
Ask for quote
Main
| Characteristic | Value(s) |
|---|---|
| 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 | 3.3 VA AC |
| Measurement range | 1...5 A current AC 1...5 A current DC 3...15 A current AC 3...15 A current DC 300...1500 mA current AC 300...1500 mA current DC |
| Contacts type and composition | 2 C/O |
Complementary
| Characteristic | Value(s) |
|---|---|
| Maximum switching voltage | 440 V AC |
| operating voltage tolerance | 0.85...1.1 Uc |
| Maximum power consumption in W | 1.2 W DC |
| Output contacts | 2 C/O |
| Maximum measuring cycle | 80 ms |
| Internal input resistance | 0.06 Ohm 0.006 Ohm 0.02 Ohm |
| Permissible continuous overload | 7 A 20 A 2 A |
| Permissible non repetitive overload | 10 A <= 3 s 100 A 15 A |
| Setting accuracy of the switching threshold | +/-5 % |
| Switching threshold drift | <= 0.06 % per degree centigrade depending permissible ambient air temperature <= 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 <= 0.5 % within the supply voltage range (0.85...1.1 Un) |
| Hysteresis | 5â¦30 % adjustable current threshold setting |
| Marking | CE : EMC 89/336/EEC CE : LVD 73/23/EEC |
| Overvoltage category | III conforming to 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 Screw terminals, 2 x 2.5 mm²flexible without cable end |
| Tightening torque | 5.3â¦9.7 lbf.in (0.6â¦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 2 A 24 V DC-13 158 °F (70 °C) VDE 0660 3 A 115 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 115 V AC-15 158 °F (70 °C) VDE 0660 3 A 24 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 24 V AC-15 158 °F (70 °C) VDE 0660 3 A 250 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 250 V AC-15 158 °F (70 °C) VDE 0660 0.1 A 250 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991 0.1 A 250 V DC-13 158 °F (70 °C) VDE 0660 0.3 A 115 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991 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) |
| Depth | 3.1 in (80 mm) |
| Terminals description ISO n°1 | (C-B1-B2-B3)CO (25-26-28)OC (A1-A2)CO (15-16-18)OC |
| Output relay state | Tripped if V measured > V set Tripped if A measured > A set |
| 9 mm pitches | 5 |
| Product Weight | 0.450 lb(US) (0.204 kg) |
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
Regardless of where the product is shipping from, PLC Direct covers all duties for US-based shipping destinations. For non-US-based shipping destinations, customers are responsible for duties as appropriate.
PLC Direct's focus is on balancing price with lead time. Some but not all products can be expedited. If you have questions about delivery ETAs, please contact our team.

Ask for quote

"Fast service for obsolete parts"
Increasingly PLC/ HMI control platforms are becoming obsolete and parts are no longer supported, however PLC Direct had the HMI we needed and fast shipping for our system to get back online!
Buyer at GE Health

"Helping us move projects forward"
With supply chain issues increasingly affecting our business, PLC Direct has been there for us to supply the PLC products we need, when we need it. If they don't have it readily available, they find it and provide it quickly and reliably. This has helped us move forward with several projects that would have otherwise taken us many, many months to complete.
Buyer at E-Merge Systems – A Rockwell Integrator










