Product Model
RM4UB34
Selling Points
- 1High Accuracy Voltage Control: The RM4UB34 offers +/-3% setting accuracy and <=0.06% switching threshold drift.
- 2Versatile Applications: Suitable for overvoltage and undervoltage detection in various industrial settings.
- 3Flexible Connectivity: Supports 2 conductors cable with IEC 60947-1 compliance for easy integration.
- 4Robust Design: Withstands up to 8 A at 250 V AC and has a maximum measuring cycle of 80 ms.
- 5Comprehensive Warranty: Includes an 18-month contractual warranty for added peace of mind.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| 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 | Overvoltage and undervoltage detection<br />Self-powered | 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 60947-1<br />2 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 | 80...220 V AC/DC | Supply voltage limits | 60…300 V AC/DC |
Control threshold undervoltage | 80…120 V | Control threshold overvoltage | 160...220 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<br /><= 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<br /><= 0.5 % within the measuring range |
Hysteresis | 5 % fixed de-energisation threshold | [Ue] rated operational voltage | >= 60 V |
Maximum permissible voltage | <= 300 V L1 and L3 | marking | CE : LVD 73/23/EEC<br />CE : EMC 89/336/EEC |
Overvoltage category | III IEC 60664-1 | Insulation resistance | > 500 MOhm 500 V DC IEC 60664-1 |
[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 60947-5-1<br />2 A 158 °F (70 °C) 24 V DC-13 VDE 0660<br />3 A 158 °F (70 °C) 115 V AC-15 IEC 60947-5-1<br />3 A 158 °F (70 °C) 115 V AC-15 VDE 0660<br />3 A 158 °F (70 °C) 24 V AC-15 IEC 60947-5-1<br />3 A 158 °F (70 °C) 24 V AC-15 VDE 0660<br />3 A 158 °F (70 °C) 250 V AC-15 IEC 60947-5-1<br />3 A 158 °F (70 °C) 250 V AC-15 VDE 0660<br />0.1 A 158 °F (70 °C) 250 V DC-13 IEC 60947-5-1<br />0.1 A 158 °F (70 °C) 250 V DC-13 VDE 0660<br />0.3 A 158 °F (70 °C) 115 V DC-13 IEC 60947-5-1<br />0.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660 | Switching voltage | 250 V AC |
Contacts material | 90/10 silver nickel contacts | Number of cables | 2 |
Height | 3.07 in (78 mm) | Width | 0.9 in (22.5 mm) |
Depth | 3.1 in (80 mm) | Terminals description ISO n°1 | (15-16-18)OC<br />(L1-L3)CO<br />(25-26-28)OC |
Output relay state | Tripped, fault present | 9 mm pitches | 2.5 |
Net Weight | 0.24 lb(US) (0.11 kg) | Standards | EN/IEC 60255-6 |
Product Certifications | GL<br />CSA<br />UL | Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
Ambient Air Temperature for Operation | -4…149 °F (-20…65 °C) | Relative humidity | 15…85 % 3K3 IEC 60721-3-3 |
Vibration resistance | 0.35 mm 10…55 Hz)IEC 60068-2-6 | Shock resistance | 15 gn 11 ms IEC 60068-2-27 |
IP degree of protection | IP20 IEC 60529 terminals)<br />IP50 IEC 60529 casing) | Pollution degree | 3 IEC 60664-1 |
Dielectric test voltage | 2.5 kV | Non-dissipating shock wave | 4.8 kV |
Resistance to electrostatic discharge | 6 kV contact IEC 61000-4-2 level 3<br />8 kV air IEC 61000-4-2 level 3 | Resistance to electromagnetic fields | 9.1 V/m (10 V/m) IEC 61000-4-3 level 3 |
Resistance to fast transients | 2 kV IEC 61000-4-4 level 3 | Protection against electric shocks | 2 kV IEC 61000-4-5 level 3 |
Disturbance radiated/conducted | CISPR 22 - class A<br />CISPR 11 group 1 - class A |
Specifications may be subject to change without notice