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  • Home
  • About Us
  • Catalog
    • Lighting
    • Featured Product
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Product Types

  • Automation
  • On Sale
  • Lighting
  • Clearance

Shop by Type

  • Actuators
  • Air Gap
  • Alarms
  • Anchors
  • Attachment
  • Auxiliary Contact
  • Auxiliary switch block
  • Ballasts
  • Blinking Tower Light Kit
  • Box Covers
  • Cable Ties
  • Cables & Accessories
  • CFL Light
  • Chime Kit
  • Circuit Breakers
  • Clamp
  • Coaxial Connector
  • Coil
  • Communication Interface
  • Conduits & Connectors
  • Conical Drop
  • Connector
  • Contact Block
  • Contactors
  • Contractors
  • Control Relay
  • Cord Cover
  • Cord Grips
  • Crouse-Hinds
  • Digital Measuring Instruments
  • Dimmer
  • DIN Rail Circuit Breakers
  • Disconnect Kits
  • DOWNLIGHT
  • E Stop Control Station
  • E Stop Control Station Kit
  • Electrostrip
  • Emergency Light
  • Emergency Stop
  • Emergency Switch
  • EMT
  • Enclosed Disconnects
  • Enclosure
  • End Cap
  • Energy Meter Multimeters
  • Energy Optimizer
  • Extension Kit
  • Eyeball Camera
  • Fan Control
  • Fan Kit
  • Filter
  • Fitting
  • Florescent Lamp
  • Frame-In-Kit
  • Fuse Holders
  • Fuse Kit
  • Fuse Reducers
  • Fuses
  • Glass Fixture
  • Glass Lighting
  • Halogen Bulb
  • Heat Detector
  • High Bay
  • High Bay LED
  • HMI
  • Junction Box
  • Key Switch
  • Knob Cap Selectors
  • Lamp Holders
  • LED Driver
  • LED Exit Signs
  • LED Fixture
  • LED Floodlight
  • LED Lamps
  • LED Light
  • LED Pot Lights
  • LED Security Light
  • LED Street Lights
  • LED Strip
  • LED Tack
  • LED Under Cabinet
  • LED Wall Pack
  • Lighting
  • Lighting Fixtures
  • Limit Switches
  • Loadcenter
  • Loadcentre
  • Low-Voltage Bracket
  • Lugs & Splices
  • Magnet Coil
  • Main Breaker Kit
  • Manual Motor Starter Kits
  • Manual Starter
  • Marker Dispensers
  • Merretts
  • Mesh Grips
  • Metal Boxes
  • Metal Halide
  • Meter
  • Meter Sockets
  • Metering Pump
  • Micro PLC Starter Kits
  • Modules
  • Molded Case Circuit Breakers
  • Monoblock Potentiometers
  • Motion Light
  • Motor Starter & Control Kits
  • Motors
  • Multi-Pole Connectors
  • On-Q
  • Out Door Plate Cover
  • Painted closing plate
  • Panel Board Kit
  • Panel Thermostat
  • Pilot Lights
  • Pin & Sleeve
  • Pipe Sleeve
  • Plates
  • Plug Fuses
  • Pneumatic Valve
  • Poly Twine
  • Pulse and Steady Tone Monoblock Buzzers
  • Pump Switch
  • Punchdown Module
  • Push Button Kit
  • Push Buttons
  • Raceway
  • Receptacle
  • Recessed Lighting
  • Relay Interfaces
  • Relays
  • Safety Devices
  • Security Light
  • Selector Kits
  • Selector Switch
  • Sensors
  • Single Input Riser
  • Smoke Detector
  • Solar LED
  • Solid Neutral Kit
  • Speaker
  • Speed Control
  • Splitter
  • Staples
  • Steady Light Kits
  • Strobe Light
  • Strut
  • Switches
  • Switching Power Supply
  • Telephone Jacks
  • Terminals
  • Thermostat
  • Timer
  • Timers
  • Tools
  • Track Light
  • Transducers
  • Transformers
  • Transmitters
  • TRIM
  • Trims
  • Trouble Light
  • Vacancy Sensor
  • Valves
  • Vanity Light
  • Vapor Barrier
  • Vapour Proof Fixture
  • Voltage Monitoring Relays
  • Wall Heater
  • Wall Mount
  • Wall Pack
  • Watch
  • Weatherproof Cover
  • Wire Marking & Identification
  • Wired Controller
  • Wiremold
  • Wiring Devices
  • Wiring Duct

Shop by Vendor

  • ABB
  • Air King
  • AKO
  • All-Pro
  • Allen-Bradley
  • Ameta Group
  • Anyray
  • APL
  • Asco
  • AW Lighting
  • Balluff
  • Banvil 2000
  • Beghelli
  • BEL
  • BJTake
  • Bridgeport
  • BRK
  • Broan
  • Bussmann
  • Canarm
  • Centent Lighting
  • Century Wire
  • Cooper
  • CSC LED
  • Cutler-Hammer
  • Daikin
  • Danfoss
  • Dart Controls
  • Distech
  • Distech Controls
  • Drexan
  • E Craftsmen
  • EarthTronics
  • Eaton
  • Edison
  • Edwards
  • Edwards Signaling
  • Eelighting
  • EiKO
  • Electro-Meters
  • Emerson
  • Emko Electronik
  • Erico
  • Excell
  • Exm
  • Extra Value
  • Federal Pioneer
  • Festo
  • Finder
  • Fulham Lighting
  • Functional Devices Inc
  • Galaxy Lighting
  • Gast
  • GE Lighting
  • General Electric
  • Green Bird Electric Solutions Inc.
  • greenbirdes.com
  • Greystone Energy
  • Grove Gear
  • Hafele
  • Halo
  • Honeywell
  • Hubbell
  • Ideal
  • Illuminex
  • ITC Electrical
  • Jenco Canada
  • Johnson Controls
  • Juno Lighting
  • K-Spec
  • Kavr Energy
  • Kidde United
  • KMC Controls
  • Konka
  • Lafert
  • Landis & Staefa
  • Leeson
  • Legrand
  • Leviton
  • Lightolier
  • Liteline
  • Litelite
  • Litetronics
  • Lithonia Lighting
  • Litline
  • Little Fuse
  • Lovato
  • Luminiz
  • Lutron
  • Luxlite
  • Marathon Electric
  • Marcus
  • Marcus Transformers
  • MaxiLite
  • Mean Well
  • Mersen
  • Metalux
  • Mighty Max
  • Motovario
  • MX Motion
  • Nesco
  • NexLEDS
  • Nicor LED
  • Nitra
  • Norgren
  • Northern Stars
  • Omron
  • Ortech
  • Ouellet
  • Panasonic
  • Panduit
  • Parker Eurotherm
  • Peerless
  • Philips
  • Pictoram Emergy Lighting
  • Pizzato
  • Potter Signal
  • Precision
  • Premise LED
  • Pulsafeeder
  • RAB Design
  • RC Lighting
  • Red Lion Controls
  • Renesola
  • Robertson
  • Roma
  • Satco
  • Satco Hygrade
  • Schneider Electric
  • Sentry
  • Sew Euro Drive
  • Shenzhen Better Technology
  • Siemens
  • SJE RHOMBUS
  • SLT Lighting Technology
  • SMC Pneumatics
  • SNC Opto Electric
  • Sosen
  • Spirax Sarco
  • Square D
  • Standard
  • StanPro
  • Star Lites
  • Stelpro
  • Sylvania
  • Symban
  • Techspan
  • Thomas & Betts
  • Triad
  • Turolight
  • Ultrasave
  • Unitorq
  • Veris Industries
  • Visioneering Corp.
  • Vista
  • Votatec
  • Wago
  • Watt Stopper
  • Watts Water Tech
  • XRed Power

Recent Articles

  • SMARTimer Type 84.02
  • SATCO LED A19 SALE

Home › Q21540CTNC
Q21540CTNC

Siemens

Q21540CTNC

$54.00 $65.00
  • Description

Siemens QT breakers provide space savings inside the enclosure by delivering two 1/2" breakers in 1" of space. These breakers also have plug-in connections in Siemens enclosures.

2 Pole 120/240V Triplex

These space saver triplex breakers provide a 2 pole common trip breaker for 120/240V AC circuits and two single poles for 120V AC circuits. Triplex require two panel spaces. HACR rated.

Q21540CTNC

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