Product Model
RM4UA01F
Key Features
- 1Accurate Voltage Measurement: Measures voltage accurately within the range of 0.05-5V AC.
- 2Wide Operating Voltage: Operates effectively between 110-130V AC.
- 3High Reliability: Designed for industrial use with a maximum switching voltage of 440V AC.
- 4Flexible Configuration: Features adjustable delay and voltage threshold settings (5-30%).
- 5Energy Efficiency: Consumes 1.9-3.3VA AC, making it energy-efficient for your applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Range of Product | Harmony Relay | Relay Type | Voltage measurement relay |
| Product or Component Type | Industrial measurement and control relays | Relay name | RM4U |
| Relay monitored parameters | Overvoltage or undervoltage detection | time delay | Without |
| Contacts type and composition | 1 C/O | Maximum switching voltage | 440 V AC |
| operating voltage tolerance | 0.85...1.1 Uc | Power consumption in VA | 1.9…3.3 VA AC |
| Output contacts | 1 C/O | Hysteresis | 5…30 % adjustable voltage threshold setting |
| Internal input resistance | 71000 Ohm<br />6600 Ohm<br />43000 Ohm | Permissible continuous overload | 80 V<br />20 V<br />60 V |
| Permissible non repetitive overload | 100 A <= 1 s<br />25 A <= 1 s<br />80 A <= 1 s | Switching threshold drift | <= 0.06 % per degree centigrade depending permissible ambient air temperature<br /><= 0.5 % within the supply voltage range (0.85...1.1 Un) |
| Setting accuracy of time delay | 10 P | Quality labels | CE |
| Setting accuracy of the switching threshold | +/-5 % | Operating position | Any position without derating |
| Overvoltage category | III IEC 60664-1 | [Ui] rated insulation voltage | 500 V IEC |
| Supply disconnection value | > 0.1 Uc | Connections - terminals | Screw terminals, 2 x 1.5 mm²flexible with cable end<br />Screw terminals, 2 x 2.5 mm²flexible without cable end |
| [Ie] rated operational current | 2 A 158 °F (70 °C) 24 V DC-13 IEC 60947-5-1/1991<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 60947-5-1/1991<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 60947-5-1/1991<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 60947-5-1/1991<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 60947-5-1/1991<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 60947-5-1/1991<br />0.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660 | 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 |
| Switching capacity in mA | 10 mA 12 V | Contacts material | 90/10 silver nickel contacts |
| Number of cables | 2 | Width | 0.9 in (22.5 mm) |
| Height | 3.07 in (78 mm) | Depth | 3.1 in (80 mm) |
| Terminals description ISO n°1 | (C-B1-B2-B3)CO<br />(15-16-18)OC<br />(A1-A2)CO | Output relay state | Tripped if A measured > A set |
| 9 mm pitches | 2.5 | Net Weight | 0.370 lb(US) (0.168 kg) |
| Electromagnetic compatibility | Electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2<br />Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2 | Ambient air temperature for operation | -4…149 °F (-20…65 °C) |
| Vibration resistance | 0.35 ms 10…55 Hz)IEC 60068-2-6 | Shock resistance | 15 gn 11 ms IEC 60068-2-27 |
| Standards | EN/IEC 60255-6 | Product Certifications | GL<br />CSA<br />UL |
| Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) | Relative humidity | 15…85 % 3K3 IEC 60721-3-3 |
| IP degree of protection | IP20 IEC 60529 terminals)<br />IP50 IEC 60529 casing) | Pollution degree | 3 IEC 60664-1 |
| Directives | 89/336/EEC - electromagnetic compatibility<br />73/23/EEC - low voltage directive | 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 level 3 IEC 61000-4-5 | Disturbance radiated/conducted | CISPR 22 - class A<br />CISPR 11 group 1 - class A |
| Dielectric test voltage | 2.5 kV | Non-dissipating shock wave | 4.8 kV |
Specifications may be subject to change without notice