Siemens 49EC18EW362408R - MCCB 600V 400A 3-Pole
Siemens 49EC18EW362408R - MCCB 600V 400A 3-Pole

Siemens 49EC18EW362408R - MCCB 600V 400A 3-Pole

Siemens
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The Siemens 49EC18EW362408R is a heavy-duty industrial circuit breaker designed for primary overcurrent and short-circuit protection in electrical distribution systems. It is rated for 600V AC and 400A continuous current, housed in a robust molded case with a compact frame size for panelboard integration. The breaker features a thermal-magnetic trip mechanism, three-pole configuration, and a 65kAIC at 240VAC interrupting capacity, ensuring reliable fault isolation. It complies with UL 489 and CSA C22.2 standards for safety and performance in commercial and industrial environments. Typical applications include main service disconnects, feeder protection, and branch circuit protection in manufacturing plants, data centers, and large commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker (MCCB), thermal-magnetic trip, three-pole
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: Compact frame size for panelboard mounting
  • Standards: UL 489, CSA C22.2
  • Applications: Main service disconnect, feeder protection, branch circuit protection
  • Switch Type: Circuit breaker
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 400A
  • AIC rating: 65kAIC at 240VAC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: Compact
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Molded case
  • Panel Style: Industrial
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panelboard
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: 400A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: Not specified
  • Enclosure: Open style
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Circuit breaker
  • Wire Size: Not specified
  • Certification: UL 489, CSA C22.2
  • Circuit Breaker Mounting Style: Panelboard
  • Terminal Connection: Lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Siemens panelboards
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Compact
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78308778964
  • GTIN: 00783087789647