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Cutler Hammer AR420A - Motor Control Relay 600VAC 20A

Cutler Hammer
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Cutler Hammer AR420A is a motor control relay designed for protecting and controlling industrial motor circuits. It operates with a maximum control voltage of 600 VAC and is rated for currents up to 20 amps, providing reliable overload protection. The unit measures 2.88 inches in depth, 3.56 inches in height, and 3.44 inches in width, weighing 1.65 lb, and features a compact, durable construction suitable for panel mounting. It is CSA Certified and UL Listed under file E19223, ensuring compliance with North American safety standards. This relay is typically used in motor control centers and industrial automation systems for switching and protecting three-phase motors.

Key Features & Specifications
  • Type: Motor control relay, electromechanical, for overload and switching protection
  • Voltage Rating: 600 VAC maximum
  • Current Rating: 20 amps maximum
  • Dimensions: 2.88 in x 3.56 in x 3.44 in (Length/Depth x Height x Width)
  • Standards: CSA Certified, UL Listed file E19223
  • Applications: Motor control centers, industrial automation, conveyor systems
  • Switch Type: NEMA-rated contactor
  • Configuration: 3-pole, normally open
  • Coil Voltage Maximum: 600 VAC
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 3.0 in x 4.0 in x 4.0 in
  • Phase: 3-phase
  • Voltage: 600 VAC
  • Amperage: 20 A
  • AIC rating: 10 kA at 600 VAC
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overload, phase loss
  • Functions: Motor starting, stopping, overload protection
  • Frame Size: NEMA size 0
  • Trip Type: Thermal bimetallic
  • Panel Type: Open style
  • Breaker Type: Not applicable
  • Control Voltage Minimum: 24 VAC
  • Control Voltage Maximum: 600 VAC
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Open
  • Bus Type: Not applicable
  • 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: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Copper
  • Horse Power: 10 HP at 600 VAC
  • Aux Contacts: 1 N.O. + 1 N.C.
  • CPT: Not included
  • Full Load Amps: 20 A
  • Dist Voltage: 600 VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 20 A
  • Full Load Amp Minimum: 0.1 A
  • Enclosure: Open
  • Relay Style: Electromechanical
  • Coil Voltage Minimum: 24 VAC
  • Wire: Copper
  • Amperage Maximum: 20 A
  • Amperage Minimum: 0.1 A
  • Nema Rating: NEMA size 0
  • Switch Style: Contactor
  • Wire Size: 14 AWG to 10 AWG
  • Certification: CSA, UL
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 508, CSA C22.2
  • Compatible Frames: ND, HND, NDC, CND, CHND, CNDC
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: Size 0
  • Breaker Frame: Not applicable
  • Current Rating: 20 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: 10 W
  • 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: 78667825418
  • GTIN: 00786678254180