The RM4UB35 is a self-powered single-phase network control relay designed for industrial applications, featuring overvoltage and undervoltage detection.
Product ModelRM4UB35
Product ID33741
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeaturePrecision control for industrial applications with self-powered operation.
2
FeatureQuick detection of overvoltage and undervoltage conditions (0.1...10 s).
3
FeatureIdeal for enhancing control systems in various industrial settings.
4
FeatureReliable performance in demanding environments.
5
FeatureEasy integration into existing control systems with its robust design.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Range of Product
Zelio Control
Product or Component Type
Industrial measurement and control relays
Relay Type
Voltage control relay
Relay name
RM4U
Relay monitored parameters
Self-poweredOvervoltage and undervoltage detection
Time delay range
0.1...10 s adjustable
Minimum switching current
10 mA 12 V
Maximum switching current
8 A 250 V AC
Electrical connection
2 conductors cable 0.002 in² (1.5 mm²) flexible with cable end IEC 60947-12 conductors cable 0.004 in² (2.5 mm²) flexible without cable end IEC 60947-1
Contacts type and composition
2 C/O
Poles description
1P
Maximum switching voltage
440 V AC
[Us] rated supply voltage
160...300 V AC
Supply voltage limits
160...300 V AC
Control threshold undervoltage
160...220 V 50/60 Hz
Control threshold overvoltage
220...300 V
Output contacts
2 C/O
Maximum measuring cycle
80 ms
Setting accuracy of the switching threshold
+/-3 %
Switching threshold drift
<= 0.06 % per degree centigrade depending permissible ambient air temperature<= 0.5 % within the measuring range
Setting accuracy of time delay
10 P
Time delay drift
<= 0.07 % per degree centigrade depending on the rated operational temperature<= 0.5 % within the measuring range
Hysteresis
5 % fixed de-energisation threshold
[Ue] rated operational voltage
>= 160 V
Maximum permissible voltage
<= 300 V L1 and L3
Marking
CE : LVD 73/23/EECCE : EMC 89/336/EEC
Overvoltage category
III IEC 60664-1
Insulation resistance
> 500 MOhm 500 V DC IEC 60255-5
[Ui] rated insulation voltage
500 V IEC
Control circuit voltage limits
0.85...1.1 Uc
Supply frequency
50/60 Hz +/- 5 %
Supply disconnection value
> 0.1 Uc
Operating position
Any position without derating
Tightening torque
5.3...9.7 lbf.in (0.6...1.1 N.m)
Mechanical durability
30000000 cycles
[Ith] conventional free air thermal current
8 A
[Ie] rated operational current
2 A 158 °F (70 °C) 24 V DC-13 IEC 60947-5-12 A 158 °F (70 °C) 24 V DC-13 VDE 06603 A 158 °F (70 °C) 115 V AC-15 IEC 60947-5-13 A 158 °F (70 °C) 115 V AC-15 VDE 06603 A 158 °F (70 °C) 24 V AC-15 IEC 60947-5-13 A 158 °F (70 °C) 24 V AC-15 VDE 06603 A 158 °F (70 °C) 250 V AC-15 IEC 60947-5-13 A 158 °F (70 °C) 250 V AC-15 VDE 06600.1 A 158 °F (70 °C) 250 V DC-13 VDE 06600.3 A 158 °F (70 °C) 115 V DC-13 IEC 60947-5-10.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660
