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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 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.

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In Stock RS PRO NF12 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A 230V ac RS stock no. 284-2371 Subtotal (1 unit) R 1 129,25(exc. VAT) R 1 129,25/unit Quantity		-	63A	Residual Current Circuit Breaker	2	-	30mA	NF12	Type A	DIN Rail	-	-	-	RoHS	-	90mm	85mm	70mm	-	-	-	-
In Stock RS PRO NF14 Series Residual Current Circuit Breaker, 40A, 4-Pole, 300 mA, Type A 400V ac RS stock no. 284-2374 Subtotal (1 unit) R 1 134,19(exc. VAT) R 1 134,19/unit Quantity		-	40A	Residual Current Circuit Breaker	4	-	300mA	NF14	Type A	DIN Rail	-	-	-	CE, IEC/EN 61008, VDE	-	68mm	85mm	70mm	-	-	-	-
In Stock RS PRO NF12 Series Residual Current Circuit Breaker, 40A, 2-Pole, 300 mA, Type A 230V ac RS stock no. 284-2370 Subtotal (1 unit) R 794,43(exc. VAT) R 794,43/unit Quantity		-	40A	Residual Current Circuit Breaker	2	-	300mA	NF12	Type A	DIN Rail	-	-	-	IEC/EN 61008, CE, VDE	-	-	85mm	70mm	-	-	-	-
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) R 1 264,74(exc. VAT) R 1 264,74/unit Quantity		-	63A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type A	DIN Rail	-	-	-	EN60947, RoHS	-	90mm	220mm	145mm	-	-	-	-
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) R 1 291,94(exc. VAT) R 1 291,94/unit Quantity		-	40A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type A	DIN Rail	-	-	-	IEC/EN 61008, CE, VDE	-	68mm	85mm	70mm	-	-	-	-
Temporarily out of stock RS PRO NF12 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A 230V ac RS stock no. 284-2367 Subtotal (1 unit) R 818,32(exc. VAT) R 818,32/unit Quantity		-	25A	Residual Current Circuit Breaker	2	-	30mA	NF12	Type A	DIN Rail	-	35 mm	-	IEC/EN60044-8 & IEC/EN61869-2	-	-	85mm	70mm	-	-	-	-
Temporarily out of stock RS PRO NF12 Series Residual Current Circuit Breaker, 16A, 2-Pole, 10 mA, Type A 230V ac RS stock no. 284-2366 Subtotal (1 unit) R 905,23(exc. VAT) R 905,23/unit Quantity		-	16A	Residual Current Circuit Breaker	2	-	10mA	NF12	Type A	DIN Rail	-	-	-	EN 60715, CSA, IEC/EN 60204, IEC/EN 60947-2, UL 508, IEC/EN 60947-5-1, IEC/EN 60947-4-1	Screw	-	85mm	70mm	-	-	-	-
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) R 7 659,15(exc. VAT) R 7 659,15/unit Quantity		-	40A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type B	DIN Rail	-	-	-	VDE, IEC/EN 61008, CE	-	73.5mm	85mm	70mm	-	-	-	-
Temporarily out of stock RS PRO NF14 Series Residual Current Circuit Breaker, 25A, 4-Pole, 30 mA, Type A 400V ac RS stock no. 284-2372 Subtotal (1 unit) R 1 256,41(exc. VAT) R 1 256,41/unit Quantity		-	25A	Residual Current Circuit Breaker	4	-	30mA	NF14	Type A	DIN Rail	-	-	-	CE, IEC/EN 61008, VDE	-	68mm	85mm	70mm	-	-	-	-
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) R 806,50(exc. VAT) R 806,50/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 RS PRO NF12 Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A 230V ac RS stock no. 284-2369 Subtotal (1 unit) R 860,81(exc. VAT) R 860,81/unit Quantity		-	40A	Residual Current Circuit Breaker	2	-	30mA	NF12	Type A	DIN Rail	-	-	-	IEC/EN 61008, CE, VDE	-	-	85mm	70mm	-	-	-	-
In Stock ABB F200 Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type B, 1 kA 230V ac RS stock no. 289-1618 Mfr. Part No. 2CSF202568R1400 Subtotal (1 unit) R 9 526,90(exc. VAT) R 9 526,90/unit Quantity	ABB	-	40A	Residual Current Circuit Breaker	2	-	30mA	F200	Type B	DIN Rail	-	-	-	IEC/EN 61008	Screw	69mm	85mm	35mm	-	-	-	1kA
In Stock Schneider Electric EZ9 Series Residual Current Circuit Breaker, 100A, 2-Pole, 30 mA, Type A 230V ac RS stock no. 654-224 Mfr. Part No. EZ9R46291 Subtotal (1 unit) R 896,61(exc. VAT) R 896,61/unit Quantity	Schneider Electric	-	100A	Residual Current Circuit Breaker	2	Easy9	30mA	EZ9	Type A	DIN Rail	-	-	-	IEC 61008-1, RoHS, BS EN 61008-1	Tunnel	72mm	82mm	36mm	-	-	-	-
In Stock RS Better World Schneider Electric A9Z Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A-SI, 1500 A 240V ac RS stock no. 212-296 Mfr. Part No. A9Z31225 Subtotal (1 unit) R 4 411,10(exc. VAT) R 4 411,10/unit Quantity	Schneider Electric	-	25A	Residual Current Circuit Breaker	2	Acti9	30mA	A9Z	Type A-SI	DIN Rail	-	-	-	EN/IEC 61008-1 EN/IEC 61008-2-1	-	73mm	91mm	36mm	-	Yes	Byggvarubedömningen	1500A
In Stock Eaton xEffect - FRCmM Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A, 10 kA 440V ac RS stock no. 127-422 Mfr. Part No. 180605 FRCMM-25/2/003-A-110 Subtotal (1 unit) R 3 705,22(exc. VAT) R 3 705,22/unit Quantity	Eaton	-	25A	Residual Current Circuit Breaker	2	xEffect	30mA	xEffect - FRCmM	Type A	DIN Rail	-	-	-	IEC 61373, EN45545-2, IEC/EN 61008	Twin-Purpose Terminal	76mm	80mm	35mm	-	-	-	10kA
In Stock Eaton PKNM Series Residual Current Device, 25A, 2-Pole, 30 mA, Type B, 10 kA 230V ac RS stock no. 922-8746 Mfr. Part No. 236269 PKNM-25/1N/B/003-A-MW Subtotal (1 unit) R 2 790,53(exc. VAT) R 2 790,53/unit Quantity	Eaton	-	25A	Residual Current Device	2	PKNM	30mA	PKNM	Type B	DIN Rail	-	-	-	IEC/EN 61439, IEC 60947-2, IEC/EN 61009	Screw	70.5mm	80mm	70mm	-	-	-	10kA
In Stock Schneider Electric Acti9 iIG40K Series Residual Current Circuit Breaker, 40A, 3+N-Pole, 30 mA, Type AC, 500 A 230V ac RS stock no. 238-3472 Mfr. Part No. A9R69740 Subtotal (1 unit) R 7 396,48(exc. VAT) R 7 396,48/unit Quantity	Schneider Electric	-	40A	Residual Current Circuit Breaker	3+N	Acti9	30mA	Acti9 iIG40K	Type AC	DIN Rail	-	-	-	EN/IEC 61008-2-1	Screw	74mm	85mm	36mm	-	-	-	500A
In Stock Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A-SI, 1500 A 240V ac RS stock no. 276-8738 Mfr. Part No. A9R31240 Subtotal (1 unit) R 4 661,45(exc. VAT) R 4 661,45/unit Quantity	Schneider Electric	-	40A	Residual Current Circuit Breaker	2	Acti9	30mA	Acti9 iID	Type A-SI	DIN Rail	-	-	-	EN/IEC 61008-1	Single Terminal	73.5mm	91mm	36mm	-	-	-	1500A
In Stock Eaton PFIM Series Residual Current Device, 40A, 4-Pole, 30 mA, Type A, 10 kA 230V, 400 V RS stock no. 922-8664 Mfr. Part No. 235439 PFIM-40/4/003-A-MW Subtotal (1 unit) R 4 473,60(exc. VAT) R 4 473,60/unit Quantity	Eaton	-	40A	Residual Current Device	4	PFIM	30mA	PFIM	Type A	DIN Rail	-	-	-	CE	Screw	70.5mm	80mm	70mm	-	-	-	10kA
In Stock Schneider Electric Acti9 iC60 Series Residual Current Device, 25A, 2-Pole, 30 mA, Type AC 240V ac RS stock no. 734-9071 Mfr. Part No. A9Q11225 Subtotal (1 unit) R 5 470,93(exc. VAT) R 5 470,93/unit Quantity	Schneider Electric	-	25A	Residual Current Device	2	Acti9	30mA	Acti9 iC60	Type AC	DIN Rail	-	-	-	RoHS, EU, REACH, EN/IEC 61009-2-1, VDE	Tunnel	73mm	91mm	36mm	-	-	-	-