--- type: product schema_version: 1 stock_number: "52413-2" canonical_url: "https://www.artisantg.com/52413-2/Parker-003-3438-03-H7L7" json_url: "https://www.artisantg.com/52413-2/Parker-003-3438-03-H7L7.json" generated_at: "2026-11-07T03:36:57.095Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Parker 003-3438-03/H7L7 Reed Switch _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Parker - Model: 003-3438-03/H7L7 - Condition: Used and in Good Condition - Price: $55.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 1 lb, estimated - Shipping dimensions: 8X8X3 in, estimated ## Categories - Industrial Systems Equipment > Miscellaneous > Other Industrial (primary) ## Details This unit has a corroded connector. View Photo of corroded connector. ## Overview A magnetically actuated electrical switch containing hermetically sealed contacts within a glass envelope, designed to detect the presence or absence of magnetic fields from permanent magnets or electromagnets. The device features normally open or normally closed dry contacts rated for low voltage DC applications, typically switching currents under 500mA at voltages below 100VDC. The reed element responds to magnetic field strength measured in gauss, with typical operate and release thresholds within 10-50 gauss differential. Commonly integrated into pneumatic and hydraulic cylinder position sensing systems, proximity detection circuits, security alarm systems, and automated machinery control applications where non-contact switching operation and high cycle life are required. ## Function Designed to detect magnetic fields and produce electrical signals upon proximity changes, this reed switch functions as a reliable sensor or relay input within electronic or electromechanical systems. It operates on a hardware platform requiring minimal power and integrates via electrical leads or terminals to control circuits, microcontrollers, or monitoring devices. Common applications include position sensing, speed detection, and safety interlocks in industrial automation, automotive systems, and consumer electronics. ## Platform Compact industrial and automation systems requiring non-contact magnetic sensing; designed for integration with M8 connector-based sensor interfaces; operates within 4.75-30 VDC supply range, handling up to 100 mA current; interfaces typically include three-pin M8 standard connectors or 2-meter cables for flexible sensor deployment; commonly used in pneumatic cylinders, position sensing, and safety interlock applications within machinery control platforms. ## Application End-of-stroke sensing for linear actuators in automated machinery. Intermediate position detection in pneumatic or hydraulic cylinder applications. Used in material handling, packaging, and assembly automation for sequencing and safety interlocks. Provides position feedback for process control in clamping, pressing, or part ejection operations. ## Accessories DIN 43650 Form A connector, 3-pin, 9.4mm pin spacing. Requires mating connector for wiring to power source and control system. Provides NO/NC switch output. ## Interface Electrical terminals for DC voltage switching up to 200V, 0.5A maximum current rating. Standard two-wire normally open contact configuration with screw terminal connections. Magnetic actuation interface requires external permanent magnet for operation. Operating gap typically 0.5-20mm depending on magnet strength. Temperature range -40°C to +125°C. Hermetically sealed glass envelope construction with rhodium-plated contacts. Standard industrial mounting with threaded housing for panel or bracket installation. ## Images - - - -