Product Model
RM4JA32M
Selling Points
- 1Measures current with +/-5% setting accuracy and +/-0.06% drift per degree centigrade.
- 2Allows for adjustable time delay from 0.05 to 30 seconds for customizable response.
- 3Detects overcurrent or undercurrent with adjustable current threshold settings.
- 4Designed for industrial use with a maximum power consumption of 3.4 VA AC.
- 5Compact dimensions suitable for rail mounting with screw fixing, ideal for space-constrained applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Range of Product | Harmony Relay | Relay Type | Current measurement relay |
Product or Component Type | Industrial measurement and control relays | Relay name | RM4J |
Relay monitored parameters | Overcurrent or undercurrent detection | time delay | Adjustable 0.05...30 s |
Maximum power consumption in VA | 3.4 VA AC | Measurement range | 1...5 A current AC<br />1...5 A current DC<br />3...15 A current AC<br />3...15 A current DC<br />300...1500 mA current AC<br />300...1500 mA current DC |
Contacts type and composition | 2 C/O | Maximum switching voltage | 440 V AC |
operating voltage tolerance | 0.85...1.1 Uc | Output contacts | 2 C/O |
Maximum measuring cycle | 80 ms | Internal input resistance | 0.02 Ohm<br />0.06 Ohm<br />0.006 Ohm |
Permissible continuous overload | 7 A<br />20 A<br />2 A | Permissible non repetitive overload | 10 A <= 3 s<br />100 A<br />15 A |
Setting accuracy of the switching threshold | +/-5 % | 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 | Time delay drift | <= 0.07 % per degree centigrade depending on temperature<br /><= 0.5 % within the supply voltage range (0.85...1.1 Un) |
Hysteresis | 5…30 % adjustable current threshold setting | marking | CE : LVD 73/23/EEC<br />CE : EMC 89/336/EEC |
Overvoltage category | III IEC 60664-1 | [Ui] rated insulation voltage | 500 V IEC |
Supply disconnection value | > 0.1 Uc | Operating position | Any position without derating |
Connections - terminals | Screw terminals, 2 x 1.5 mm²flexible with cable end<br />Screw terminals, 2 x 2.5 mm²flexible without cable end | 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 24 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991<br />2 A 24 V DC-13 158 °F (70 °C) VDE 0660<br />3 A 115 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991<br />3 A 115 V AC-15 158 °F (70 °C) VDE 0660<br />3 A 24 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991<br />3 A 24 V AC-15 158 °F (70 °C) VDE 0660<br />3 A 250 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991<br />3 A 250 V AC-15 158 °F (70 °C) VDE 0660<br />0.1 A 250 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991<br />0.1 A 250 V DC-13 158 °F (70 °C) VDE 0660<br />0.3 A 115 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991<br />0.3 A 115 V DC-13 158 °F (70 °C) VDE 0660 | Switching capacity in mA | 10 mA 12 V |
Switching voltage | 250 V AC | Contacts material | 90/10 silver nickel contacts |
Number of cables | 2 | Width | 1.8 in (45 mm) |
Height | 3.07 in (78 mm) | Depth | 3.1 in (80 mm) |
Terminals description ISO n°1 | (15-16-18)OC<br />(C-B1-B2-B3)CO<br />(25-26-28)OC<br />(A1-A2)CO | Output relay state | Tripped if A measured > A set<br />Tripped if V measured > V set |
9 mm pitches | 5 | Net Weight | 0.450 lb(US) (0.204 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 | Standards | EN/IEC 60255-6 |
Product Certifications | UL<br />GL<br />CSA | Ambient Air Temperature for Storage | -40…185 °F (-40…85 °C) |
Ambient air temperature for operation | -4…149 °F (-20…65 °C) | Environmental characteristic | 3K3 |
Relative humidity | 15…85 % IEC 60721-3-3 | Shock resistance | 15 gn 11 ms IEC 60255-21-1 |
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 level 3 IEC 61000-4-5 |
Disturbance radiated/conducted | CISPR 22 - class A<br />CISPR 11 group 1 - class A |
Specifications may be subject to change without notice