SCHNAP Logo

Making Trade Life Easy!
  • Menu
    • Cable
      • Power Cables
        • Building Wire (TPS)
        • Twin & Earth Cable
        • Aerial Bundle Cable
        • XLPE Cable
        • Orange Circular Cable
        • Flexible Cable
        • Flat Cable
        • Fire Rated Cable
      • Specialty Cable
        • Low Voltage / Garden Cable
        • Control & Security Cable
        • SDI Cable
        • Speaker / Figure 8 Cable
      • Data & Comms Cable
        • Cat5e / Cat6 / Cat6A Cable
        • Phone / Voice Cable
        • Coaxial / TV Cable
        • Automation Cable (C-Bus. KNX, Dynalite)
      • Fibre Optic Cable
        • Fiber Cable
        • Cheerline Cable
      • Solar Cable
      • Cable Accessories
        • Aluminium Lugs
        • Copper Lugs
        • Bi-Metal Lugs
        • Circuit Breaker Lugs
        • Bootlace Pins & Terminals
        • Bullet Terminals
        • Forked Terminals
        • Insulated Bell Terminals
        • Insulated Pins
        • Lug Terminals
        • Non Insulated Tabs
        • Piggy Back Terminals
        • Quick Disconnects
        • Stud Rings
        • Terminal Lip Blades
        • C Connectors
        • Crimp Links
        • Waterproof Crimp Links
        • In-Line Splices
        • Cable Joiners
        • View more →
      • Cable Support
        • Cable Tray
        • Cable Ladder
        • Tray & Ladder Accessories
        • Cable Ties, Clips & Straps
        • Catenary Wire & Accessories
        • Gripple
        • Hook & Loop
        • Saddles
        • Purlin Clips
        • Brackets
      • Conduit & Ducts
        • Heavy Duty Conduit
        • Medium Duty Conduit
        • Communications Conduit
        • NBN Conduit
        • Solar Conduit
        • Corrugated Conduit
        • Anaconda Pipe & Adaptors
        • Rubber / Flex Conduit
        • Split Conduit / Loom Tube
        • Conduit Fittings
        • Cable Duct
        • Skirting Duct & Accessories
        • Cable Covers
        • Cable Pulling Accessories
        • Pits, Pillars & Underground Enclosures
    • Circuit Protection
      • Switchboards & Meter Boxes
        • Flush Mounted Switchboards
        • Surface Mounted Switchboards
        • Temporary Switchboards
        • Temporary Switchboard Accessories
        • Distribution Boards
        • Meter Boxes
        • Plastic Enclosures
        • Metal Enclosures
        • Circuit Breaker Enclosures
        • NBN Enclosures
        • IP Rated Enclosures
        • Adaptable Boxes & Accessories
        • Pushbutton Enclosures
        • Junction Boxes
        • Extension Boxes
        • Enclosure Accessories
      • Switch Gear & Protection
        • AC Circuit Breakers
        • DC Circuit Breakers
        • Plug-In Circuit Breakers
        • Moulded Case Circuit Breakers (MCCB)
        • MCCB Accessories
        • Residual Current Devices (RCDs)
        • MCB / RCD / RCBO Combos
        • Surge Protection
        • Arc Fault Detection
        • Main Switches
        • Change Over Switches
        • Isolators
        • Contactors & Equipment
        • Contactor Accessories
        • Relays
        • Overload Relays
        • Relay Bases
        • Thermal Overloads
        • Electronic Overloads
        • Fuses & Fuse Holders
        • View more →
      • Timers
        • Analogue Timers
        • Digital Timers
        • Delay On/Off Timers
        • Multi Function Timers
        • Run On Timers
        • Switch Timers
      • Metering
        • Kilowatt Hour Meters
        • Kilowatt Hour Accessories
        • Run Time Meters
        • Current Transformers & Accessories
      • Switchboard Accessories
        • Busbars
        • Active Neutral Earth Bars & Links
        • Connection Clamps & Hooks
        • Connection Brackets
        • Connection Devices
        • Connection Tools
        • Mains Connection Boxes
        • Property Poles & Accessories
        • Hooks & Bolts
        • Glands
        • Bushes
        • Locknuts
        • Grommets
        • Din Rails
      • Earthing
        • Earthing Stakes
        • Earthing Clips & Clamps
        • Earthing Pits
        • Earthing Tags
        • Equipotential Bonding Solutions
    • Electrical
      • Powerpoints
        • Internal Powerpoints
        • Weatherproof Powerpoints
        • Specialty Outlets
        • USB Chargers
        • Suspension Outlets
      • Switches & Mechs
        • Internal Switches
        • Weatherproof Switches
        • Switch Mechs
        • Dimmers & Fan Controllers
        • Rotary Switches
        • Specialty Switches
      • Plugs, Sockets & Adaptors
        • Male Plug Tops
        • Female Plug Tops
        • Plug Bases
        • Extension Leads
        • Powerboards & Surge Protectors
        • Flex & Plugs
      • Cover Plates & Grid Plates
        • Switch Cover Plates
        • Powerpoint Cover Plates
        • Blank Cover Plates
        • Grid Plates
      • Mounting Accessories
        • Mounting Blocks
        • Wall Boxes
        • Mounting Plates & Accessories
        • Powerpoint Shrouds
        • Switch Shrouds
        • Weatherproof Enclosures
      • MATV & TV
        • TV Digital Antennas
        • TV Splitters & Taps
        • TV Amplifiers & Modulators
        • TV Coaxial Cable
        • TV Connectors & Tools
        • TV Brackets
        • TV Installation Hardware
        • TV Accessories & Mechs
        • HDMI Leads
        • HDMI Mechs
        • HDMI Extenders
      • Sensors, Bells & Chimes
        • Door Bells & Chimes
        • Movement Sensors
      • Lighting Parts
        • Capacitors
        • Ignitors
        • Magnetic Ballasts
      • Appliance Parts
        • Heating Elements
        • Thermostats
        • Float Switches
        • Fluid Level Alarms
        • Ripple Filters
    • Lighting
      • Indoor Lighting
        • Downlights
        • Battens
        • Batten Holders
        • Oysters
        • Panels & Troffers
        • Strip Lighting
        • Track Lighting
        • Cabinet Lighting
        • Heat Light Units
        • Wall Lights (Indoor)
      • Outdoor & Landscape
        • Floodlights
        • Bollard Lights & Accessories
        • Bunker Lights
        • Garden Lights
        • Step Lights
        • Deck Lights
        • Outdoor Wall Lights
        • Spot Lights
        • Street / Area Lights
      • Commercial & Industrial
        • High Bays
        • Shoplighters
      • Lamps & Globes
      • Ceiling Fan Lights & Fittings
      • Lighting Accessories
        • Ceiling Roses
        • General Lighting Accessories
      • Exit & Emergency
        • Exit Lights (LED)
        • Exit Parts & Accessories
        • Emergency Battens (LED & Weatherproof)
        • Emergency Floodlights
        • Emergency Spitfires (Recessed & Surface)
        • Emergency Test Kits & Log Books
        • Emergency Parts & Accessories
    • Heating & Cooling
      • Air Conditioning
        • Wall Split Air Conditioners
        • Ducted Air Conditioners
        • Heat Pumps & Accessories
      • Ceiling Fans
        • Ceiling Sweep Fans
        • Ceiling Fan Remotes
        • Extension Rods
      • Exhaust Fans
        • Internal Exhaust Fans
        • External Exhaust Fans
        • Inline Exhaust Fans
        • MixFlow Exhaust Fans
        • Fan Light Units
        • Heat Fan Light Units
        • Exhaust Fan Kits & Accessories
      • Heaters & Hand Dryers
        • Outdoor Heaters
        • Heat Transfer Units
        • Hand Dryers
      • Pedestal & Wall Fans
        • Pedestal Fans
        • Wall Mounted Fans
      • Louvres & Grilles
      • Ducting
        • Flexible Duct
        • Uninsulated Duct & Fittings
        • Rigid PVC Duct & Fittings
      • HVAC & Ducted Components
        • Pair Coil
        • Colorbond Trunking
        • Drip Trays & Drain Pipe
        • Condensate Pumps
        • Dektites
        • Duct Supporting Straps
        • Mounts & Brackets
        • Quick Connect Fittings
        • AC Cable
        • Tape & Accessories
      • Ducted Fittings
        • Dampers
        • Single & Double BTOs
        • Joiners & Reducers
        • Metal Boots / Boxes
        • Return Air Eggcrate Grilles
        • Return Air Insulated Boxes
        • Supply Air Grilles
        • Supply Air V Box
        • Y Branches
      • Zone & System Controls
        • Zone Controls
        • System Controllers & WiFi Modules
      • HVAC Tools
        • Manifold Gauges
        • Vacuum Pumps & Wireless Gauges
        • Recovery Units
        • Flaring & Expander Tools
        • Tube Cutters & Benders
        • Refrigerant Hoses
        • Leak Detectors
        • Charging Scales
        • Digital Torque Wrenches
        • Deburring Tools
        • Installation Support Tools
        • HVAC Cleaning Accessories
        • HVAC Tool Accessories
    • Data & Communications
      • Cabinets & Network Equipment
        • Data Cabinets
        • Open Frame Wall Mount
        • IP Rated Cabinets
        • Cabinet PDUs
        • Cabinet Accessories
        • Home Wiring Systems
        • Network Switches
        • Modems
        • PoE Injectors
        • SFP Modules
        • Media Converters
        • UPS (Uninterruptible Power)
        • Mobile Signal Boosters & Accessories
      • Copper Cabling Components
        • Patch Panels
        • Patch Leads
        • Cat6 / Cat6A Connectors
        • Jacks, Plugs & Crimps
        • Wallplates & Jack Adaptors
        • Data Enclosures
        • SM Modular Jack Box
        • Data Cable Management
        • Underground Enclosures
        • Data Accessories
      • Fibre Optic
        • Fibre Patch Leads
        • Fibre Pigtails
        • Fibre Through Connectors
        • Splice Enclosures & Trays
        • Fibre Fobots & Kits
        • Fibre Raceway
        • Fibre Cleaners
        • Cleerline Accessories
        • Fibre Accessories
      • Voice & NBN
        • Voice Frames & Backmount Frames
        • Voice Enclosures
        • Voice Connectors & Plugs
        • Voice Outlets
        • Voice Patch Panels
        • Voice Connect / Disconnect
        • Distribution Frames & Covers
        • Line Splitters
        • NBN Enclosures
      • Data & Comms Tools
        • Crimpers & Dies
        • Punch Down Tools
        • Cable Strippers
        • Jack Termination Tools
        • F-Type Crimpers
        • Fibre Tools
        • Cleerline Tools
        • Copper Tools
        • Cable / Network Testers
        • Digital Signal Finders
    • Smart Home & Automation
      • Automation
        • C-Bus Controllers
        • C-Bus Dimmer Controllers
        • C-Bus Keypads
        • C-Bus Mechs
        • C-Bus Sensors
        • C-Bus Output Boards
        • C-Bus Input Boards
        • C-Bus Built Boards
        • C-Bus Network Interface & Bridges
        • C-Bus PC Interface & Dongles
        • C-Bus Power Supply
        • C-Bus Bus Couplers
        • C-Bus Gateways
        • C-Bus Relays
        • C-Bus Wall Box & Plates
        • Clipsal Wiser
      • Smart Switches & Outlets
      • Smart Lighting
        • Smart Lighting Fittings
        • Smart Security Lighting
        • Smart Lighting Accessories
      • WiFi & Wireless
        • Access Points
        • Mesh Systems
        • WiFi Extenders
        • Point to Point Links
        • Cloud Keys
        • WiFi Cameras & Doorbells
      • Security & Surveillance
        • CCTV Cameras
        • NVRs / CCTV Recorders
        • CCTV HDDs
        • CCTV Kits
        • CCTV Solar Kits
        • Wireless CCTV
        • CCTV Accessories
      • Access Control
        • Electric Strikes
        • Exit Buttons
        • Keypad Access & Accessories
      • Intercoms
        • Intercom Kits
        • Intercom Add-Ons & Accessories
      • Alarms & Detection
        • Smoke Alarms
        • Heat Detectors
        • Smoke & Heat Detection Accessories
        • Wireless Modules
        • Break Glass
        • Alarm Accessories
        • Security Cable
        • Security Power Supplies
        • Security Tools
      • Home Entertainment
        • Speakers
        • Speaker Cable
        • Amplifiers
        • Audio Accessories
    • Solar & EV
      • Solar Panels
      • Inverters
        • Solar Inverters
        • Hybrid Inverters
        • Micro Inverters & Accessories
        • Inverter Accessories
        • Inverter Covers
      • Battery Storage
        • Battery Storage Units
        • All-In-One Hybrid & Battery
        • Battery Accessories
      • EV Chargers & Accessories
      • Solar Racking
        • Roof Mount Kits
        • Ground Mounting Systems
        • Individual Components
      • Solar BOS & Accessories
        • MC4 Connectors
        • Pre-Assembled MC4 Leads
        • BOS Kits
        • Solar Cable
        • Solar Conduit
        • Solar Cable Ties
        • Solar Glands
        • Combiner Boxes
        • Solar DC Breakers
        • Solar Isolators
        • Fuses & Disconnectors
        • Solar Breaker Enclosures
        • Edge Protection
        • Solar Dektites
        • Solar Labels
        • Other Solar Accessories
      • Network Protection Boards
      • Off-Grid Systems
      • Portable Power Solutions
      • Solar Tools
    • Industrial
      • Industrial Plugs & Sockets
        • Industrial Plugs
        • Industrial Sockets
        • Industrial Inlet Sockets
        • Industrial Outlets
      • Industrial Switchgear
        • Industrial Mounting Enclosures
        • Industrial Body Only Enclosures
      • Motors & Motor Control
        • Starting Equipment (DOL, Soft Starters)
        • Motor Control Accessories
      • Switching & Control
        • Push Buttons & Selector Switches
        • Emergency Stop Equipment
        • Foot Switches
        • Limit Switches
        • Toggle Switches
        • Sensors
      • Lights, Bells & Beacons
        • Pilot Lights
        • Bells / Sirens / Screamers
        • Strobe Beacons
      • Industrial Accessories
    • Tools
      • Hand Tools
        • Pliers
        • Cutters
        • Strippers
        • Crimpers & Dies
        • Screwdrivers
        • Hammers
        • Knives
        • Saw & Hacksaws
        • Tin Snips
        • Adjustable Wrenches
        • Allen Keys
        • Levels
        • Tape Measures
        • Caulking Guns
        • Rivet Guns
        • Cable Tie Guns
        • Banding Tensioning Tools
      • Power Tool Accessories
        • Drill Bit Sets
        • Drill Bit - Metal & Wood
        • Drill Bit - Masonry
        • Drill Bit - Glass & Tile
        • Drill Bit - Ceramic
        • Drill Bit - Long Series
        • Multi Purpose Drill Bits
        • Hole Saws & Kits
        • Hole Saw Blades & Accessories
        • Spade Bits & Kits
        • Step Drills
        • Auger Bits
        • Driver / Adapter Bits
        • Hexagonal Driver Bits
        • Extension Bars
        • Cut Off Discs
        • Flap Discs
        • Grinding Discs
        • Blades
        • Hacksaw Blades
      • Meters & Testers
        • Multimeters
        • Clamp Meters
        • Insulation Testers
        • RCD Testers
        • Loop Impedance Testers
        • Multifunction Testers
        • Voltage Testers
        • Phase Rotation Testers
        • Pair Testers
        • Appliance Testers
        • Lux Meters
        • Circuit Tracers
        • Butt Phones & Accessories
        • Meter Load Testers
        • Earthing Leads
        • Test Equipment Accessories
      • Heat & Soldering
        • Soldering Irons
        • Corded Heat Guns
        • Gas & Gas Torches
        • Solder
      • Work & Safety Lights
        • Torches & Work Lights
        • Magnets
      • Tool Storage
        • Tool Bags & Carriers
      • Tool Kits
      • Fixings & Hardware
        • Wood Screws
        • Metal Screws
        • Masonry / Brick Screws
        • Bakerlite Screws
        • Assorted Screw Packs
        • Nuts and Bolts
        • Nylon Nuts & Bolts
        • Washers
        • Rivets
        • Toggles
        • Wall Fixings
        • Wall Mates / Plaster Mates
        • Drop In Anchors
        • Dyna Bolts / Sleeve Anchors
        • Eye Bolts
        • Nylon Nail In Anchors
        • Screw Bolts
        • Wall Plugs
        • Chain
        • D Shackles
      • Consumables
        • Electrical Insulation Tape
        • Self Amalgamating Tape
        • Construction Tape
        • Double Sided Tape
        • Duct Tape
        • Warning Tape
        • Adhesives & Glue
        • Silicone & Foam
        • Paint & Zinc Spray
        • Corrosion Inhibitors
        • Fire Seal
        • Pens, Pencils & Markers
        • Crayons
        • Compliance Certificates
        • Appliance Test Log Books
        • Emergency Testing Log Books
        • Batteries
        • Vacuum Accessories
    • Safety & PPE
      • Head Protection
        • Hard Hats
        • Branded Hard Hats
        • Hard Hat Accessories
        • Visors & Visor Holders
      • Eye & Face Protection
        • Safety Glasses & Goggles
        • Faceshields & Welding Visors
        • Visor Replacements & Accessories
        • Cleaning Accessories
      • Hearing Protection
        • Earmuffs
        • Earplugs
        • Earmuffs Hygiene Kits
      • Hand Protection
        • Gloves
        • Glove Clips
      • Respiratory Protection
        • Disposable Respirators
        • Respiratory Masks
        • Air Purifying Respirator Filters
        • SCBA Self Contained Breathing Apparatus
        • Complete SCBA Kits
        • SCBA Facemasks
        • Cylinders & Valves
        • Emergency Escape Apparatus
        • PASS Personal Alert Safety Systems
        • Respiratory Accessories
      • Fall Protection
        • Body Harnesses
        • Self Retracting Lanyards
        • Shock Absorbing Lanyards
        • Pole Straps
        • Anchorages
        • Hooks & Karabiners
        • Confined Space Entry Kits
        • Fall Protection Kits
        • Miners Belts and Harnesses
        • Fall Protection Accessories
      • Footwear & Clothing
        • Footwear
        • Footwear Accessories
        • Safety Vests
        • Tradezone Merchandise
      • Fire Protection
        • Fire Extinguishers
        • Fire Blankets & Pillows
      • First Aid
      • Gas Detection
        • Gas Detectors
        • Gas Detection Kits
        • Automated Calibration Stations
        • Calibration Gas Cylinders
        • Calibration Accessories
        • Sample & Pump Probes
        • Gas Detectors Accessories
      • Site Safety
        • Bollards
        • Barrier Mesh
        • Star Pickets & Accessories
        • Asbestos Bags
        • Lockouts
        • Voltage Safety Equipment
        • Test Tags
        • Warning Tags
        • Safety Tools
      • Training
    • Brands
    • Blog
  • TRADE SUPPORT
    ACCESS TRADE PRICING
Trade Discount 20%

MCCB 140G G FRAME 50kA 4P 20A Fixed Thermal Magnetic High Breaking Capacity Reliable Circuit Protection by Allen-Bradley

BRAND: Allen-Bradley
SKU: 140GG3C4C20
$344.50 List price: $429.30
+ −
30 Days Return Electricians Unlock Trade Access
MCCB 140G G FRAME 50kA 4P 20A Fixed Thermal Magnetic Circuit Breaker is designed for reliable circuit protection in industrial and commercial applications. With a high breaking capacity of 50kA and a rated current of 20A, it ensures comprehensive circuit interruption. Ideal for electrical panels and motor control centers, this breaker supports energy efficiency and safety in your electrical systems.

Alternatively Known As: Molded Case Circuit Breaker, MCCB 140G, Thermal Magnetic Circuit Breaker, 4 Pole MCCB

Technical Specifications
  • Poles: 4P
  • Rated Current: 20A
  • Breaking Capacity: 50kA
  • Trip Unit: Fixed Thermal Magnetic
  • Frame Size: G
  • Type: MCCB 140G
  • Dimensions (H x L x W): 150mm x 80mm x 100mm
  • Weight: 2.5 kg
Key Features
  • Fixed thermal magnetic trip unit for reliable circuit protection
  • Four-pole design for comprehensive circuit interruption
  • High breaking capacity of 50kA for enhanced safety
  • Rated current of 20A suitable for moderate load applications
Professional Installation Requirements
  • Installation must be performed by a licensed electrician to ensure compliance with electrical safety standards and proper operation.
Applications
  • Industrial electrical panels
  • Commercial power distribution
  • Motor control centers
  • Protection of electrical circuits in manufacturing plants
Standards & Compliance
  • Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Helps prevent electrical fires and equipment damage, reducing waste and environmental hazards
  • Supports energy efficiency by protecting circuits and minimizing downtime
Warranty Information

1 year warranty covering manufacturing defects and performance issues.

Available Now

The Allen-Bradley MCCB 140G G FRAME 50kA 4P 20A Fixed Thermal Magnetic Circuit Breaker is available for immediate purchase, ideal for industrial and commercial electrical protection applications.

Related Products