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Square D ARP090 - Rating Plug for 4000A Frame Breakers

Square D
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Square D ARP090 is a Micrologic rating plug designed for configuring and setting the current rating of compatible Square D Masterpact circuit breakers. It establishes a maximum continuous current rating of 4000A for breakers within the 4000A frame size, with a configurable range from 100A to the full 4000A. This compact, 1 lb plug is engineered for integration with a wide array of Micrologic trip unit families, including LX, MX, NX, PX, and SE series. It ensures precise overcurrent protection coordination in compliance with industrial protection standards, making it essential for critical power distribution in data centers, industrial plants, and large commercial facilities.

Key Features & Specifications
  • Type: Micrologic Electronic Trip Unit Rating Plug (ARP)
  • Current Rating: 4000A maximum (adjustable from 100A)
  • Frame Size: 4000A
  • Compatible Frames: LX, LXP, LXL, LXF, LE, LEP, LEL, LEF, MX, MXP, MXL, MXF, ME, MEP, MEL, MEF, NX, NXL, NXP, NXF, NE, NEL, NEP, NEF, PX, PXF, PXL, PXP, PE, PEL, PEP, PEF, SED, SEHD, SEF, SEHF
  • Trip Type: Micrologic
  • Weight: 1 lb


Product Identification
  • UPC: 785901062523
  • GTIN: 785901062523