Siemens Industry S3042B3100 120/208/240 VAC 100 Amp 3-Phase 3/4-Wire NEMA 1 Main Breaker/Convertible Load Center
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Manufacturer Siemens
Mfg Catalog # S3042B3100
North Coast Part # 754089


  • A 3-phase, 120/240 or 120/208 -Volt, 100-Amp main breaker load center with 30-spaces/42-circuits
  • Aluminum bus
  • Ground bar field installed
  • Combination head screws on neutrals, ground, trim, upper pan and bond screw provide installation flexibility
  • Dual side inboard neutral
  • Invertible for bottom feed application
  • All ES series load centers allow the main breaker to be converted to main lug, but not vice versa
  • Mounting tabs on the trim hold it in place on the load center, freeing up both hands to drive the trim screws
  • Pre-positioned bond screw eliminated bond straps/screw assemblies, and reduces the risk of losing components in the field
  • Insta-wire neutral/ground system allows for faster installation because screws arrive backed out, ready for wire insertion, the visible neutral and grounds systems also aids in the insertion of conductors


  • Certificate of suitability: UL
  • Ampacity: 100 A
  • Voltage between phase and Ground (GND) rated value: 120 V
  • Voltage between phase and phase rated value: 208 V
  • Configuration of the busbars: ALUMINUM BUS
  • Phase number: 3
  • Mounting type: FLUSH / SURFACE
  • Number of circuits in a trunking unit: 42
  • Design of the housing: TYPE 1
  • Size of the circuit-breaker: 100A
  • Number of width units for installation width: 30
  • Product brand name: SIEMENS
  • Product type designation: ES SERIES ASSEMBLED LOAD CENTER
  • Special product feature: GREY TRIM
  • Product sub brand name: LOAD CENTERS
  • Switching capacity current acc. to EN 60898 rated value: 22000 A


UPC 66264392617
Item Long Description The new Siemens ES Series Load Center is the smart choice when value and quick installation are of highest priority. The ES Series load centers include labor saving features such as the patented Insta-wire and mounting trim tabs. These exclusive features make the ES Series load center the best load center for the value minded contractor.
GTiN 00662643926170
Size 2738.4375
Voltage 120/240 Volt
Mounting Type FLUSH / SURFACE
Family Brand Name Siemens
Circuit Breaker Type 100A
Number of Phases 3 Phase
Amperage 100 Amp
Cover Type ES Series
Number of Spaces 30
Interrupt Rating 22000 A
Enclosure TYPE1
Sub Brand UL
Cable Size N/A

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