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Circuit Protection

Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, Vishay, & more.
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Please view our selection of circuit protection devices below.

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Types of Circuit Protection

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Results: 362,011

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Part #

Circuit Breakers LG 3 POLE 150KA FRAME ONLY

LGU3630NN
Eaton Electrical
1: €12,068.29
1In Stock
New Product

Mfr. Part No.
LGU3630NN

Mouser Part No
504-LGU3630NN

New Product

Eaton Electrical

Circuit Breakers LG 3 POLE 150KA FRAME ONLY

Datasheet

1In Stock

€12,068.29

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 120uJ, 20kA, Blocking Cap, Hole Mount

IS-B50LN-C2
PolyPhaser
1: €91.79
209In Stock
195On Order
New Product

Mfr. Part No.
IS-B50LN-C2

Mouser Part No
44-IS-B50LN-C2

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 120uJ, 20kA, Blocking Cap, Hole Mount

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Datasheet

209In Stock

195On Order

€91.79

€87.06

Min.: 1
Mult.: 1

Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+15TFTF-A
PolyPhaser
1: €160.07
38In Stock
19On Order
New Product

Mfr. Part No.
DGXZ+15TFTF-A

Mouser Part No
44-DGXZ+15TFTF-A

New Product

PolyPhaser

Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

38In Stock

19On Order

€160.07

€153.30

Min.: 1
Mult.: 1

Connectorised Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube

GT-TFF-AL
PolyPhaser
1: €65.94
29In Stock
57On Order
New Product

Mfr. Part No.
GT-TFF-AL

Mouser Part No
44-GT-TFF-AL

New Product

PolyPhaser

Connectorised Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube

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Datasheet

29In Stock

57On Order

€65.94

€62.43

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, Low PIM, Hazardous Location

TSX-NFF-HL
PolyPhaser
1: €156.93
9In Stock
New Product

Mfr. Part No.
TSX-NFF-HL

Mouser Part No
44-TSX-NFF-HL

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, Low PIM, Hazardous Location

Datasheet

9In Stock

€156.93

€148.85

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter

WSXM
PolyPhaser
1: €221.12
11In Stock
New Product

Mfr. Part No.
WSXM

Mouser Part No
44-WSXM

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter

Learn More

Datasheet

11In Stock

€221.12

€211.77

Min.: 1
Mult.: 1

Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI

PDG33G0250B2NJ
Eaton Electrical
1: €2,207.97
1In Stock
New Product

Mfr. Part No.
PDG33G0250B2NJ

Mouser Part No
504-PDG33G0250B2NJ

New Product

Eaton Electrical

Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI

Datasheet

1In Stock

€2,207.97

€2,067.53

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-750-3+0-UT-R

1466614
Phoenix Contact
1: €228.58
6In Stock
New Product

Mfr. Part No.
1466614

Mouser Part No
651-1466614

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-750-3+0-UT-R

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Datasheet

6In Stock

€228.58

€224.46

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

BGXZ-60NFNF-ALT
PolyPhaser
1: €164.34
20In Stock
13Expected 31/07/2026
New Product

Mfr. Part No.
BGXZ-60NFNF-ALT

Mouser Part No
44-BGXZ-60NFNF-ALT

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

20In Stock

13Expected 31/07/2026

€164.34

€155.88

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

DGXZ+36NFNF-A
PolyPhaser
1: €165.50
44In Stock
New Product

Mfr. Part No.
DGXZ+36NFNF-A

Mouser Part No
44-DGXZ+36NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount

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Datasheet

44In Stock

€165.50

€158.50

Min.: 1
Mult.: 1

Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors

GSA-KIT-N
PolyPhaser
1: €52.13
52In Stock
New Product

Mfr. Part No.
GSA-KIT-N

Mouser Part No
44-GSA-KIT-N

New Product

PolyPhaser

Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors

Learn More

Datasheet

52In Stock

€52.13

€49.36

Min.: 1
Mult.: 1

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

GTH-SFF-AL
PolyPhaser
1: €62.87
36In Stock
37On Order
New Product

Mfr. Part No.
GTH-SFF-AL

Mouser Part No
44-GTH-SFF-AL

New Product

PolyPhaser

Connectorised Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube

Datasheet

36In Stock

37On Order

€62.87

€59.53

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole Mount

VHF50ED-PGR
PolyPhaser
1: €183.13
7In Stock
New Product

Mfr. Part No.
VHF50ED-PGR

Mouser Part No
44-VHF50ED-PGR

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole Mount

Learn More

Datasheet

7In Stock

€183.13

€175.39

Min.: 1
Mult.: 1

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

VHF50HD
PolyPhaser
1: €164.34
9In Stock
New Product

Mfr. Part No.
VHF50HD

Mouser Part No
44-VHF50HD

New Product

PolyPhaser

Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount

Learn More

Datasheet

9In Stock

€164.34

€155.88

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PLATINUM NON-FLIGHT

10219128-00
TE Connectivity
1: €453.80
5In Stock
New Product

Mfr. Part No.
10219128-00

Mouser Part No
571-10219128-00

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PLATINUM NON-FLIGHT

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Datasheet

5In Stock

€453.80

€414.87

€337.80

€307.40

Min.: 1
Mult.: 1

Circuit Breakers NSX400F 36kA AC 4P4D 400A 2.3

C40F42D400
Schneider Electric
1: €4,924.65
1In Stock
New At Mouser

Mfr. Part No.
C40F42D400

Mouser Part No
996-C40F42D400

New At Mouser

Schneider Electric

Circuit Breakers NSX400F 36kA AC 4P4D 400A 2.3

Datasheet

1In Stock

€4,924.65

Min.: 1
Mult.: 1

Surge Protection Accessories 100 Foot Long 3 inch Wide Copper Strap

CS3-100
PolyPhaser
1: €1,059.87
3In Stock
New Product

Mfr. Part No.
CS3-100

Mouser Part No
44-CS3-100

New Product

PolyPhaser

Surge Protection Accessories 100 Foot Long 3 inch Wide Copper Strap

Learn More

Datasheet

3In Stock

€1,059.87

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

IS-50NX-C2
PolyPhaser
1: €84.38
66In Stock
13Expected 29/07/2026
New Product

Mfr. Part No.
IS-50NX-C2

Mouser Part No
44-IS-50NX-C2

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount

Learn More

Datasheet

66In Stock

13Expected 29/07/2026

€84.38

€80.03

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount

IS-B50LN-C0
PolyPhaser
1: €81.42
32In Stock
25On Order
New Product

Mfr. Part No.
IS-B50LN-C0

Mouser Part No
44-IS-B50LN-C0

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount

Learn More

Datasheet

32In Stock

25On Order

€81.42

€77.23

Min.: 1
Mult.: 1

Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B

IXG-05
PolyPhaser
1: €160.07
9In Stock
8Expected 30/07/2026
New Product

Mfr. Part No.
IXG-05

Mouser Part No
44-IXG-05

New Product

PolyPhaser

Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B

Learn More

Datasheet

9In Stock

8Expected 30/07/2026

€160.07

€153.30

Min.: 1
Mult.: 1

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

TSX-4310FF-P
PolyPhaser
1: €156.00
9In Stock
New Product

Mfr. Part No.
TSX-4310FF-P

Mouser Part No
44-TSX-4310FF-P

New Product

PolyPhaser

Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM

Learn More

Datasheet

9In Stock

€156.00

€149.40

Min.: 1
Mult.: 1

Industrial Surge Protectors SHOCK BLOCK CLASS A GFCI 208-240V 30A

SB4030-521-00
Littelfuse
1: €452.33
5In Stock
New Product

Mfr. Part No.
SB4030-521-00

Mouser Part No
576-SB4030-521-00

New Product

Littelfuse

Industrial Surge Protectors SHOCK BLOCK CLASS A GFCI 208-240V 30A

Learn More

Datasheet

5In Stock

€452.33

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SPP-T2-335-1+1-UT

1466589
Phoenix Contact
1: €153.26
22In Stock
New Product

Mfr. Part No.
1466589

Mouser Part No
651-1466589

New Product

Phoenix Contact

Industrial Surge Protectors VAL-SPP-T2-335-1+1-UT

Learn More

Datasheet

22In Stock

€153.26

€150.50

Min.: 1
Mult.: 1

Circuit Breakers PTCB TM1 10A M1 NO P

1575580
Phoenix Contact
1: €25.72
256In Stock
New Product

Mfr. Part No.
1575580

Mouser Part No
651-1575580

New Product

Phoenix Contact

Circuit Breakers PTCB TM1 10A M1 NO P

Learn More

Datasheet

256In Stock

€25.72

€24.60

Min.: 1
Mult.: 1

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

CGXJ+36NFNF-A
PolyPhaser
1: €181.78
9In Stock
New Product

Mfr. Part No.
CGXJ+36NFNF-A

Mouser Part No
44-CGXJ+36NFNF-A

New Product

PolyPhaser

Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount

Learn More

Datasheet

9In Stock

€181.78

€174.09

Min.: 1
Mult.: 1

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