information

Product Type: Cartridge Fuse
Series: JKS
Canonical Name: Eaton Bussmann JKS-40 Class J Fast Blow Cartridge Fuse, 40A, 600VAC, 200kA Breaking Capacity
Subcategory: Class J Cartridge Fuse

JKS-40 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

JKS-40 Estimated Pricing

Qty Low High
10+ $162.07 $162.07

Estimated market price range - modelled values for guidance only, not live distributor offers.

JKS-40 Features

  • Rated for 40A continuous current at 600VAC.
  • Fast blow response for rapid overcurrent protection.
  • High breaking capacity of 200kA.
  • Class J cartridge fuse requiring a holder.
  • Approved by CE, CSA, and UL.

JKS-40 Applications

  • Used in industrial power distribution systems.
  • Ideal for motor control center protection.
  • Suitable for panel board overcurrent protection.
  • Applied in electrical equipment requiring fast-acting fuses.

JKS-40 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the JKS-40?

40A.

What is the voltage rating?

600VAC.

What is the breaking capacity?

200kA.

What is the response time?

Fast blow.

What is the package style?

Cylinder.

What fuse class is it?

Class J.

What approvals does it have?

CE, CSA, UL.

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