
Zelio control
RM17, RM22, RM35, REG range

Zelio Control Monitoring and Control Relays
Zelio Control relays monitor and detect abnormal operating conditions concerning phase,current,voltage,frequency,speed,or temperature. The relays inform users of abnormal conditions, and allow them to initiate the necessary corrective actions before serious and costly breakdown can occur.
Featurres
Zelio measurement and control relays can monitor power supplies (phases, voltage, current, frequency) to protect motors and other equipment or control physical values such as level, speed and temperature.
- Phase control relay
- Voltage & current control relays
- Frequency control relay
- Level control relay
- Pump control relay
- Speed control relay
- Temperature control relay for lift application
- Temperature control relays
Benefits
- Compact modular sizes: 17.5mm/0.69 in., 22.5 mm/0.88 in., 35 mm/1.38in.
- Adapted for industrial and building control panels
- True RMS measurement that minimizes the possibility of unexpected trips from highly polluted networks
- Diagnostic button to check the downstream circuit immediately and reduce commissioning and troubleshooting time *(1)
- IP50 lead-sealable settings protection cover helps prevent dust and unintended human intervention
- Status indication by LEDs, additional dial pointer LED for easy setup in dark conditions *(1), and power "On" status indication when relay is ready to perform
- Optimization of power supplies >Worldwide certifications
*(1) Available in RM35JA32MR,RM35JA32MT, and all RM22 references
Applications
- Hoisting: construction cranes, harbor cranes
- Packaging: motor voltage, current overload
- Lifts: construction lifts, passenger lifts, escalators
- Textile: motor voltage, current overload
- Water: liquid level on water tank at water and waste water recycling plant
Index
Zelio control
1. RM17 current protection relays
1.1 Single phase (Back to top)
Application | Single phase, 1 C/O SPDT, 5A | |||||
---|---|---|---|---|---|---|
Function | - Undervoltage with or without memory
- Overvoltage with or without memory |
- Overvoltage and undervoltage in window mode | - Integrated current transformer
- Overcurrent without memory |
|||
voltage |
9-15Vdc | 65-260Vac/Vdc | 20-80Vac/Vdc | 20-80Vac/Vdc | 65-260Vac/Vdc | 2-20A |
Self-powered | Self-powered | Self-powered | Self-powered | Self-powered | 24-240Vac/Vdc | |
Time delay | 0.1-10s | 0.1-10s | 0.1-10s | 0.1-10s | 0.1-10s | - |
Product |
1.2 3-phase (Back to top)
Application | 3-Phase, 1 C/O SPDT, 5A | ||||||
---|---|---|---|---|---|---|---|
Function |
- Phase loss - Asymmetry |
- Phase loss - Asymmetry |
- Phase loss |
- Phase loss - Undervoltage |
- Overvoltage and Undervoltage between phases and neutral |
||
voltage |
208-480Vac | 208-480Vac | 208-480Vac | 208-440Vac | 208-480Vac | 208-480Vac | 208-480Vac |
Supply voltage | |||||||
Time delay | 0.1-10s | 0.1-10s | - | - | - | 0.1-10s | 0.3-30s |
Product |
2. RM22 current protection relays
2.1 Single phase (Back to top)
Application | Single phase, 2 C/O DPDT, 8A | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Functions | - Overvoltage (without memory) | - Overvoltage (with/without memory)
- Undervoltage (with/without memory) - Overvoltage or undervoltage in window mode (with/without memory) |
in window mode |
|
|
||||||
voltage |
0.05-5Vac/Vdc | 1-100Vac/Vdc | 0.05-5Vac/Vdc | 1-100Vac/Vdc | 15-500Vac | 80-300Vac/Vdc | 4mA-1A | 4mA-1A | |||
Supply voltage | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 380-415Vac | 110-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | |
Time delay | - | - | - | 0.1-30s (OFF-delay) |
0.1-30s (OFF-delay) |
0.1-30s (OFF-delay) |
0.1-30s (OFF-delay) |
0.1-30s | - | 0.1-30 | |
Product |
2.2 3-phase (Back to top)
Application | 3-phase, 2 C/O DPDT, 8A | ||||||
---|---|---|---|---|---|---|---|
Functions |
- Phase loss - Asymmetry |
- Phase loss |
- Phase sequence
- Phase loss |
- Phase sequence
- Phase loss - Undervoltage |
|||
voltage |
200-240Vac | 380-480Vac | 183-528Vac | 200-240Vac | 380-480Vac | 200-240Vac | 380-480Vac |
Supply voltage | Self-powered | Self-powered | Self-powered | Self-powered | Self-powered | Self-powered | Self-powered |
Time delay | 0.1-30s | 0.1-30s | - | 0.1-30s | 0.1-30s | - | - |
Product |
2.3 Level control (Back to top)
Application | Level control, 8A | |||
---|---|---|---|---|
Functions | - By resistive probes
- Level 1/ Level 2 - Fill operation - Empty operation - Standard sensitivity |
- By resistive probes
- Level 1/ Level 2 - Fill operation - Empty operation - Standard sensitivity - Low sensitivity - High sensitivity |
||
voltage |
5k-100kΩ | 5k-100kΩ | 250k-1MΩ | 250k-1MΩ |
Supply voltage | 24-240Vac/Vdc | 380-415Vac | 24-240Vac/Vdc | 380-415Vac |
Type of output | 1 C/O SPDT | 1 C/O SPDT | 2 C/O DPDT | 2 C/O DPDT |
Time delay | - | - | 0.1-30s | 0.1-30s |
Product |
3. RM35 current protection relays
3.1 Single phase (Back to top)
Application | Single phase, 2 C/O DPDT, 5A | Single phase, 2 C/O DPDT, 8A | |||||
---|---|---|---|---|---|---|---|
Functions | - Overvoltage or Undervoltage with/without memory | - No integrated current transformer
- Overcurrent with/without memory - Undercurrent with/without memory |
|
||||
voltage |
0.05-5Vac/Vdc | 1-100Vac/Vdc | 15-600Vac/Vdc | 2-500mA | 0.15-15A | 150mA-15A | 150mA-15A |
Supply voltage | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 380-415Vdc |
Time delay | 0.3-30s | 0.3-30s | 0.3-30s | Inhibition time delay upon startup 1-20s | 0.3-30s | 0.1-30s | 0.1-30s |
Product |
3.2 3-phase (Back to top)
Application | 3-phase, 2 C/O DPDT, 5A | 1 C/O + 1 C/O 1 per threshold | |||
---|---|---|---|---|---|
Functions |
- Phase loss - Asymmetry |
- Phase loss - Motor temperature |
- Phase loss - Selection (with or without memory) "Test/Reset Button" |
|
and Undervoltage between phases and neutral - Absence of neutral/ Phase |
220-480Vac | 208-480Vac | 208-480Vac | 220-480Vac | 120-277Vac | |
Supply voltage | Self-powered | 24-240Vac/Vdc | 24-240Vac/Vdc | Self-powered | Self-powered |
Time delay | 0.1-10s | - | - | 0.3-30s | 0.3-30s |
Product |
3.3 Control (Back to top)
Application | Level control | Pump control | Frequency control | Speed control | Temperature control for elevator machine rooms and 3-phase supplies | |||
---|---|---|---|---|---|---|---|---|
Functions |
- Level 1/ Level 2 - Fill operation - Empty operation - Low sensitivity - High sensitivity |
- Empty or fill - Input for discrete sensor AON: Contact/ PNP/NPN |
3phase and 1phase
|
(with/without memory) |
(with/without memory) |
|
- Phase loss and phase sequence |
|
0.25-1MOhm | - | 1-10A | Mains supply: 40-60Hz (50Hz) / 50-70Hz (60Hz) | Time controlled between pulses: 0.05-10min | Overtemperature: 34-46℃ Undertemperature: -1-11℃ |
|||
supply voltage | 24-240Vac/Vdc | 24-240Vac/Vdc | 3-phase: 208-480Vac single phase: 230Vac |
120-277Vac | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc | 24-240Vac/Vdc |
type of output | 2 C/O DPDT | 1 C/O SPDT | 1 C/O SPDT | 2 C/O DPDT | 1 C/O SPDT | 1 C/O SPDT | 2 C/O DPDT | 2 C/O DPDT |
Rated current | 5A | 5A | 5A | 5A | 5A | 5A | 5A | 5A |
Time delay | 0.1-5s | 0.1-5s | 0.1-10s | 0.1-10s | 0.6-60s | 0.1-10s | 0.1-10s | 0.1-10s |
Product |
4 Accessories (Back to top)
Accessories | |||||
---|---|---|---|---|---|
Product | |||||
Description | probes | probes | |||
For use with |
|
|
probes | probes | Electrode |
5. More information about relays operation (Back to top)




Relays operation table
RM17TG⬤0 | RM22TA | RM22TU | RM22TR | RM22TG | RM17TT00 | RM17TU00 | RM17TE00 | RM35TF | RM35UB330 | RM35UB3N30 | RM17UB310 | RM35TM50MW | RM35TM250MW | RM17 UAS14/UAS15/UAS16 | RM17 UBE15/UBE16 | RM35 UA11MW/UA12MW/UA13MW | RM22 UA2⬤MR/UA3⬤MR/UA33MT | RM22 UA3⬤MR/UA33MT/UB34 | RM17JC00MW | RM22JA⬤1MR/RM35JA32M⬤ | RM35 JA31MW/JA32MW | RM22LA and RM22LG | RM35LM33MW | RM35LV14MW | RM35BA10 | RM35HZ21FM | RM35S0MW | RM35ATL0MW | RM35ATR5MW | RM35ATW5MW | ||||||||||||||||||||||||||||||||||||||||||||||||||
Function | Phase control | Phase + Asymmetry | Phase + Undervoltage | Phase + Undervoltage/overvoltage | Phase control | Phase + Voltage regeneration | Phase + Asymmetry | Phase + Undervoltage | Phase + Asymmetry + Undervoltage/overvoltage | Phase + Overvoltage + Undervoltage in window mode | Overvoltage/undervoltage control | Overvoltage/undervoltage + absence of neutral control | Overvoltage/undervoltage control | 3-phase supply control | Temperature control | Motor temperature control via PTC probe with memory | Use of "Test/Reset" button | Undervoltage/Overvoltage without memory | Undervoltage/Overvoltage with memory | Overvoltage + undervoltage control in window mode | Overvoltage without memory | Undervoltage without memory | Overvoltage/undervoltage with memory | Overvoltage without memory | Undervoltage without memory | Overvoltage/undervoltage with memory | Overvoltage + undervoltage control relay in window mode | Overcurrent detection | Overcurrent/Undercurrent without memory | Overcurrent/Undercurrent with memory | Overcurrent and undercurrent control in window mode | Overcurrent without memory | Undercurrent without memory | Overcurrent/Undercurrent with memory | Control of two levels, empty and fill function | Control of one level, empty function | Control of one level, fill function | Control of two levels, empty and fill function | Control of one level, empty function | Control of one level, fill function | Control of two levels | Control of one level, empty function | Control of one level, fill function | Single control mode | Double control mode | 1-phase or 3-phase supply control mode | Over-frequency and under-frequency without memory | Underspeed control without memory | Underspeed control with memory | Underspeed control with inhibition by S2 | Overspeed control without memory | Overspeed control with memory | Overspeed control with inhibition by S2 | Temperature control by PT100 probe | Temperature control by PT100 probe | Temperature and phase control | ||||||||||||||||||||||||
Description | Sequence of phases L1, L2, and L3
Phase loss |
Sequence of phases L1, L2, and L3
Phase loss Asymmetry Asy |
Sequence of phases L1, L2, and L3
Phase loss |
Undervoltage control | Sequence of phases L1, L2, and L3
Phase loss |
Overvoltage and undervoltage (Off-delay) | Sequence of phases L1, L2, and L3
Phase loss |
Sequence of phases L1, L2, and L3
Phase loss |
Sequence of phases L1, L2, and L3
Phase loss Asymmetry Asy |
Sequence of phases L1, L2, and L3
Phase loss |
Undervoltage control U | Sequence of phases L1, L2, and L3
Phase loss Asymmetry Asy |
Control of overvoltage and undervoltage in window mode U> / U | Sequence of phases L1, L2, and L3
Phase loss Asymmetry Asy |
Control of overvoltage and undervoltage in window mode | Phase loss | Overvoltage and undervoltage | Phase loss | Overvoltage and undervoltage | Phase loss | Overvoltage and undervoltage | Sequence of phases L1, L2, and L3
Phase loss |
Motor temperature control via PTC probe | Memory | No Memory | Memory | Undervoltage control | Overvoltage control U>, No Memory | Undervoltage control U | Overvoltage control U>, Memory | undervoltage control | Overvoltage control > U, without memory | Undervoltage control | Undervoltage control | Undervoltage control | Overvoltage control > U, without memory | Undervoltage control | Overvoltage control > U, with memory | Undervoltage control | Overvoltage and undervoltage control in window mode | Overcurrent detection > I | Overcurrent detection >I , without memory | Undercurrent detection | Overcurrent >I, with memory | Undercurrent | Overcurrent and undercurrent control in window mode | Overcurrent detection >I, without memory | Undercurrent detection | Overcurrent detection >I, with memory | Undercurrent detection | Fill/Empty function (2 levels) | Empty function T on | Empty function T off | Fill function T on | Fill function T off | Fill/Empty function | Empty function T on | Empty function T off | Fill function T on | Fill function T off | Fill/Empty function | Empty function T on | Empty function T off | Empty function T on | Empty function T off | Single control mode (3-ph/1-ph) | Double control mode (3-ph/1-ph) | Overcurrent detection > I | Undercurrent detection | Over-frequency and under-frequency control, without memory | Over-frequency and under-frequency with memory | Underspeed control, without memory | Underspeed control, with memory | With inhibition by S2 Inhib./S2 | Overspeed control, without memory | Overspeed control, with memory | With inhibition by S2. Inhib./S2 | Temperature control by PT100 probe | Temperature control by PT100 probe | Temperature control by PT100 probe
Sequence of phases L1, L2, and L3 Phase loss |
Operating principle | ![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Remark | Tr: response time on detection of a fault | Tt: time delay after crossing of the threshold (adjustable on the front panel) | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold (adjustable on the front panel) | Tr: response time on appearance of a fault | - | Tt: time delay after crossing of the threshold (adjustable on front panel) | Tt: time delay after crossing of the threshold (adjustable on front panel) | Tt: time delay after crossing of the threshold (adjustable on front panel) | Tt: time delay after crossing of the threshold (adjustable on front panel) | Tt 1: overvoltage threshold delay (adjustable on front panel)
Tt 2: undervoltage threshold delay (adjustable on front panel) |
Tt 1: overvoltage threshold delay (adjustable on front panel)
Tt 2: undervoltage threshold delay (adjustable on front panel) |
Tt: overvoltage and undervoltage threshold delay (adjustable on front panel) | - | - | - | - | - | - | - | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold (adjustable on front panel) | - | Tt: time delay after crossing of the threshold (adjustable on front panel) | - | - | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold | - | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold | Tt: time delay after crossing of the threshold | - | - | Ti: starting inhibition time (adjustable on front panel) Tt: time delay after crossing of the threshold (adjustable on front panel) | - | - | - | Tt: time delay after crossing of the threshold | When two levels are being controlled, the anti-wave time delay function is not active. | - | - | - | - | When two levels are being controlled, the anti-wave time delay function is not active. | - | - | - | - | Ti: time delay to inhibit fault monitoring on pump starting (overcurrent and undercurrent,
setting on front panel)
Tt: time delay on occurrence of a fault (overcurrent or undercurrent, setting on front panel) I. Def.: presence of a current fault (overcurrent or undercurrent) |
Ti: time delay to inhibit fault monitoring on pump starting (overcurrent and undercurrent,
setting on front panel)
Tt: time delay on occurrence of a fault (overcurrent or undercurrent, setting on front panel) I. Def.: presence of a current fault (overcurrent or undercurrent) |
Ti: time delay to inhibit fault monitoring on pump starting (overcurrent and undercurrent, setting on front panel)
Tt: time delay on occurrence of a fault (overcurrent or undercurrent, setting on front panel) |
Tt: time delay after crossing of the threshold (adjustable on front panel) | - | - | - | - | - | - | - | - | - |