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40 mm Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Varistors 620V 40KA MOV Disc Square 34mm 621KS34 YAGEO 1: $6.48 9,753In Stock	Mfr. Part No. 621KS34 Mouser Part No 603-621KS34	YAGEO	Varistors 620V 40KA MOV Disc Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	9,753In Stock	$6.48 $4.98 $4.51 $3.87 View $3.77 $3.73 $3.72	Min.: 1 Mult.: 1
Varistors 360V 40KA MOV Square 34mm 361KS34 YAGEO 1: $8.21 847In Stock	Mfr. Part No. 361KS34 Mouser Part No 603-361KS34	YAGEO	Varistors 360V 40KA MOV Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	847In Stock	$8.21 $6.92 $6.54 $5.66 View $4.16 $4.15	Min.: 1 Mult.: 1
Circuit Breaker Accessories Bottom Feed Terminal For use with 1-3 phase Gladiator UL1077 Busbar 802-ESB50UL Amphenol FTG 1: $8.08 43In Stock New At Mouser	Mfr. Part No. 802-ESB50UL Mouser Part No 248-802-ESB50UL New At Mouser	Amphenol FTG	Circuit Breaker Accessories Bottom Feed Terminal For use with 1-3 phase Gladiator UL1077 Busbar Learn More about Amphenol FTG ulcut busbar accessories	Datasheet	43In Stock	$8.08 $7.54 $7.30 $5.62 View $4.78 $4.49 $3.97 $3.79	Min.: 1 Mult.: 1
Varistors 680V 40KA MOV Disc Square 34mm 681KS34 YAGEO 1: $7.59 158In Stock	Mfr. Part No. 681KS34 Mouser Part No 603-681KS34	YAGEO	Varistors 680V 40KA MOV Disc Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	158In Stock	$7.59 $6.40 $6.05 $5.24 View $4.61 $3.94	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 160A 690V 000/80 AR UC 170M1369 Bussmann / Eaton 1: $242.71 30In Stock	Mfr. Part No. 170M1369 Mouser Part No 504-170M1369	Bussmann / Eaton	Industrial & Electrical Fuses 160A 690V 000/80 AR UC	Datasheet	30In Stock	$242.71 $224.32 $212.58	Min.: 1 Mult.: 1
Connectorised Surge Protectors LPN-Male to N-Female BulkHD AL-NMNFB-9 L-Com 1: $56.34 22In Stock New At Mouser	Mfr. Part No. AL-NMNFB-9 Mouser Part No 17-AL-NMNFB-9 New At Mouser	L-Com	Connectorised Surge Protectors LPN-Male to N-Female BulkHD Learn More about L-Com l com rf protectors	Datasheet	22In Stock	$56.34 $49.18 $47.06 $46.21 View $43.34 $42.58 Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors LPN-Female to N-Female BulkHD AL-NFNFB-9 L-Com 1: $76.38 78In Stock New At Mouser	Mfr. Part No. AL-NFNFB-9 Mouser Part No 17-AL-NFNFB-9 New At Mouser	L-Com	Connectorised Surge Protectors LPN-Female to N-Female BulkHD Learn More about L-Com l com rf protectors	Datasheet	78In Stock	$76.38 $69.18 $66.22 $65.02 View $61.02 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories LINE CONNECTOR SIZE S00 SPRING 3RV29175AA00 Siemens 1: $22.55 5In Stock	Mfr. Part No. 3RV29175AA00 Mouser Part No 982-3RV29175AA00	Siemens	Circuit Breaker Accessories LINE CONNECTOR SIZE S00 SPRING Learn More about Siemens 3rv2 circuit breakers	Datasheet	5In Stock	$22.55 $19.30 $17.83 $15.11 View $14.05 $12.94 $12.12	Min.: 1 Mult.: 1
Fuse Holder Accessories for CF8 Fuse Link 255.2000.0001 Littelfuse 1: $49.72 49In Stock	Mfr. Part No. 255.2000.0001 Mouser Part No 576-255.2000.0001	Littelfuse	Fuse Holder Accessories for CF8 Fuse Link	Datasheet	49In Stock	$49.72 $41.25 $38.05 $33.11 $32.50	Min.: 1 Mult.: 1
Connectorised Surge Protectors LPF-Female to F-Female AL-FFFF-9 L-Com 1: $72.74 17In Stock New At Mouser	Mfr. Part No. AL-FFFF-9 Mouser Part No 17-AL-FFFF-9 New At Mouser	L-Com	Connectorised Surge Protectors LPF-Female to F-Female Learn More about L-Com l com rf protectors	Datasheet	17In Stock	$72.74 $63.20 $61.31 $60.15 View $56.53 Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors LPN-Female to N-Female AL-NFNFB-6 L-Com 1: $89.99 2In Stock 5Expected 13/11/2026 New At Mouser	Mfr. Part No. AL-NFNFB-6 Mouser Part No 17-AL-NFNFB-6 New At Mouser	L-Com	Connectorised Surge Protectors LPN-Female to N-Female	Datasheet	2In Stock 5Expected 13/11/2026	$89.99 $80.03 $77.35 $76.08 View $72.19 Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors LPTNC-Male to TNC-Female AL-TMTFB-9 L-Com 1: $76.96 21In Stock New At Mouser	Mfr. Part No. AL-TMTFB-9 Mouser Part No 17-AL-TMTFB-9 New At Mouser	L-Com	Connectorised Surge Protectors LPTNC-Male to TNC-Female Learn More about L-Com l com rf protectors	Datasheet	21In Stock	$76.96 $68.16 $65.31 $63.65 View $60.47 Quote	Min.: 1 Mult.: 1
Varistors 430V 40KA MOV Disc Square 34mm 431KS34 YAGEO 1: $5.31 55In Stock	Mfr. Part No. 431KS34 Mouser Part No 603-431KS34	YAGEO	Varistors 430V 40KA MOV Disc Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	55In Stock	$5.31 $4.05 $3.50 $3.34 View $3.19 $3.10 $3.06	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 160A 690V 000TN/80 AR UC 170M1419 Bussmann / Eaton 1: $299.83 59In Stock	Mfr. Part No. 170M1419 Mouser Part No 504-170M1419	Bussmann / Eaton	Industrial & Electrical Fuses 160A 690V 000TN/80 AR UC	Datasheet	59In Stock	$299.83 $276.72	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 100A 690V 000TN/80 AR UC 170M1417 Bussmann / Eaton 1: $289.72 2In Stock 8Expected 07/12/2026	Mfr. Part No. 170M1417 Mouser Part No 504-170M1417	Bussmann / Eaton	Industrial & Electrical Fuses 100A 690V 000TN/80 AR UC	Datasheet	2In Stock 8Expected 07/12/2026	$289.72 $267.38	Min.: 1 Mult.: 1
Circuit Breaker Accessories BRKR 3VA63/64 MAX-FLEX OPER N3R STL RB 3VA94770CK72 Siemens 1: $2,025.81 1Expected 25/01/2027	Mfr. Part No. 3VA94770CK72 Mouser Part No 982-3VA94770CK72	Siemens	Circuit Breaker Accessories BRKR 3VA63/64 MAX-FLEX OPER N3R STL RB Learn More about Siemens 3va molded case circuit breakers	Datasheet	1Expected 25/01/2027	$2,025.81	Min.: 1 Mult.: 1
Fuse Holder Accessories for CF8 Fuse Link 255.1000.0001 Littelfuse 1: $35.38 100Expected 01/02/2027	Mfr. Part No. 255.1000.0001 Mouser Part No 576-255.1000.0001	Littelfuse	Fuse Holder Accessories for CF8 Fuse Link	Datasheet	100Expected 01/02/2027	$35.38 $29.36 $26.85 $22.88 $22.36	Min.: 1 Mult.: 1
Varistors 390V 40KA MOV Disc Square 34mm 391KS34 YAGEO 1: $8.05 56Expected 21/12/2026	Mfr. Part No. 391KS34 Mouser Part No 603-391KS34	YAGEO	Varistors 390V 40KA MOV Disc Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	56Expected 21/12/2026	$8.05 $6.79 $6.42 $5.55 View $5.12 $4.18	Min.: 1 Mult.: 1
Circuit Breaker Accessories LINE CONNECTOR SIZE S00 SPRING QTY 10 3RV29175A Siemens 1: $20.52 Non-Stocked Lead-Time 3 Weeks	Mfr. Part No. 3RV29175A Mouser Part No 982-3RV29175A	Siemens	Circuit Breaker Accessories LINE CONNECTOR SIZE S00 SPRING QTY 10 Learn More about Siemens 3rv2 circuit breakers	Datasheet	Non-Stocked Lead-Time 3 Weeks	$20.52 $18.08 $13.09 $12.92 View $12.81 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories BRKR 3VA63/64 OPER MECH FOR MAX-FLEX 3VA94770CB10 Siemens 1: $696.35 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. 3VA94770CB10 Mouser Part No 982-3VA94770CB10	Siemens	Circuit Breaker Accessories BRKR 3VA63/64 OPER MECH FOR MAX-FLEX Learn More about Siemens 3va molded case circuit breakers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$696.35 $667.21 $651.75 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories BRKR 3VA63/64 MAX-FLEX OPER N3R PL RB 3VA94770CK12 Siemens 1: $1,895.83 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. 3VA94770CK12 Mouser Part No 982-3VA94770CK12	Siemens	Circuit Breaker Accessories BRKR 3VA63/64 MAX-FLEX OPER N3R PL RB Learn More about Siemens 3va molded case circuit breakers	Datasheet	Non-Stocked Lead-Time 7 Weeks	$1,895.83	Min.: 1 Mult.: 1
Circuit Breaker Accessories BRKR 3VA1/2 1250A 3P LG LUG W/CVR 2W 3VA96030JJ25 Siemens 1: $498.67 Non-Stocked Lead-Time 5 Weeks	Mfr. Part No. 3VA96030JJ25 Mouser Part No 982-3VA96030JJ25	Siemens	Circuit Breaker Accessories BRKR 3VA1/2 1250A 3P LG LUG W/CVR 2W Learn More about Siemens 3va molded case circuit breakers	Datasheet	Non-Stocked Lead-Time 5 Weeks	$498.67 $455.86 $441.93 View Quote	Min.: 1 Mult.: 1
Varistors 100V 30KA MOV Square 34mm 101KS34 YAGEO 300: $5.13 Non-Stocked Lead-Time 22 Weeks	Mfr. Part No. 101KS34 Mouser Part No 603-101KS34	YAGEO	Varistors 100V 30KA MOV Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	Non-Stocked Lead-Time 22 Weeks	$5.13 $4.53	Min.: 300 Mult.: 60
Varistors 1000V 40KA MOV Square 34mm 102KS34 YAGEO 1: $9.51 Non-Stocked Lead-Time 22 Weeks	Mfr. Part No. 102KS34 Mouser Part No 603-102KS34	YAGEO	Varistors 1000V 40KA MOV Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	Non-Stocked Lead-Time 22 Weeks	$9.51 $7.57 $6.97 $6.09 View $5.83 $5.15	Min.: 1 Mult.: 1
Varistors 1100V 40KA MOV Square 34mm 112KS34 YAGEO 1: $9.51 Non-Stocked Lead-Time 22 Weeks	Mfr. Part No. 112KS34 Mouser Part No 603-112KS34	YAGEO	Varistors 1100V 40KA MOV Square 34mm Learn More about YAGEO mov overvoltage devices	Datasheet	Non-Stocked Lead-Time 22 Weeks	$9.51 $7.57 $7.22 $6.09 View $5.83 $5.15	Min.: 1 Mult.: 1

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40 mm Circuit Protection

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