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Electronic Circuit Breakers

Electronic circuit breakers are automatically operated electrical switches that are designed to protect an electrical circuit from damage. They cut off a circuit whenever the current jumps above a safe level.

How electronic circuit breakers work

Electronic circuit breakers prevent an overload or short circuit. Their basic function is to keep an electrical system running safely by interrupting the flow of current when a fault is detected. They do this by a combination of active electronic current limitation in the case of a short circuit and an overload deactivation.

Why electronic circuit breakers are important

In homes, there's usually a main electronic circuit breaker that protects the whole system, plus smaller circuit breakers built into many domestic appliances such as washing machines, tumble dryers and air-conditioning systems.

Without circuit breakers (or the alternative, fuses), household electricity would be impractical because of the potential for fires and other issues resulting from simple wiring problems and equipment failures. Compared to fuses, which only work once and then require replacment, circuit breakers can be used over and over again.

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In Stock Phoenix Contact PTCB Electronic Circuit Breaker 2A 24V, DIN Rail Type E RS Stock No. 207-2803 Mfr. Part No. 2909903 Subtotal (1 unit) £48.70(exc. VAT) £48.70/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	-	PTCB	1	2A	-	24V	DIN Rail	-	Type E	-	80mm	Screw	6.2mm	55.6mm	cUL, cULus, EN 61000-6-3, RoHS, UL	-	-	-
In Stock Murrelektronik Limited MICO MICO Electronic Circuit Breaker 6A 24V, 4 channels, DIN Rail RS Stock No. 123-6689 Mfr. Part No. 9000-41034-0100600 Subtotal (1 unit) £144.43(exc. VAT) £144.43/unit Quantity	Murrelektronik Limited	Electronic Circuit Breaker	MICO	MICO	4	6A	-	24V	DIN Rail	-	-	-	-	Spring Clamp Terminal	70mm	-	cULus, cUL, CSA, RoHS	-	-	-
In Stock Murrelektronik Limited MICO Electronic Circuit Breaker 1A, 4 A 24V, 4 channels, DIN Rail RS Stock No. 123-6688 Mfr. Part No. 9000-41034-0100400 Subtotal (1 unit) £137.03(exc. VAT) £137.03/unit Quantity	Murrelektronik Limited	Electronic Circuit Breaker	-	MICO	4	1, 4A	-	24V	DIN Rail	-	-	-	-	Spring Clamp Terminal	70mm	-	cULus, RoHS, cUL, CSA	-	-	-
In Stock PULS PISA11 Electronic Circuit Breaker 16A 24V, 4 channels, Wall RS Stock No. 401-713 Mfr. Part No. PISA11.404 Subtotal (1 unit) £53.07(exc. VAT) £53.07/unit Quantity	PULS	Electronic Circuit Breaker	-	PISA11	4	16A	-	24V	Wall	-	-	-	91mm	Screw	45mm	75mm	IEC/ CISPR 16-1-2, IEC/ CISPR 16-2-1, REACH, RoHS, UL 2367, UL 508, UL 60950-1, IEC 60068-2-60, IEC 60950-1, IEC 60079 (IECEx), ATEX, EN 55011, EN 55032, EN 61000-6-1 and EN 61000-6-2, EN 61000-6-3, EN 6100	-	-	-
In Stock Weidmüller maxGUARD AMG FIM-0 Electronic Circuit Breaker 24V, 2 channels, DIN Rail RS Stock No. 179-2988 Mfr. Part No. 2081870000 Subtotal (1 unit) £5.77(exc. VAT) £5.77/unit Quantity	Weidmüller	Electronic Circuit Breaker	maxGUARD	AMG FIM-0	2	-	-	24V	DIN Rail	-	-	-	12.2mm	Push-in	96.5mm	125mm	CE, cULus, EAC, RoHS	-	-	-
In Stock Murrelektronik Limited MICO MICO Electronic Circuit Breaker 10A 24V, 4 channels, DIN Rail RS Stock No. 123-6690 Mfr. Part No. 9000-41034-0401000 Subtotal (1 unit) £160.13(exc. VAT) £160.13/unit Quantity	Murrelektronik Limited	Electronic Circuit Breaker	MICO	MICO	4	10A	-	24V	DIN Rail	-	-	-	-	Spring Clamp Terminal	70mm	-	cUL, RoHS, cULus, CSA	-	-	-
In Stock ETA REX12 REX12-T Electronic Circuit Breaker 4A 24V dc, DIN Rail RS Stock No. 175-0366 Mfr. Part No. REX12-TA1-107-DC24V-4A Subtotal (1 unit) £37.93(exc. VAT) £37.93/unit Quantity	ETA	Electronic Circuit Breaker	REX12	REX12-T	1	4A	-	24V dc	DIN Rail	-	-	-	12.5mm	Push-in	12.5mm	80mm	RoHS, CE, UL	-	-	-
Temporarily out of stock Eaton IZMX/INX Electronic Circuit Breaker 1600A 690V RS Stock No. 127-729 Mfr. Part No. 183411 IZMX16N4-P16W-1 Subtotal (1 unit) £12,131.26(exc. VAT) £12,131.26/unit Quantity	Eaton	Electronic Circuit Breaker	IZMX/INX	Eaton Moeller	-	1600A	50kA	690V	-	-	-	-	584mm	-	521mm	597mm	IEC, RoHS, IEC/EN 60947	-	-	-
In Stock Phoenix Contact PTCB E1 Electronic Circuit Breaker 1A, 6 A 48V, DIN Rail RS Stock No. 493-513 Mfr. Part No. 1471917 Subtotal (1 unit) £41.70(exc. VAT) £41.70/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	-	PTCB E1	1	1, 6A	300A	48V	DIN Rail	-	-	-	-	Push-in	6.2mm	55.6mm	UL Listed, UL, EN 61000-6-3, EN 61000-6-2, EN 60068-2-78, EN 60068-2-6, EN 60068-2-30, EN 60068-2-27, EN 50178, cUL Listed	-	-	-
In Stock Phoenix Contact CBM CBM Electronic Circuit Breaker 10A 24V, 4 channels, DIN Rail Type E RS Stock No. 890-3796 Mfr. Part No. 2905743 Subtotal (1 unit) £178.87(exc. VAT) £178.87/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	CBM	CBM	4	10A	300A	24V	DIN Rail	-	Type E	-	130mm	Screw	41mm	121mm	cUL, cULus, EN 61000-6-3, RoHS, UL	-	-	-
In Stock Phoenix Contact PTCB Electronic Circuit Breaker 8A 24V, DIN Rail Type E RS Stock No. 207-2796 Mfr. Part No. 2908262 Subtotal (1 unit) £52.62(exc. VAT) £52.62/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	-	PTCB	1	8A	-	24V	DIN Rail	-	Type E	-	105.8mm	Screw	6.2mm	55.6mm	cUL, cULus, EN 61000-6-3, RoHS, UL	-	-	-
In Stock Phoenix Contact PTCB PTCB E1 Electronic Circuit Breaker 630mA 10V dc, 30 V dc, DIN Rail RS Stock No. 494-813 Mfr. Part No. 1441495 Subtotal (1 unit) £27.29(exc. VAT) £27.29/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	PTCB	PTCB E1	1	630mA	300A	10, 30V dc	DIN Rail	-	-	-	-	Push-in	6.2mm	55.6mm	ANSI/UL 121201 Class I, DNV GL, EN 50178, EN 60068-2-27, EN 60068-2-30, UL 508, UL 2367, NEC Class 2 according to UL 1310, Groups A, EN 61000-6-3, EN 61000-6-2, EN 61000-4-4, EN 60068-2-78, EN 60068-2-6, Di	-	-	-
Temporarily out of stock ABB Emax2 1SDA07 Electronic Circuit Breaker 6300A 690V, 4 channels, Rear Flat Horizontal Mount Type V RS Stock No. 259-3975 Mfr. Part No. 1SDA072027R1 Subtotal (1 unit) £51,812.99(exc. VAT) £51,812.99/unit Quantity	ABB	Electronic Circuit Breaker	Emax2	1SDA07	4	6300A	150kA	690V	Rear Flat Horizontal Mount	-	Type V	-	270mm	Rear Terminal	371mm	1014mm	IEC	-	-	-
In Stock WAGO 857 Electronic Circuit Breaker 500mA 24V, DIN Rail RS Stock No. 303-307 Mfr. Part No. 787-3861/050-000 Subtotal (1 unit) £30.32(exc. VAT) £30.32/unit Quantity	WAGO	Electronic Circuit Breaker	-	857	1	500mA	-	24V	DIN Rail	-	-	-	94mm	Push-in	6mm	97.8mm	EN 61000-6-2 EN 61000-6-3 UL 61010-2-201 DNV UL 2367	-	-	-
In Stock ETA REX12 REX12D-T Electronic Circuit Breaker 6A 24V dc, 2 channels, DIN Rail RS Stock No. 175-0380 Mfr. Part No. REX12D-TA2-100-DC24V-6A/6A Subtotal (1 unit) £62.45(exc. VAT) £62.45/unit Quantity	ETA	Electronic Circuit Breaker	REX12	REX12D-T	2	6A	-	24V dc	DIN Rail	-	-	-	12.5mm	Push-in	12.5mm	80mm	CE, UL, RoHS	-	-	-
In Stock Murrelektronik Limited Mico Pro MICO Electronic Circuit Breaker 10A 24V, 4 channels, DIN Rail RS Stock No. 270-9602 Mfr. Part No. 9000-41094-0101000 Subtotal (1 unit) £124.44(exc. VAT) £124.44/unit Quantity	Murrelektronik Limited	Electronic Circuit Breaker	Mico Pro	MICO	4	10A	40A	24V	DIN Rail	-	-	-	130mm	Spring Clamp	24mm	114mm	UL CA, UL US, EAC, CSA us, CSA CA	-	-	-
In Stock Murrelektronik Limited MICO Electronic Circuit Breaker 10A 24V, 2 channels, DIN Rail RS Stock No. 123-6694 Mfr. Part No. 9000-41042-0401000 Subtotal (1 unit) £94.95(exc. VAT) £94.95/unit Quantity	Murrelektronik Limited	Electronic Circuit Breaker	-	MICO	2	10A	-	24V	DIN Rail	-	-	-	-	Spring Clamp Terminal	36mm	-	RoHS, CSA, cUL, cULus	-	-	-
In Stock Weidmüller maxGUARD AMG OD Electronic Circuit Breaker 12A 24V, 4 channels, DIN Rail RS Stock No. 179-3001 Mfr. Part No. 2122910000 Subtotal (1 box of 10 units) £18.20(exc. VAT) £18.20/box Quantity	Weidmüller	Electronic Circuit Breaker	maxGUARD	AMG OD	4	12A	-	24V	DIN Rail	-	-	-	6.1mm	Push-in	96.5mm	125mm	cULus, CE, RoHS, EAC	-	-	-
In Stock Phoenix Contact CBM Electronic Circuit Breaker 10A 24V, DIN Rail Type E RS Stock No. 890-3806 Mfr. Part No. 2905744 Subtotal (1 unit) £335.05(exc. VAT) £335.05/unit Quantity	Phoenix Contact	Electronic Circuit Breaker	-	CBM	-	10A	-	24V	DIN Rail	-	Type E	-	130mm	Screw	41mm	121mm	UL, RoHS, EN 61000-6-3, cULus, cUL	-	-	-
In Stock ETA ESX10-S Electronic Circuit Breaker 10A 500V, Plug-in RS Stock No. 288-7719 Mfr. Part No. ESX10-TD-101-DC24V-X280 Subtotal (1 unit) £91.72(exc. VAT) £91.72/unit Quantity	ETA	Electronic Circuit Breaker	-	ESX10-S	-	10A	-	500V	Plug-in	-	-	-	78.5mm	Screw	12.5mm	60mm	NEC Class, UL, VDE	-	-	-