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
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 88

Siemens phase barriers, 2 units accessory for: 3VA20/21/22 3VA9262-0WA00
Siemens

phase barriers, 2 units accessory for: 3VA20/21/22

Zoro # G316284931
Mfr # 3VA9262-0WA00
product price: 
$12.45
/ea
Sold in mult. of 35 for $435.75
Square D Enclosure cover, NQ and NF panelboards, NEMA 1, surface, ventilated, hinged, 20in W x 74in H NC74VSHR
Square D

Enclosure cover, NQ and NF panelboards, NEMA 1, surface, ventilated, hinged, 20in W x 74in H

Zoro # G0855815
Mfr # NC74VSHR
product price: 
$562.99
/ea
No Product Image Available
Square D

Trim front, I-Line Panelboard, HCJ, surface mount, door in door, hinged right, 32in W x 73in H

Zoro # G0856591
Mfr # HC3273TSHR
product price: 
$1,271.76
/ea
Square D Load center accessory, Homeline, lug kit, neutral, 150A HOM150AN
Square D

Load center accessory, Homeline, lug kit, neutral, 150A

Zoro # G3156618
Mfr # HOM150AN
product price: 
$49.29
/ea
Siemens rear connection stud flat 3 units accessory for: 3VA51 3VA9133-0QE00
Siemens

rear connection stud flat 3 units accessory for: 3VA51

Zoro # G916525144
Mfr # 3VA9133-0QE00
product price: 
$74.75
/ea
Sold in mult. of 6 for $448.50
Square D Switch Not Fusible, 240V AC, 400A, 3 Poles DU325
Square D

Switch Not Fusible, 240V AC, 400A, 3 Poles

Zoro # G0570291
Mfr # DU325
product price: 
$1,785.32
/ea
No Product Image Available
Siemens

BQ FRAME LUGSPACKAGE OF 6/DO NOT BREAK

Zoro # G616091222
Mfr # TC1Q1
product price: 
$8.35
/ea
Sold in mult. of 6 for $50.10
Square D Fusible Switch, 600V AC/250V DC, 600A, 3 Poles QMB366W
Square D

Fusible Switch, 600V AC/250V DC, 600A, 3 Poles

Zoro # G7181106
Mfr # QMB366W
product price: 
$7,301.99
/ea
Siemens Msp S0-S3 Front Plate 3RV1923-4B
Siemens

Msp S0-S3 Front Plate

Zoro # G815673595
Mfr # 3RV1923-4B
product price: 
$80.15
/ea
No Product Image Available
Ge

Circuit Breaker Handle Lock (Non-Padlocking), 1/2-Pole (Snap-on)

Zoro # G722797537
Mfr # THL103
product price: 
$19.69
/ea
Ge Lighting Contactor Control Circuit Module/Coil CR460XCJ
Ge

Lighting Contactor Control Circuit Module/Coil

Zoro # G922797665
Mfr # CR460XCJ
product price: 
$121.99
/ea
No Product Image Available
Siemens

FD 600V SHUNT TRIP

Zoro # G116310038
Mfr # S06FD60
product price: 
$1,848.99
/ea
Siemens plug-in unit complete kit accessory for: circuit breaker 3-pole 3VA11 3VA9113-0KP00
Siemens

plug-in unit complete kit accessory for: circuit breaker 3-pole 3VA11

Zoro # G715868084
Mfr # 3VA9113-0KP00
product price: 
$266.99
/ea
Sold in mult. of 2 for $533.98
Siemens MAG 5000 CT IP67 / NEMA 4X/6 7ME6910-1AA10-1AD0
Siemens

MAG 5000 CT IP67 / NEMA 4X/6

Zoro # G616284839
Mfr # 7ME6910-1AA10-1AD0
product price: 
$2,396.99
/ea
Siemens undervoltage release 440-480 V AC 50/60 Hz accessory for: 3VA4/5/6 3VA9978-0BB27
Siemens

undervoltage release 440-480 V AC 50/60 Hz accessory for: 3VA4/5/6

Zoro # G516046728
Mfr # 3VA9978-0BB27
product price: 
$159.99
/ea
Sold in mult. of 3 for $479.97
No Product Image Available
Siemens

ED 480V SH TRIP 1 AUX SW - 1 BELL ALARM

Zoro # G416310073
Mfr # S04ED64AB
product price: 
$3,362.99
/ea
Siemens circular conduc. terminal TA1.4 16A&185 mmAsqrd 3 units accessory for: 3VA9263-0JB12
Siemens

circular conduc. terminal TA1.4 16A&185 mmAsqrd 3 units accessory for:

Zoro # G515959982
Mfr # 3VA9263-0JB12
product price: 
$41.25
/ea
Sold in mult. of 11 for $453.75
Siemens door feedthrough accessory for: 3VA63/64 3VA9347-0KT00
Siemens

door feedthrough accessory for: 3VA63/64

Zoro # G716486119
Mfr # 3VA9347-0KT00
product price: 
$86.15
/ea
Sold in mult. of 5 for $430.75
Siemens rear connection stud flat short, 1 unit accessory for: 3VA10/11 3VA9111-0QE10
Siemens

rear connection stud flat short, 1 unit accessory for: 3VA10/11

Zoro # G716486065
Mfr # 3VA9111-0QE10
product price: 
$18.75
/ea
Sold in mult. of 23 for $431.25
Siemens Circuit breaker size S00 for motor protection CLASS 10 with overload relay 3RV2111-1FA10
Siemens

Circuit breaker size S00 for motor protection CLASS 10 with overload relay

Zoro # G415465866
Mfr # 3RV2111-1FA10
product price: 
$166.99
/ea
Sold in mult. of 3 for $500.97
Lovato Rigid Connections Sm1R With Bf SM1X3141R
Lovato

Rigid Connections Sm1R With Bf

Zoro # G822868687
Mfr # SM1X3141R
product price: 
$453.99
/pk 10, $45.40/ea
Siemens Undervoltage release 24 V DC with 2 terminals for miniature circuit breaker 5SL4 5ST3045
Siemens

Undervoltage release 24 V DC with 2 terminals for miniature circuit breaker 5SL4

Zoro # G515868239
Mfr # 5ST3045
product price: 
$156.99
/ea
Sold in mult. of 3 for $470.97
Square D Panelboard Main Breaker Kit, QOB, 400A, Main Circuit Breaker NQMB2Q14
Square D

Panelboard Main Breaker Kit, QOB, 400A, Main Circuit Breaker

Zoro # G0855429
Mfr # NQMB2Q14
product price: 
$393.99
/ea
Square D Load Center, HOM, 42 Spaces, 225A, 120/240V AC, PoN Convertible Main Lug, 1 Phase HOM4284L225PC
Square D

Load Center, HOM, 42 Spaces, 225A, 120/240V AC, PoN Convertible Main Lug, 1 Phase

Zoro # G3306999
Mfr # HOM4284L225PC
product price: 
$277.99
/ea
No Product Image Available
Noark

Undervolt Trip 48Vdc Ul489

Zoro # G7033067
Mfr # UVT21NE
product price: 
$75.99
/ea
Standard10 Circuit Breaker, THQL Series, 15A, 1 Pole, 120/240V AC, 10kA at 120/240V AC ST574785
Standard10

Circuit Breaker, THQL Series, 15A, 1 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G109834701
Mfr # ST574785
product price: 
$112.99
/ea
Siemens BREAKER VL SWBOARD MTG STRAPS PG SSBP
Siemens

BREAKER VL SWBOARD MTG STRAPS PG

Zoro # G615366093
Mfr # SSBP
product price: 
$4,025.99
/ea
Square D Panelboard Cover/Trim Iline 4Pc W/Door HCW59TSD
Square D

Panelboard Cover/Trim Iline 4Pc W/Door

Zoro # G0570650
Mfr # HCW59TSD
product price: 
$733.99
/ea
Square D Load Center, HOM, 24 Spaces, 125A, 120/240V AC, PoN Convertible Main Breaker, 1 Phase HOM2448M125PC
Square D

Load Center, HOM, 24 Spaces, 125A, 120/240V AC, PoN Convertible Main Breaker, 1 Phase

Zoro # G3304171
Mfr # HOM2448M125PC
product price: 
$269.99
/ea
Square D Meter Main, RC, 30 Spaces, 200A, Main Lug RC3042M200PS
Square D

Meter Main, RC, 30 Spaces, 200A, Main Lug

Zoro # G3299034
Mfr # RC3042M200PS
product price: 
$2,063.99
/ea
Siemens Circuit Breaker Enclosure, W0, 125A, Main Lug, 1 Phase W0204ML1125CU
Siemens

Circuit Breaker Enclosure, W0, 125A, Main Lug, 1 Phase

Zoro # G7734560
Mfr # W0204ML1125CU
product price: 
$1,302.99
/ea
No Product Image Available
Noark

Shunt Trip 24Vdc Ul489

Zoro # G7166636
Mfr # SHT21NE
product price: 
$94.99
/ea
No Product Image Available
Siemens

Combo H&L Cont 300A N12 Circ Brkr

Zoro # G516091872
Mfr # CMBG21120
product price: 
$26,993.99
/ea
Siemens Compact mounting unit for load cell SIWAREX WL230 BB-S SA 350500kg 7MH5706-3PA00
Siemens

Compact mounting unit for load cell SIWAREX WL230 BB-S SA 350500kg

Zoro # G616284907
Mfr # 7MH5706-3PA00
product price: 
$1,374.99
/ea
Siemens undervoltage release 250 V DC accessory for: 3VA4/5/6 3VA9978-0BB16
Siemens

undervoltage release 250 V DC accessory for: 3VA4/5/6

Zoro # G216046738
Mfr # 3VA9978-0BB16
product price: 
$159.99
/ea
Sold in mult. of 3 for $479.97
Siemens RC unit 4-pole 5SM2645-2
Siemens

RC unit 4-pole

Zoro # G316096701
Mfr # 5SM2645-2
product price: 
$185.99
/ea
Sold in mult. of 3 for $557.97
Circuit Protection (3,500+ items) - Page 88
  • First
  • Previous
  • 88
    of 105 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
molded case breakertype ch breakerfiller plate eatonpanel mount circuit breakers60 amp load centers
circuit breaker 250 ampsiemens mini circuit breakerqo breaker panelsquare d nf panelboardqo 3 phase panels

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