Description
McQuay POL687.70/MCQ
Reliable electronic control for McQuay screw compressor systems
| Brand | McQuay |
| Model | POL687.70/MCQ |
| Voltage | 24V DC |
| Country of Origin | China |
| Weight | 0.35 kg |
| Dimensions | 120 x 80 x 35 mm |
| Warranty | 6 months |
| Certifications | CE, RoHS |
| SKU / MPN | POL687.70/MCQ |
| What’s in the box | Controller, wiring diagram, mounting hardware, manual |
| Controller Type | Digital screw compressor controller |
| Power Supply | 24V DC |
| Inputs | Pressure and temperature sensor inputs, digital inputs |
| Outputs | Relay outputs for compressor and auxiliary loads |
| Communication | RS-485 Modbus RTU |
| Protection | Overload, phase-loss, and sensor-fault protection |
Key benefits: Centralized compressor control, diagnostic functions, flexible sensor inputs, relay outputs, easy integration
Typical applications: HVAC systems, industrial refrigeration, screw compressor packages, process cooling equipment
Lifecycle: Active replacement part for supported McQuay screw compressor systems
Our Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don't worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitive pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.
James P. –
The power supply unit is stable under full load. Better than expected.