The Schneider RM17TA00 is a multifunction control relay from the RM17-TA series, designed for voltage monitoring in electrical systems. It ensures safe operation by detecting overvoltage and undervoltage conditions, making it ideal for use in both industrial and commercial electrical panels.
Key Features
Product Type: Voltage monitoring relay
Model: RM17TA00
Series: RM17-TA
Monitoring Range: 183 to 528 V AC (three-phase)
Control Supply Voltage: Supplied directly from monitored voltage
Output: 1 changeover contact (1 C/O – SPDT)
Mounting: DIN rail
Measurement Type: True RMS
Detection: Overvoltage, undervoltage, phase failure, and phase sequence
Adjustable Thresholds and Delay Times
LED Indicators: Status display for power and fault conditions
IP Rating: IP20 (terminals), IP50 (front face)
Functions
Overvoltage Monitoring Detects and trips when voltage exceeds the upper limit.
Undervoltage Monitoring Detects and trips when voltage drops below the lower limit.
Phase Failure Detection Detects loss of any of the three phases.
Phase Sequence Detection Ensures the correct order of phases (L1-L2-L3).
Adjustable Delay on Trip and Reset Helps to avoid nuisance tripping during brief disturbances.
Applications
Protection of motors and compressors
Monitoring incoming power supply quality
Industrial automation panels
Commercial and residential electrical installations
HVAC systems and elevators
Benefits
Protects equipment from voltage abnormalities
Detects critical faults like phase loss and wrong sequence
Simplifies wiring with built-in power supply from measured voltage
Adjustable 0.1…10 s, +/- 10 % of the full scale value Tt- time delay upon fault
Output contacts
1 C/O
Nominal output current
5 A
Contacts type and composition
1 C/O
[Uc] control circuit voltage
208…480 V
Product specific application
For 3-phase supply
Complementary
[Un] rated nominal voltage
, self-powered
Supply voltage limits
183…528 V AC
Reset time
1500 ms time delay
Maximum switching voltage
250 V AC 250 V DC
Switching capacity in VA
1250 VA
Minimum switching current
10 mA at 5 V DC
Maximum switching current
5 A AC 5 A DC
Control circuit voltage limits
– 12 % + 10 % Un
Power consumption in VA
0…22 VA at 400 V AC 50 Hz
Control circuit frequency
50…60 Hz +/- 10 %
Measurement voltage limits
183…528 V AC
Hysteresis
2 %
delay at power up
650 ms
Maximum measuring cycle
150 ms measurement cycle as true rms value
Voltage range
208…480 V phase to phase
Adjustment of asymmetry threshold
5…15 % of Un selected
Repeat accuracy
0.5 % for input and measurement circuit 3 % for time delay
Measurement error
< 0.05 %/°C with temperature variation < 1 % over the whole range with voltage variation
Phase failure sensitivity
0.7 Un
Response time
< 200 ms (in the event of a fault)
Insulation resistance
> 500 MOhm at 500 V DC conforming to IEC 60255-5 > 500 MOhm at 500 V DC conforming to IEC 60664-1
[Ui] rated insulation voltage
400 V conforming to IEC 60664-1
Supply frequency
50/60 Hz +/- 10 %
Operating position
Any position without derating
Connections – terminals
Screw terminals, 1 x 0.5…1 x 4 mm² (AWG 20…AWG 11) solid without cable end Screw terminals, 2 x 0.5…2 x 2.5 mm² (AWG 20…AWG 14) solid without cable end Screw terminals, 1 x 0.2…1 x 2.5 mm² (AWG 24…AWG 12) flexible with cable end Screw terminals, 2 x 0.2…2 x 1.5 mm² (AWG 24…AWG 16) flexible with cable end
Tightening torque
0.6…1 N.m conforming to IEC 60947-1
Housing material
Self-extinguishing plastic
Local signalling
LED (green) for power ON LED (yellow) for relay ON
Mounting support
35 mm symmetrical DIN rail conforming to IEC 60715
Electrical durability
100000 cycles
Mechanical durability
30000000 cycles
Operating rate
<= 360 operations/hour full load
Utilisation category
AC-12 conforming to IEC 60947-5-1 AC-13 conforming to IEC 60947-5-1 AC-14 conforming to IEC 60947-5-1 AC-15 conforming to IEC 60947-5-1 DC-12 conforming to IEC 60947-5-1 DC-13 conforming to IEC 60947-5-1
Safety reliability data
MTTFd = 502.2 years B10d = 470000
Width
17.5 mm
Net weight
0.13 kg
Control type
Without test button
Environment
Electromagnetic compatibility
Emission standard for industrial environments conforming to IEC 61000-6-4 Emission standard for residential, commercial and light-industrial environments conforming to IEC 61000-6-3 Immunity for industrial environments conforming to IEC 61000-6-2
Standards
IEC 60255-1
Product certifications
GOST CSA GL C-Tick UL
Marking
CE
Directives
89/336/EEC – electromagnetic compatibility 73/23/EEC – low voltage directive
Ambient air temperature for storage
-40…70 °C
Ambient air temperature for operation
-20…50 °C
Relative humidity
95 % at 55 °C conforming to IEC 60068-2-30
Vibration resistance
0.35 mm (f= 5…57.6 Hz) conforming to IEC 60068-2-6 1 gn (f= 57.6…150 Hz) conforming to IEC 60255-21-1
Shock resistance
15 gn for 11 ms conforming to IEC 60255-21-1
IP degree of protection
IP20 (terminals) conforming to IEC 60529 IP30 (casing) conforming to IEC 60529
Pollution degree
3 conforming to IEC 60664-1
Overvoltage category
III conforming to IEC 60664-1
Dielectric test voltage
2 kV, 1 min AC 50 Hz conforming to IEC 60255-5 2 kV, 1 min AC 50 Hz conforming to IEC 60664-1
Non-dissipating shock wave
4 kV conforming to IEC 60255-5 4 kV conforming to IEC 60664-1 4 kV conforming to IEC 61000-4-5
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