Square D Instantaneous Industrial Circuit Breakers

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Circuit Breakers & Disconnectors
- Circuit Breakers
- Circuit Breaker Accessories
- Disconnectors & Load Switches
- Ground Fault Interrupters & RCDs

2,018 results

SQUARE D 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000
Pre-owned · Square D
£7.95
Free postage
Click & Collect
313 sold
SQUARE D RCBO QOE TYPE 6A 10A 16A 20A 32A 40A TYPE B C 1 POLE OLD TYPE PLUG IN
Pre-owned · Square D
£43.94 to £159.87
Free postage
Click & Collect
98 sold
Square D 250 Amp Triple Pole 250A I-Line MCCB Moulded Case Breaker SKA3250
Pre-owned · Square D
£234.95
Free postage
Click & Collect
Square D 200 Amp Triple Pole 200A I-Line MCCB Moulded Case Breaker SKA3200
Pre-owned · Square D
£174.95
Free postage
Click & Collect
New listingJoblot 9 Square d M3 Triple Pole MCB Circuit Breaker QOX QO-X BRAND NEW
Pre-owned · Square D
£0.99
or Best Offer
£6.95 P&P
0 bids
6d 5h
New listingJoblot 134 Square D KQ Loadcentre MCB's Circuit Breakers - NO RESERVE
Pre-owned · Square D
£0.99
£9.95 P&P
1 bid
6d 5h
SQUARE D 20 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ 10B120
Pre-owned · Square D
(1)
£5.47
Free postage
Click & Collect
69 sold
SQUARE D 20 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ10C120
Pre-owned · Square D
£4.99
Free postage
SQUARE D 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER SQO 132EB6
Pre-owned · Square D
(4)
£4.95
Free postage
353 sold
Wylex NH NSB Range Mk 2 6a to 50a Single Pole Type B MCB's rated @ 6kA Used B1U
Brand new · Square D
£6.50 to £7.95
Free postage
Click & Collect
Square D QOE MCB Circuit Breaker SP DP TP 6kA 10kA Type B C D - Various Options
Pre-owned · Square D
£5.95 to £24.95
(£5.95/Unit)
Free postage
Click & Collect
SQUARE D 16 AMP CURVE B 6kA MCB CIRCUIT BREAKER SQO 116EB6
Pre-owned · Square D
£4.95
Free postage
195 sold
SQUARE D 100 AMP 25kA TRIPLE POLE MCCB I-LINE CD RANGE CDAE34100
Pre-owned · Square D
£103.36
Free postage
Click & Collect
Square D MCCB 16 Amp Triple Pole 3 Phase 16A CN Range I-Line CNAE34016
Pre-owned · Square D
£104.95
Free postage
Click & Collect
Square D 63 Amp Triple Pole 3 Phase 63A Series 2 i-Line Breaker SFA3063 MCCB
Pre-owned · Square D
£57.87
or Best Offer
Free postage
Click & Collect
Square D MCCB 32 Amp Triple Pole 3 Phase 32A CD Range I-Line CDAE34032
Pre-owned · Square D
£52.68
or Best Offer
£3.71 P&P
Click & Collect
SQUARE D 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER DOM50B6 DOMEA
Brand new · Square D
(1)
£11.75
Free postage
Click & Collect
SQUARE D 16 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ 10C116
Pre-owned · Square D
£4.95
Free postage
55 sold
SQUARE D KQ Type B Single Pole MCB's 50A, 40A, 32A, 25A, 20A, 16A, 10A, 6A
Pre-owned · Square D
£5.00 to £7.50
Free postage
Click & Collect
62 sold
New listingSquare D QOE MCB 40 Amp Single Pole Qwikline Breaker Type C 40A QO140EC10 10000
Pre-owned · Square D
£41.95
Free postage
Click & Collect
New listingSquare D MCCB 63 Amp Triple Pole 3 Phase 63A CN Range I-Line CNAE34063
Pre-owned · Square D
£124.95
Free postage
Click & Collect
SQUARE D QO316EC10 QOE MCB 16 AMP TRIPLE POLE 3 PHASE BREAKER TYPE C16 10000
Pre-owned · Square D
£22.49
Free postage
Click & Collect
SQUARE D 16 AMP TYPE 1 M6 MCB CIRCUIT BREAKER QOE
Pre-owned · Square D
£7.23
Free postage
Click & Collect
68 sold
SQUARE D 20 AMP TYPE 3 M9 MCB CIRCUIT BREAKER QOE
Pre-owned · Square D
£7.54
Free postage
Click & Collect
New listingSquare D MCCB 100 Amp Triple Pole 3 Phase 100A CN Range I-Line CNAE34100
Pre-owned · Square D
£169.95
Free postage
Click & Collect
Square D SQO 32 Amp MCB Type B Single Pole Circuit Breaker B32 SQO132EB6
Pre-owned · Square D
(10)
£4.45
Free postage
Square D MCB 6 Amp Single Pole Breaker Type B 6A SQO SQO106EB6
Pre-owned · Square D
(2)
£4.95
Free postage
SQUARE D 6 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000
Pre-owned · Square D
£5.83
Free postage
Click & Collect
183 sold
Square D MCCB 80Amp Triple Pole 3 Phase 80A CD Range I-Line
Pre-owned · Square D
£57.88
or Best Offer
£3.71 P&P
SQUARE D CN RANGE 160 AMP TRIPLE POLE CNAE34160 ADJUSTABLE MCCB CIRCUIT BREAKER
Pre-owned · Square D
(1)
£52.68
or Best Offer
£3.38 P&P
Square D 63 Amp Double Pole 3 Phase 63A Series 2 i-Line Breaker SFA2063AB MCCB
Pre-owned · Square D
£37.07
or Best Offer
£2.00 P&P
Click & Collect
Square D QOE MCB 63 Amp Triple Pole 3 Phase Type C 63A Indicator QO363EC10
Pre-owned · Square D
£97.95
Free postage
Click & Collect
Square D 45A Amp Circuit Breaker Type 3 QOE M9
New (other) · Square D
£25.00
(£25.00/Unit)
Free postage
Click & Collect
SQUARE D 100 AMP 25kA TRIPLE POLE MCCB SFA3100 SERIES 2
Pre-owned · Square D
£84.76
Free postage
Click & Collect
SQUARE D 32 AMP CURVE C 10kA MCB CIRCUIT BREAKER QOE 10000
Pre-owned · Square D
£5.20
Free postage
Click & Collect
SQUARE D 40 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ10C140
Pre-owned · Square D
£7.51
Free postage
Click & Collect
SQUARE D 32 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ 10B132
Pre-owned · Square D
£5.08
Free postage
Click & Collect
159 sold
Square D QOE MCB Circuit Breaker 6kA Type B Single Pole Plug On Qwikline QO
Pre-owned · Square D
£5.95 to £23.95
(£5.95/Unit)
Free postage
Click & Collect
Square D MCCB 40 Amp Triple Pole 3 Phase 40A CD Range I-Line
Pre-owned · Square D
£57.88
or Best Offer
£3.38 P&P
SQUARE D 63 AMP CURVE C 10kA TRIPLE POLE MCB CIRCUIT BREAKER QOE QO363EC10
Pre-owned · Square D
£40.72
or Best Offer
£2.69 P&P
SQUARE D 6 AMP TYPE 2 M9 MCB CIRCUIT BREAKER QOE
Pre-owned · Square D
£6.39
Free postage
Click & Collect
Wylex NH NSB Range - 6a to 50a Single Pole Type B MCB's rated @ 6kA Unused B1N
Brand new · Square D
£12.95 to £19.95
Free postage
Click & Collect
Square D Load Centre - KQ 10amp, 16amp, 20amp, 32amp, 40amp, type B & C MCBs
Pre-owned · Square D
£4.10 to £9.99
Free postage
SQUARE D 16 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000
Pre-owned · Square D
£7.99
Free postage
Click & Collect
92 sold
Square D MCCB 63 Amp Triple Pole 3 Phase 63A Series 2 i-Line Breaker SFA3063
Pre-owned · Square D
(1)
£104.95
Free postage
Click & Collect
SQUARE D KQ Type B C D Single Pole MCB 63 50A 40A 32A 25A 20A 16A 10A 6 Amp
Pre-owned · Square D
£4.75 to £8.99
Free postage
SQUARE D 20 AMP TYPE C 10kA MCB CIRCUIT BREAKER QOE 10000 C20 20A Triple Pole
Pre-owned · Square D
(1)
£14.44
or Best Offer
Free postage
Click & Collect
Only 1 left.
Square D/Schneider KQ Triple Pole MCB 63A, 50A, 32A, 25A, 16A 6A Type D 10k 3P
Pre-owned · Square D
£16.50 to £18.50
Free postage
Click & Collect
16 sold
SQUARE D CNAE34032 32 AMP 25kA TRIPLE POLE MCCB 6kV 500V
Pre-owned · Square D
£75.00
or Best Offer
£5.00 P&P
Click & Collect
Square D QO-X 3 Pole MCB 100A, 60A, 32A, 30A, 15A. Type 4 M3 BS3871 Triple Pole
Pre-owned · Square D
£12.50 to £30.00
Free postage
Click & Collect
New listingSquare D QOE MCB 10 Amp Single Pole Qwikline Breaker Type C 10A QO110EC10 10000
Pre-owned · Square D
(1)
£7.95
Free postage
Click & Collect
SQUARE D CDAE34032 25 to 32a I-LINE PLUG-ON TRIPLE POLE MCCB STOCK K3440
Pre-owned · Square D
£70.00
£10.00 P&P
Square D Qwikline QOE - 6a to 63a Single Pole Type C MCB's rated @ 6kA Used C1U
Pre-owned · Square D
£8.75 to £16.95
Free postage
Click & Collect
New listingSQUARE D 63 AMP 12.5kA MCCB SFA1063C
Pre-owned · Square D
£44.95
Free postage
SQUARE D QOE C16A 10kA TRIPLE POLE MCB CIRCUIT BREAKER , SENT FAST
Pre-owned · Square D
£18.00
or Best Offer
Free postage
Click & Collect
SQUARE D 6 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ10B106
Pre-owned · Square D
(2)
£5.31
Free postage
Click & Collect
SQUARE D 20 AMP TYPE 2 M6 MCB CIRCUIT BREAKER QOE
Pre-owned · Square D
£8.09
Free postage
Click & Collect
75 sold
SQUARE D 32 AMP TYPE 3 M9 TRIPLE POLE MCB CIRCUIT BREAKER QOE
Pre-owned · Square D
£25.86
Free postage
Click & Collect
Square D MCCB 250 Amp Triple Pole 3 Phase 250A CN Range I-Line CNAE34250
Pre-owned · Square D
£259.95
Free postage
Click & Collect
Square D 50 Amp Triple Pole 3 Phase 50A Series 2 i-Line Breaker SFA3050 MCCB
Pre-owned · Square D
£37.07
or Best Offer
£2.00 P&P
Click & Collect

Best selling

See all

Square D Type QOE B6 6 Amp Single Pole MCB Miniature Circuit Breaker QO106EB10
£5.90 New
£4.50 Used
Square D 16 Amp Type B 6ka MCB Circuit Breaker Domae DOM16B6
£7.25 New
£4.99 Used
Square D QOE 20 Amp Type C 20a Triple Pole 3 Phase Breaker QO320EC10 MCB 10000
(2)
£40.00 New
£16.50 Used
Square D MCB 45 Amp Single Pole Circuit Breaker B45 Type B 45a Domae DOM45B6
(2)
Square D 45 Amp 3 KA MCB Circuit Breaker Qo X QOXD145
(1)
Square D CDAE34100 MCCB I-Line Circuit Braker
£95.00 New
£75.00 Used
Square D KQ10B116 16 Amp MCB Type B Single Pole Circuit Breaker B16
(1)
£4.00 New
£3.95 Used
Square D KQ10B132 LOADCENTRE MCB 32 Amp Type B Single Pole B32 BRAND
(2)
£4.15 New
£3.82 Used

Current Rating

Square D Instantaneous Industrial Circuit Breakers

Shop by category

2,018 results

SQUARE D 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000

SQUARE D RCBO QOE TYPE 6A 10A 16A 20A 32A 40A TYPE B C 1 POLE OLD TYPE PLUG IN

Square D 250 Amp Triple Pole 250A I-Line MCCB Moulded Case Breaker SKA3250

Square D 200 Amp Triple Pole 200A I-Line MCCB Moulded Case Breaker SKA3200

New listingJoblot 9 Square d M3 Triple Pole MCB Circuit Breaker QOX QO-X BRAND NEW

New listingJoblot 134 Square D KQ Loadcentre MCB's Circuit Breakers - NO RESERVE

SQUARE D 20 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ 10B120

SQUARE D 20 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ10C120

SQUARE D 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER SQO 132EB6

Wylex NH NSB Range Mk 2 6a to 50a Single Pole Type B MCB's rated @ 6kA Used B1U

Square D QOE MCB Circuit Breaker SP DP TP 6kA 10kA Type B C D - Various Options

SQUARE D 16 AMP CURVE B 6kA MCB CIRCUIT BREAKER SQO 116EB6

SQUARE D 100 AMP 25kA TRIPLE POLE MCCB I-LINE CD RANGE CDAE34100

Square D MCCB 16 Amp Triple Pole 3 Phase 16A CN Range I-Line CNAE34016

Square D 63 Amp Triple Pole 3 Phase 63A Series 2 i-Line Breaker SFA3063 MCCB

Square D MCCB 32 Amp Triple Pole 3 Phase 32A CD Range I-Line CDAE34032

SQUARE D 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER DOM50B6 DOMEA

SQUARE D 16 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ 10C116

SQUARE D KQ Type B Single Pole MCB's 50A, 40A, 32A, 25A, 20A, 16A, 10A, 6A

New listingSquare D QOE MCB 40 Amp Single Pole Qwikline Breaker Type C 40A QO140EC10 10000

New listingSquare D MCCB 63 Amp Triple Pole 3 Phase 63A CN Range I-Line CNAE34063

SQUARE D QO316EC10 QOE MCB 16 AMP TRIPLE POLE 3 PHASE BREAKER TYPE C16 10000

SQUARE D 16 AMP TYPE 1 M6 MCB CIRCUIT BREAKER QOE

SQUARE D 20 AMP TYPE 3 M9 MCB CIRCUIT BREAKER QOE

New listingSquare D MCCB 100 Amp Triple Pole 3 Phase 100A CN Range I-Line CNAE34100

Square D SQO 32 Amp MCB Type B Single Pole Circuit Breaker B32 SQO132EB6

Square D MCB 6 Amp Single Pole Breaker Type B 6A SQO SQO106EB6

SQUARE D 6 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000

Square D MCCB 80Amp Triple Pole 3 Phase 80A CD Range I-Line

SQUARE D CN RANGE 160 AMP TRIPLE POLE CNAE34160 ADJUSTABLE MCCB CIRCUIT BREAKER

Square D 63 Amp Double Pole 3 Phase 63A Series 2 i-Line Breaker SFA2063AB MCCB

Square D QOE MCB 63 Amp Triple Pole 3 Phase Type C 63A Indicator QO363EC10

Square D 45A Amp Circuit Breaker Type 3 QOE M9

SQUARE D 100 AMP 25kA TRIPLE POLE MCCB SFA3100 SERIES 2

SQUARE D 32 AMP CURVE C 10kA MCB CIRCUIT BREAKER QOE 10000

SQUARE D 40 AMP CURVE C 10kA MCB CIRCUIT BREAKER KQ10C140

SQUARE D 32 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ 10B132

Square D QOE MCB Circuit Breaker 6kA Type B Single Pole Plug On Qwikline QO

Square D MCCB 40 Amp Triple Pole 3 Phase 40A CD Range I-Line

SQUARE D 63 AMP CURVE C 10kA TRIPLE POLE MCB CIRCUIT BREAKER QOE QO363EC10

SQUARE D 6 AMP TYPE 2 M9 MCB CIRCUIT BREAKER QOE

Wylex NH NSB Range - 6a to 50a Single Pole Type B MCB's rated @ 6kA Unused B1N

Square D Load Centre - KQ 10amp, 16amp, 20amp, 32amp, 40amp, type B & C MCBs

SQUARE D 16 AMP CURVE B 6kA MCB CIRCUIT BREAKER QOE 6000

Square D MCCB 63 Amp Triple Pole 3 Phase 63A Series 2 i-Line Breaker SFA3063

SQUARE D KQ Type B C D Single Pole MCB 63 50A 40A 32A 25A 20A 16A 10A 6 Amp

SQUARE D 20 AMP TYPE C 10kA MCB CIRCUIT BREAKER QOE 10000 C20 20A Triple Pole

Square D/Schneider KQ Triple Pole MCB 63A, 50A, 32A, 25A, 16A 6A Type D 10k 3P

SQUARE D CNAE34032 32 AMP 25kA TRIPLE POLE MCCB 6kV 500V

Square D QO-X 3 Pole MCB 100A, 60A, 32A, 30A, 15A. Type 4 M3 BS3871 Triple Pole

New listingSquare D QOE MCB 10 Amp Single Pole Qwikline Breaker Type C 10A QO110EC10 10000

SQUARE D CDAE34032 25 to 32a I-LINE PLUG-ON TRIPLE POLE MCCB STOCK K3440

Square D Qwikline QOE - 6a to 63a Single Pole Type C MCB's rated @ 6kA Used C1U

New listingSQUARE D 63 AMP 12.5kA MCCB SFA1063C

SQUARE D QOE C16A 10kA TRIPLE POLE MCB CIRCUIT BREAKER , SENT FAST

SQUARE D 6 AMP CURVE B 10kA MCB CIRCUIT BREAKER KQ10B106

SQUARE D 20 AMP TYPE 2 M6 MCB CIRCUIT BREAKER QOE

SQUARE D 32 AMP TYPE 3 M9 TRIPLE POLE MCB CIRCUIT BREAKER QOE

Square D MCCB 250 Amp Triple Pole 3 Phase 250A CN Range I-Line CNAE34250

Square D 50 Amp Triple Pole 3 Phase 50A Series 2 i-Line Breaker SFA3050 MCCB

Best selling

Square D Type QOE B6 6 Amp Single Pole MCB Miniature Circuit Breaker QO106EB10

Square D 16 Amp Type B 6ka MCB Circuit Breaker Domae DOM16B6

Square D QOE 20 Amp Type C 20a Triple Pole 3 Phase Breaker QO320EC10 MCB 10000

Square D MCB 45 Amp Single Pole Circuit Breaker B45 Type B 45a Domae DOM45B6

Square D 45 Amp 3 KA MCB Circuit Breaker Qo X QOXD145

Square D CDAE34100 MCCB I-Line Circuit Braker

Square D KQ10B116 16 Amp MCB Type B Single Pole Circuit Breaker B16

Square D KQ10B132 LOADCENTRE MCB 32 Amp Type B Single Pole B32 BRAND

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