Product image is representative; revision or series may vary. Contact us to request a specific version.
825-MD
The 825-MD module has been manufactured by Allen-Bradley/Rockwell Automation as part of the Bulletin 825 series of external protection modules for 3-phase motors. It is a basic type of Bulletin 825 protection module. The 825-MD basic protection module operates with a voltage range between 120 and 22 Volts AC at 50 to 60 Hertz frequency. It supports flush mounting or surface mounting and it can be protected by an IP 65 rated enclosure. The 825-MD basic protection module can operate at a maximum ambient temperature of 60 degrees Celsius.
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Technical specifications for 825-MD
| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Basic Unit |
| Product Line | 825 Smart Motor Managers |
| Part Number | 825-MD |
| Weight | 3.00 lbs (1.36 kg) |
| Voltage | 120-220V ac |
| Rated Motor Current or Operating Current | 0.5-2000A |
| Communication | DeviceNet Remote I/O Modbus |
| Thermal Overload Off or On | On |
| Asymmetry Range | 5-80% |
| High Overload Range | 1-6 Ie |
| Underload Range | 25-100% |
| Underload Tripping Delay Range | 0-240 s |
| Earth Fault Range | 10-100% |
| Start Time Monitoring Tripping Delay Range | 1-240 s |
| Limited Number of Starts per Hour Range | 1â?¦10 |
The Allen-Bradley 825-MD is a smart motor manager basic unit with a control voltage rating of 120-220V AC. This motor protection system has a frequency rating of 50-60 Hz and continuous thermal current of 4 A, as well as an amperage rating and full-load current range of 0.5-2000 A each. This motor manager’s maximum switching voltage is 400V AC or 125V DC. It also comes with an LED indicator that determines the trip or fault that occurred, a keypad input, and an LCD that shows a single-line of text but has the capacity to display two lines of text alternately. The contact configuration of the 825-MD motor manager is 1 NO 1 NC and it has an expansion slot that allows you to connect the motor manager to a Modbus, DeviceNet, or remote I/O network.
It has an operating temperature of -5-60 oC and a non-operating temperature of -40-60 oC. Its shock resistance is 30 g and its vibration resistance is 3 g at 10-150 Hz. Enclosure ratings of this motor manager are NEMA Type 4, IP65 and it is flush or surfaces mounted.
Features of this motor manager include phase imbalance, a programmable electronic motor overload protection relay with communication capability, a starting time monitor, jam (high overload), ground (Earth) fault, thermal overload, under load, and limited starts per hour. Unplanned shutdowns are minimized due to the 825-MD’s comprehensive monitoring, protection, warning, and diagnostic capabilities. This motor manager is ideal for low and medium voltage applications.
| Revision Part # | Also known as | |
|---|---|---|
| 825-MD Ser A | 825-MD/A, Series A, Rev A | |
| Don't see your particular revision? Contact us now. | ||
- 825MD
- B25-MD
- B25MD
Allen-Bradley 825-MD Basic Unit with 120-220V ac and DeviceNet Remote I/O Modbus Communication.