MMC397 Series
OD 15.5mm, 24 rings, signal(2A)/ring
MMC397 slip rings
  • MMC397 series is electrical rotary connector,rotary electrical joint with OD 15.5mm, 24 rings, signal(2A)/ring.
  • A slip ring is also called a electrical rotary connector,rotary electrical joint. A slip ring can improve system performance by simplifying operations and eliminating damage prone wires.
  • MMC3979 is the high-end version corresponding to MMC397, ultra-thick gold plating processing, imported bearings, rare metal alloy brush , mainly used in military, defense and other non-civilian areas.
Standard series PART# Explanation

Product Quality Level Table
The difference between MMC397 and MMC3979:
Part#Max speedWorking lifeHousing MaterialElectrical noise①@10Rpm
MMC397250RPM>10 million RevsPlastics10mΩ
MMC39791000RPM>30 million RevsMetal4mΩ

Mechanical dataElectrical data
Working LifeSee Prod Quality LevelPowerSignal
Rotating SpeedSee Prod Quality LevelRated Voltage0~220VAC/VDC0~120VAC/VDC
Working Temp.-30℃~80℃Insulation Res≥100MΩ/220VDC≥100MΩ/150VDC
Operating Humidity0~85% RHLead WiresAWG#30 TeflonAWG#30 Teflon
Contact MaterialSee Prod Quality LevelLead LengthStandard 300mm
Housing MaterialSee Prod Quality LevelDielectric Strength500VAC@50Hz,60s
Torque0.005N.m˙+0.02N.m/6ringRes Noise<0.01Ω
Protection gradeIP51



MMC397 Series Parts# List
Part#Signal/1ATotal Wires

Our economical, compact electrical rotary connector,rotary electrical joint MMC family allows tremendous flexibility in dealing with systems size requirements when larger versions are not an option. Capsules with up to 56 contacts are available.

If you have special requirements, please contact customer service.

More product references in the same series:
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