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Square D 8501DD042 - Definite Purpose Contactor 40A 600V AC

Square D
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Square D 8501DD042 is a Type DD electromechanical definite purpose contactor designed for switching resistive and inductive loads in industrial control systems. It operates with a maximum coil voltage of 600V AC and a continuous current rating of 40 amps, supporting single-phase or three-phase configurations. The contactor weighs 5.19 lb and features a compact, open-style construction with silver alloy contacts for reliable performance. It complies with NEMA and UL standards for industrial motor control and lighting applications. This contactor is typically used in HVAC equipment, pump controls, and conveyor systems requiring dependable load switching.

Key Features & Specifications
  • Type: Definite purpose contactor, electromechanical, open style
  • Voltage Rating: 600V AC maximum
  • Current Rating: 40 amps continuous
  • Coil Voltage Maximum: 600V AC
  • Weight: 5.19 lb
  • Standards: NEMA, UL listed
  • Applications: HVAC, pump controls, conveyor systems
  • Switch Type: Electromechanical contactor
  • Configuration: Single-phase or three-phase
  • Phase: 1 or 3
  • Amperage: 40 A
  • Poles: 2 or 3 (depending on configuration)
  • Mounting: Panel mount
  • Hz: 50/60
  • Coil Material: Copper wire
  • Horse Power: Up to 10 HP at 240V AC
  • Enclosure: Open (no enclosure)
  • Nema Rating: NEMA 1 (when installed in appropriate enclosure)
  • Certification: UL, CSA
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Line and load
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: N/A (contactor only)
  • Operating Temperature Maximum Celsius: 40°C


Product Identification
  • UPC: 785901850104
  • GTIN: 00785901850104