CB-2000
“Take the CB-PRO and make it better!” That is what AMR’s engineers were told to do, and they did it. A new processor core has been added with expanded memory and faster processing/sampling speed. Previously, unique firmware was installed on each unit based upon customer preferences (e.g. communications, enable/disable certain features, etc.). Now, all features are available and user selectable, and there’s room for expansion. If a customer has a set of specific settings for cable(s) or machine(s), we can set up an option where the user selects the cable or machine and all settings are preset. User interface is easier to navigate and scroll through. A backlit display is used to make the screens easier to see in low light conditions. Some customers had nuisance tripping on Phase Current Imbalance. This has been eliminated. The CB-2000’s enclosure is physically stronger and more environmentally sealed. It is a direct drop-in replacement for the CB-PRO, same exact footprint and wiring. For a detailed description and printable information, click below to view the CB-2000 cut sheet.
| ENCLOSURE DIMENSIONS | 5.5″W x 6.625″H x 4.625″D (139.7mm x 168.28mm x 117.48mm) |
| ENCLOSURE RATING | Panel Mount, Powder Coated Aluminum |
| UNIT WEIGHT | 3 LBS (1.36 KG) |
| CONTROL VOLTAGE | 90-130 VAC |
| OPERATING VOLTAGE | 480-1000 VAC |
| BACKUP BATTERY | NO |
| INTERRUPTING CURRENT | 100,000 Amps |
| OPERATING CURRENT | 10-550 Amps |
| OPERATING TEMPERATURE | -40 TO 135 F |
| THERMAL TRIP TIME ACCURACY | +/- 10% |
| INSTANTANEOUS (MAG) TRIP RANGE | 2x to 16x (x=Continuous Current) |
| MAGNETIC TRIP ACCURACY | +/- 10% |
| GROUND FAULT PROTECTION | Adjustable from 1-25 Amps in 0.1 A Increments |
| GROUND FAULT TRIP ACCURACY | +/- 20% @ 1-2 Amps and +/- 10% @ 2.1-25 Amps |
| LOW CONTROL VOLTAGE | Three phase circuit opens when control voltage is 80-85 VAC |
| LOW THREE PHASE VOLTAGE | Adjustable from 1-50% |
| PHASE CURRENT IMBALANCE | Adjustable from 1-50 % |
| LOW PHASE VOLTAGE DELAY | Adjustable from 1-5 seconds |
| PHASE CURRENT IMBALANCE DELAY | Adjustable from 1-5 seconds |
| DISPLAY | 4 line x 20 character LCD with LED Indicators |
| COMMUNICATION PROTOCOLS | RS-485 @ 38.4 kBd, Modbus, or Stand Alone |
| ADDRESS RANGE | 0-255 |
| CLOSE SWITCH | 2 second hold with adjustable 0-10 second contractor close delay |
| WARRANTY | 1 Year |