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Due to our territory agreement with Siemens, Lesman is the authorized Siemens sales representative in Illinois, Indiana, Wisconsin, Eastern Missouri, Michigan's Upper Peninsula, and the Paducah, KY area. If you are outside that area, you can find your local sales office or get technical assistance by calling 800-365-8766 or 972-522-4500, or sending an email to piabusales.industry@siemens.com.

Siemens Milltronics MFA-4P Motion Failure Alarm Controller and Speed Sensors

Composed of powerful, extremely sensitive probes and innovative electronics, the Siemens MFA-4P assures reliable alarm indication for monitoring loss of motion in any conveying and rotating machinery. Not only are the rugged probes impervious to dust, dirt build-up, and moisture, but their non-contacting design eliminates the need for lubricating, cleaning, and replacing of parts.

Key Specifications

  • Up to 4" Gap Between Target and Probe
  • Setpoint Adjustment from 2 to 3000 PPM
  • Adjustable Startup Time Delay
  • Visual Indication of Probe Operation and Relay Status
  • General Purpose, Suitable for Most Industrial Applications

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

A complete catalog number will look like this: 7MH7144-1AA2
Description Catalog Number
MFA-4p Motion Failure Alarm Electronics Unit 7MH7144-
Enclosure NEMA 4X Polycarbonate
NEMA 4X Painted Mild Steel
NEMA 4X Stainless Steel
1A_ _
2A_ _
3A_ _
Speed Detection Version, Switch-Selectable
Speed Standard/Underspeed/Overspeed
Slow/Underspeed/Overspeed
_ _A_
_ _B_
Approvals CE, CSAus/c, FM _ _ _2
MFA-4p Spare Parts and Accessories
Spare MFA 4p Relay
Spare MFA 4p Transformer
Spare MFA 4p Circuit Card, Standard
Spare MFA 4p Circuit Card, Slow Speed
Instruction Manual (Note 3)
7MH7723-1DW
7MH7723-1DX
7MH7723-1DU
7MH7723-1DV
7ML1998-5FM01
Probe
Selection
MSP-3, 1/2" Conduit Entry (Note 1)
MSP-9, 1/2" Conduit Entry (Note 1)
MSP-12, 1/2" Conduit Entry
XPP-5, 1.5 m Cable (Note 2)
7MH7146-0BA
7MH7146-0DA
7MH7146-0EA
7MH7146-0GA
Remote
Amplifier
(Note 1)
Aluminum, 1/2" NPT Entry
Painted Steel, NEMA 4
Stainless Steel, NEMA 4X
7MH7145-0A
7MH7145-0C
7MH7145-0D
Probe and Remote Mount Amplifier Spare Parts and Accessories
Spare Remote Mount Amplifier Card
MSP-3, MSP-9 Lid Gasket
MSP-3, MSP-12, XPP-5 Locknut
MSP-3, MSP-12, XPP-5 Mounting Flange
MSP-3, MSP-12 Lid with 1/2" NPT Conduit Entry
MSP-9 Mounting Bracket
MSP-9 Lid
MSP-12 Lid Gasket
7MH7723-1DT
7MH7723-1CW
7MH7723-1CR
7MH7723-1CS
7MH7723-1CU
7MH7723-1CT
7MH7723-1CV
7MH7723-1CX

Notes:

  1. Requires remote amplifier.
  2. XPP-5 has CSA approval, Class I, Groups A-D, Class II, Groups E-G.
  3. One instruction manual covers the MFA-4p electronics unit, all the probes, and the RMA remote amplifier unit.

Videos

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