HOFF-E CTMB4001L CT Mounting Base 4
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Manufacturer Hoffman Engineering
Mfg Catalog # CTMB4001L
North Coast Part # 1167192


  • Spacing for bar-type current transformer that conforms to ANSI 12.11
  • Conductor provisions: either mechanical lugs or 1/2-in. bolt on 1-3/4-in. centers with nut, spring and flat washer
  • Neutral bar with 10-32 tap screw
  • 12-gauge galvanized formed base has electrically isolated mount/termination platform


  • Bulletin Number: A90CM
  • Model Code: 15638
  • Ship Wt. Std. Pkg. (lbs): 24.0
  • Interchangeable: False
  • Catalog Number: CTMB4001L
  • Connection: Lugs
  • A.I.C. Rating: 50,000
  • Ampacity: 400
  • Voltage Max. VAC: 600
  • Service Type: 1Ø3W
  • No. of CT Provisions: 2
  • Standards: UL 414 Listed; File E240312Wire range per phase: (3) 750MCM to 1/0 or (6) 250MCM to 1/0



UPC 78351015638
GTiN 00783510156381
Type CT Mounting Base
Material Steel
Applications Available in three variations of conductor connection styles to match your application: 1/2-in. studs on 1-3/4-in. centers, a model with mechanical lugs and a model with lugs on one side and studs on the other to accommodate the preference difference between line and load connections. Pre-punched mounting base holes align with the studs in a CT enclosure.
Standard File E240312,UL 414 Listed
Family Brand Name Hoffman
Sub Brand Hoffman

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