{"product_id":"condor-mdr3-4-port-pressure-switch-overload-unloader","title":"Condor MDR3 4-Port Air Compressor Pressure Switch — Adjustable Overload, On\/Off Lever \u0026 Unloader","description":"\u003cp\u003eThe Condor MDR3 is a heavy-duty 4-port pressure switch with a built-in adjustable motor overload relay — combining automatic compressor control and motor protection in a single device. As tank pressure rises and falls, the switch starts and stops the motor; the integrated thermal overload trips on excess current to guard the motor windings, effectively acting as a manual motor starter. An on\/off lever lets you isolate the compressor, and the 90° compression unloader valve bleeds trapped head pressure so the motor restarts under no load.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4-port configuration with 1\/4\" FNPT connections\u003c\/li\u003e\n\u003cli\u003eAdjustable thermal overload protection (current ranges from 6.3 A up to 30 A)\u003c\/li\u003e\n\u003cli\u003ePressure ranges available from 80–100 PSI through 215–250 PSI\u003c\/li\u003e\n\u003cli\u003eMaximum switching capacity 30 FLA at 220 V\u003c\/li\u003e\n\u003cli\u003eSuitable for single-phase and three-phase motors (2-pole and 3-pole models)\u003c\/li\u003e\n\u003cli\u003eManual ON\/OFF lever for safe isolation\u003c\/li\u003e\n\u003cli\u003eIntegrated 90° compression unloader valve for easy, loaded-free restarts\u003c\/li\u003e\n\u003cli\u003eNEMA 1 enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003eIdeal for reciprocating and rotary air compressors where both automatic pressure control and motor overload protection are required — shop and industrial compressors, pumps, and other motor-driven equipment. Select the pressure range to match your tank's cut-in\/cut-out and set the overload to your motor's full-load amperage.\u003c\/p\u003e\n\u003cp\u003eThe Condor MDR3 4-port pressure switch with adjustable overload, on\/off lever, and unloader delivers reliable compressor control and built-in motor protection in one rugged, field-adjustable unit.\u003c\/p\u003e","brand":"Condor","offers":[{"title":"80-100 PSI \/ 16-20A","offer_id":54254871544083,"sku":"31EG3EJX","price":164.17,"currency_code":"USD","in_stock":true},{"title":"80-100 PSI \/ 20-24A","offer_id":54254871576851,"sku":"31EG3ELX","price":166.67,"currency_code":"USD","in_stock":true},{"title":"80-100 PSI \/ 22-30A","offer_id":54254871609619,"sku":"31EG3EMX","price":168.33,"currency_code":"USD","in_stock":true},{"title":"100-125 PSI \/ 6.3-10A","offer_id":54254871642387,"sku":"31GG3EEX","price":161.25,"currency_code":"USD","in_stock":true},{"title":"100-125 PSI \/ 10-16A","offer_id":54254871675155,"sku":"31GG3EGX","price":162.92,"currency_code":"USD","in_stock":true},{"title":"100-125 PSI \/ 16-20A","offer_id":54254871707923,"sku":"31GG3EJX","price":164.17,"currency_code":"USD","in_stock":true},{"title":"100-125 PSI \/ 20-24A","offer_id":54254871740691,"sku":"31GG3ELX","price":166.67,"currency_code":"USD","in_stock":true},{"title":"100-125 PSI \/ 22-30A","offer_id":54254871773459,"sku":"31GG3EMX","price":168.33,"currency_code":"USD","in_stock":true},{"title":"120-150 PSI \/ 6.3-10A","offer_id":54254871806227,"sku":"31QG3EEX","price":161.25,"currency_code":"USD","in_stock":true},{"title":"120-150 PSI \/ 10-16A","offer_id":54254871838995,"sku":"31QG3EGX","price":162.92,"currency_code":"USD","in_stock":true},{"title":"120-150 PSI \/ 16-20A","offer_id":54254871871763,"sku":"31QG3EJX","price":164.17,"currency_code":"USD","in_stock":true},{"title":"120-150 PSI \/ 22-30A","offer_id":54254871904531,"sku":"31QG3EMX","price":168.33,"currency_code":"USD","in_stock":true},{"title":"140-175 PSI \/ 6.3-10A","offer_id":54254871937299,"sku":"31KG3EEX","price":161.25,"currency_code":"USD","in_stock":true},{"title":"140-175 PSI \/ 10-16A","offer_id":54254871970067,"sku":"31KG3EGX","price":162.92,"currency_code":"USD","in_stock":true},{"title":"140-175 PSI \/ 20-24A","offer_id":54254872002835,"sku":"31KG3ELX","price":166.67,"currency_code":"USD","in_stock":true},{"title":"140-175 PSI \/ 22-30A","offer_id":54254872035603,"sku":"31KG3EMX","price":168.33,"currency_code":"USD","in_stock":true},{"title":"215-250 PSI \/ 10-16A","offer_id":54254872068371,"sku":"31TG3EGX","price":162.92,"currency_code":"USD","in_stock":true},{"title":"215-250 PSI \/ 22-30A","offer_id":54254872101139,"sku":"31TG3EMX","price":168.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/condor-mdr3-4port.png?v=1780954127","url":"https:\/\/aircompressorstore.com\/products\/condor-mdr3-4-port-pressure-switch-overload-unloader","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}