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 b10c4004a mcb 10ka, c curve 4 pole, 4a IMO B10C4004A miniature circuit breaker with 4 A rating, C curve tripping characteristic, 10 kA…
imo b10c4004a mcb 10ka, c curve 4 pole, 4a IMO B10C4004A miniature circuit breaker with 4 A rating, C curve tripping characteristic, 10 kA…
£40.67 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10C4004A
MERSEN FUSE NH 000 16A 400V GG NH000GG40V16 Mersen NH000GG40V16 DIN NH size 000 gG fuse-link rated at 16 A and 400 V…
MERSEN FUSE NH 000 16A 400V GG NH000GG40V16 Mersen NH000GG40V16 DIN NH size 000 gG fuse-link rated at 16 A and 400 V…
  • 400 V
£8.04 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NH000GG40V16
MERSEN FUSE 250V SA 0,063 A 6.32 MI6SA25V0,063 Mersen V097745 MI6SA25V0.063 medium time-lag 6.3 x 32 mm ceramic miniature fuse rated at 0.063…
MERSEN FUSE 250V SA 0,063 A 6.32 MI6SA25V0,063 Mersen V097745 MI6SA25V0.063 medium time-lag 6.3 x 32 mm ceramic miniature fuse rated at 0.063…
  • 250 V
£7.49 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V097745
imo b10d1020a mcb 10ka, d curve 1 pole, 20 amp vde IMO B10D1020A 20A single pole miniature circuit breaker with D curve tripping characteristic and 10kA…
imo b10d1020a mcb 10ka, d curve 1 pole, 20 amp vde IMO B10D1020A 20A single pole miniature circuit breaker with D curve tripping characteristic and 10kA…
£7.09 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10D1020A
MERSEN FUSE NH 000 6A 400V GG SGL NH000GG40V6-1 Mersen NH000GG40V6-1 DIN NH000 gG fuse link rated at 6 A and 400 V AC…
MERSEN FUSE NH 000 6A 400V GG SGL NH000GG40V6-1 Mersen NH000GG40V6-1 DIN NH000 gG fuse link rated at 6 A and 400 V AC…
  • 400 V
£9.45 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NH000GG40V6-1
MERSEN FUSE BJU42V020SA BJU42V020SA The BS88 gU Type 130x36 fuse-link provides reliable circuit protection for industrial and commercial low-voltage…
MERSEN FUSE BJU42V020SA BJU42V020SA The BS88 gU Type 130x36 fuse-link provides reliable circuit protection for industrial and commercial low-voltage…
With Overload
£41.28 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V1003899
imo b10d2050a mcb 10ka, d curve 2 pole, 50 amp IMO B10D2050A two pole miniature circuit breaker with a 50 A current rating, D curve…
imo b10d2050a mcb 10ka, d curve 2 pole, 50 amp IMO B10D2050A two pole miniature circuit breaker with a 50 A current rating, D curve…
£22.74 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10D2050A
MERSEN FUSE NH 000 2A 500V GG NH000GG50V2 Mersen NH000GG50V2 DIN NH Size 000 gG fuse link rated at 2 A, 500 V…
MERSEN FUSE NH 000 2A 500V GG NH000GG50V2 Mersen NH000GG50V2 DIN NH Size 000 gG fuse link rated at 2 A, 500 V…
  • 500 V
£6.95 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NH000GG50V2
MERSEN FUSE Terminal clamp 1,5-35mm²/5mm 1.000.777 Why Choose the MERSEN FUSE Terminal clamp 1,5-35mm²/5mm 1.000.777?
MERSEN FUSE Terminal clamp 1,5-35mm²/5mm 1.000.777 Why Choose the MERSEN FUSE Terminal clamp 1,5-35mm²/5mm 1.000.777?
£2.71 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V1026462
imo b10d3125a mcb 10ka, d curve 3 pole, 125 amp IMO B10D3125A three pole 125 A D Curve miniature circuit breaker with 10 kA breaking…
imo b10d3125a mcb 10ka, d curve 3 pole, 125 amp IMO B10D3125A three pole 125 A D Curve miniature circuit breaker with 10 kA breaking…
£98.72 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: B10D3125A
MERSEN FUSE NH 000 40A 500V GG-9PCS NH000GG50V40 Mersen NH000GG50V40 DIN NH Size 000 gG fuse link rated at 40 A, 500 V…
MERSEN FUSE NH 000 40A 500V GG-9PCS NH000GG50V40 Mersen NH000GG50V40 DIN NH Size 000 gG fuse link rated at 40 A, 500 V…
  • 500 V
£4.71 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: NH000GG50V40
MERSEN FUSE 690V FA 0,1A 6.32 AL MI6FAP69V0,1 Mersen V208214 MI6FAP69V0.1 high-speed 6.3 x 32 mm semiconductor miniature fuse rated at 0.1 A…
MERSEN FUSE 690V FA 0,1A 6.32 AL MI6FAP69V0,1 Mersen V208214 MI6FAP69V0.1 high-speed 6.3 x 32 mm semiconductor miniature fuse rated at 0.1 A…
  • 690 V
£8.02 ex. VAT
Manufacturer Lead Time Contact us for availability
SKU: V208214
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