Shop Now

• Acoustic and visual warning devices
  • Bells
  • Buzzers
    • Flush mount
    • Panel mount
    • Surface mount
  • Sirens
    • Panel mount
    • Surface moun
    • Surface mount
  • Strobe lights
  • Surface mount indicator lights
  • Tower lights
    • Direct mounted
    • LED Flashing modules
    • Pole mounted
    • Tower light Accessories
  • Warning lights
    • Base mounted
    • Wall mounted
  • Warning lights with sounders
• Cable accessories
  • Blanking plug
  • Boot lace pins
    • Packets
    • Reels
  • Cable glands
    • ABS
    • Metal
    • Nylon
  • Cable tie bases
  • Cable ties
    • Nylon
    • Stainless steel
  • Copper crimp links
  • Copper lugs
    • Long palm lugs
    • Narrow palm lugs
    • Standard straight and flared
  • Crimpers and cable cutter tools
    • Crimper for insulated terminals
    • Crimpers for boot lace pins
    • Crimpers for copper lugs
    • Din rail cutter
    • Ratchet cable cutters
  • Heatshrink
  • Loom tube
  • Memocab wire numbers
    • Wire number holders
    • Wire numbers
  • Nylon snap bushings
  • Pre insulated terminals
    • Fully insulated quick connect terminals female
    • Pre insulated butt splice terminals
    • Pre insulated quick connect terminals female
    • Pre insulated quick connect terminals male
    • Pre insulated wire pin terminals
    • Ring Terrminals
    • Spade terminals
  • Screwed bushes
  • Spiral binding
• Clearance
• Control circuit switching
  • 22mm Control circuit device enclosures and labels
    • BOXCO range
    • Comepi range
      • Pushbutton enclosure
    • Pushbutton enclosure label
    • RMQ Titan range
      • Pushbutton enclosure
      • Pushbutton flush mount plates
    • Tend range
      • Pushbutton enclosure
  • Acoustic indicator
  • Air switches
  • Cam switches
    • Eaton range
    • Kraus & Naimer range
  • Compact limit switches
  • Compact micro switches
  • Emergency stop switches
    • Comepi ECX & SA range
    • RMQ Titan range
    • Tend range
  • Float switches
  • Foot switches
  • Hoist switches
  • Joysticks
    • Comepi ECX range
    • Tend range
  • Lamp test diode block
  • Limit switches
  • Lockable panel mounted Isolators
    • Eaton
    • Kraus & Naimer
  • Micro switches
  • Pantry door switch
  • Pilot lights
    • Comepi ECX range
    • Eureka PL16 range
    • Eureka PL22 range
    • RMQ Titan range
      • Extended conical type
      • Flush type
      • LED element block
      • Pilot lights lense
      • Test function block
    • Tend range
  • Pilot lights complete with Buzzers
  • Potentiometer
  • Pushbuttons
    • Comepi ECX range
      • Accessories
      • Contact block
      • Enclosed pushbuttons
      • flush spring return
      • Illuminated spring return
    • RMQ Titan range
      • Accessories
      • Contact block
      • Dual type stop / start
      • Enclosed pushbuttons
      • extended spring return
      • flush spring return
      • Illuminated flush latching
      • Illuminated spring return
      • Illuminated spring return extended type
      • Labels and lenses
      • Mushroom head
      • stay put
    • Tend range
      • Accessories
      • Contact block
      • Dual type stop / start
      • Enclosed pushbuttons
      • extended latching
      • extended spring return
      • flush latching
      • flush non latching
      • flush spring return
      • Illuminated mushroom head
      • illuminated spring return
      • Illuminated spring return extended type
      • labels and lenses
      • mushroom head
  • Safety gate hinges
  • Safety limit switches
  • Selector switches
    • Comepi ECX range
      • 2 position
      • 3 position
      • key switches
    • RMQ Titan range
      • 2 position
      • 3 position
      • Key switches
    • Tend range
      • 2 position
      • 3 position
      • key switches
  • Swing gate and roller door controllers
    • Antennas
    • Gate opening accessories
    • Roller Door Controllers
    • Swing gate opening systems
  • Temperature controllers
    • Panel mount temperature controller
    • Sensors
    • Thermocouples
    • Thermostats
  • Transmitter and receiver FOB'S
  • Transmitters and receivers hand held
  • Unswitched socket outlet
• Enclosure accessories
  • Busbar insulators
  • Cable marking products
    • Equipment marking
    • Plant marking
    • Printers
    • Terminal marking
    • Therrmofox wire markers
  • Covered Meter Links
    • Active links
    • Clear links
    • Neutral links
  • Cubicle lights
  • Din rail
  • Earth & Neutral bars
    • 165A
    • 250A & 400A
  • Fans
    • Complete fan kits with fan and vent kits
    • Fan only
    • Fan vent kits only
    • Fans wire guard
  • Heaters
  • Link bars
    • 140A
    • 90A
  • PVC tape
  • RCD Adaptors
  • Self adhesive tape
  • Slotted duct
    • Slotted duct lid only
    • Small finger grey
    • Standard finger grey
  • Switchboard hardware
  • Terminal block cassette type
  • Terminal block Porcelain type
  • Terminal din mounted label
    • Terminal din mounted lab
      • Phoenix contact UT, ST & PT terminal range
  • Terminal strips
  • Terminals Bi-metal
  • Terminals din mounted
    • Marker strips for Phoenix UT, ST & PT terminals
    • Phoenix contact UT, ST & PT terminal range
    • Terminal bridging bars
      • Eureka ATB range
      • Phoenix contact UT, ST & PT terminal range
      • Tend TBU range
    • Terminal din mounted Earth
      • Eureka ATB range
      • Phoenix Contact PT range
      • Phoenix Contact ST range
      • Phoenix Contact UT range
      • Tend TBU range
    • Terminal din mounted label
      • Eureka ATB range
      • Phoenix contact UT, ST & PT terminal range
      • Tend TBU range
    • Terminal din partition plate
      • Phoenix Contact PT range
      • Phoenix Contact ST range
      • Phoenix Contact UT range
      • Tend TBU range
    • Terminal end clamp
      • Eureka ATB range
      • Phoenix Contact UT range
      • Tend TBU range
    • Terminal end plate
      • Eureka ATB range
      • Phoenix Contact ST range
      • Phoenix Contact UT range
      • Tend TBU range
    • Terminal fused
      • Phoenix Contact PT range
      • Phoenix Contact ST range
      • Phoenix Contact UT range
      • Tend TBU range
    • Terminals feed through
      • Eureka ATB range
      • Phoenix Contact PT range
      • Phoenix Contact ST range
      • Phoenix Contact UT range
      • Tend TBU range
  • Thermostats
• Enclosures
  • ABS & Polycarbonate BOXCO enclosures accessories
    • Accessories to suit BOXCO enclosures
    • Internal door kits for AGP / ATP BOXCO enclosures
    • Mounting plates for BOXCO enclosure
      • ABS
      • Steel
  • ABS Enclosures
    • Grey body & Clear hinged lid BOXCO
    • Grey body & Clear screwed lid BOXCO
    • Grey body & Grey hinged lid BOXCO
    • Grey body & Grey screwed lid BOXCO
    • Terminal boxes with terminals
    • with cut outs to suit temperature controllers
  • Aluminium
    • Die cast Aluminium junction boxes
      • BOXCO
      • GEWISS
      • Mounting plate to suit BOXCO Die Cast Aluminium
    • Terminal box
  • Mild and Stainless steel wall mounted encl access
    • Inner door kit suits CVS wall mounted enclosure
    • Internal modular chassis suits CVS wall mount encl
    • Key locks
  • Mild steel Bayable enclosures
    • Grey RAL 7035
    • Inner door kit suits CVS Bayable enclosure
    • Mild steel Bayable enclosures accessories
  • Mild steel free standing
    • Grey RAL 7035
    • Inner door kit suits CVS free standing enclosure
    • Orange X15
  • Mild steel Terminal boxes
  • Mild steel wall mounted enclosures
    • Grey RAL 7035
    • Orange X15
    • Rain hood suits CVS wall mounted enclosure
  • Polycarbonate
    • Grey body & Clear hinged lid BOXCO
    • Grey body & Clear screwed lid BOXCO
    • Grey body & Grey hinged lid BOXCO
    • Grey body & Grey screwed lid BOXCO
  • Polyester
    • Grey hinged lid & internal door BOXCO
    • Wall mounted with hinged door
  • PVC
    • Grey body & Clear screwed lid Gewiss
    • Grey body & Grey screwed lid Gewiss
    • PVC enclosures accessories
  • Stainless steel wall mounted Enclosures
    • 304 Stainless steel
    • 316 Stainless steel
• Flexible conduit & fittings
  • Accessories
    • Convertors
    • Couplers
    • Earth tag washers
    • Fixing clamps
    • Fixing Clips with PVC liner
    • Locknuts
    • Mounting saddles Nylon
    • Mounting saddles Zinc
    • Reducers
    • Sealing washers
    • Shake proof washers
  • Conduits
    • Corrugated PVC
    • FPAS Corrugated nylon
    • FSB Galvanised steel braided
    • FSU Galvanised steel PVC coated
    • FU Galvanised steel ZINC
    • LPC Smooth spiral reinforced PVC
    • LTP Galvanised steel Polyurethane liquid tight
    • LTP Galvanised steel PVC liquid tight
    • SSU Stainless steel 316
  • Fittings
    • Corrugated PVC fittings
    • FLK fast fit Corrugated nylon fittings
    • FPA and FPAX Corrugated nylon fittings
    • FPA Corrugated nylon fittings
    • FSB Galvanised steel braided fittings
    • FSU Galvanised steel PVC coated fittings
    • FU Galvanised steel ZINC fittings
    • LPC Smooth spiral reinforced PVC fittings
    • LTP EXD flameproof glands
    • LTP EXE flameproof glands
    • LTP Galvanised steel PVC liquid tight fittings
    • LTPB EXD flameproof glands
    • SSU Stainless steel 316 fittings
• Industrial switches and plugs
  • GEN3 industrial range
    • Appliance inlets
    • Extension sockets
    • Mounting enclosures bases only & Covers
    • Plugs
      • Angled plugs
      • Straight plugs
    • Surface sockets & switches
      • Surface sockets
      • Switches
    • Switched socket outlets
  • IEC 309 range
    • Appliance inlets
      • Appliance inlets
      • Watertight caps for Appliance inlets
    • Plugs
      • 90 degree plugs
      • Straight plugs
    • Reefer plugs and outlets
    • Socket outlets
      • 90 degree surface socket outlets
      • Extension socket outlets
      • Panel mount socket outlets
      • Surface socket outlets
    • Switched socket outlets
  • IP68 Cable connectors, plugs & sockets
    • Inline connectors
    • Inline distributor
    • Inline female socket
    • Inline male plug
    • Panel mount female socket
    • Panel mount male plug
    • Tee connector
    • Tee plug complete unit
  • Marechal Decontactors and accessories
    • Handles
    • Sleeves
    • Socket Inlets male
    • Socket outlets female
    • Wall boxes
  • Multi pole connectors
    • Coding pins
    • Complete units with socket and housing
    • Housings and accessories
    • Socket inserts
• Metering products
  • 22mm metered indicator lights
    • Ammeter
    • Ammeter - Voltmeter
    • Frequency meter
    • Voltmeter
  • Ammeters
    • Ammeter scales to suit 72 x 72mm meters
    • Ammeter scales to suit 96 x 96mm meters
    • Ammeters 48 x 48mm
    • Ammeters 72 x 72mm
    • Ammeters 96 x 96mm
  • Current transformers
    • Compact 3 in 1 with 250mA secondary
    • Compact solid core
    • Din clip to suit RCT1 - RCT4 & CRCT
    • Rogowski type with 2M cable
    • Solid core
      • Class 0.5
      • Class 1
    • Solid core 3 in 1
    • Split core
      • Class 0.5
      • Class 1
  • Kilowatt hour meters
  • Multi function power meters
  • Portable power analyser meters
  • Voltmeters
• Motor control products
  • Contactors
    • Eaton X-Start range Contactor Accessories
      • Auxiliary contacts suits mini frame contactors
      • Auxiliary contacts suits standard frame Contactors
      • Contactor reversing wiring kit for mini frame
      • Contactor reversing wiring kit for standard frame
      • Contactor star delta wiring kit for standard frame
      • Mechanical interlock for mini frame
      • Mechanical interlock for standard frame
    • Eaton X-Start range Contactors
      • Mini frame
      • Standard frame
    • Eureka range Contactors
    • LS Electric Metasol range Contactors
      • mini frame
      • Standard frame
    • LS Electric Metasol range Contactors Accessories
      • Auxiliary contact suits mini frame contactors
      • Auxiliary contact suits standard frame Contactors
      • Contactor wiring kit for standard frame
      • Mechanical interlock for mini frame
      • Mechanical interlock for standard frame
      • Terminal covers
  • Counters & hour run meters
    • Counters
    • Hour run meter
  • Current sensing relays
  • DOL starters
    • Eaton range DOL Starters
    • Tend range DOL Starters
  • Earth leakage relays & toroids
    • Earth leakage Relays DIN mount
    • Earth leakage toroids
  • Liquid level controller
  • Motor protective circuit breakers
    • Eaton range
      • Lockable rotary handle
      • PKZM0 range with rotary handle
      • PKZM0/01 Commoning bars
      • PKZM0/01 Enclosure with membrane
      • PKZM0/01 wiring kit kits
      • PKZM0/01/4 range electrical accessories
      • PKZM01 range with button operation
      • PKZM4 range with rotary handle
    • LS Electric range
      • MMS range connection kit
      • MMS range electrical accessories
      • MMS range with rotary handles
      • MMS range with toggle handles
  • Overloads
    • Eaton X-Start range
      • Stand alone overload base
      • Suits mini frame contactors
      • Suits standard frame contactors
    • LS Electic Metasol range
      • Electronic type suits standard frame contactors
      • Stand alone overload base
      • Suits mini frame contactors
      • Suits standard frame contactors
  • Photo electric beams
  • Relays Eaton
    • Block relays
    • Phase fail relays
    • Thermistor overload relays
  • Relays Eureka
    • Heavy duty relays
    • Isolation relays
    • Phase fail relays
    • Round pin relays
      • TMK2 Round 8 pin relays with test button
      • TMK3 Round 11 pin relays with test button
    • Solid state relays
    • Square pin relays
      • TLY2 Square 8 pin relay bases
      • TLY2 Square 8 pin relays with test button
      • TMY4 Square 14 pin relay bases
      • TMY4 Square 14 pin relays with test button
    • Voltage monitoring relays
  • Relays Omron
    • Round pin relays
      • MKS Omron 2 pole Round pin relay bases
      • MKS Omron 2 pole Round pin relays with test button
      • MKS Omron 3 pole Round pin relay bases
      • MKS Omron 3 pole Round pin relays with test button
    • Slimline relays
      • Omron 1 pole Slimline relay base
      • Omron 1 pole Slimline relays with test button
      • Omron 2 pole Slimline relay base
      • Omron 2 pole Slimline relays with test button
    • Square pin relays
      • LY2 Omron 8 Square pin relay bases
      • LY2 Omron 8 Square pin relays without test button
      • LY4 Omron 14 Square pin relay bases
      • LY4 Omron 14 Square pin relays without test button
      • MY2 Omron 8 Square pin relay bases
      • MY2 Omron 8 Square pins relays with test button
      • MY4 Omron 14 Square pin relay bases
      • MY4 Omron 14 Square pin relays with test button
    • Ultra slim relays
      • Omron 1 pole Ultra slim relays with test button
      • Omron Bridging bar for ultra slim relays
  • Relays Phoenix
    • Phase fail relay
    • Phoenix Plug in bridge suit RIF1 to RIF4 relays
    • Phoenix Ultra slim 1 pole PLC relays with base
    • Phoenix Ultra slim 2 pole PLC relays with base
    • Phoenix Ultra slim PLC relays bridging bars
    • RIF-1 1 pole Phoenix Slimline relays with base
    • RIF-1 2 pole Phoenix Slimline Base only
    • RIF-1 2 pole Phoenix Slimline relays with base
    • RIF-2 2 pole Phoenix Square pin relays with base
    • RIF-2 4 pole Phoenix Square pin relays with base
    • RIF-3 3 pole Phoenix Round pin relays with base
    • RIF-4 2 pole Phoenix Square pin relays with base
    • RIF-4 3 pole Phoenix Square pin relays with base
    • RIF-O Phoenix Ultra slim relays with base
  • Secondary switching controllers
  • Signal Transducer
  • Star Delta starters
    • Closed type
    • Open type
  • Time clocks
    • Din mount Analogue time clocks
    • Din mount digital time clocks
  • Timing relays
    • Din mounted timing relays
    • Plug in multi range timing relays
    • Solid state timing relays
• Power distribution products
  • Air Circuit breakers
  • Din mount enclosures
    • IP40
    • IP42
    • IP56
    • IP65
  • Distribution boards
    • IP40
    • IP42
      • 250A
      • 400A
    • IP56
      • 250A
      • 400A
  • Electrical installation accessories
  • Eureka enclosure system
    • Accessory modules AB enclosures
      • IP42
      • IP56
    • Accessory modules AB enclosures 300mm deep
    • Brackets, shrouds, accessories and connection tags
    • Cable termination enclosures
    • Cable zones
    • Depth extension kits
    • Enclosure segregation components
    • Escutcheons
      • Escutcheon white blank
      • Escutcheon white din type
      • Escutcheon white MCCB m/sw with vertical MCB slots
      • Escutcheon white with vertical MCB slots vertical
    • Flush mounting kits
    • Gear pans
    • Gland plates and ventillation louvres
    • Incoming cable enclosure
    • Metering components
    • Mounting rails
    • Plinths
    • Rain hoods
  • Load centres
    • Load centre IP42
      • flush mount white door metal base
      • Load centre Padlocking kit
      • Surface mount transparent door
      • Surface mount white door
    • Load centre IP55
    • Load centre IP65
    • Load centre mild steel IP40
    • Transparent door mounting kit
  • MCB enclosures
  • Miniature circuit breakers
    • Eaton range
      • 10kA
      • 25kA
      • 6kA
      • Accessories
      • Commoning bars
    • Eureka range
      • 10kA
      • 6kA
      • Accessories
    • LS range
      • 10kA
  • Miniature circuit breakers chassis
    • Isolation type suits Eureka MCB / RCBO
      • Isolation type Bottom feed
      • Isolation type dual feed
      • Isolation type top feed
    • Suits Eaton MCB / RCBO
      • 250A
      • 400A
    • Suits Eureka and LS MCB / RCBO
      • 250A
      • 400A
  • Moulded case circuit breaker chassis
    • Eureka double sided suits Susol MCCB
      • 800A
    • Eureka single sided suits Susol MCCB
      • 800A
  • Moulded case circuit breakers
    • Eaton NZM range
      • 125-250A 25kA 3 pole Thermal Magnetic MCCB
      • 220-630A 50kA 3 pole Thermal Magnetic MCCB
      • 40-160A 25kA 3 pole Thermal Magnetic MCCB
      • 630-1600A 50kA 3 pole Thermal Magnetic MCCB
      • 90-220A 50kA 3 pole Thermal Magnetic MCCB
      • Rotary Handles and accessories
    • LS Electric SUSOL range
      • 100-800A 3&4 pole Non Auto
      • 16-160A 50kA 1 pole Thermal Magnetic MCCB
      • 32-250A 50kA 3&4 pole Electronic
      • 32-250A 50kA 3&4 pole Thermal Magnetic MCCB
      • 32-250A 65kA 3&4 pole Electronic
      • 32-250A 65kA 3&4 pole Thermal Magnetic MCCB
      • 32-250A 85kA 3&4 pole Electronic
      • 32-250A 85kA 3&4 pole Thermal Magnetic MCCB
      • 400-630A 65kA 3&4 pole Electronic
      • 400-630A 85kA 3&4 pole Electronic
      • 800-1600A 50kA 3&4 pole Electronic
      • 800-1600A 70kA 3&4 pole Electronic
      • 800A 65kA 3&4 pole Electronic
      • 800A 85kA 3&4 pole Electronic
      • Barriers and connection kits for TS1600
      • Electrical accessories
      • Locking devices
      • Mechanical interlocks
      • Motor operators
      • RCD add on units
      • Rear connection studs
      • Rotary Handles and accessories
      • Terminal covers
      • Terminal spreaders
  • Residual current circuit breakers
    • Eaton range
      • 6kA 2pole
  • Residual current circuit breakers RCBO
    • Eaton range
      • 10kA 1 pole
      • 6kA 1 pole
    • Eureka range
      • 10kA 1 pole
      • 10kA 3 pole
      • 6kA 1 pole
  • Residual current devices RCD
    • Eureka range
      • 2 pole
      • 4 pole
  • Surge arrestor
  • Switch disconnectors
    • Eaton range
    • Eureka range
  • Temporary supply switchboard
• Power switching products
  • Changeover switches
    • Changeover switches Automatic type open
    • Changeover switches Automatic MCB type open
    • Changeover switches Automatic MCCB type open
      • Up to 1200A 3 & 4 pole
      • Up to 800A 3 pole
    • Changeover switches Automatic type open
    • Changeover switches din rail mounted
    • Changeover switches manual type enclosed
    • Changeover switches manual type open
  • Emergency lighting test kit
  • Fuses and fuse holders
    • 3AG glass fuses and fuse holder
    • BS HRC fuses to 800A
    • Fuse switch disconnector DIN mount to 32A
      • TFBR DIN Fuse bases
      • TFBR DIN Fuses
    • Fuse switch disconnectors and NHG fuses
      • Fuse switch disconnectors up to 400A
      • NHG type to suit NHR17 fuse switch disconnectors
      • NHG type to suit NHR17 fuse switch disconnectors
    • M205 glass fuses to 20A
    • NHG type to suit NHR17 fuse switch disconnectors
    • NS Fuse bases and fuses
      • NS Fuse link holder
      • NS HRC fuses
    • Service fuses
  • GPO's
    • GPO,s din mount
    • GPO,s weatherproof
  • Isolators
    • Din rail mounted
      • Eaton
      • Eureka
      • TEND
    • Enclosed
      • Eureka
      • TEND
    • Panel mounted
  • Load break switches
    • Load break switches 25-125A Din mount ENSTO
      • Load break switch accessories
      • Load break switches with lockable handle
      • Load break switches without handle
    • Load break switches 25-3150A C+S
      • Load break switch accessories
      • Load break switches c/w external handle and shaft
  • Reversing switches
  • Toggle switches
• Transformers and power supplies
  • Power supplies
    • DRC range Meanwell
    • EDR range Meanwell
    • Essential range Phoenix Contact
    • HDR range Meanwell
    • LRS Range Meanwell
    • MDR range Meanwell
    • NDR range Meanwell
    • Quint range Phoenix Contact
    • RSP range Meanwell
    • SDR range Meanwell
    • TDR range Meanwell
    • Trio range Phoenix Contact
    • UNO range Phoenix Contact
    • WDR range Meanwell
  • Transformers
    • Compact transformers
    • Multi Tapped voltages
    • Special voltages
    • Standard voltages
• VSD's and soft starters
  • Soft starters
    • Eaton DS7 range
    • Eaton S811+ range
  • Variable speed drives
    • Delta C-2000 range
    • Delta VFD-E range
    • Eaton DC1 range
    • Eaton DE1 range
    • Eaton DG1 range
    • Eaton DH1 range

Chassis EUREKA MCB 12P x 18+27mm 250A Flat type