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Specification & Description
| Specification | Description |
|---|---|
| Part Number | RM4JA32M |
| Manufacturer | Schneider |
| Product Type | Current Control Relay |
| Supply Voltage | 220 to 240 V ac |
| Rated Operational Current | 8 A |
| Mounting Type | DIN Rail Mount |
| Dimensions | 45 x 78 x 80 mm |
| Measurement Range | 0.3 to 15 A current DC/AC |
| Contacts Type and Composition | 2 C/O |
| Operating Voltage Tolerance | 0.85 to 1.1 Uc |
| Measuring Cycle | ≤ 80 ms |
| Internal Input Resistance | 0.006 Ohm, 0.02 Ohm, 0.06 Ohm |
| Permissible Continuous Overload | 2 A, 20 A, 7 A |
| Permissible Non-Repetitive Overload | 15 A, 100 A, 10 A for ≤ 3 s |
| Setting Accuracy of Switching Threshold | +/-5 % |
| Time Delay | Adjustable 0.05 to 30 s |
| Hysteresis | 5 to 30 % adjustable of current threshold setting |
| Rated Insulation Voltage | 500 V conforming to IEC |
| Operating Position | Any position without derating |
| Connections - Terminals | Screw terminals 2 x 2.5 mm², flexible cable without cable end; Screw terminals 2 x 1.5 mm², flexible cable with cable end |
| Mechanical Durability | 30,000,000 cycles |
| Conventional Free Air Thermal Current | 8 A |
| Ambient Air Temperature for Operation | -20 to 65 °C |
| Ambient Air Temperature for Storage | -40 to 85 °C |
| Relative Humidity | 15 to 85 % conforming to IEC 60721-3-3 |
| IP Degree of Protection | IP50 (casing), IP20 (terminals) |
| Pollution Degree | 3 conforming to IEC 60664-1 |
| Resistance to Electrostatic Discharge | 8 kV air, 6 kV contact conforming to IEC 61000-4-2 level 3 |
The Schneider RM4JA32M is a sophisticated current control relay designed for precise monitoring and protection in a variety of industrial applications. This relay is engineered to detect overcurrent or undercurrent conditions, ensuring the safe and efficient operation of electrical systems. With an adjustable time delay ranging from 0.05 to 30 seconds, it offers flexibility to cater to different system requirements.
The RM4JA32M operates with a rated supply voltage of 220 to 240 V ac, compatible with standard industrial power supplies in the UK and Europe. It features a measurement range that can accommodate currents from 300 mA to 15 A, making it versatile for monitoring a wide array of electrical loads.
This current control relay is designed for DIN rail mounting, allowing for easy integration into existing electrical panels and systems. Its compact dimensions of 45 x 78 x 80 mm ensure it does not occupy excessive space, preserving valuable real estate within control cabinets.
The relay's contacts are composed of 2 C/O (changeover) contacts, providing reliable switching capabilities. It has been constructed to withstand continuous and non-repetitive overloads, ensuring durability and a long service life in demanding industrial environments.
With its robust design and precise current monitoring capabilities, the Schneider RM4JA32M is an essential component for industrial control systems that require accurate current measurement and control.
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Frequently Asked Questions
What is the purpose of a current control relay?
A current control relay, such as the Schneider RM4JA32M, is designed to monitor and control the current flowing through a circuit. It can protect equipment by detecting overcurrent or undercurrent conditions and triggering a response, such as shutting down the system or activating an alarm.
How can I mount this current control relay?
The relay is suitable for DIN rail mounting, which allows for easy installation and removal within electrical enclosures and panels.
What are the dimensions of this relay?
The dimensions of the relay are 45 x 78 x 80 mm, making it compact and suitable for use in space-constrained environments.
What is the supply voltage range for this relay?
The relay operates within a supply voltage range of 220 to 240 V ac, which is typical for industrial and commercial applications in the UK and Europe.
Can this relay handle inductive loads?
Yes, the relay can handle inductive loads, but it's important to apply a reduction factor to the electrical durability values when working with such loads.
What is the maximum current this relay can measure?
The relay can measure currents ranging from 0.3 A to 15 A, making it versatile for various applications that require current monitoring.
Is there a time delay feature on this relay?
Yes, the relay includes an adjustable time delay feature ranging from 0.05 to 30 seconds, allowing for customisation based on the specific needs of the application.
How do I connect this relay to my circuit?
The relay features screw terminals for secure and reliable connections. It's important to refer to the connection diagrams provided in the product documentation for proper installation.
What type of contacts does this relay have?
The relay is equipped with 2 changeover (C/O) contacts, which can be used to switch between two circuits, either connecting or disconnecting the load from the power source.
How can I adjust the current threshold setting?
The current threshold setting on the relay is adjustable, allowing you to set the specific current levels at which the relay will trip. This is typically done via onboard potentiometers or dials.
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