{"product_id":"airpax-upl111-1-43-402-01-3-pole-circuit-breaker","title":"Airpax UPL111-1-43-402-01 3 Pole Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eAirpax UPL111-1-43-402-01 is a 3‑pole circuit breaker from Airpax (Sensata) with a 4 A current rating and a 250 VAC voltage rating, designed for 400 Hz power systems. This model sits in Airpax’s UPL\/APL family of compact panel‑mount breakers used to protect multi‑phase circuits in aerospace and industrial equipment, ensuring all three conductors trip together for fault conditions. The 400 Hz specification aligns with common aircraft electrical systems, while the 250 VAC rating supports high‑line AC protection in demanding environments. The UPL111‑1‑43‑402‑01 designation encodes its three‑pole configuration within the Airpax catalog, providing reliable overcurrent protection at elevated frequencies. Typical applications include avionics power distribution panels, cockpit or cabin electrical panels, and other 3‑wire, 3‑phase circuits where consistent trip performance at 400 Hz is required. When selecting or replacing this device, verify that the panel footprint and terminal style match your installation and ensure compliance with applicable aerospace electrical standards for correct and safe operation.\u003c\/p\u003e\u003c\/div\u003e","brand":"AIRPAX","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657152135470,"sku":null,"price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_a53f3be5-d42f-4f99-8e43-7eb9cd7241c0.jpg?v=1769466446","url":"https:\/\/plgautomation.com\/products\/airpax-upl111-1-43-402-01-3-pole-circuit-breaker","provider":"PLG Automation ","version":"1.0","type":"link"}