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RCCBs

An RCCB or residual-current circuit breaker is a safety device used to protect electrical circuits. RCCBs protect people from electric shocks, and electrocution and help prevent electrical fires.

RS offers an extensive range of high-performance RCCBs and RCDs from leading brands including ABB, Schneider Electric, and Siemens.

How does an RCCB work?

An RCCBs incoming current must equal the outgoing current in any circuit. RCCBs can compare the difference in current values between the live and neutral wires. When appliances are working correctly all current entering the appliance through the live wire leaves the appliance via the neutral wire. If a fault occurs some current can flow through the earth wire if there is no earth this can even flow through you. This results in the unequal current flow coming into the device to what is going out, this difference is referred to as residual current.

What is the difference between an RCCB and an RCD?

An RCD (residual current device) can keep an electrical system safe by preventing fatal electrical shocks. RCDs can also provide protection from electrical fires. An RCCB is essentially an RCD minus the overload protection. They are typically used in applications where the risk of electric shock is limited. For more detailed information, please see our in-depth RCDs guide.

What are the different types of RCCB and RCD?

RCCBs and RCDs are usually mounted on DIN rail. They can be 2, 3, or 4 poles. Varying in current ratings, trip sensitivity, and tripping characteristics. All these specifications should be carefully considered depending on your individual needs and application.

1833 Products showing for RCCBs

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In Stock Eaton xPole Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 10 kA 230V ac RS Stock No. 227-0738 Mfr. Part No. 267448 PFGM-63/2/003-A Subtotal (1 unit) £66.44(exc. VAT) £66.44/unit Quantity	Eaton	-	63A	Residual Current Circuit Breaker	2	xPole	30mA	xPole	Type A	DIN Rail	-	-	-	IEC/EN 61008	Screw	69.5mm	85mm	35mm	-	-	-	10kA
In Stock RS PRO NF14 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A 400V ac RS Stock No. 284-2373 Subtotal (1 unit) £50.83(exc. VAT) £50.83/unit Quantity		-	40A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type A	DIN Rail	-	-	-	IEC/EN 61008, CE, VDE	-	68mm	85mm	70mm	-	-	-	-
In Stock RS Better World Siemens SENTRON Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type AC, 10 kA 230V ac RS Stock No. 231-8387 Mfr. Part No. 5SV4312-0 Subtotal (1 unit) £91.28(exc. VAT) £91.28/unit Quantity	Siemens	-	25A	Residual Current Circuit Breaker	2	SENTRON	30mA	SENTRON	Type AC	DIN Rail	-	-	-	UKCA, CE, VDE, EAC	Screw	70mm	90mm	72mm	Extended Product Life	Yes	-	10kA
In Stock Eaton PXF-A Series Residual Current Circuit Breaker, 40A, 3-Pole, 30 mA, Type A, 500 A 400V ac RS Stock No. 490-466 Mfr. Part No. 236776 PXF-40/4/003-A Subtotal (1 unit) £44.32(exc. VAT) £44.32/unit Quantity	Eaton	-	40A	Residual Current Circuit Breaker	3	PXF	30mA	PXF-A	Type A	DIN Rail	-	-	-	IEC/EN 61008, RoHS	Screw	70.5mm	80mm	70mm	-	-	-	500A
In Stock RS PRO NF14 Series Residual Current Circuit Breaker, 63A, 4-Pole, 30 mA, Type A 400V ac RS Stock No. 284-2375 Subtotal (1 unit) £50.83(exc. VAT) £50.83/unit Quantity		-	63A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type A	DIN Rail	-	-	-	EN60947, RoHS	-	90mm	220mm	145mm	-	-	-	-
In Stock ABB FH200 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 1 kA 230V ac RS Stock No. 186-3460 Mfr. Part No. 2CSF202102R1630 Subtotal (1 unit) £83.22(exc. VAT) £83.22/unit Quantity	ABB	-	63A	Residual Current Circuit Breaker	2	-	30mA	FH200	Type A	DIN Rail	-	-	-	RoHS Compliant, UL Recognised	Screw	69mm	85mm	35mm	-	-	-	1kA
Limited stock RS PRO NF14 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type B 400V ac RS Stock No. 284-2376 Subtotal (1 unit) £310.73(exc. VAT) £310.73/unit Quantity		-	40A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type B	DIN Rail	-	-	-	VDE, IEC/EN 61008, CE	-	73.5mm	85mm	70mm	-	-	-	-
In Stock Eaton PXF-A Series Residual Current Circuit Breaker, 16A, 1-Pole, 30 mA, Type A, 500 A 230V ac RS Stock No. 490-040 Mfr. Part No. 236730 PXF-16/2/003-A Subtotal (1 unit) £93.90(exc. VAT) £93.90/unit Quantity	Eaton	-	16A	Residual Current Circuit Breaker	1	PXF	30mA	PXF-A	Type A	DIN Rail	-	-	-	IEC/EN 61008, RoHS	Screw	70.5mm	80mm	35mm	-	-	-	500A
In Stock Schneider Electric R9R Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A 440V ac RS Stock No. 654-652 Mfr. Part No. R9R22440 Subtotal (1 unit) £100.83(exc. VAT) £100.83/unit Quantity	Schneider Electric	-	40A	Residual Current Circuit Breaker	4	Resi9	30mA	R9R	Type A	DIN Rail	-	-	-	RoHS, EN/IEC 61008-2-1	Tunnel	78.5mm	81mm	72mm	-	-	-	-
In Stock Europa EUR1 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A, 10 kA 415V ac RS Stock No. 210-4753 Mfr. Part No. EUR140.30/4A Subtotal (1 unit) £66.91(exc. VAT) £66.91/unit Quantity	Europa	-	40A	Residual Current Circuit Breaker	4	EUR1	30mA	EUR1	Type A	DIN Rail	-	-	-	IEC 61008, EN 61008	Tunnel	89mm	76mm	-	-	-	-	10kA
In Stock ABB F200 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A, 1 kA 230V ac RS Stock No. 488-6915 Mfr. Part No. 2CSF202101R1250 - F202A-25/0.03 Subtotal (1 unit) £87.15(exc. VAT) £87.15/unit Quantity	ABB	-	25A	Residual Current Circuit Breaker	2	-	30mA	F200	Type A	DIN Rail	-	-	-	IEC/EN 61008, REACH, RoHS, UL 1053	Screw	69mm	85mm	35mm	-	-	-	1kA
In Stock Eaton PKNM Series Residual Current Device, 6A, 2-Pole, 30 mA, Type C, 10 kA 230V ac RS Stock No. 922-8692 Mfr. Part No. 236022 PKNM-6/1N/C/003-A-MW Subtotal (1 unit) £111.48(exc. VAT) £111.48/unit Quantity	Eaton	-	6A	Residual Current Device	2	PKNM	30mA	PKNM	Type C	DIN Rail	-	-	-	IEC/EN 61008	Screw	70.5mm	80mm	70mm	-	-	-	10kA
In Stock Eaton xEffect - FRCmM Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A, 500 A 121V ac RS Stock No. 127-425 Mfr. Part No. 180607 FRCMM-40/2/003-A-110 Subtotal (1 unit) £170.69(exc. VAT) £170.69/unit Quantity	Eaton	-	40A	Residual Current Circuit Breaker	2	xEffect	30mA	xEffect - FRCmM	Type A	DIN Rail	-	-	-	IEC/EN 61008, EN45545-2, RoHS, IEC 61373	Twin-Purpose Terminal	76mm	76mm	35mm	-	-	-	500A
In Stock Schneider Electric R9R Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A 230V ac RS Stock No. 654-672 Mfr. Part No. R9R22225 Subtotal (1 unit) £78.00(exc. VAT) £78.00/unit Quantity	Schneider Electric	-	25A	Residual Current Circuit Breaker	2	Resi9	30mA	R9R	Type A	DIN Rail	-	-	-	EN/IEC 61008-2-1, RoHS	Tunnel	78.5mm	81mm	36mm	-	-	-	-
In Stock RS PRO NF12 Series Residual Current Circuit Breaker, 25A, 2-Pole, 300 mA, Type A 230V ac RS Stock No. 284-2368 Subtotal (1 unit) £31.38(exc. VAT) £31.38/unit Quantity		-	25A	Residual Current Circuit Breaker	2	-	300mA	NF12	Type A	DIN Rail	-	-	-	IEC 6951 to 850°C and IEC 695, EN 609981: 004, EN 6051: 00 A: 006 (S.C. 0..), UL94 V, RoHS, IECEN 6069511	Screw	-	85mm	70mm	-	-	-	-
In Stock Eaton PKNM Series Residual Current Device, 10A, 2-Pole, 30 mA, Type C, 10 kA 230V ac RS Stock No. 922-8715 Mfr. Part No. 236082 PKNM-10/1N/C/003-A-MW Subtotal (1 unit) £111.48(exc. VAT) £111.48/unit Quantity	Eaton	-	10A	Residual Current Device	2	PKNM	30mA	PKNM	Type C	DIN Rail	-	-	-	CE	Screw	70.5mm	80mm	70mm	-	-	-	10kA
In Stock Europa EUR1 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 10 kA 415V ac RS Stock No. 210-4756 Mfr. Part No. EUR163.30/2A Subtotal (1 unit) £46.74(exc. VAT) £46.74/unit Quantity	Europa	-	63A	Residual Current Circuit Breaker	2	EUR1	30mA	EUR1	Type A	DIN Rail	-	-	-	EN 61008, IEC 61008	Tunnel	89mm	76mm	-	-	-	-	10kA
In Stock ABB FS401 Series Residual Current Circuit Breaker, 16A, 1-Pole, 30 mA, Type C, 10 kA 230V ac RS Stock No. 178-106 Mfr. Part No. 2CCL562111E0164 - FS401E-C16/0.03 Subtotal (1 unit) £97.92(exc. VAT) £97.92/unit Quantity	ABB	-	16A	Residual Current Circuit Breaker	1	SmiSSline	30mA	FS401	Type C	DIN Rail	-	-	-	UL 1053, RoHS, REACH, IEC/EN 61008	Screw	75mm	91mm	70mm	-	-	-	10kA
In Stock Legrand Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A RS Stock No. 266-1363 Mfr. Part No. 411651 Subtotal (1 unit) £228.16(exc. VAT) £228.16/unit Quantity	Legrand	-	63A	Residual Current Circuit Breaker	2	DX3	30mA	-	Type A	-	-	-	-	NF EN 61008-1	-	-	-	-	-	-	-	-
In Stock ABB FH200 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type AC, 0.03 A 230V ac RS Stock No. 540-1616 Mfr. Part No. 2CSF202006R1250 FH202 AC-25/0,03 Subtotal (1 unit) £98.38(exc. VAT) £98.38/unit Quantity	ABB	-	25A	Residual Current Circuit Breaker	2	RCCBs F200	30mA	FH200	Type AC	DIN Rail	-	-	-	CE	Screw	85mm	85mm	35mm	-	-	-	0.03A