Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Electrical Supplies
  4. /
  5. Circuit Protection

Circuit Protection (3,500+ items) - Page 4

Eaton Circuit Breaker, CH Series, 20A, 1 Pole, 120/240V AC, 10kA CHF120
EATON CH Standard Plug In Circuit Breaker
6 results
table view View Items
Square D Load Center, HOM, 100 to 125A, convertible main, single phase Phase HOM4RK2LA
Square D

Load Center, HOM, 100 to 125A, convertible main, single phase Phase

Zoro # G100905264
Mfr # HOM4RK2LA
product price:  $14.19
/ea
Square D Ground Bar Kit, Square D QO, HOM, NQOD and NF Panelboards, 225A PK18GTA
Square D

Ground Bar Kit, Square D QO, HOM, NQOD and NF Panelboards, 225A

Zoro # G0539296
Mfr # PK18GTA
product price:  $15.20
/ea
Square D Load center accessory, QO/Homeline, lug kit, neutral, 125A, AWG 14-2/0, aluminum or copper LK125AN
Square D

Load center accessory, QO/Homeline, lug kit, neutral, 125A, AWG 14-2/0, aluminum or copper

Zoro # G3156651
Mfr # LK125AN
product price:  $17.87
/ea
Square D Load center accessory, QO/Homeline, main lug kit, 150A to 225A, AWG 6-300 kcmil, field installable QOL225
Square D

Load center accessory, QO/Homeline, main lug kit, 150A to 225A, AWG 6-300 kcmil, field installable

Zoro # G0861080
Mfr # QOL225
product price:  $84.08
/ea
Square D Panelboard Directory Card 8003115801
Square D

Panelboard Directory Card

Zoro # G3510608
Mfr # 8003115801
product price:  $7.99
/ea
Sold in mult. of 2 for $15.98
Square D Handle Padlock Attachment, Square D QOU Circuit Breakers, 125A, 2, 3 Poles QOU1PL
Square D

Handle Padlock Attachment, Square D QOU Circuit Breakers, 125A, 2, 3 Poles

Zoro # G6165537
Mfr # QOU1PL
product price:  $6.99
/ea
Square D Replacement cover, Homeline, for 30 space load center, combination flush and surface, gray HOMC30UC
Square D

Replacement cover, Homeline, for 30 space load center, combination flush and surface, gray

Zoro # G3308773
Mfr # HOMC30UC
product price:  $118.99
/ea
Square D Filler Plate, Square D QO Load Centers, 125A QOM1FP
Square D

Filler Plate, Square D QO Load Centers, 125A

Zoro # G3381506
Mfr # QOM1FP
product price:  $16.59
/ea
Square D Trim Clamps, Square D NQOD Panelboards, 400A/600A LP9501
Square D

Trim Clamps, Square D NQOD Panelboards, 400A/600A

Zoro # G3316065
Mfr # LP9501
product price:  $27.55
/ea
Square D Mechanical Lug, Powerpact(R) J Frame Circuit Breakers Use With, 600V AC, 250A AL250JD
Square D

Mechanical Lug, Powerpact(R) J Frame Circuit Breakers Use With, 600V AC, 250A

Zoro # G2444242
Mfr # AL250JD
product price:  $86.69
/pk 3, $28.90/ea
Siemens Handle Padlock Attachment, Siemens QP, BL, QAF2, QPF, QE, QT-Triplex & Quadplex, BQ, BQXD, 2 Poles ECPLD2
Siemens

Handle Padlock Attachment, Siemens QP, BL, QAF2, QPF, QE, QT-Triplex & Quadplex, BQ, BQXD, 2 Poles

Zoro # G3277276
Mfr # ECPLD2
product price:  $10.39
/ea
Sold in mult. of 3 for $31.17
Ge Ground Bar Kit, Pro-Stock A-Series Panelboards, 400A TGL20
Ge

Ground Bar Kit, Pro-Stock A-Series Panelboards, 400A

Zoro # G2205066
Mfr # TGL20
product price:  $12.49
/ea
Square D Mounting Base, Square D QO, QO GFI and QO EPD Circuit Breakers Use With, 120/240V AC, 70A QON24L70
Square D

Mounting Base, Square D QO, QO GFI and QO EPD Circuit Breakers Use With, 120/240V AC, 70A

Zoro # G1206931
Mfr # QON24L70
product price:  $50.15
/ea
Square D Load Center Lock Kit PK3FL
Square D

Load Center Lock Kit

Zoro # G0478409
Mfr # PK3FL
product price:  $75.19
/ea
Ge Ground Bar Kit, PowerMark Gold and Plus Load Centers, 125A TGK12
Ge

Ground Bar Kit, PowerMark Gold and Plus Load Centers, 125A

Zoro # G8511036
Mfr # TGK12
product price:  $15.99
/ea
Square D Load Center, QO, 60 Spaces, 200A, 120/240V AC, Convertible Main Circuit Breaker, 1 Phase QO160M200PC
CAD Files Available
Square D

Load Center, QO, 60 Spaces, 200A, 120/240V AC, Convertible Main Circuit Breaker, 1 Phase

Zoro # G6179171
Mfr # QO160M200PC
product price:  $521.99
/ea
Square D Mounting Kit, Square D QOB Circuit Breakers, 6 Poles SK5668
Square D

Mounting Kit, Square D QOB Circuit Breakers, 6 Poles

Zoro # G7538237
Mfr # SK5668
product price:  $110.99
/ea
Square D Load Center, QO, 30 Spaces, 200A, 120/240V AC, Convertible Main Lug, 1 Phase QO130L200PGC
CAD Files Available
Square D

Load Center, QO, 30 Spaces, 200A, 120/240V AC, Convertible Main Lug, 1 Phase

Zoro # G200489695
Mfr # QO130L200PGC
product price:  $188.99
/ea
Stopout Circuit Breaker Lockout, Flip-Lever Switches, Large Handle Circuit Breakers, 277/480/600V AC KDD280
Stopout

Circuit Breaker Lockout, Flip-Lever Switches, Large Handle Circuit Breakers, 277/480/600V AC

Zoro # G1736657
Mfr # KDD280
product price:  $10.79
/ea
Square D Electric Joint Compound PJC7201
Square D

Electric Joint Compound

Zoro # G0567695
Mfr # PJC7201
product price:  $24.59
/ea
Current Circuit Breaker, THQP Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQP250
CURRENT THQP Standard Plug In Circuit Breaker
9 results
table view View Items
Square D Auxiliary Switch, PowerPact(R) H and J Circuit Breakers, 6A, 0 Poles S29450
Square D

Auxiliary Switch, PowerPact(R) H and J Circuit Breakers, 6A, 0 Poles

Zoro # G2805214
Mfr # S29450
product price:  $214.99
/ea
Square D Load Center, 8 Spaces, 100A Amps, 120/240V AC QO816L100RB
CAD Files Available
Square D

Load Center, 8 Spaces, 100A Amps, 120/240V AC

Zoro # G1815642
Mfr # QO816L100RB
product price:  $134.99
/ea
Square D Load Center, QO, 40 Spaces, 200A, 120/240V AC, Main Circuit Breaker, 1 Phase QO140M200PC
CAD Files Available
Square D

Load Center, QO, 40 Spaces, 200A, 120/240V AC, Main Circuit Breaker, 1 Phase

Zoro # G400489723
Mfr # QO140M200PC
product price:  $421.99
/ea
Square D Load Center, 42 Spaces, 225A Amps, 120/240V AC QO342L225G
CAD Files Available
Square D

Load Center, 42 Spaces, 225A Amps, 120/240V AC

Zoro # G3211284
Mfr # QO342L225G
product price:  $522.99
/ea
Square D Cover, Square D NF Panelboards Use With, 250A, 54 Spaces NC50S
Square D

Cover, Square D NF Panelboards Use With, 250A, 54 Spaces

Zoro # G7188711
Mfr # NC50S
product price:  $286.99
/ea
Eaton Br Hold-Down Kit BRPHD
Eaton

Br Hold-Down Kit

Zoro # G712415144
Mfr # BRPHD
product price:  $15.59
/ea
Ge Retainer, PowerMark Gold and Plus THQL Series Circuit Breaker, 225A THQLRK2
Ge

Retainer, PowerMark Gold and Plus THQL Series Circuit Breaker, 225A

Zoro # G8511133
Mfr # THQLRK2
product price:  $8.59
/ea
Square D Handle Tie Kit, 120/240V AC, 1 Poles QO3HT
Square D

Handle Tie Kit, 120/240V AC, 1 Poles

Zoro # G3155909
Mfr # QO3HT
product price:  $16.65
/ea
Square D Panelboard Vault Lock PK4NVL
Square D

Panelboard Vault Lock

Zoro # G0570757
Mfr # PK4NVL
product price:  $140.99
/ea
Square D Mounting Base, QO plug on circuit breakers Use With, 120/240V AC, 60A QON403L60N
Square D

Mounting Base, QO plug on circuit breakers Use With, 120/240V AC, 60A

Zoro # G0478250
Mfr # QON403L60N
product price:  $49.99
/ea
Square D Load Center, QO, 32 Spaces, 125A, 120/240V AC, Main Circuit Breaker, 1 Phase QO132M125P
CAD Files Available
Square D

Load Center, QO, 32 Spaces, 125A, 120/240V AC, Main Circuit Breaker, 1 Phase

Zoro # G600489707
Mfr # QO132M125P
product price:  $255.99
/ea
Square D Load Center, 6 Spaces, 100A Amps, 120/240V AC HOM612L100S
CAD Files Available
Square D

Load Center, 6 Spaces, 100A Amps, 120/240V AC

Zoro # G0880512
Mfr # HOM612L100S
product price:  $38.99
/ea
Carling Technologies Circuit Breaker, B Series, 30A, 2 Pole, 277V AC, 1.5kA at 240V AC, C Curve BA2-BO-34-630-111-C
CARLING TECHNOLOGIES B Magnetic Bolt On Circuit Breaker
12 results
table view View Items
Square D Panelboard Interior, EDB, EDG, EDJ, 18 Spaces, 125A, 277/480V, Convertible Main Lug, 3 Phase NF418L1
CAD Files Available
Square D

Panelboard Interior, EDB, EDG, EDJ, 18 Spaces, 125A, 277/480V, Convertible Main Lug, 3 Phase

Zoro # G1070246
Mfr # NF418L1
product price:  $1,214.64
/ea
Circuit Protection (3,500+ items) - Page 4
  • First
  • Previous
  • 4
    of 108 pages
  • Next
  • Last
How was your search?

About Circuit Protection

At Zoro, we pride ourselves on offering a broad selection of top-grade Panelboards and Load Centers. These essential electrical components are meticulously designed to distribute and manage power in residential, commercial, and industrial settings. Our product line includes a variety of load centers, such as main breaker load centers, main lug load centers, sub-panel load centers, and different types of panel boards, including lighting panel boards and power distribution panel boards.

A Wide Array of Load Centers & Fuses

Our collection comprises diverse types of electrical load centers tailored to meet the unique needs of various industries. From simple household applications to complex industrial processes, our offerings include single-phase load centers for residential and three-phase load centers for commercial or industrial uses. Moreover, we also provide an array of load center fuses designed to protect your electrical circuits from overloads and short circuits.

Quality Panel Boards

We understand that a high-quality panel board is the backbone of any reliable electrical system. Hence, we offer an extensive range of robustly constructed electrical panel boards suitable for surface and flush mounting (panel board wall). Our selection ranges from small circuit breaker panels ideal for home use to large-scale switchgear panels designed for heavy-duty industrial applications.

How Are Load Centers & Panel Boards Made?

The manufacturing process for our panelboards and load centers involves careful planning and precise engineering. High-quality metal casings are typically used to house these units due to their durability and resistance against environmental factors. Inside these casings are circuit breakers or fuses attached to bus bars, facilitating electricity distribution across various circuits.

Tips on Using Load Centers & Panel Boards

While installing or using our panel boards and load centers, safety should always be your top priority. Ensure that a qualified professional performs all electrical work. Always turn off the main power supply before performing maintenance or installation. Lastly, regularly inspect your load center and panel board for signs of wear and tear to prevent potential issues.

Find the Load Centers and Panel Boards You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of electrical supplies, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time. Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Industrial Electrical Controls & AutomationCable Management & ConduitElectrical ConnectorsWiring DevicesFuses & Accessories
Electrical Boxes & CoversWire & CablePower Quality & DistributionElectrical Enclosures, Wireways & CoversElectrical Replacement Parts
square d nf panelideal circuit tracer kitcircuit breaker handletype ch breakerqo breaker panel
carling breakerssiemens 200 amp panelcircuit breakers &90 amp breakersquare d nf panelboard

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc