Description
Multifunction 3-phase control relays RM22TA, RM22TU, RM22TR, and RM22TG
RM22 Zelio multifunction control relays monitor the following functions on 3-phase supplies
| Function | Rated 3-phase supply voltage (V) |
Measurement range (V) |
Time delay | Output | Reference |
| -Phase sequence -Phase failure |
200…240~ | 200…240~ | Off delay (0.1…30 s) |
2 C/O 8 A | RM22TA31 |
| -Asymmetry | 380…480~ | 380…480~ | Off delay (0.1…30 s) |
2 C/O 8 A | RM22TA33 |
| -Phase sequence -Phase failure |
200…240~ | 200…240~ | On/Off delay (0.1…30 s) |
2 C/O 8 A | RM22TR31 |
| -Under voltage and overvoltage |
380…480~ | 380…480~ | On/Off delay (0.1…30 s) |
2 C/O 8 A | RM22TR33 |
| -Phase sequence -Phase failure |
200…240~ | 200…240~ | No | 2 C/O 8 A | RM22TU21 |
| -Under voltage | 380…480~ | 380…480~ | No | 2 C/O 8 A | RM22TU23 |
| -Phase sequence -Phase failure |
208…480~ | 183…528~ | No | 2 C/O 8 A | RM22TG20 |
1-phase or DC voltage control relays RM22UA and RM22UB
“RM22UA and RM22UB 1-phase or DC voltage control relays monitor the following
functions:”
| Function | Rated 3-phase supply voltage (V) |
Measurement range (V) |
Time delay | Output | Reference |
| -Overvoltage without memory |
24…240 24…240 24…240 |
0.05…5 1…100 15…500 |
No No No |
2 C/O 8 A 2 C/O 8 A 2 C/O 8 A |
RM22UA21MR RM22UA22MR RM22UA23MR |
| -Overvoltage and undervoltage with/ without memory -Overvoltage and undervoltage with memory window |
24…240 | 0.05…5 | Off delay (0.1…30 s) |
2 C/O 8 A | RM22UA31MR |
| 24…240 | 1…100 | Off delay (0.1…30 s) |
2 C/O 8 A | RM22UA32MR | |
| 24…240 | 15…50 | Off delay (0.1…30 s) |
2 C/O 8 A | RM22UA33MT | |
| 380…415 | 5…500 | Off delay (0.1…30 s) |
2 C/O 8 A | RM22UA33MT | |
| -Overvoltage and undervoltage without memory |
110…240 | 80…300 | On/Off delay (0.1…30 s) |
2 C/O 8 A | RM22UB34 |
