1. Basic Product Overview

• MXN: Compact miniaturized regenerative converter derivative of MR5 series for machine tool DC bus power source

• N: Integrated built‑in DC24V auxiliary control power supply for CNC peripheral control circuit power supply

• 20 = 200V three‑phase AC input voltage grade; 225 = rated matching 22kW spindle load capacity (standard marking alias of 22kW model)

  Application: CNC lathe, vertical machining center; centralized DC power source for multiple CIMR‑M5N spindle inverters, four‑quadrant active grid energy regeneration, eliminate external braking resistor installation

  Production Status: Original OEM discontinued production; only surplus new old stock & refurbished replacement units available for old CNC equipment maintenance

2. Electrical Technical Parameters

3‑Phase AC Input Specification

• Rated input voltage: AC200~220V (50Hz), AC200~230V (60Hz)

• Rated input apparent power: 36kVA

• Continuous rated input current: 61A; 30min short‑time overload input current: 83A

DC Bus Output Specification

• Nominal fixed DC bus voltage: DC270V~325V

• Continuous rated DC output power: 22kW; peak overload supporting power: 27.2kW

• Continuous rated DC output current: 70A; 30min overload DC output current: 95A

• Auxiliary built‑in: Onboard DC24V regulated auxiliary power output for external CNC controller, proximity switch and relay power feed

3. Environmental & Mechanical Data

• Net unit weight: 10.5kg

• Cooling type: Built‑in axial fan forced air cooling

• Working ambient temperature: 0℃ ~ +40℃; storage temperature range: -20℃ ~ +60℃

• Installation requirement: Indoor cabinet wall mount; ambient free of corrosive gas, conductive dust and dew condensation, operating humidity 5%~95%RH non‑condensing

4. Core Functional Characteristics

1. Full active mains regeneration: Spindle deceleration braking energy fed back directly to industrial AC grid, greatly reduce cabinet heat generation and cancel external braking resistance

2. Multi‑inverter parallel DC bus supply: Single CIMR‑MXN20225 can supply shared DC power for several parallel CIMR‑M5N spindle drives on one machine tool

3. Standard matched pairing: Matched with CIMR‑M5N2022 22kW spindle inverter to constitute complete closed‑loop vector spindle control system, support spindle orientation and automatic tool change function of CNC machine

4. Comprehensive multi‑protection: Overcurrent, overvoltage, undervoltage, input phase loss, heatsink overheat, electronic overload protection; equipped with fault relay contact output for CNC system interlock alarm stop

5. Replacement Upgrade Option