Wanlida is the No.1 protection relay provider in China for industrial customers and mine enterprises.
MMPR-100 microcomputer motor protection relay
Product characteristics
Current type protection function; Apply to small motor;Rail-based installation mode; the display panel can be installed with the principal part; alternatively it can be separately installed on the panel of the switch cabinet. With the CT design, it can be installed simpler. Highly bright digital tube display, simple for man-machine interface. Stable operation, without needing maintenance works required by the conventional thermal relay. With 4~20mA analog quantity output and RS485 communication interface, it offers an executive platform for smart low-voltage power distribution network.Protection functions
Start timeout, blocking protection, overload protection, overheat protection, unbalance protection, zero-sequence current protection.
Open-phase protection, tE protection and undercurrent protection.
MMPR-220 microcomputer motor protection controller
MMPR-230 microcomputer motor protection controller
Product characteristics
Perfect current and voltage protection function; Perfect measuring functions and available to offer full electric quantity monitoring; Perfect control functions; with the DCS control system, it can offer various start-stop control on various motors; LCD display, easy to check from the man-machine interface;Stable operation, without needing maintenance works required by the conventional thermal relay. With 4~20mA analog quantity output and RS485 and Profibus(230)communication interface, it offers an executive platform for smart low-voltage power distribution network. The MMPR-200 adopts the separable structure and rail-base installation mode.Protection functions
Start timeout, blocking protection, overload protection, overheat protection, unbalance protection, zero-sequence current protection, open-phase protection,
Phase sequence protection, low-voltage protection, process concatenation, tE protection, underpower protection and PT broken line.
Protection functions list
Function | Start timeout | Blocking protection | Overload protection | Unbalance protection | Zero-sequence current protection | Leakage current protection | Open-phase protection | Phase-sequence protection | Low-voltage protection |
MMPR-100 | √ | √ | √ | √ | √ |
| √ | √ |
|
MMPR-220 | √ | √ | √ | √ | √ | √ | √ | √ | √ |
MMPR-230 | √ | √ | √ | √ | √ | √ | √ | √ | √ |
Function | Overvoltage protection | Process concatenation | tE protection | Time quick-break protection | Underpower protection | Undercurrent protection | PT broken line | Overheat protection |
MMPR-100 | √ | √ |
| √ | ||||
MMPR-220 | √ | √ | √ | √ | √ |
| √ | √ |
MMPR-230 | √ | √ | √ | √ | √ |
| √ | √ |
Low Voltage Motor Protection Relay