- Log In
  
  User Name
  
  Password
  
  Remember Me
  
  Forgot Password?
- Register

Home
Services and Solutions
Services
Brands
Promotions
Locations
About Us
Careers
Log In

Products

Adhesives, Chemicals & Lubricants Conduit, Raceway & Cable Support Control & Automation Rockwell Automation Data & Communication Electric Vehicle Charging Electrical Fittings Electrical Boxes & Covers Electric Utility & Outside Plant Products Enclosures Fasteners & Hardware Heat, Ventilation & Builder Products Lighting Office & Packaging Supplies Power Distribution Power Sources & Motors Safety Products Solar Products Tools & Instruments Welding & Soldering Wire Termination & Supplies Wire, Cords & Cables Wiring Devices

Adhesives, Chemicals & Lubricants

Adhesives

Anti-Oxidant Joint Compound

Duct Seal Compounds

Electrical Sealing Compounds

Fire Barrier Sealants and Foam

Gasket Sealants

View All

Chemicals

Anti-Seize

Cleaners & Degreasers

Corrosion Inhibitors

Insecticides

Insulating Foam

View All

Cleaning Supplies

Paper Products

Rags

Oils & Lubricants

Lubricants

Oils

Paints & Coating

Coating

Masking Products

Paints

Tape & Pads

Corrosion Protection Tapes

Duct Tapes

Electrical Color Code Tapes

Hook and Loop Tapes

Marking Tapes

View All

Conduit, Raceway & Cable Support

Cable Tray & Accessories

Cable Tray

Cable Tray Ladders

Cable Tray Fittings & Accessories

Conduit

Metallic Conduit

Non-Metallic Conduit

Raceway Systems

Overfloor

Raceway Pre-Wired

Surface Raceway

Strut & Accessories

Single-Sided Strut

Double-Sided Strut

Strut Fittings & Accessories

Angles

Fittings & Brackets

View All

Wireways, Fittings & Accessories

Wireways

Wireway Fittings & Accessories

Wiring Ducts, Fittings & Accessories

Wiring Ducts

Wiring Duct Fittings & Accessories

Extrusions

Hardware

Panels and Panel Hardware

Control & Automation

Alarms & Signaling

Alarms

Beacons

Combination Light & Sound Devices

Door Holders

Doorbells & Chime Kits

View All

Automation Control Connectivity Devices

Bridges

Control System Cable & Connector Accessories

Control System Connection Cables

Control System Passive Distribution Boxes

Control System Receptacles

View All

Contactors & Starters

Contactors

Drive Accessories

Brake Resistors

Drive Miscellaneous Parts & Accessories

Line and Load Reactors

Line Filters

Motor Drive Keypads & Accessories

Drives

AC Drives

DC Drives

Servo Drives

Machine Safety

Light Curtains

Safety Control Modules

Safety Switches

Motor Controls & Accessories

Contactors & Starters

Encoders

Encoders Parts & Accessories

Linear Actuators

Motor Control Parts & Accessories

View All

Passive & Active Devices

Thyristors

Pilot Devices

Contact Blocks

Emergency Stop Devices

Indicator Pilot Lights

Joystick Operators

Legend Plates

View All

PLCs & HMI

HMI

PLC

Software

Training & Manuals

Relay & Timers

Relays

Timers

Sensors & Switches

Sensors

Switches

Terminal Blocks & Connectors

Din Rail Terminal Blocks

Panel Mount Terminal Blocks

PCB Pluggable Connectors

PCB Terminal Blocks

Terminal Block Accessories

Signal Conditioners

RTD Signal Conditioners

Signal Isolators & Converters

Rockwell Automation

Cordsets & Field Attachables

Cordsets

Field Attachables

Junctions & Splitters

Miscellaneous Accessories

Raw Cable Spools

View All

Drives

Architecture Class Drives

Component Class Drives

DC Drives

Drive Communications

Drive Input - Line Reactors

View All

Encompass Partners

Prosoft

Spectrum

Graphic Terminals

MobileView

Panel View Plus 6

Panel View Plus 7

PanelView 5000

PanelView Legacy Products

Industrial Computers and Monitors

Industrial Computer Accessories

Industrial Monitors

Integrated Display Computers

Non-Display Computers

Industrial Controls

Contactors

Control Circuit & Load Protection

Lighting Control

Motor Control, IEC

Motor Control, NEMA

View All

Industrial Sensors & Sensor Accessories

Accelerometers

Current Probes

Float Switches

Flow Sensors

Limit Switches & Accessories

View All

Motion Controls

Cables & Connectors

Encoders

Linear Mtr/Actuator

Servo Drives

Servo Motors & Actuators

View All

Motors & Accessories

AC Motors

Networks & Communications

Bridge

Cables

ControlNet

Data Highway Plus

DeviceNet

View All

Peripherals

PLC's, DeviceNet, & I/O

ArmorPoint

CompactLogix

ControlLogix

DeviceNet

Flex Devices

View All

PowerMonitor

PowerMonitor Devices

PowerMonitor Accessories

Safety Components

Presence Sensing Safety Devices

Safety Contactors & Relays

Safety Switches

Services

Remote Support Services

Training Services

Software & Support

Asset Management Software

Automation Software

Computer Based Training

HMI & Visualization

Information Software

View All

Data & Communication

Audio & Video Systems

A/V Receivers

Audio & Video System Accessories

Distribution Modules

Speaker Accessories

Speakers

View All

Copper Connectivity

A/V Connectors

Connector Components & Accessories

Cross-Connect System

Input/output Connectors

Modular & Ethernet Connectors

View All

Faceplates & Boxes

Accessories

Faceplates

Surface Mount Boxes

Wall Outlets

Fiber Optic Connectivity

Fiber Optic Accessories

Fiber Optic Adapter Panels

Fiber Optic Adapters

Fiber Optic Connectors

Fiber Optic Fault Locator

View All

Networking Hardware

Modems & Gateways

Network Interface Cards

Wired Networking

Wireless Networking

Racks, Enclosures & Cable Management

Cable Management Panel Accessories

Cable Management Panels

Data Cable Support Systems

Enclosure & Cabinet Accessories

Fiber Optic Enclosures

View All

Electric Vehicle Charging

Electric Vehicle Chargers

Electric Vehicle Charger Accessories

Electrical Fittings

Adapters

ENT Adapters

PVC Adapters

Bulkhead Fittings

Bushings

Rigid Conduit Bushings

Grounding Bushings

EMT Conduit Bushings

PVC Bushings

PVC Coated Bushings

View All

Caps & Plugs

PVC Caps

PVC Plugs

Clamps, Hangers, Straps & Supports

Beam Clamps

Cable/Conduit Seals

Conduit Clips & Clamps

Conduit Spacers

Conduit Supports

View All

Combination Fittings

EMT Combination Fittings

Rigid Combination Fittings

EMT To Flex. Combination Fittings

EMT To Liquid Tight Combination Fit

EMT To Rigid Combination Fittings

View All

Concrete Inserts & Sleeves

Conduit Bodies, Covers & Gaskets

Metallic Conduit Bodies, Covers & Gaskets

PVC Conduit Bodies, Covers & Gaskets

PVC-Coated Conduit Bodies, Covers & Gaskets

Conduit Hubs

Rigid Conduit Hubs

PVC Coated Rigid Conduit Hubs

Conduit Locknuts

Conduit Plugs

Conduit Unions

Conduit Washers

Reducing Washers

Sealing Washers

Connectors

EMT Connectors

Flexible Metallic Conduit (FMC) Connectors

Flexible Non-Metallic Conduit (FNMC) Connectors

Liquidtight Connectors

Metal-Clad Armored Cable (AC/MC) Connectors

View All

Cable Grips / Cord Connectors

Strain Relief Grips

Support Grips

Cord Connectors - Metallic

Cord Connectors - Non-Metallic

Cable Grip / Cord Connector Accessories

Couplings

EMT Couplings

ENT Couplings

Flexible Metallic Conduit Couplings

PVC Couplings

PVC Coated Couplings

View All

Elbows

EMT Elbows

Rigid Elbows

PVC Elbows

PVC Coated Elbows

End Bells

Expansion Fittings

EMT Expansion Fittings

Rigid Expansion Fittings

PVC Expansion Fittings

Hazardous Location Fittings

Cable & Cord Fittings

Cable Glands

Capped Pulling Elbows

Conduit Adapters

Conduit Couplings

View All

Knockout Seals & Plugs

Nipples / Offsets

Closed Nipples

Straight Nipples

EMT Nipples

Chase Nipples

Offset Nipples

View All

Service Entrance Fittings

Service Entrance Caps

Wireholders

Electrical Boxes & Covers

FS / FD Boxes & Covers

Metallic FS / FD Boxes

Non-Metallic FS / FD Boxes

Non-Metallic FS / FD Box Covers

PVC Coated FS / FD Boxes

Communication & Low Voltage

Electrical Box Extension & Brackets

Electrical Box Brackets

Electrical Box Extensions

Electrical Box Partitions

Fire Rated Poke Through Boxes

Floor Boxes, Covers & Carpet Flanges

Floor Boxes

Floor Box Covers

Flanges

Floor Box Accessories

Junction Boxes & Covers

Junction Boxes

Junction Box Covers & Accessories

Masonry / Concrete Boxes

Octagon/Round Boxes & Covers

Metallic Octagon Boxes

Metallic Round Boxes

Metallic Round/Octagon Covers

Non-Metallic Round Boxes

Non-Metallic Round/Octagon Covers

Outlet/Switch Boxes & Covers

Metallic Outlet/Switch Boxes

Metallic Outlet/Switch Covers

Non-Metallic Outlet/Switch Boxes

Non-Metallic Outlet/Switch Covers

Square Boxes & Covers

4-11/16" Square Boxes

4-11/16" Square Surface Covers

4" Square Boxes

4" Square Surface Covers

Siding Boxes

TV / Specialty Boxes

Utility Enclosures & Covers

Utility Enclosures

Utility Enclosure Covers

Vaportight / Airtight Boxes

Weatherproof Boxes, Covers, & Accessories

Weatherproof Boxes

Weatherproof Covers

Weatherproof Accessories

Box Hardware & Accessories

Gaskets

Hangers

Spacers & Shims

Supports

Electric Utility & Outside Plant Products

Automation & Protection

Capacitor Controls

Substation Products

Connectors

End Bells

Utility Anchors

Anchor Accessories

Rock Anchors

Utility Connectors

Distribution/Transmission

Grounding Products

Utility Elbows

Load Break Elbows

Utility Hardware

Coupling Hardware

Transmission Hardware

Utility Fasteners

Wireholders

Utility Insulators

Specialty Insulators

Standoff & Bus Support Insulators

Utility Tools

Lineman Grade Tools

Enclosures

Circuit Breaker Enclosures

Covers, Backplates & Accessories

Current Transformer Cabinets

Disconnect Type Enclosures

Metallic

Door Stop Kits

Electrical Console & Consolet Enclosure

Enclosure Data Pockets

Enclosure Panels

Explosion-Proof Enclosures

Metallic

Floor Mount Enclosures

Metallic

Latch-Lock & Handles

Pilot Device Enclosures

Metallic

Non-Metallic

Telephone Cabinets

Thermal Management

Coolers & Air Conditioners

Enclosure Heaters

Fan Parts & Accessories

Filter Fans

Underground Enclosures & Boxes

Non-Metallic

Wall Mount Enclosures

Metallic

Non-Metallic

Metering Cabinets

Pull Boxes

Splitter Troughs

Fasteners & Hardware

Assortment Kits

Anchor Kit

Bolt, Screw & Stud Kit

Nut & Washer Kit

Chain, Cable, Rope & Accessories

Chains

Fittings & Accessories

Ropes

Tie Wires

Tie-Down Straps

View All

Fasteners

Bolts, Screws & Studs

Nuts & Washers

Hardware

Anchors

Braces and Brackets

Nail Plates

O-Rings

Springs

View All

Miscellaneous Fasteners

Spring Steel Fasteners

Staples

PVF (Pipes, Valves, Fittings)

Fittings

Pipe Support

Valves

Heat, Ventilation & Builder Products

Air Circulators

Air Conditioner Parts & Accessories

Air Conditioners

Axial Fans

Blowers, Motors & Accessories

Ceiling Fans

View All

Central Vacuum Systems

Inlets & Fittings

Controls & Thermostats

Fan Controls & Switches

Non-Programmable Thermostats

Programmable Thermostats

Doorbells & Chime Kits

Ducting & Venting

Roof Flashings

Electric Heating

Convection Heaters

Fan Forced Heaters

Floor Warming

Heater Parts & Accessories

Ice & Snow Melting

View All

Exhaust & Ventilation

Bathroom Fan

Housing & Grill Assembly

Ventilation Fan Accessories

Lighting

Ballasts, Starters & Capacitors

Capacitors

Fluorescent Ballasts

HID Ballasts

Lamp Starters

LED Drivers

Fixtures

Emergency Lighting & Exit Signs

Hazardous Location & Vapor Tight Fixtures

Indoor Lighting Fixtures

Outdoor Lighting Fixtures

Hanging Chains & Stems

View All

Flashlights & Multi-Location Lights

Flashlights & Multi-Location Light Accessories

Handheld Flashlights

Headlamps

Work Lights

Lamps

Compact Fluorescent Lamp (CFL)

Fluorescent Tubes

Halogen Bulbs

HID Bulbs

Incandescent Bulbs

View All

Lighting Controls & Accessories

Dimming Modules

Interface Modules

Lighting Control Panels

Lighting Control Switches

Load Controllers

View All

Office & Packaging Supplies

Decor

Furniture

Office Supplies

Computer Equipment

Markers

Staplers

Power Distribution

Busway & Accessories

Busway Tap Off Units

Circuit Breakers

Low Voltage Power Circuit Breakers

Medium Voltage Power Circuit Breakers

Miniature Circuit Breakers

Molded Case Circuit Breakers

Residential Circuit Breakers

View All

Disconnect & Safety Switches

Fusible Safety Switches

Non-Fusible Safety Switches

Safety Switch Accessories

Transfer Switches

Fuses

Automotive Fuses

British & IEC Fuses

Current-Limiting Fuses

Dummy Fuses

Fuse Accessories

View All

Grounding & Bonding Products

Busbars

Busbar Spacers & Accessories

Flexible Braid Connectors

Ground Rods

Ground/Neutral Bars

View All

Load Centers

Load Center Accessories

Load Center Interiors

Pool & Spa Panel

Single Phase Convertible Load Centers

Single Phase Main Breaker Load Centers

View All

Metering

Metering Sockets

Meters

Terminal/Tap Boxes

Meter Parts & Accessories

Panelboards & Accessories

Main Breaker Kits

Main Lug Kits

Panelboard Enclosures

Panelboard Interiors

Panelboard Parts & Accessories

View All

Surge Protection

Circuit Breaker SPD

External Load Center SPD

Temporary Power

Unmetered Power Outlet Panels

Terminal Blocks, Taps & Strips

Terminal Block Accessories

Terminal Block Marker

Terminal Blocks

Terminal Strips

Transformers

Buck Boost Transformers

Constant Voltage Transformers

Control Power Transformers

Current Transformers

Encapsulated Transformers

View All

Power Sources & Motors

Batteries & Chargers

Battery Accessories

Non-Rechargeable Batteries

Rechargeable Batteries

Generators & Accessories

Standby Generators

Motors & Accessories

Motor Accessories

Motors

Power Supplies

DC Power Supplies

Uninterruptible Power Supplies

Safety Products

Coolers, Tumblers & Hydration

Coolers & Accessories

Bottled Water & Sports Drinks

Drink Tumblers

Electrical Safety

Insulating Blankets

Fire Safety

Alarms and Suppression Systems

CO & Smoke Combination Alarms

Fire Barriers

Lockout/Tagout

Breaker Lockouts

Plug Lockouts

Switch Lockouts

Lockout Hasps

Lockout Kits

View All

Machine Safety

Safety Edges

Safety Mat Trim Kits

Safety Mats

Personal Protective Equipment

Ergonomic Support Aids

Eye Protection & Accessories

Fall Protection

Gloves & Hand Protection

Hard Hats & Head Protection

View All

Safety Apparel

Flame Resistant & Arc Flash Clothing

High-Visibility Clothing

Protective Cooling

Rainwear Clothing

Workwear

Safety Signs & Labels

Applicators

Label Printers

Labels and Markers

Name Plates

Signs and Tags

Traffic Control Products

Barriers and Safety Tapes

Solar Products

Balance of Systems

Combiner Box

Surge Protection

System Monitoring

Flashings

Inverters

Accessories

Microinverters

Optimizer

Single Phase

Three Phase

Off Grid

Communication

PV Modules

60-Cell Modules

Racking

Ballasted

Clamp

Grounding

Ground Mounts

Hardware

View All

Tools

MC4 Tools

Tools & Instruments

Abrasives

Abrasive Wheels

Brushes

Handheld Brushes

Cleaning Tools

Vacuum Cleaners

Dispensing Tools

Sprayers

Fish Tapes & Conduit Tools

Conduit Bender Accessories

Conduit Heaters

Fish & Glow Rods

Fish Tape Accessories

Fish Tapes

View All

Hand Tools

Automotive Specialty

Cable Tie Tools

Caulking Gun

Clamps

Communication Connector Tools

View All

Ladders, Platforms and Scaffolding

Ladders

Power Tools & Attachments

Attachments

Corded Power Tools

Cordless Power Tools

Hydraulic Tools

Pneumatic Tools

View All

Storage & Material Handling

Casters & Wheels

Lifting & Rigging

Manual Handling

Material Lifting

Storage

View All

Testing Instruments

Circuit Tracers

Clamp Meters

Digital Panel Meters

Distance Meters

Equipment Cases

View All

Tool Kits & Reference Manuals

Tool Kits

Workholding

Clamping Hardware

Welding & Soldering

Exothermic Welding

Controllers

Welding Accessories

Welding Cable Connectors, Grounds, & Accessories

Cable Lugs

Ground Clamps

Welding Consumables

Weld Materials

Welding Helmets & Welding Protection

Welding Helmet Accessories

Welding Supplies

Flint Ignitors

Welding Links & Clamps

Wire Termination & Supplies

Bundling & Securing

Cable Clips, Clamps & Straps

Cable Hooks, Hangers & Stackers

Cable Staples

Cable Ties

Cable Tie Mounting Bases

View All

Cold & Heat Shrink

Cold Shrink

Cold Shrink Adapter Kit

End Caps

Heat Shrink Boots

Heat Shrink Kits

View All

Grounding Products

Grounding Bridges

Grounding Grid Connectors

Lugs & Connectors

Compression Lugs

Compression Sleeves

Insulation Piercing Connectors

Mechanical Lugs

Multi-Tap Connectors

View All

Marking & Labeling

Heat Shrink Wire Markers

Label Printer Accessories

Label Printers

Printer Label Cartridges

Wire Marker Dispensers

View All

Small Crimp & Wire Connectors

Bullet Splices

Butt Connectors

Crimp Connectors

Disconnects

Ferrules

View All

Splicing & Terminating Kits

Resin Splices

Splice Kits

Welded Connections

Molds - Cable to Cable

Molds - Cable to Ground

Wire, Cords & Cables

Aluminum Building Wires & Cables

ASC Aluminum Stranded Conductor

SER Service Entrance Cables

XHHW

Copper Building Wires & Cables

Bare Copper Wire

NM Non-Metallic Sheathed Cables

RHH/RHW/USE Underground Service Entrance Cables

TFFN/TFN

THHN

View All

DataComm & Low Voltage Cable

Thermostat Wires

Voice, Data & Video Cables

Extension Cords, Cord Reels & Portable Boxes

Appliance / Power Supply Cords

Cord Reels

In-Line GFCI Cords

Flexible & Portable Cords

SEO/SEOW/SEOOW Portable Cord - 600V Thermoplastic Elastomer Jacket

SJEO/SJEOW/SJEOOW Portable Cord - 300V Thermoplastic Elastomer Jacket

SJO/SJOW/SJOOW Portable Cord - 300V Thermoset Rubber Jacket

SJT/SJTW/SJTO/SJTOW/SJTOOW Portable Cord - 300V Thermoplastic Jacket

SO/SOW/SOOW Portable Cord - 600V Thermoset Rubber Jacket

Medium Voltage Cables

Metal Clad & Armored Cables

Aluminum MC Cables

Fire Alarm MC Cables

HCFC Health Care Facilities MC Cables

PCS Power & Control/Signal MC Cables

Steel MC Cables

View All

Wiring Devices

Combination Devices

Receptacle / Light

Receptacle / Receptacle

Switch / Light

Switch / Receptacle

Switch / Sensor

View All

Daylighting Controls

Ceiling Mount

Fixture Mount

Recessed Mount

Wall Mount

Occupancy & Vacancy Sensors

Box Mount

Ceiling Mount

Wall Mount

Wireless Sensors

Accessories

Plugs & Connectors

Flanged Devices

Pin & Sleeve Devices

Single Pole Devices

Straight Blade Devices

Twist Lock Devices

View All

Power Strips & Multi-Outlet Converters

Converters & Adapters

Power Strips

Surge Protective Devices

Receptacles

GFCI & AFCI

Pin & Sleeve

Receptacle & Switch Wiring Modules

Receptacle Accessories

Single Pole Female Receptacles

View All

Switches

Appliance Switches

Nightlights

Wall Switches

Wall & Switch Plates

Aluminum Wall Plates

Metal Wall Plates

Nylon/Plastic Wall Plates

Stainless Steel Wall Plates

Weatherproof / Dustproof Wall Plates

View All
Services
Brands
Promotions
Locations
About Us
Careers

Manage Cookies

We use essential cookies to make our site work. With your consent, we may also use non-essential cookies to improve user experience and analyze website traffic. By clicking “Accept All,” you agree to our website's cookie use as described in our Cookie Policy, or you can modify your preferences before proceeding.

Necessary Analytics Preferences Marketing

Current-Limiting Fuses

Filters (1)

Categories

< Return to Fuses
Current-Limiting Fuses (1)

More Filters

50 Amp (1)
0.187 Amp (1)
0.5 Amp (1)
3 Amp (1)
10 Amp (1)
15 Amp (1)
20 Amp (1)
30 Amp (1)

1 Products found 1 of 1

Results per page

Amperage: 50 Amp

Product image for Mersen A4J50 50 Amp 600 Volt Class J Current Limiting Protection Fuse

Mersen A4J50 50 Amp 600 Volt Class J Current Limiting Protection Fuse

Manufacturer: Mersen

Catalog #: A4J50

Codale Part #: 2365987

$75.65/ea

ea

Compare

1 Products found 1 of 1

Results per page

Compare

Customer Tools

CONTACT US
800-300-6634
FAQ
SHIPPING & RETURN POLICY
EMAIL SIGN UP
Manage Cookies

Company Info

Careers
About
Terms & Conditions
Privacy Policy

Social

Rockwell Authorized Service Provider

Rockwell Authorized Service Provider