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Honeywell OPAR400 Adjustable Pressure Switch

The Honeywell OP-AR400 is a versatile adjustable pressure switch engineered for demanding industrial environments. It provides reliable pressure sensing and switching capabilities, allowing for precise control of processes and equipment. The switch's adjustable pressure range and durable construction make it suitable for applications such as HVAC systems, fluid power systems, and process automation. Its robust design ensures consistent performance and long-term reliability, contributing to efficient and safe operation.

Authorized Distributors
Source:Newark
Part No:OP-AR400
Stock:1
Inv Date:06-01-2026
Price: Unit price: $447.06
Buy/RFQ:
Source:DigiKey
Part No:OP-AR400
Stock:0
Inv Date:06-01-2026
Price: Unit price: $583.213
Buy/RFQ:
Source:DigiKey
Part No:OP-AR400
Stock:1
Inv Date:06-01-2026
Price: Unit price: $456.27
Buy/RFQ:
Part No:OP-AR400
Stock:0
Inv Date:06-02-2026
Price: Unit price: $508.67
Buy/RFQ:
Part No:OP-AR400
Stock:1
Inv Date:06-01-2026
Price: Unit price: $456.37
Buy/RFQ:

Honeywell OPAR400 Adjustable Pressure Switch Specifications:

  • MTG_HOLE: .250 DIA
  • ROLLER_LEVER: 3.66040350
  • HOLE_FOR_SCREW: No. 10 PAN HEAD SCREW
  • ADJUSTABLE: THRU
  • SCALE: HALF SIZE
  • ACID: 2.750+.008
  • RIGHTHAND: 53 (750 HARDENED REF DIA STEEL
  • ROLLERREF: WIDE
  • ROLLERATINTERVALSLEVER: MAY APPROXBE POSITIVELY0.2° LOCKED
  • MOUNTING_HOLE: 1.56R
  • OPPOSITE_WALL: 2
  • LOCKING: .875 4.015 DIA
  • TYPE_NUT: .375 REF
  • ACROSS_FLATS: 70 LARIELLEé
  • THREAD: 1/2-14 NPT
  • CAPTIVE_COVER_SCREW: 4
  • OPERATING_FORCE: 1/2- 4 CONTACT ARRANGEMENT
  • MOUNTING_SCREW_HOLES: 10-32 UNF -28 THREADS X .219 REF DEEP
  • DIMENSIONS: IN INCHES
  • DIFFERENTIAL_TRAVEL: 007 MAX
  • BASIC_SWITCH_REPLACEMENT: BZ~-2R244-Pi
  • TOLERANCES: TWO PLACE (00) 2.015
  • THREE_PLACE: (.000) $008

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Frequently Asked Questions

Where can I buy Honeywell OPAR400?

You can click on the BUY or RFQ button to purchase OPAR400 from an authorized Honeywell distributor.

How do I troubleshoot issues or seek technical support for part OPAR400?

You can download the OPAR400 datasheet or visit the Honeywell website for support.

Who is the manufacturer of OPAR400?

Honeywell

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