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$16.00
Circuit Breaker Lockout - Oversized - Master Lock
Uline
$16.00
Circuit Breaker Lockout - Oversized - Master Lock
Uline
$13.00
Circuit Breaker Lockout - Standard - Master Lock
Uline
$13.00
Circuit Breaker Lockout - Standard - Master Lock
Uline
$50.00
Electrical Plug Cover Lockout - Large - Master Lock - Pack Of 2
Uline
$50.00
Electrical Plug Cover Lockout - Large - Master Lock - Pack Of 2
Uline
$141.27
$341.00
3RV20111BA10 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
58% off
$141.27
$341.00
3RV20111BA10 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
$216.00
Square D 9999Tc20 : Disconnect Switch Auxiliary Contact Kit
New Feedonomics Feed - ARC 8/12/2025
$216.00
Square D 9999Tc20 : Disconnect Switch Auxiliary Contact Kit
New Feedonomics Feed - ARC 8/12/2025
$1,135.00
Ilsco Xe-050-3Y3X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$1,135.00
Ilsco Xe-050-3Y3X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$174.00
$420.00
3RV20111GA15 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
58% off
$174.00
$420.00
3RV20111GA15 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
$655.00
Ilsco Se-050-3N4X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$655.00
Ilsco Se-050-3N4X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$67.98
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
164
Free shipping
$67.98
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
$403.69
3RV20314VA15 Siemens Motor Protection Circuit Breaker
Standard Electric Supply Co.
$403.69
3RV20314VA15 Siemens Motor Protection Circuit Breaker
Standard Electric Supply Co.
$399.00
EMP Shield - Home EMP, Surge, & Lightning Protection (SP-120-240-W) Solar Flare And Surge Protection
EMP Shield LLC
$399.00
EMP Shield - Home EMP, Surge, & Lightning Protection (SP-120-240-W) Solar Flare And Surge Protection
EMP Shield LLC
$46.00
$52.69
Square D By Schneider Electric Square D HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire For 120/240V, 25Ka
Amazon.com
1K+
Free shipping
12% off
$46.00
$52.69
Square D By Schneider Electric Square D HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire For 120/240V, 25Ka
Amazon.com
$465.57
Siemens FS100 Whole House Surge Protection Device Rated For 100,000 Amps
Amazon.com
Free shipping
$465.57
Siemens FS100 Whole House Surge Protection Device Rated For 100,000 Amps
Amazon.com
$389.00
EMP Shield Whole Home Generator EMP, Lightning, & Surge Protection (SP-120-240-G) Solar Flare And Surge Protection
EMP Shield LLC
$389.00
EMP Shield Whole Home Generator EMP, Lightning, & Surge Protection (SP-120-240-G) Solar Flare And Surge Protection
EMP Shield LLC
$96.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$96.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$221.00
Allen-Bradley 140M-C2E-B25 Motor Protection Circuit Breaker, C
PLCHardware.com
3
$221.00
Allen-Bradley 140M-C2E-B25 Motor Protection Circuit Breaker, C
PLCHardware.com
$683.61
101479 Roll-Rite (OEM) Breaker, Electronic Smart Breaker In Enclosure
Carolina Tarps
$683.61
101479 Roll-Rite (OEM) Breaker, Electronic Smart Breaker In Enclosure
Carolina Tarps
$69.00
Allen-Bradley 140M-C2E-A63 Motor Protection Circuit Breaker, B
PLCHardware.com
$69.00
Allen-Bradley 140M-C2E-A63 Motor Protection Circuit Breaker, B
PLCHardware.com
$3,462.57
3VA6210-5HL31-0AA0 - Siemens 100A 600V 3-Pole Circuit Breaker 3VA62 Frame Solid State Protection
Essential Electric Supply
17% off
$3,462.57
3VA6210-5HL31-0AA0 - Siemens 100A 600V 3-Pole Circuit Breaker 3VA62 Frame Solid State Protection
Essential Electric Supply
$10.74
Amana 10091102 Fuse Block 1.2 Inch OEM Circuit Protection For Kitchen | Commercial Restaurant Supply
RestaurantSupply.com
$10.74
Amana 10091102 Fuse Block 1.2 Inch OEM Circuit Protection For Kitchen | Commercial Restaurant Supply
RestaurantSupply.com
$59.00
Allen-Bradley | 140M-C2E-B16 | Motor Protection Circuit Breaker |
Classic Automation
$59.00
Allen-Bradley | 140M-C2E-B16 | Motor Protection Circuit Breaker |
Classic Automation
$47.23
$61.32
Hatco 02-03-033 Fuse Compact Circuit Protection For Hatco Appliances | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
22% off
$47.23
$61.32
Hatco 02-03-033 Fuse Compact Circuit Protection For Hatco Appliances | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
$4,078.65
3VA62105HL310AA0 - Siemens 3-Pole 100A 690V Molded Case Circuit Breaker ETU320 18Ka 3VA6 Frame
Essential Electric Supply
$4,078.65
3VA62105HL310AA0 - Siemens 3-Pole 100A 690V Molded Case Circuit Breaker ETU320 18Ka 3VA6 Frame
Essential Electric Supply
$1,285.00
Siemens | TPS3CL130000 | SPD Serge Protection Module |
Classic Automation
$1,285.00
Siemens | TPS3CL130000 | SPD Serge Protection Module |
Classic Automation
$119.00
Allen-Bradley | 140MT-D9E-B25 | Motor Protection Circuit Breaker |
Classic Automation
$119.00
Allen-Bradley | 140MT-D9E-B25 | Motor Protection Circuit Breaker |
Classic Automation
$83.31
Amana 14174131 4.25 Inch OEM Interlock Fuse Block For Circuit Protection | Commercial Restaurant Supply
RestaurantSupply.com
$83.31
Amana 14174131 4.25 Inch OEM Interlock Fuse Block For Circuit Protection | Commercial Restaurant Supply
RestaurantSupply.com
$218.00
Morningstar GFPD-150V Ground Fault Protection Device For 150 Volt PV System Breakers
NAZ Solar Electric
$218.00
Morningstar GFPD-150V Ground Fault Protection Device For 150 Volt PV System Breakers
NAZ Solar Electric
$2,313.28
Littelfuse Inc. SB5060-001-0 GROUND FAULT CIRCUIT INTERRUPTER
DigiKey
$2,313.28
Littelfuse Inc. SB5060-001-0 GROUND FAULT CIRCUIT INTERRUPTER
DigiKey
$25.09
$101.15
QCF1020 - Cutler Hammer 20A 120/240V 1-Pole Thermal Magnetic Circuit Breaker Quicklag Series
Essential Electric Supply
75% off
$25.09
$101.15
QCF1020 - Cutler Hammer 20A 120/240V 1-Pole Thermal Magnetic Circuit Breaker Quicklag Series
Essential Electric Supply
$4,959.00
12IFC51A1A - General Electric Current Protection Relay (New)
Electrical.com
$4,959.00
12IFC51A1A - General Electric Current Protection Relay (New)
Electrical.com
$77.98
Siemens QFG 20-Amp 1 -Pole Dual Function AFCI/GFCI Circuit Breaker | Q120DFP
Lowe's
152
$77.98
Siemens QFG 20-Amp 1 -Pole Dual Function AFCI/GFCI Circuit Breaker | Q120DFP
Lowe's
$149.00
Bourns Electronic Circuit External Signal Line Surge Protector
Core & Main
$149.00
Bourns Electronic Circuit External Signal Line Surge Protector
Core & Main
$1,029.60
Schneider Electric HJL36030M71 MOTOR CIRCUIT PROTECTOR 600V 30A
DigiKey
$1,029.60
Schneider Electric HJL36030M71 MOTOR CIRCUIT PROTECTOR 600V 30A
DigiKey
$758.67
61H - Siemens Protective Relay Circuit Breaker (New)
Electrical.com
$758.67
61H - Siemens Protective Relay Circuit Breaker (New)
Electrical.com
$259.27
Morningstar, GFPD-150V, Ground Fault Protection Device For 150 Vol
Inverter Supply
$259.27
Morningstar, GFPD-150V, Ground Fault Protection Device For 150 Vol
Inverter Supply
$24.85
Ground Fault Circuit Interrupter | Surge Protector
Diamond Tool Store
$24.85
Ground Fault Circuit Interrupter | Surge Protector
Diamond Tool Store
Resistor, Inductor, Capacitor — What Happens When You Flip the Switch?
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YouTubeThe Curiosity Lab
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Shop circuit protection devices

Sponsored
About our ads
$16.00
Circuit Breaker Lockout - Oversized - Master Lock
Uline
$16.00
Circuit Breaker Lockout - Oversized - Master Lock
Uline
$13.00
Circuit Breaker Lockout - Standard - Master Lock
Uline
$13.00
Circuit Breaker Lockout - Standard - Master Lock
Uline
$50.00
Electrical Plug Cover Lockout - Large - Master Lock - Pack Of 2
Uline
$50.00
Electrical Plug Cover Lockout - Large - Master Lock - Pack Of 2
Uline
$141.27
$341.00
3RV20111BA10 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
58% off
$141.27
$341.00
3RV20111BA10 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
$216.00
Square D 9999Tc20 : Disconnect Switch Auxiliary Contact Kit
New Feedonomics Feed - ARC 8/12/2025
$216.00
Square D 9999Tc20 : Disconnect Switch Auxiliary Contact Kit
New Feedonomics Feed - ARC 8/12/2025
$1,135.00
Ilsco Xe-050-3Y3X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$1,135.00
Ilsco Xe-050-3Y3X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$174.00
$420.00
3RV20111GA15 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
58% off
$174.00
$420.00
3RV20111GA15 Siemens SIRIUS Motor Protection Circuit Breaker
Standard Electric Supply Co.
$655.00
Ilsco Se-050-3N4X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$655.00
Ilsco Se-050-3N4X-A 3Ph Surge Protective Device
New Feedonomics Feed - ARC 8/12/2025
$67.98
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
164
Free shipping
$67.98
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
$403.69
3RV20314VA15 Siemens Motor Protection Circuit Breaker
Standard Electric Supply Co.
$403.69
3RV20314VA15 Siemens Motor Protection Circuit Breaker
Standard Electric Supply Co.
$399.00
EMP Shield - Home EMP, Surge, & Lightning Protection (SP-120-240-W) Solar Flare And Surge Protection
EMP Shield LLC
$399.00
EMP Shield - Home EMP, Surge, & Lightning Protection (SP-120-240-W) Solar Flare And Surge Protection
EMP Shield LLC
$46.00
$52.69
Square D By Schneider Electric Square D HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire For 120/240V, 25Ka
Amazon.com
1K+
Free shipping
12% off
$46.00
$52.69
Square D By Schneider Electric Square D HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire For 120/240V, 25Ka
Amazon.com
$465.57
Siemens FS100 Whole House Surge Protection Device Rated For 100,000 Amps
Amazon.com
Free shipping
$465.57
Siemens FS100 Whole House Surge Protection Device Rated For 100,000 Amps
Amazon.com
$389.00
EMP Shield Whole Home Generator EMP, Lightning, & Surge Protection (SP-120-240-G) Solar Flare And Surge Protection
EMP Shield LLC
$389.00
EMP Shield Whole Home Generator EMP, Lightning, & Surge Protection (SP-120-240-G) Solar Flare And Surge Protection
EMP Shield LLC
$96.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$96.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$221.00
Allen-Bradley 140M-C2E-B25 Motor Protection Circuit Breaker, C
PLCHardware.com
3
$221.00
Allen-Bradley 140M-C2E-B25 Motor Protection Circuit Breaker, C
PLCHardware.com
$683.61
101479 Roll-Rite (OEM) Breaker, Electronic Smart Breaker In Enclosure
Carolina Tarps
$683.61
101479 Roll-Rite (OEM) Breaker, Electronic Smart Breaker In Enclosure
Carolina Tarps
$69.00
Allen-Bradley 140M-C2E-A63 Motor Protection Circuit Breaker, B
PLCHardware.com
$69.00
Allen-Bradley 140M-C2E-A63 Motor Protection Circuit Breaker, B
PLCHardware.com