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SQUARE-D QO340 PlugOn Breaker 40A 208/240VAC 3-Pole

SQUARE-D QO340 PlugOn Breaker 40A 208/240VAC 3-Pole

    Schneider Electric (Square-D) SKU#: QO340
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      SQUARE-D QO340 PlugOn Breaker 40A 208/240VAC 3-Pole 

      Miniature circuit-breaker

      SQUARE-D QO340 PlugOn Breaker Characteristics:
      • Line Rated Current: 40 A
      • Certifications: CSA / UL listed
      • System Voltage: 120 V AC / 120/240 V AC / 240 V AC / 48 V AC
      • Mounting Type: Plug-in
      • Number of Poles: 3P
      • Circuit Breaker Type: Standard
      • Ratings: HACR rated
      • Electrical Connection: Box lugs• Interrupt Rating: 5 kA at: 48 V DC / 10 kA at: 120/240 V AC 50/60 Hz / 10 kA at: 240 V AC 50/60 Hz / 10 kA at: 120 V AC 50/60 Hz
      • Number of Panel Spaces: 3
      • Wire Size: AWG 8...AWG 2 (copper or aluminium)


      Why Need Plug-On Breaker?
      QO (plug-on) and QOB (bolt-on) one-, two- and three-pole thermal-magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. Plug-on QO circuit breakers are for use in QO load centers, NQ and NQOD panelboards, OEM mounting bases, and Speed-D® switchboard distribution panels. Bolt-on QOB circuit breakers are for use in NQO and NQOD panelboards.

      QO and QOB circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quickbreak action and positive handle indication. The tripping mechanisms in two-and three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to open simultaneously. Each pole has an individual thermal-magnetic trip element calibrated for 40°C ambient temperature.

      QO and QOB circuit breakers have Visi-Trip® trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. When the circuit breaker has tripped, the handle assumes a center position and the red Visi-Trip indicator appears in a window in the circuit breaker case. The Visi-Trip indicator is only visible when the circuit breaker has tripped. Trip indication immediately distinguishes the circuit from any other circuit which is merely in the on or off position. The circuit breaker can be reset by pushing the handle to OFF and then to ON.

      Product Specifications

      • Characteristics
      • ManufacturerSchneider Electric (Square-D)
      • ModelQO340
      • Other Vendor Codes
      • Rated Power Output [W]
      • Length [mm (in)]79 mm (3.12 in)
      • Width [mm (in)]57.15 mm (2.25 in)
      • Depth [mm (in)]74 mm (2.91 in)
      • Weight [kg (lb)](0.83 lb)
      • Warranty [Years]
      • Surge/Lightning Protection
      • Maximum Volts [Vdc]
      • Discharge Current [kA]
      • Nominal DC Voltage Range [Vdc]
      • Nominal AC Voltage [Vac]
      • Modules
      • PTC Power Rating [W]
      • Tier Level
      • Lower Output Tolerance [-%]
      • Upper Output Tolerance [%]
      • Only suitable for transformer invertersNo
      • Compatible with IronRidge CAMO No
      • Pmax - Maximum Power (STC) [W]
      • Voc - Open Circuit Voltage (STC) [V]
      • Isc - Short Circuit Current (STC) [A]
      • Vmpp-Voltage at Maximum Power (STC) [V]
      • Impp-Current at Maximum Power (STC) [A]
      • Cell Efficiency (STC) [%]
      • Module Efficiency (STC) [%]
      • Pmax - Maximum Power (NOCT) [W]
      • Voc - Open Circuit Voltage (NOCT) [V]
      • Isc - Short Circuit Current (NOCT) [A]
      • Impp-Current at Maximum Power (NOCT) [A]
      • Vmpp-Voltage at Maximum Power (NOCT) [V]
      • Cell Efficiency (NOCT) [%]
      • Module Efficiency (NOCT) [%]
      • Nominal Operating Cell Temperature NOCT
      • Maximum System Voltage [V]
      • Series Fuse Rating [A]
      • Maximum Reverse Current [A]
      • Cell Technology
      • Solar Cell's Country of Origin
      • Solar Cell Size
      • Number of Cells (Pieces)
      • Number of Bypass Diodes
      • Frame Color
      • Back Cover
      • Frame Size [mm]
      • Module Length [in]
      • Module Width [in]
      • Junction Box
      • Output Cables
      • Connector
      • Hail Safety Impact Velocity [mm at m/s]
      • Fire Safety Classification (IEC 61730)
      • Static Load Wind / Snow [Pa]
      • Normal Operating Cell Temperature (NOCT)
      • Temperature Coefficients of P [%/°C]
      • Temperature Coefficients of V (Uoc)
      • Temperature Coefficients of I (Isc)
      • Storage Temperature [°C]
      • Packaging Configuration
      • Loading Capacity (40 ft. Container)
      • 80% Power Output Warranty Period
      • 90% Power Output Warranty Period
      • Workmanship Warranty Period
      • CSI Listed
      • Inverters
      • Inverter Type
      • Maximum/Peak Efficiency [%]
      • CEC weighted efficiency [%]
      • Transformer / Transformerless
      • DC Power Rating [W]
      • Nom. DC Voltage [V]
      • Max. Input Power [W]
      • Max. Input Voltage [V]
      • Max. Input Current [A]
      • MPP voltage range [V]
      • Min. DC voltage / start voltage [V]
      • Feed-in From [W]
      • Number of DC String Inputs (Inlets)
      • Number of MPP Trackers
      • Max. Input Power per MPPT [W]
      • Max. Input Voltage per MPPT [V]
      • Max. Input Current per MPPT [A]
      • Voltage Lower Limit for MPP Range [V]
      • Voltage Upper Limit for MPP Range [V]
      • DC Disconnection Type
      • Reverse-Polarity ProtectionNo
      • Ground-Fault Isolation Detection
      • AC Power Rating [W]
      • Nominal AC Power [W]
      • Max. AC Power [W]
      • AC voltage range [V]
      • AC grid frequency [Hz]
      • Max. output current [A]
      • Nominal AC Voltage [V]
      • Maximum AC Voltage Range [V]
      • Nominal AC Frequency [Hz], range [Hz-Hz]
      • Max. AC Line Current [A]
      • AC Connection Type
      • AC Current Distortion [THD%]
      • AC DisconnectNo
      • AC Input Wire Gauge Range [AWG]
      • Max Microinverters Units per xA string
      • Sleep (Night) Consumption [W]
      • Standby Consumption [W]
      • CSI-Approved Built-in MeterNo
      • NEMA Enclosure Rating
      • Cooling Method
      • Ambient Temperature Range [°C(°F)]
      • Operating Humidity [%]
      • Operating Altitude [ft/m]
      • Display
      • Communication
      • Basic Warranty [Years]
      • Warranty Extension Options [Years]
      • Safety and EMC Standard
      • Grid Standard
      • Compliances
      • AC grid range [Hz]
      • Max. recommended PV power (@ module STC)
      • Fuses and Holders
      • Amps [A]
      • Data Logers
      • Bluetooth (BT)No
      • WiFi (wireless LAN)No
      • Powermanagement (PM+)No
      • Powermanagement (PM+) / GPRSNo
      • Powermanagement (PM+) / WiFiNo
      • GPRSNo
      • Central inverter SCB and SMBNo
      • Max. no. inverters
      • Communication interface
      • Inverter mixed operationNo
      • Measured max. plant size [kWp]
      • Max. cable length
      • String monitoring-depends on inv. modelNo
      • Inverter failureNo
      • Performance monitoring for each inverterNo
      • Status/fault monitoringNo
      • Connection to sensor systemNo
      • Connection to Sensor BasicNo
      • Email and SMS alarmNo
      • Local alarm (pot. free contact)No
      • Yield forecastingNo
      • Degradation calculationNo
      • Connection to digital meter readerNo
      • Integrated webserverNo
      • Graphic visualisation - local PCNo
      • Graphic visualisation - USB stickNo
      • Graphic visualisation - internetNo
      • LED status displayNo
      • Operation on deviceNo
      • Large display RS485/S0 pulseNo
      • Sâ‚€ in/out
      • Ethernet networkNo
      • USB stickNo
      • Analogue modem / GPRS(GSM)No
      • Potential-free contact (relay)No
      • Alarm contact (anti-theft)No
      • Mains voltage / device voltage [Vac/Vdc]
      • Power consumption [W]
      • Ambient Temperature [°C(°F)]
      • Assembly
      • Protection class for logger
      • Connection to Solar-LogTM WEBNo
      • Multilingual (DE, EN, ES, FR, IT, NL)No
      • Memory
      • Connectors
      • Pre-configured (p), Configurable (c)
      • Test Specifications
      • LockableNo
      • Protection Type Connected / Disconnected
      • Approved Temperature Range [°C]
      • Rated Current, Specified Cable Cross-sec
      • Contact Resistance [mΩ]
      • Max. System DC Voltage [V]
      • Protection Class
      • Contact Material
      • Plug Face is Similar to
      • Combinable w original type confirmed by
      • Measurements (length x cross-section)
      • Combiners
      • Usable Cable Cross-section
      • Number of Breakers
      • Number of Fuse Holders
      • Combiner Voltage Rating (VDC)
      • Combiner Maximum DC Current (A)
      • Max. Input Short Cir. Current/String [A]
      • Maximum Continuous Current (A)
      • Max. Input Current Per String (A)
      • Combiner Maximum Voltage (VDC)
      • Combiner Positive Output Wire Size (mm2)
      • Output Wire Size (mm2)
      • Max. Positive Input Wire Size (mm2)
      • Max. Negative Input Wire Size (mm2)
      • Combiner Negative Output Wire Size (mm2)
      • Combiner Input Wire Size (mm2)
      • Combiner Enclosure Rating
      • Combiner Maximum Input Fuse Rating (A)
      • Combiner Operating Temperature (CËš)
      • Cables
      • Reel Length (Imperial)
      • Cable (Wire) Size [mm² (AWG)]
      • Jacket Color
      • Cable Conductor Material
      • Cable Voltage Rating [V]
      • Breakers
      • Circuit Breaker Amps [A]40
      • Poles3
      • AC Voltage Rating [Vac]208/240
      • DC Voltage Rating [Vdc]
      • FusedNo
      • Wireless Characteristics
      • Frequency (GHz) 
      • Output Power (dBm)
      • Throughput (Gbps)
      • Range
      • Min Gain (dBi)
      • Max Gain (dBi)
      • Antenna Type 
      • Number of Antennas
      • Antenna Beamwidth - Azimuth (H) (Degrees)
      • Antenna Beamwidth - Elevation (V) (Degrees)
      • Electrical Beamwidth (Degrees)
      • Polarization 
      • Port to Port Isolation (dB)
      • Min Cross Pol Isolation (dB)
      • Cross Pol Isolation (dB)
      • Front to Back Ratio (dB)
      • PTP or PTMP 
      • Licensed 
      • Wireless Integrated System?
      • WiFi Connector
      • Wireless Connector 
      • Number of Connectors
      • Electrical Tilt Type 
      • Min Electrical Tilt (Degrees)
      • Max Electrical Tilt (Degrees)
      • Mechanical Tilt Type 
      • Min Mechanical Tilt (Degrees)
      • Max Mechanical Tilt (Degrees)
      • Lens
      • Sensor
      • Mounting 
      • Power Method 
      • Voltage
      • PoE Interfaces 
      • PoE Adapter IncludedNo
      • Wireless Technology
      • MiMo
      • Surge Suppression
      • WiFi Standard 
      • Min Concurrent Clients
      • Concurrent Clients
      • Channel Spacing
      • Max Transmit Power (dBm)
      • Video
      • Video Compression 
      • Resolution 
      • Max Frame Rate
      • Image Setting 
      • Night Mode 
      • Microphone
      • View Angle (degree)
      • Switches
      • Switching Capacity (Gbps)
      • Total Non Blocking Throughput
      • Forwarding Rate (MPPS)
      • Ports 
      • No. of Data Ports
      • Regulatory / Compliance Info
      • FCC Regulations 
      • Certifications / Wireless Approval
      • Building Materials
      • Knockout Size (Inch)
      • Outside Diameter (Inch)
      • Inside Diameter (Inch)
      • Wall Thickness (Inch)
      • Material
      • Color
      • Exposure (Inch)
      • Shingles Per Square
      • Wind Resistance (mph)

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      SQUARE-D QO340 PlugOn Breaker 40A 208/240VAC 3-Pole
      Price: Please, login or register to see prices.

      Average Rating

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      Product Features

      SQUARE-D QO340 PlugOn Breaker 40A 208/240VAC 3-Pole 

      Miniature circuit-breaker

      SQUARE-D QO340 PlugOn Breaker Characteristics:
      • Line Rated Current: 40 A
      • Certifications: CSA / UL listed
      • System Voltage: 120 V AC / 120/240 V AC / 240 V AC / 48 V AC
      • Mounting Type: Plug-in
      • Number of Poles: 3P
      • Circuit Breaker Type: Standard
      • Ratings: HACR rated
      • Electrical Connection: Box lugs• Interrupt Rating: 5 kA at: 48 V DC / 10 kA at: 120/240 V AC 50/60 Hz / 10 kA at: 240 V AC 50/60 Hz / 10 kA at: 120 V AC 50/60 Hz
      • Number of Panel Spaces: 3
      • Wire Size: AWG 8...AWG 2 (copper or aluminium)


      Why Need Plug-On Breaker?
      QO (plug-on) and QOB (bolt-on) one-, two- and three-pole thermal-magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. Plug-on QO circuit breakers are for use in QO load centers, NQ and NQOD panelboards, OEM mounting bases, and Speed-D® switchboard distribution panels. Bolt-on QOB circuit breakers are for use in NQO and NQOD panelboards.

      QO and QOB circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quickbreak action and positive handle indication. The tripping mechanisms in two-and three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to open simultaneously. Each pole has an individual thermal-magnetic trip element calibrated for 40°C ambient temperature.

      QO and QOB circuit breakers have Visi-Trip® trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. When the circuit breaker has tripped, the handle assumes a center position and the red Visi-Trip indicator appears in a window in the circuit breaker case. The Visi-Trip indicator is only visible when the circuit breaker has tripped. Trip indication immediately distinguishes the circuit from any other circuit which is merely in the on or off position. The circuit breaker can be reset by pushing the handle to OFF and then to ON.

      Product Specifications

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        Please, login or register to see prices.
        Schneider Electric (Square-D)
        QO340
        79 mm (3.12 in)
        57.15 mm (2.25 in)
        74 mm (2.91 in)
        (0.83 lb)
        No
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