Low-Current Motor Contactor Wiring (22 Amps or Less)

If your motor draws 22 Amps or less, you can bypass the standard Switch Box and drive a contactor directly from a Mixmate (Praxidyn) module using a specific WEG low-current coil contactor.

[!WARNING]

Manual Override: If you require a physical manual override switch, you must wire through a Mixmate Switch Box. The direct-drive method described here is for automated control only.

1. The Component

The WEG CWC series contactors are designed with coils that draw low enough amperage to be powered directly by the Mixmate's output pins. These can be sourced from vendors like Automation Direct.

Part Number Logic:

• Base Pattern: CWC - [Amp Rating] - [Aux Contacts] - 30R02 (or 30L02)

• Example: For a 16-amp rated contactor with no auxiliary contacts, use part number: CWC016-00-30R02.

2. Wiring to the Praxidyn Module

Because the coil is low-current, you wire it similarly to a standard solenoid valve.

• A2 Terminal (Contactor): Connect to a Mixmate Ground.

• A1 Terminal (Contactor): Connect to the Desired Output Pin on the Praxidyn Module (e.g., the pin assigned to that specific pump in your setup).

3. Metric & Technical Specs

• Max Load: 22 Amps (approx. 16.4 kW at 120V or 32.8 kW at 240V depending on phase, but check your specific motor's nameplate).

• Wire Gauge: 14-gauge (2.5 $mm^2$) is typically sufficient for these coil connections, but always match your wire size to the motor's total amp draw for the main load lines.

The part number for this is as follows : CWC -  - 30R02 or - 30L02.