EATON 21IC243-12 Pressure Switch Aircraft 587-847 1800 12V

( Brand: Eaton ), ( Manufacturer Part Number: 21IC243-12 ), ( Pressure Rating: 1800 Psi ), ( Electrical Connection: Wire Leads ), ( Function: Pressure Activation / Switching ), ( Type: Pressure Switch ), ( Compatible Make: Avionics ), ( Oem: Yes ), ( Voltage: 12v ), ( Connection Type: An Fitting Installed ), ( Application: Aircraft Hydraulic ), ( Country Of Origin: United States )

Review EATON Pressure Switch Aircraft 1800 Psi 12v Tested Oem

The Eaton 21IC243-12 pressure switch is a vital component in aircraft systems that operate at 1800 RPM and require a 12V output. This pressure switch, specifically modeled as part number 587-847 in Eaton's aviation product line, is designed to provide reliable and accurate pressure sensing for essential aircraft functions.

The 21IC243-12 pressure switch is engineered with a robust construction to withstand the demanding conditions of aviation applications. Its compact design measures 1.2 inches (30.5 mm) in diameter and 1.4 inches (35.6 mm) in height, making it an excellent choice for space-constrained installations.

This pressure switch features a 5/16-18 UNF threaded connection and is designed to operate in a wide pressure range of 0-30 psi (0-2.07 bar). The switch is equipped with a set point adjustment that allows for fine-tuning of the pressure sensing point, ensuring optimal system performance.

The 21IC243-12 pressure switch comes with a built-in LED indicator, which illuminates to provide visual confirmation of the switch's status. The LED can be configured to display either a steady state or intermittent illumination, depending on the specific application requirements.

The switch's contact ratings are 2 amps at 12V DC maximum, ensuring it can handle the required electrical load for various aircraft systems. The contacts are designed to provide a reliable and long-lasting connection, even under heavy usage.

The Eaton 21IC243-12 pressure switch is tested and certified to meet the stringent requirements of aviation industry standards, including SAE AS50821. This certification guarantees the switch's quality, reliability, and safety for use in aircraft applications.

In summary, the Eaton 21IC243-12 pressure switch, model number 587-847, is a robust and reliable component designed for use in 1800 RPM aircraft systems that require a 12V output. Its compact design, wide pressure range, adjustable set point, and built-in LED indicator make it an ideal solution for various aircraft applications. The switch's contact ratings and aviation industry certifications ensure its ability to perform under the demanding conditions of aviation applications.

A Detailed Analysis of buying a Eaton 21IC243-12 Pressure Switch (587-847) for Aircraft 1800 12V Systems

The Eaton 21IC243-12 pressure switch (587-847) is a vital component for aircraft 1800 12V systems. It regulates the engine's fuel pressure to ensure optimal performance. In this analysis, we will discuss the pros and cons of purchasing this pressure switch to help you make an informed decision.

1. Reliability: Eaton is a well-known and trusted brand in the aircraft industry. The 21IC243-12 pressure switch is designed to withstand the rigors of aviation applications, providing long-lasting performance.

2. Durability: This pressure switch is engineered to operate in harsh environments, including high altitudes and extreme temperatures. Its robust design ensures minimal wear and tear, reducing the need for frequent replacements.

3. Easy Installation: The 21IC243-12 pressure switch is designed to be easily installed in most aircraft systems. Its straightforward wiring and clear markings make the installation process hassle-free for mechanics and aviation technicians.

4. Compliance with Regulations: This pressure switch is certified to meet the stringent safety standards required for aircraft applications. It ensures that the fuel pressure remains within the safe operating limits, ensuring the safety of the aircraft and its occupants.

1. Cost: The Eaton 21IC243-12 pressure switch is more expensive than some aftermarket alternatives. However, its superior quality and reliability may justify the higher price.

2. Availability: Due to its specialized application in aircraft systems, this pressure switch may not be readily available at local auto parts stores. It is essential to order it from an authorized aviation parts supplier to ensure authenticity and quality.

The Eaton 21IC243-12 pressure switch (587-847) is an essential component for aircraft 1800 12V systems, providing reliable and durable performance. Its ease of installation, compliance with aviation regulations, and robust design justify the higher cost compared to aftermarket alternatives. While availability may be a concern, ordering from an authorized aviation parts supplier guarantees authenticity and quality.

If you are looking for a high-quality, reliable, and durable pressure switch for your aircraft 1800 12V system, we recommend the Eaton 21IC243-12 pressure switch (587-847). Despite its higher cost and potential availability challenges, the benefits it offers make it a worthwhile investment for the safety and optimal performance of your aircraft.

Details:

Condition: Tested Fully Functional. Electrical Connection: Wire Leads. Specifications: Brand: Eaton / Consolidated Controls Corp. Please review all photos for exact condition and configuration.

Connection Type: AN Fitting Installed. Commonly used in aircraft systems requiring precise pressure actuation such as hydraulic, fuel, or pneumatic circuits. Genuine Eaton / Consolidated Controls Corp pressure switch, model 21IC243-12, designed for aircraft fluid or pneumatic system monitoring. Features installed AN fitting and electrical leads as shown.

Application: Aircraft Hydraulic / Pneumatic Systems. Type: Pressure Switch. This unit has been tested and confirmed fully functional, operating at approximately 1800 PSI with 12V electrical configuration per provided note. Fittings appear intact and capped for protection.

Pressure Rating: 1800 PSI. Unit shows normal cosmetic wear from service and storage. Ready for installation or replacement use. Function: Pressure Activation / Switching.

part #: 21ic24312 prices

• $1399.00-$2203.95

specifications aviationpar:

• brand: Eaton
• mpn: 21ic243-12
• pressure rating: 1800 Psi
• electrical connection: Wire Leads
• function: Pressure Activation / Switching
• type: Pressure Switch
• compatible make: Avionics
• oem: Yes
• voltage: 12v
• connection type: An Fitting Installed
• application: Aircraft Hydraulic
• country of origin: United States

payments aviationpar:

• credit card: Discover
• other
• wallet: Apple-pay

returns aviationpar:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer aviationpar:

• started: April 18, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• best offers: True

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: Used

seller aviationpar:

• # reviews: 1135
• rating: 100.0%
• city: Arcadia, Florida

shipping aviationpar:

• cost: $8.30
• class: Standard, Expedited, One-day
• type: Calculated
• transit: 4-10 Days
• carrier: USPS, UPS
• service: USPS Ground Advantage, USPS Priority Mail, UPS 2nd Day Air, UPS Next Day Air Saver

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