Mersen - Steven Engineering

Main Menu

Products
Services
Product Resources
Blog
Company
Contact
Shop Now
Request Access
Login
Terms & Conditions
Legal
Privacy

Sales & Support: (800) 258-9200

Cart Items (0)

Subtotal:

$0.00

Sign In
Registration

Products
Services
Product Resources
Blog
Company

Please enter at least 3 characters for search.

Clear

Search Within Results

Please enter at least 3 characters for search.

In-Stock

Mersen

Class J - A4J Series (67)
Class J - AJT Series (37)
Class J - HSJ Series (68)

Filters

Amperage

Class

CC (149)
G (54)
H (123)
H, K (85)
J (104)
K5 (81)
L (92)
Midget (176)
R (91)
RK1 (63)
RK5 (182)
T (167)

Connector Type

Box (26)
Pressure Plate (9)
Screw (2)

Fuse Type

Fast-Acting (30)
High Speed (31)

Indicating

Yes (75)
No (104)

SHOW MORE...

Amperage

Class

CC (149)
G (54)
H (123)
H, K (85)
J (104)
K5 (81)
L (92)
Midget (176)
R (91)
RK1 (63)
RK5 (182)
T (167)

Connector Type

Box (26)
Pressure Plate (9)
Screw (2)

Fuse Type

Fast-Acting (30)
High Speed (31)

Indicating

Yes (75)
No (104)

Mounting

Blade - Bolt-On (34)
DIN Rail (6)
Ferrule (27)
Panel (31)

Number of Poles

1 (14)
2 (7)
3 (15)
Adder Block (1)

Voltage (DC)

300VDC (30)
500VDC (31)
600VDC (37)

SHOW LESS...

Home
Circuit Protection
Fuses
General Purpose
Class: J
Indicating: No
Mersen

Showing Items 46 - 60 of 98

Show:

View:

Previous
1
2
3
4
5
6
7
Next

Mersen Class J Fast-Acting Fuse; 40A; 600VAC/300VDC

$626.46 / Each

Item Number: A4J40

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 400A; 600VAC/300VDC

$364.31 / Each

Item Number: A4J400

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 45A; 600VAC/300VDC

$677.23 / Each

Item Number: A4J45

Avail. Qty: 0

NCNR

Quantity:

Mersen Class J Fast-Acting Fuse; 450A; 600VAC/300VDC

$615.66 / Each

Item Number: A4J450

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 50A; 600VAC/300VDC

$626.46 / Each

Item Number: A4J50

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 500A; 600VAC/300VDC; Indicating

$619.63 / Each

Item Number: A4J500

Avail. Qty: 0

NCNR

Quantity:

Mersen Class J Fast-Acting Fuse; 6A; 600VAC/300VDC

$408.15 / Each

Item Number: A4J6

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 60A; 600VAC/300VDC

$579.08 / Each

Item Number: A4J60

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 600A; 600VAC/300VDC

$515.37 / Each

Item Number: A4J600

Avail. Qty: 0

NCNR

Quantity:

Mersen Class J Fast-Acting Fuse; 70A; 600VAC/300VDC

$510.62 / Each

Item Number: A4J70

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 75A; 600VAC/300VDC

$551.39 / Each

Item Number: A4J75

Avail. Qty: 0

Quantity:

Mersen Class J Fast-Acting Fuse; 80A; 600VAC/300VDC

$542.00 / Each

Item Number: A4J80

Avail. Qty: 0

NCNR

Quantity:

Mersen Class J Fast-Acting Fuse; 90A; 600VAC/300VDC

$538.08 / Each

Item Number: A4J90

Avail. Qty: 0

Quantity:

Mersen Class J High Speed Fuse; 125A; 600VAC/500VDC

$219.06 / Each

Item Number: HSJ125

Avail. Qty: 0

Quantity:

Mersen Class J High Speed Fuse; 60A; 600VAC/500VDC

$530.77 / Each

Item Number: HSJ60

Avail. Qty: 0

Quantity:

Previous
1
2
3
4
5
6
7
Next

Contact | Terms & Conditions | Legal | Privacy

© 2026 Steven Engineering. All Rights Reserved.

We value your privacy

This website stores cookies on your computer. These cookies are used to improve your website experience and provide more personalized services to you, both on this website and through other media. To find out more about the cookies we use, see our Privacy Policy.

We won't track your information when you visit our site. But in order to comply with your preferences, we'll have to use just one tiny cookie so that you're not asked to make this choice again.

Your current cart will be cleared and replaced with these items. Do you want to continue?