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 Customer Service
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

Square D Lug Kit, Powerpact(R) H, J and L Frame Circuit Breakers Use With, 600V AC, 150A AL150HD
Square D

Lug Kit, Powerpact(R) H, J and L Frame Circuit Breakers Use With, 600V AC, 150A

Zoro # G2979566
Mfr # AL150HD
product price:  $63.89
/pk 3, $21.30/ea
Asi Circuit Breaker, NDB1L-32C Series, 20A, 2 Pole, 120V AC, 4.5kA, C Curve NDB1L-32C-20-120V
ASI NDB1L-32C Ground Fault Circuit Interrupter Surface Mount/DIN Rail Circuit Breaker
11 results
table view View Items
Siemens Miniature Circuit Breaker, Q Series, 20/20A, 1 Pole, 120/240V AC, 10kA at 120V AC Q2020
SIEMENS Q Duplex Plug In Miniature Circuit Breaker
3 results
table view View Items
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 Lug Kit, Homeline and QO Load Centers, 125A QOL125
Square D

Lug Kit, Homeline and QO Load Centers, 125A

Zoro # G2217424
Mfr # QOL125
product price:  $53.49
/ea
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 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
Eaton Br Handle Tie BRHT
Eaton

Br Handle Tie

Zoro # G512452134
Mfr # BRHT
product price:  $3.55
/ea
Sold in mult. of 3 for $10.65
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 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 Load Center, HOM, 6 Spaces, 100A, 120/240V AC, Main Lug, 1 Phase HOM612L100RB
CAD Files Available
Square D

Load Center, HOM, 6 Spaces, 100A, 120/240V AC, Main Lug, 1 Phase

Zoro # G1766597
Mfr # HOM612L100RB
product price:  $60.95
/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
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 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
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
Eaton Miniature Circuit Breaker, GHB Series, 30A, 3 Pole, 277/480V AC, 14kA at 277/480V AC GHB3030
EATON GHB Standard Bolt On Miniature Circuit Breaker
31 results
table view View Items
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 Panelboard Vault Lock PK4NVL
Square D

Panelboard Vault Lock

Zoro # G0570757
Mfr # PK4NVL
product price:  $140.99
/ea
Square D Load Center, 3 Spaces, 30A Amps, 120V QO35FM30TTS
Square D

Load Center, 3 Spaces, 30A Amps, 120V

Zoro # G0570879
Mfr # QO35FM30TTS
product price:  $73.39
/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
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
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 Load Center, 4 Spaces, 125A Amps, 240V QO148L125GS
Square D

Load Center, 4 Spaces, 125A Amps, 240V

Zoro # G0857075
Mfr # QO148L125GS
product price:  $85.99
/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
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 Load Center, 2 Spaces, 70A Amps, 120/240V AC QO24L70S
CAD Files Available
Square D

Load Center, 2 Spaces, 70A Amps, 120/240V AC

Zoro # G1515114
Mfr # QO24L70S
product price:  $44.79
/ea
Square D Lock Kit, Flush, 3.90inWx6.90inL PK6FL
Square D

Lock Kit, Flush, 3.90inWx6.90inL

Zoro # G2036246
Mfr # PK6FL
product price:  $75.19
/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
Square D Circuit Breaker Enclosure, QO, 2 Spaces, 125A, Main Lug, 1 Phase QO2125BNRB
CAD Files Available
Square D

Circuit Breaker Enclosure, QO, 2 Spaces, 125A, Main Lug, 1 Phase

Zoro # G3273767
Mfr # QO2125BNRB
product price:  $129.99
/ea
Eaton Circuit Breaker, BD Series, 15A, 1 Pole, 120V AC, 10kA BD1515
EATON BD Tandem Plug In Circuit Breaker
5 results
table view View Items
Ge Ground Bar Kit, Spec-Setter Safety Switch, 200A TGL1
Ge

Ground Bar Kit, Spec-Setter Safety Switch, 200A

Zoro # G8511081
Mfr # TGL1
product price:  $12.49
/ea
Siemens Locking Device, Siemens QP, BL, BQ, BQXD, 1 Poles ECQLD3
Siemens

Locking Device, Siemens QP, BL, BQ, BQXD, 1 Poles

Zoro # G2499646
Mfr # ECQLD3
product price:  $8.59
/ea
Square D Load Center, QO, 30 Spaces, 125A, 120/240V AC, PoN Convertible Main Lug, 1 Phase QO130L125PG
CAD Files Available
Square D

Load Center, QO, 30 Spaces, 125A, 120/240V AC, PoN Convertible Main Lug, 1 Phase

Zoro # G3306603
Mfr # QO130L125PG
product price:  $127.99
/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 Cover, Square D QO Load Centers Use With, 225A, 42 Spaces QOC42UF
Square D

Cover, Square D QO Load Centers Use With, 225A, 42 Spaces

Zoro # G2697992
Mfr # QOC42UF
product price:  $82.89
/ea
Zinsco Miniature Circuit Breaker, UBIZ Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC UBIZ0250
ZINSCO UBIZ Standard Plug In Miniature Circuit Breaker
13 results
table view View Items
Circuit Protection (3,500+ items) - Page 4
  • First
  • Previous
  • 4
    of 107 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 & ConduitWiring DevicesElectrical ConnectorsFuses & Accessories
Electrical Boxes & CoversWire & CablePower Quality & DistributionElectrical Enclosures, Wireways & CoversElectrical Replacement Parts
siemens 200 amp panelcircuit breaker br seriesideal circuit tracer kitbl breakereaton 200 amp breaker
90 amp breakercircuit breaker handlege 30 amp breakercircuit breakers &circuit breaker 200 amp

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