Product Description

This Hobbs hour meter pressure switch associated with model series M4006 operates as a normally open pressure-activated device that closes at 4 PSI to control an hour meter or similar load in response to system pressure.

0 1. Overview

The pressure switch identified with model 76575-4C01 provides a single electrical circuit with two insulated terminals housed in a weatherproof case for protected installation. Silver contacts inside the enclosure provide the switching interface between the circuit terminals. A 1/8 inch male pipe thread connection serves as the pressure port, allowing direct mounting to a tapped pressure line or manifold. The device functions as a normally open switch that closes when system pressure reaches 4 PSI, establishing continuity in the monitored circuit. The M4006-4 variant is supplied with a manufacturer certificate of conformance and does not carry FAA TSO approval.

0 2. Key Features

  • Normally open pressure switch function
  • Switch closes when system pressure reaches 4 PSI
  • Single circuit configuration
  • Two insulated electrical terminals
  • Silver electrical contacts
  • Weatherproof case construction
  • 1/8 inch male pipe thread pressure connection
  • Associated with Hobbs M4006-4 hour meter application
  • Manufacturer certificate of conformance available
  • Not FAA TSO approved
0 3. Specifications

Associated Model Series: Hobbs M4006-4
Manufacturer Model: 76575-4C01
Functional Type: Normally open pressure switch
Switching Pressure: 4 PSI closing pressure
Electrical Circuit: Single circuit
Terminals: Two insulated terminals
Contact Material: Silver contacts
Enclosure: Weatherproof case
Process Connection: 1/8 inch male pipe thread

FAQs

01. What is the switching function of the Hobbs pressure switch associated with model M4006-4?

It is a normally open pressure switch that closes at 4 PSI.

02. How many electrical circuits does this Hobbs hour meter pressure switch provide?

It provides a single electrical circuit.

03. What type of electrical terminations are provided on this Hobbs pressure switch?

It has two insulated terminals for electrical connection.

04. What connection size is used for mounting this Hobbs pressure switch to the pressure source?

It uses a 1/8 inch male pipe thread connection to the pressure source.

05. Is the Hobbs M4006-4 style pressure switch FAA TSO approved?

The M4006-4 style pressure switch is not FAA TSO approved, though a manufacturer certificate of conformance is available.

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