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Type 2 Surge Protective Device, 347/600 VAC, Three Phase WYE

M3347-YB

M Series Type 2 Surge Panel, 347/600 VAC, Three Phase WYE, Max Surge Current Rating of 130kA per Mode/260kA per Phase, 200kA Short Circuit Current Rating (SCCR), 20kA I-nominal (ln) Rating, NEMA 4 Rated Enclosure, Thermally Protected MOVs, VPR Performance Data = L-N: 1500, L-G: 1500, N-G: 1500, L-L: 2500, Maximum Continuous Operating Voltage (MCOV): 440V/880V, Plastic Enclosure, LED Status Monitoring, Audible Alarm, UL 1449 Listed, UL 1283 EMI/RFI Filtering

  • Leviton surge protective devices (SPDs) divert damaging voltage transients, or surges, away from electronic equipment
  • Ideal for POINT-OF-ENTRY or MAIN SERVICE ENTRANCE INSTALLATIONS, the M series offers greater protection in a wide variety of voltage configurations
  • Code Compliant – in 2020, Article 230.67 of the National Electrical Code® (NEC) updates required all services supplying dwelling units to be provided with a surge protective device (SPD), as an integral part of equipment or located immediately adjacent. The SPD must be a Type 1 or Type 2 SPD. The 2023 code expanded the requirements to dormitory units, guest rooms and guest suites of hotels and motels, and areas of nursing homes and limited-care facilities used exclusively as patient sleeping rooms
UPC Code: 07847758317

Product Information

  • Warranty

    Warranty : 5-Year Limited

  • Product Features

    Disconnect Switch : No

    Filtering : Yes

    Replaceable Modules : No

    Surge Counter : No

  • Performance Data

    Nominal Discharge Current Rating : 20kA

    Remote Monitoring : Form C Dry ContactS, 240V, 2A

    VPR L-G : 1500.0

    VPR L-L : 2500.0

    VPR L-N : 1500.0

    VPR N-G : 1500.0

  • Enclosure

    Color : Gray

    Connector : 3/4" straight conduit fitting

    Dimensions : 7.69" x 2.99" x 6.89"

    Enclosure Material : Polycarbonate

    Mount : Surface

    NEMA Rating : NEMA 4

  • Environmental Specifications

    Humidity Range : 0 to 95% Non-Condensing

    Storage Temperature : -49°F to 140°F (-45°C to 60°C)

  • Standards, Certifications & Compliance

    ANSI/IEEE : C-62.41.1-2002, C-62.41.2-2002 C-62.45-2002

    CSA : CSA C22.2 No. 269.1-17, 2017-02

    California Prop 65 : Compliant

    RoHS : Compliant

    Series : M Series

    UL : 1449 5th Edition: 2021, cULus

  • Electrical Specifications

    Connection Type : #10 AWG

    Frequency : 50/60Hz

    MCOV : 440V

    Recommended Circuit Breaker Rating : 30A

    Short Circuit Current Rating : 200kA

    Surge Technology : Thermally Protected MOVs

    Type : 2

    Voltage Configuration : 600Y/347 VAC/CA WYE

Max Surge Current Rating (Surge Capacity)

  • The maximum amount of current the device is capable of diverting to ground during a single surge event without performance degradation of more than 10%
  • Higher values are better


Nominal Discharge Current Rating (In)

  • The amount of current the device can divert to ground 15 times under specific test conditions and maintain performance levels
  • Higher values are better


Voltage Protection Rating (VPR)

  • The maximum voltage a surge protector will let through to connected devices
  • Lower values are better


Short Circuit Current Rating (SCCR)

  • The maximum current a device or system can safely withstand for a specified time, or until a specified fuse or circuit breaker opens and clears the circuit


Maximum Continuous Operating Voltage (MCOV)

  • Maximum line voltage (or V rms) that may be applied to the SPD without damaging the MOV
  • A lower MCOV rating allows for a lower VPR, but decreases the life of an MOV


Modes of Protection

  • A mode is a path that has an SPD component between two electrical points
  • More modes is better
  • 7-Mode example:
    • L1-N, L2-N, L3-N, L1-G, L2-G, L3-G, N-G

  • N_A

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