moflon slip rings
MMC250 Slip Rings

OD 12.50mm(0.49"),Length 25mm(0.98"), 12wires* 2A(signal)

MMC250 slip rings are small and compact with OD 12.5mm * L 25mm, standard, off-the-shelf.Color-coded lead wires are used on both the stator and rotor for simplified electrical connections. Using a 90° V-groove ring design for each ring.

MMC2509 is the high-end version corresponding to MMC250, It has higher performace and longer working life, higher speed rotating speed,low noise, Pealse refer to table 2 as below.

part # OD * L signal/2A 4A 8A 15A Total wires download
MMC25012.5mm*25mm1200012PDF CAD
Shared Specifications
Wires12(see table as above)CurrentSignal(2A)
Voltage240 VDC/VACMax speed250RPM
Overall diameter12.5mm(0.49")Length25mm(0.98")
Contact MaterialPrecious Metal:gold-goldContact Resistance<150mOhm(AWG28#,250mm)
Housing MaterialPlasticsTorque0.02N.m
Working lifedepends on working speedElectrical noise<10mΩ
Dielectric strength600VDC@50HzLead WireUL Teflon® Awg30
Insulation resistance1000MΩ@500VDCLead Lengths250mm
Operating Temp.-40°C to 80°CProtectionIP51
Mechanical vibratioMIL-SID-810EHumidity10% to 90% RH
MaterialsLead Free,RoHS compliantCE CertifiedYES

1)The operational life of the unit is dependent upon rotational speed, environment and temperature.
2)Lead Wire size: 2A/signal -> AWG30, colored code.
3)Electrical noise is dependent upon the rotating speed and current,voltage.


Max SpeedWorking lifeTorque Housing
Electrical noise①
MMC250250RPMdepends on working speed0.02 N·mPlastics10mΩ
MMC2509800RPM1depends on working speed0.005 N·mMetal4mΩ