Circuit Protection

Circuit Protection: MCBs, RCDs and RCBOs

Circuit protection devices guard final circuits against overload, short circuit and earth-leakage faults. This range stocks ABB System pro M compact S200 MCBs, DS200 RCBOs and F200 RCDs, Mersen fuses and fuse gear, Chint NB1 and NL1, IMO, Lovato Electric P1 and Finder devices, in B, C, D and K curves from 0.5 A to 125 A.

Filter by brand, current rating, curve, pole count and breaking capacity. For higher currents see MCCB & ACB; for DC-rated breakers see PV MCB; for the boards they fit see Power Distribution Systems.

Showing 12,585 products

Product Key Specs Price Qty Stock Actions
imo b10b3n125a mcb 10ka, b curve 3p+n 125a 415vac vde IMO B10B3N125A miniature circuit breaker, a 125 A B curve 3 pole plus neutral MCB…
imo b10b3n125a mcb 10ka, b curve 3p+n 125a 415vac vde IMO B10B3N125A miniature circuit breaker, a 125 A B curve 3 pole plus neutral MCB…
£82.13 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10B3N125A
NB3LEU-A-B32 Chint RCBO 32A B Curve 30mA 10kA 1 Pole + Neutral Chint NB3LEU-B32 RCBO, a 32 A B curve 30 mA 1P+N residual current operated circuit…
NB3LEU-A-B32 Chint RCBO 32A B Curve 30mA 10kA 1 Pole + Neutral Chint NB3LEU-B32 RCBO, a 32 A B curve 30 mA 1P+N residual current operated circuit…
£45.13 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NB3LEU-B32
MERSEN FUSE CC US HOLDER CLAMP 1P USGCC1 Mersen USGCC1 UltraSafe single-pole Class CC fuse holder rated at 30 A and 600 V…
MERSEN FUSE CC US HOLDER CLAMP 1P USGCC1 Mersen USGCC1 UltraSafe single-pole Class CC fuse holder rated at 30 A and 600 V…
£9.12 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: USGCC1
imo b10c1032a mcb 10ka, c curve 1 pole, 32 amp vde IMO B10C1032A single-pole miniature circuit breaker with 32 A current rating, C curve tripping characteristic…
imo b10c1032a mcb 10ka, c curve 1 pole, 32 amp vde IMO B10C1032A single-pole miniature circuit breaker with 32 A current rating, C curve tripping characteristic…
£6.33 ex. VAT
In Stock Available for delivery
SKU: B10C1032A
chint mcb nbh8-40-b04 4a nbh8-40 mcbs b curve Chint NBH8-40-B04 1P+N B curve 4 A miniature circuit breaker designed for overload and short-circuit…
chint mcb nbh8-40-b04 4a nbh8-40 mcbs b curve Chint NBH8-40-B04 1P+N B curve 4 A miniature circuit breaker designed for overload and short-circuit…
With Overload
£16.66 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NBH8-40-B04
MERSEN FUSE USGM3I USGM3I Mersen USGM3I UltraSafe 3-pole Midget fuse holder with LED blown fuse indication, WAGO CAGE CLAMP…
MERSEN FUSE USGM3I USGM3I Mersen USGM3I UltraSafe 3-pole Midget fuse holder with LED blown fuse indication, WAGO CAGE CLAMP…
£32.38 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: USGM3I
imo b10c2040a mcb 10ka, c curve 2 pole, 40 amp vde IMO B10C2040A miniature circuit breaker, a 40A two pole C curve MCB with 10kA breaking…
imo b10c2040a mcb 10ka, c curve 2 pole, 40 amp vde IMO B10C2040A miniature circuit breaker, a 40A two pole C curve MCB with 10kA breaking…
£13.43 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10C2040A
chint mcb nbh8-40-c25 25a nbh8-40 mcbs c curve Chint NBH8-40-C25 25A C curve 1P+N miniature circuit breaker designed for overload and short-circuit protection…
chint mcb nbh8-40-c25 25a nbh8-40 mcbs c curve Chint NBH8-40-C25 25A C curve 1P+N miniature circuit breaker designed for overload and short-circuit protection…
With Overload
£16.66 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NBH8-40-C25
MERSEN FUSE 400V SA 0,63 A 6.32 MI6SA40V0,63 Mersen V078908 MI6SA40V0.63 medium time-lag 6.3 x 32 mm miniature fuse rated at 0.63 A…
MERSEN FUSE 400V SA 0,63 A 6.32 MI6SA40V0,63 Mersen V078908 MI6SA40V0.63 medium time-lag 6.3 x 32 mm miniature fuse rated at 0.63 A…
  • 400 V
£5.93 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V078908
imo b10c3100a mcb 10ka, c curve 3 pole, 100 amp IMO B10C3100A 100A 3 pole C curve miniature circuit breaker with 10kA short circuit capacity…
imo b10c3100a mcb 10ka, c curve 3 pole, 100 amp IMO B10C3100A 100A 3 pole C curve miniature circuit breaker with 10kA short circuit capacity…
£61.61 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10C3100A
MERSEN FUSE NH 000 80A 500V AM NH000AM50V80 Mersen NH000AM50V80 DIN NH000 aM fuse-link rated at 80 A and 500 V AC, with…
MERSEN FUSE NH 000 80A 500V AM NH000AM50V80 Mersen NH000AM50V80 DIN NH000 aM fuse-link rated at 80 A and 500 V AC, with…
  • 500 V
£10.59 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NH000AM50V80
MERSEN FUSE 690V FA 0,16 A 6.32 MI6FA69V0,16 Mersen V086452 MI6FA69V0.16 very fast-acting 6.3 x 32 mm semiconductor miniature fuse rated at 0.16…
MERSEN FUSE 690V FA 0,16 A 6.32 MI6FA69V0,16 Mersen V086452 MI6FA69V0.16 very fast-acting 6.3 x 32 mm semiconductor miniature fuse rated at 0.16…
  • 690 V
£7.52 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V086452
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