Ionpure DC3, DCR and G4 Power Supplies

Ionpure DC3, DCR and G4 are DC power supplies and controllers that give Ionpure continuous electrodeionization (CEDI) modules a stable direct current. The DC3 is a three-phase unit for 0-600 VDC and 0-15 A, the DCR is a compact single-phase rectifier with five selectable current ranges, and the G4 is a single-phase power controller for 600 VDC and 13.2 A. As Ionpure’s OEM partner in Turkey, Mikron Proses (Üsküdar, Istanbul) supplies these power supplies together with the modules and provides application consulting on selection, panel integration and commissioning.

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Ionpure DC power supplies compared

Power supply	AC input	DC output	Communication / control	Compatible Ionpure modules
DC3 (IP-DC3PH600V-M1)	380–480 VAC · three-phase (no isolation transformer required)	0–600 VDC · 0.1–15 A (3 units in parallel: 45 A)	MODBUS TCP (Ethernet), USB, 4–20 mA retransmit	Ionpure CEDI and NEXED EDR modules; the 600 V DC3 can be used with all LX and VNX models
DCR-M (IP-DCR600V15A-M)	24–600 VAC (UL) / 24–660 VAC (CE) · single-phase (+24 VDC control supply)	20–600 VDC · five current ranges (2.5 / 4.0 / 6.5 / 10.0 / 15.0 A)	MODBUS RTU (RS-485) or 4–20 mA	MX, LX and VNX CEDI modules and NEXED EDR modules
DCR-R2 (IP-DCR600V15A-R2)	24–600 VAC (UL) / 24–660 VAC (CE) · single-phase	20–600 VDC · five current ranges up to 15.0 A	0–5 VDC analog (replaces legacy G2 and PCB power controllers)	MX, LX and VNX CEDI modules and NEXED EDR modules
G4 (IP-POWER-G4-M / G4-R)	220–660 VAC · single-phase (with isolation transformer)	Nominal 600 VDC · five current ranges (2.5 … 13.2 A)	MODBUS TCP (G4-M) or proprietary G2 protocol (G4-R), USB-C, 4–20 mA (G4-M) or 0–5 VDC (G4-R)	MX, LX and VNX CEDI modules; the G4-R retrofits G1, G2 and DCR-R controllers

All Ionpure CEDI modules (LX, MX, VNX) and NEXED EDR modules need an external DC power supply to operate. For the module side, see the Ionpure LX series, the Ionpure MX series and the Ionpure VNX series.

DC3: three-phase power supply

The DC3 (IP-DC3PH600V-M1) combines microprocessor-controlled DC power processing, built-in electrical isolation and MODBUS TCP communication. It connects directly to a 380-480 VAC three-phase line without a separate isolation transformer and delivers 0-600 VDC at 0-15 A DC. The fully enclosed, touch-safe (IP20) housing has a heat-sink chassis and dual fans. For NEXED EDR applications that need higher amperage, an optional paralleling board combines up to 3 DC3 units for 45 A DC at 600 VDC. Over MODBUS TCP-Ethernet, an unlimited number of power supplies can be monitored in a daisy chain from a central location, and constant current, voltage or power control can be programmed from an external HMI or PLC.

DCR: compact rectifier for single modules and retrofits

The DCR is a compact single-phase DC power rectifier designed to power MX, LX and VNX CEDI modules and NEXED EDR modules. It works with 24-600 VAC (UL) or 24-660 VAC (CE) input and delivers 20-600 VDC with five selectable current ranges, from 0-2.5 A up to 0-15 A, so the current limit can be matched to the module size. There are two versions: the DIN rail version (IP-DCR600V15A-M) is the digital version for PLC/HMI integration over MODBUS RTU or 4-20 mA, and the retrofit version (IP-DCR600V15A-R2) replaces legacy G2 controllers directly with a 0-5 VDC analog interface, so existing power panels can be upgraded one by one or all at once. The DCR includes soft start protection and on-board diagnostics, and a 4.3-inch touch panel can monitor and control 1 to 16 DCR units.

G4: single-phase controller

The G4 (operation and maintenance manual IP-MAN-G4-0325-EN, March 2025) is a single-phase power controller for 220-660 VAC input with a nominal output of 600 VDC and 13.2 A. It must be fed through an isolation transformer, and the maximum DC output voltage is about 90% of the AC input voltage. A DIP switch on the front panel selects one of five current ranges (0-2.5 / 0-4 / 0-6.5 / 0-10 / 0-13.2 A), and a rotary switch assigns each unit a station ID from 0-9/A-F, which allows central monitoring of 1 to 16 units from a single touch panel over MODBUS TCP in the 192.168.0.200-215 IP range. The setpoint can come from the IONPURE Touch Panel Display (Ethernet) or from a 4-20 mA analog signal, and the unit does not run without a dry ENABLE contact on terminals P1-3 and P1-4. It is programmed through the USB-C interface with the Power Panel software. Two models are offered: the standard IP-POWER-G4-M and the IP-POWER-G4-R retrofit version for legacy G1, G2 and DCR-R panels. The G4 also logs CEDI module electrical resistance and alerts when cleaning may be required.

Which power supply suits which module

The choice depends on the number of modules, the total current and voltage required and the available electrical supply (single-phase or three-phase). The DC3 is three-phase and supplies up to 15 A at 600 VDC, or 45 A with the paralleling accessory; the DCR and G4 are single-phase. The 600 V DC3 can be used with all LX and VNX models. When upgrading legacy G1, G2 or DCR-R panels, the retrofit versions (DCR-R2 or G4-R) are used. For the selection of a complete EDI system, see EDI system selection.