ABB 3AXD50000033270 MIRU‑01 Insulation Resistance Measurement Unit

Technical Specifications

Model:3AXD50000033270(MIRU‑01)

Brand:ABB

Product Type:Insulation resistance measurement unit

Applicable Drive:ABB ACS880 series multi‑drive / single‑drive frequency converter

Monitoring Object:Motor winding insulation resistance

Measurement Function:Real‑time insulation resistance value acquisition,insulation degradation trend monitoring

Alarm Function:Insulation resistance threshold alarm,insulation fault signal output

Interface:Signal interface connect to drive control unit

Power Supply:Auxiliary power supplied by frequency converter

Feature:Online monitoring,no need stop motor,parameter configurable alarm threshold

System Compatibility:ABB ACS880‑01,ACS880‑04,ACS880‑104 series drives

Remark:EOL spare component;match drive firmware version before installation

Module Form:Plug‑in accessory unit

Weight:1.00 kg

Dimension:210 mm×145 mm×62 mm

Protection Grade:IP20

Certification:CE

Working Temperature:‑10℃ ~ +60℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Petrochemical,power plant,metallurgy,paper‑making industry,monitor motor winding insulation status in real‑time,predict insulation aging,prevent motor insulation breakdown accident,equipment maintenance and spare‑part replacement.

Product Details

3AXD50000033270,type designation MIRU‑01,is ABB dedicated insulation resistance measurement unit for ACS880 series frequency converter. It is used for online monitoring of motor winding insulation resistance.

The module collects insulation resistance data of motor windings in real‑time during drive operation. Users can configure insulation resistance alarm threshold via drive parameters. When insulation performance degrades to set threshold,module will trigger fault alarm to remind maintenance personnel,effectively prevent motor insulation breakdown failure. It communicates with drive control unit through dedicated signal interface.

Support online monitoring without shutting‑down motor. Widely used in high‑reliability industrial occasions requiring motor insulation status prediction.

Note:This is legacy EOL spare component,widely used for industrial drive spare‑part replacement.