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$134.74
TTC-6-1X2-24DC-PT Phoenix Contact A DIN Rail Surge Protection Device For A Single 2-Wire Floating Signal Circuit, Compatible With HART And 0(4)-20 Ma
Onlinecomponents.com
$134.74
TTC-6-1X2-24DC-PT Phoenix Contact A DIN Rail Surge Protection Device For A Single 2-Wire Floating Signal Circuit, Compatible With HART And 0(4)-20 Ma
Onlinecomponents.com
$131.65
S202MUC-K3 ABB The S202UDC-K3 Is A 2-Pole, 3A Miniature Circuit Breaker Rated For 125 VDC, Designed For Branch Circuit Protection In DC Applications.
Onlinecomponents.com
$131.65
S202MUC-K3 ABB The S202UDC-K3 Is A 2-Pole, 3A Miniature Circuit Breaker Rated For 125 VDC, Designed For Branch Circuit Protection In DC Applications.
Onlinecomponents.com
$134.74
2906804 Phoenix Contact The 2906804 Is A Surge Protection Device For 2-Wire Floating Signal Circuits, Including HART-Compatible 0(4)...20 Ma Current
Onlinecomponents.com
$134.74
2906804 Phoenix Contact The 2906804 Is A Surge Protection Device For 2-Wire Floating Signal Circuits, Including HART-Compatible 0(4)...20 Ma Current
Onlinecomponents.com
$104.00
SIEMENS Q215GF Ground Fault Circuit Interrupter, 15 Amp, 2-Pole GFCI Circuit Breaker Replaces QF215A
Amazon.com
9
Free shipping
$104.00
SIEMENS Q215GF Ground Fault Circuit Interrupter, 15 Amp, 2-Pole GFCI Circuit Breaker Replaces QF215A
Amazon.com
$2,250.00
Square D Jjl36250m75 : Motor Circuit Protector 600V 250A
Gordon Electric Supply
$2,250.00
Square D Jjl36250m75 : Motor Circuit Protector 600V 250A
Gordon Electric Supply
$149.47
TTC-3-1X2-24DC-PT Phoenix Contact Surge Protection For A 2-Wire Floating Signal Circuit - E.G. - 0(4) ... 20 Ma Current Loop - HART-Compatible.
Onlinecomponents.com
$149.47
TTC-3-1X2-24DC-PT Phoenix Contact Surge Protection For A 2-Wire Floating Signal Circuit - E.G. - 0(4) ... 20 Ma Current Loop - HART-Compatible.
Onlinecomponents.com
$119.00
Murr Elektronik | 9000-41034-0101000 | Electronic Circuit Protection Module |
Classic Automation
$119.00
Murr Elektronik | 9000-41034-0101000 | Electronic Circuit Protection Module |
Classic Automation
$57.29
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
125
Free shipping
$57.29
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
$132.90
$145.00
SIEMENS BOLTSHIELD Plug-In Surge Protection Device 2-Pole 65Ka 120/240V, 1Ø, 3W
Amazon.com
400
Free shipping
$132.90
$145.00
SIEMENS BOLTSHIELD Plug-In Surge Protection Device 2-Pole 65Ka 120/240V, 1Ø, 3W
Amazon.com
$61.00
Eaton Electrical - BRPSURGE - Eaton BRPSURGE Breaker, Surge Device, 120/240V, 1-Phase, 2P, BR
Amazon.com
10
Free shipping
$61.00
Eaton Electrical - BRPSURGE - Eaton BRPSURGE Breaker, Surge Device, 120/240V, 1-Phase, 2P, BR
Amazon.com
$129.00
Allen-Bradley | 140MT-C3E-C20 | Motor Protection Circuit Breaker |
Classic Automation
$129.00
Allen-Bradley | 140MT-C3E-C20 | Motor Protection Circuit Breaker |
Classic Automation
$144.10
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
7
Free shipping
15% off
$144.10
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
$48.00
$51.90
Siemens QF115A Ground Fault Circuit Interrupter, 15 Amp, 1 Pole, 120V, 10,000 AIC
Amazon.com
1K+
Free shipping
$48.00
$51.90
Siemens QF115A Ground Fault Circuit Interrupter, 15 Amp, 1 Pole, 120V, 10,000 AIC
Amazon.com
$95.00
Allen-Bradley | 140M-C2E-C10 | Motor Protection Circuit Breaker |
Classic Automation
$95.00
Allen-Bradley | 140M-C2E-C10 | Motor Protection Circuit Breaker |
Classic Automation
$24.99
250 2-Pole 50-Amp Circuit Breaker, Type 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit For R Load
Amazon.com
48
$24.99
250 2-Pole 50-Amp Circuit Breaker, Type 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit For R Load
Amazon.com
$39.00
Matsushita | BA221105 | Circuit Protector |
Classic Automation
$39.00
Matsushita | BA221105 | Circuit Protector |
Classic Automation
$178.00
Siemens 3RV1031-4DA10 SIRIUS Motor Protector/Circuit Breaker
PLCHardware.com
2
$178.00
Siemens 3RV1031-4DA10 SIRIUS Motor Protector/Circuit Breaker
PLCHardware.com
$279.00
Allen-Bradley | 140M-D8E-C16 | Motor Protection Circuit Breaker |
Classic Automation
$279.00
Allen-Bradley | 140M-D8E-C16 | Motor Protection Circuit Breaker |
Classic Automation
$59.95
Square D 1 Phase Surge Protection Device, 120/240VAC
Amazon.com
Free shipping
$59.95
Square D 1 Phase Surge Protection Device, 120/240VAC
Amazon.com
$207.00
Square D QO250PSPD - Schneider Electric 50Ka 120/240V 1-Phase 3-Wire Surge Protection Device QO Series Circuit Breakers
Essential Electric Supply
174
$207.00
Square D QO250PSPD - Schneider Electric 50Ka 120/240V 1-Phase 3-Wire Surge Protection Device QO Series Circuit Breakers
Essential Electric Supply
$95.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$95.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker, D
PLCHardware.com
$11.89
Voltage Surge Arrester Device, Surge Protective Device DC Photovoltaic Protector Low-Voltage Arrester
Amazon.com
$11.89
Voltage Surge Arrester Device, Surge Protective Device DC Photovoltaic Protector Low-Voltage Arrester
Amazon.com
$91.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker
PLCHardware.com
$91.00
Allen-Bradley 140M-C2E-B40 Motor Protection Circuit Breaker
PLCHardware.com
$19.50
MPCB08 Motor Protection Circuit Breaker For Industrial Electrical Systems Safe Reliable Protection
Urbann-vibe
$19.50
MPCB08 Motor Protection Circuit Breaker For Industrial Electrical Systems Safe Reliable Protection
Urbann-vibe
$73.49
$344.88
BRPSURGE - Eaton 2 Pole 10 Ka Circuit Breaker Surge Protective Device Plug-On Neutral Type BR
Essential Electric Supply
70
78% off
$73.49
$344.88
BRPSURGE - Eaton 2 Pole 10 Ka Circuit Breaker Surge Protective Device Plug-On Neutral Type BR
Essential Electric Supply
$23.50
MPCB03 Compact Electrical Protection Circuit Breaker For Industrial Panel Builders And Engineers
Urbann-vibe
$23.50
MPCB03 Compact Electrical Protection Circuit Breaker For Industrial Panel Builders And Engineers
Urbann-vibe
$35.99
Type BR Whole-Panel Circuit Breaker Surge Protective Device (1 Pack) (1)
Amazon.com
Free shipping
$35.99
Type BR Whole-Panel Circuit Breaker Surge Protective Device (1 Pack) (1)
Amazon.com
$19.75
$22.80
Square D Homeline 30 Amps Surge 2-Pole Circuit Breaker
Amazon.com
142
13% off
$19.75
$22.80
Square D Homeline 30 Amps Surge 2-Pole Circuit Breaker
Amazon.com
$50.54
Square D - HOMT230230CP Tandem Quad Circuit Breaker, Black
Amazon.com
8
Free shipping
$50.54
Square D - HOMT230230CP Tandem Quad Circuit Breaker, Black
Amazon.com
$94.08
BRNSURGE EATON CORPORATION - Circuit Breaker & Molded Case Circuit Breaker Supplies
Radwell.com
$94.08
BRNSURGE EATON CORPORATION - Circuit Breaker & Molded Case Circuit Breaker Supplies
Radwell.com
$26.93
Ground Fault Circuit Interrupter | Surge Protector
Diamond Tool Store
$26.93
Ground Fault Circuit Interrupter | Surge Protector
Diamond Tool Store
$435.44
Siemens 3RV2031-4VA10 Motor Protection Circuit Breaker 690 VAC 35 To 45 A Magnetic Trip
Voomi Supply
$435.44
Siemens 3RV2031-4VA10 Motor Protection Circuit Breaker 690 VAC 35 To 45 A Magnetic Trip
Voomi Supply
$9.99
Uxcell Thermal Circuit Breakers 15A 125/250V AC 32V DC Push Button Manual Reset Overload Protector Switch 2 Pcs
Amazon.com
58
$9.99
Uxcell Thermal Circuit Breakers 15A 125/250V AC 32V DC Push Button Manual Reset Overload Protector Switch 2 Pcs
Amazon.com
$40.95
$44.00
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
$40.95
$44.00
Square D By Schneider Electric Square D HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire For 120/240V, 25Ka
Amazon.com
$15.89
B120 120 VAC, 20 A, 10 Ka, 1-Pole, Bolt-On, Thermal And Fixed Magnetic, Branch, Molded Case, Panelboard Circuit Breaker
Kelly & Hayes Electrical Supply
155
$15.89
B120 120 VAC, 20 A, 10 Ka, 1-Pole, Bolt-On, Thermal And Fixed Magnetic, Branch, Molded Case, Panelboard Circuit Breaker
Kelly & Hayes Electrical Supply
$81.60
Eaton Cutler-Hammer BR2125 Type BR Circuit Breaker, 120/240 VAC, 125 A, 10 Ka, 2 Poles, Thermal Magnetic Trip
Amazon.com
8
Free shipping
$81.60
Eaton Cutler-Hammer BR2125 Type BR Circuit Breaker, 120/240 VAC, 125 A, 10 Ka, 2 Poles, Thermal Magnetic Trip
Amazon.com
Features of 3 circuit protection devices (MCB, RCCB and RCBO) you have probably forgotten
Features of 3 circuit protection devices (MCB, RCCB and RCBO) y…
Apr 25, 2016
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Introduction to Circuit Protection
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SENTRON COM | Siemens
2 months ago
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Methods of Circuit Protection
Methods of Circuit Protection
Aug 27, 2021
altium.com
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Circuit protection
Dec 28, 2024
eaton.com
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Shop circuit protection devices

Sponsored
About our ads
$134.74
TTC-6-1X2-24DC-PT Phoenix Contact A DIN Rail Surge Protection Device For A Single 2-Wire Floating Signal Circuit, Compatible With HART And 0(4)-20 Ma
Onlinecomponents.com
$134.74
TTC-6-1X2-24DC-PT Phoenix Contact A DIN Rail Surge Protection Device For A Single 2-Wire Floating Signal Circuit, Compatible With HART And 0(4)-20 Ma
Onlinecomponents.com
$131.65
S202MUC-K3 ABB The S202UDC-K3 Is A 2-Pole, 3A Miniature Circuit Breaker Rated For 125 VDC, Designed For Branch Circuit Protection In DC Applications.
Onlinecomponents.com
$131.65
S202MUC-K3 ABB The S202UDC-K3 Is A 2-Pole, 3A Miniature Circuit Breaker Rated For 125 VDC, Designed For Branch Circuit Protection In DC Applications.
Onlinecomponents.com
$134.74
2906804 Phoenix Contact The 2906804 Is A Surge Protection Device For 2-Wire Floating Signal Circuits, Including HART-Compatible 0(4)...20 Ma Current
Onlinecomponents.com
$134.74
2906804 Phoenix Contact The 2906804 Is A Surge Protection Device For 2-Wire Floating Signal Circuits, Including HART-Compatible 0(4)...20 Ma Current
Onlinecomponents.com
$104.00
SIEMENS Q215GF Ground Fault Circuit Interrupter, 15 Amp, 2-Pole GFCI Circuit Breaker Replaces QF215A
Amazon.com
9
Free shipping
$104.00
SIEMENS Q215GF Ground Fault Circuit Interrupter, 15 Amp, 2-Pole GFCI Circuit Breaker Replaces QF215A
Amazon.com
$2,250.00
Square D Jjl36250m75 : Motor Circuit Protector 600V 250A
Gordon Electric Supply
$2,250.00
Square D Jjl36250m75 : Motor Circuit Protector 600V 250A
Gordon Electric Supply
$149.47
TTC-3-1X2-24DC-PT Phoenix Contact Surge Protection For A 2-Wire Floating Signal Circuit - E.G. - 0(4) ... 20 Ma Current Loop - HART-Compatible.
Onlinecomponents.com
$149.47
TTC-3-1X2-24DC-PT Phoenix Contact Surge Protection For A 2-Wire Floating Signal Circuit - E.G. - 0(4) ... 20 Ma Current Loop - HART-Compatible.
Onlinecomponents.com
$119.00
Murr Elektronik | 9000-41034-0101000 | Electronic Circuit Protection Module |
Classic Automation
$119.00
Murr Elektronik | 9000-41034-0101000 | Electronic Circuit Protection Module |
Classic Automation
$57.29
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
125
Free shipping
$57.29
Siemens QSPD2A035B 35 Kamp Boltshield Indoor Surge Protective Device
Amazon.com
$132.90
$145.00
SIEMENS BOLTSHIELD Plug-In Surge Protection Device 2-Pole 65Ka 120/240V, 1Ø, 3W
Amazon.com
400
Free shipping
$132.90
$145.00
SIEMENS BOLTSHIELD Plug-In Surge Protection Device 2-Pole 65Ka 120/240V, 1Ø, 3W
Amazon.com
$61.00
Eaton Electrical - BRPSURGE - Eaton BRPSURGE Breaker, Surge Device, 120/240V, 1-Phase, 2P, BR
Amazon.com
10
Free shipping
$61.00
Eaton Electrical - BRPSURGE - Eaton BRPSURGE Breaker, Surge Device, 120/240V, 1-Phase, 2P, BR
Amazon.com
$129.00
Allen-Bradley | 140MT-C3E-C20 | Motor Protection Circuit Breaker |
Classic Automation
$129.00
Allen-Bradley | 140MT-C3E-C20 | Motor Protection Circuit Breaker |
Classic Automation
$144.10
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
7
Free shipping
15% off
$144.10
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
$48.00
$51.90
Siemens QF115A Ground Fault Circuit Interrupter, 15 Amp, 1 Pole, 120V, 10,000 AIC
Amazon.com
1K+
Free shipping
$48.00
$51.90
Siemens QF115A Ground Fault Circuit Interrupter, 15 Amp, 1 Pole, 120V, 10,000 AIC
Amazon.com
$95.00
Allen-Bradley | 140M-C2E-C10 | Motor Protection Circuit Breaker |
Classic Automation
$95.00
Allen-Bradley | 140M-C2E-C10 | Motor Protection Circuit Breaker |
Classic Automation
$24.99
250 2-Pole 50-Amp Circuit Breaker, Type 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit For R Load
Amazon.com
48
$24.99
250 2-Pole 50-Amp Circuit Breaker, Type 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit For R Load
Amazon.com
$39.00
Matsushita | BA221105 | Circuit Protector |
Classic Automation
$39.00
Matsushita | BA221105 | Circuit Protector |
Classic Automation
$178.00
Siemens 3RV1031-4DA10 SIRIUS Motor Protector/Circuit Breaker
PLCHardware.com
2
$178.00
Siemens 3RV1031-4DA10 SIRIUS Motor Protector/Circuit Breaker
PLCHardware.com
$279.00
Allen-Bradley | 140M-D8E-C16 | Motor Protection Circuit Breaker |
Classic Automation
$279.00
Allen-Bradley | 140M-D8E-C16 | Motor Protection Circuit Breaker |
Classic Automation

  • Electronic Circuit Protectors

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    About our ads
    SponsoredShop transformers, DC power supplies and converters, power meters, line filters and SPD…
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    Best Value in Automation · Free Tech Support · Best Documentation · Free Shipping Over $49

    Types: Safety Relays, Safety Switches, Light Curtains, Trapped Key Interlock