Schneider RXM4LB2BD Power Relay
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Schneider RXM4LB2BD Power Relay
1. Product Overview
The Schneider Electric RXM4LB2BD is a 14-pin miniature plug-in electromechanical power relay belonging to the Harmony Zelio Relay RXM series. Configured with 4 changeover contacts (4CO, 4NO + 4NC) and a 24 V DC coil with an integrated LED status indicator, it is engineered for low-to-medium power control applications requiring multiple circuit switching.
Rated at 3 A per contact for resistive loads (AC-1/DC-1) up to 250 V AC / 28 V DC, this relay serves as a critical interface between low-power control signals (e.g., from PLCs or sensors) and higher-power industrial loads. It features a compact, DIN-rail mountable design (via compatible sockets) and complies with IEC 61810-1, UL 508, and CSA C22.2 No. 14 standards, making it ideal for industrial automation panels, machinery control, signal distribution, and building management systems.
2. Main Functions
表格
| Function | Detailed Description |
|---|---|
| Multi-Circuit Switching | 4 independent changeover contacts (4NO + 4NC) enable simultaneous control of up to 4 separate load circuits with a single control signal, maximizing I/O efficiency. |
| Signal Isolation & Amplification | Provides galvanic isolation between the 24 V DC control side and the load side, protecting sensitive controllers from voltage transients while amplifying signals to drive actuators. |
| Visual Status Indication | A built-in LED illuminates when the coil is energized, offering instant visual confirmation of the relay’s operating state for rapid troubleshooting. |
| Plug-and-Play Maintenance | Standard 14-pin plug-in design allows tool-free replacement and hot-swapping on compatible sockets, minimizing equipment downtime during servicing. |
| Wide Load Compatibility | Capable of switching resistive, inductive, and small capacitive loads up to 3 A, suitable for solenoids, small motors, lighting, and indicator circuits. |
| Mechanical Test Capability | Compatible with sockets featuring a test button, enabling manual verification of contact operation without energizing the coil. |
3. Technical Features
3.1 Core Electrical Ratings
- Contact Configuration: 4CO (4NO + 4NC), 14-pin layout.
- Coil Voltage (Uc): 24 V DC (nominal).
- Coil Power Consumption: Approx. 1.2 W.
- Contact Rated Current (Ie): 3 A (AC-1 / DC-1); 1 A (AC-3, 400 V AC).
- Contact Rated Voltage: 250 V AC, 28 V DC.
- Insulation Voltage (Ui): 500 V AC.
- Impulse Withstand Voltage (Uimp): 4 kV (1.2/50 μs).
- Contact Material: Silver-nickel (Ag/Ni) alloy for enhanced conductivity and arc resistance.
- Operating Time: ≤ 20 ms (pull-in); ≤ 20 ms (drop-out).
3.2 Mechanical & Environmental Performance
- Mechanical Life: 10,000,000 operations (no load).
- Electrical Life: 100,000 operations (at rated resistive load).
- Operating Temperature Range: -40°C to +55°C.
- Storage Temperature Range: -40°C to +85°C.
- Protection Class: IP40 (front face), protecting against solid objects ≥ 1.0 mm.
- Pollution Degree: 3 (suitable for typical industrial environments).
- Shock Resistance: 30 Gn (non-operating); 10 Gn (operating).
- Vibration Resistance: 5 Gn (10–2000 Hz), ensuring stability in vibrating machinery.
3.3 Installation & Compatibility
- Mounting: 35 mm standard DIN rail via compatible 14-pin sockets (e.g., RXZE2S114M).
- Termination: 14-pin plug-in connection for secure and fast wiring.
- Accessory Support: Works with coil surge suppressors (diodes/varistors) and mechanical flag indicators for enhanced functionality.
4. Product Dimensions (Unit: mm)
表格
| Dimension Parameter | Value |
|---|---|
| Width | 21 |
| Height | 27 |
| Depth | 46 |
| Pin Configuration | 14-pin (standard for 4CO relays) |
| Socket Compatibility | 14-pin RXZE2 series sockets (e.g., RXZE2S114M) |
| Mounting Standard | 35 mm DIN Rail (EN 60715) |
5. Weight and Material Specifications
表格
| Component | Material | Weight (g) |
|---|---|---|
| Main Housing | Flame-retardant thermoplastic (UL94 V0) | 24 |
| Coil Assembly | Copper wire, iron core | 8 |
| Contact System | Silver-nickel alloy, copper base | 3 |
| LED Indicator | LED chip, plastic lens | 1 |
| Plug-in Pins | Tin-plated brass | 2 |
| Total Net Weight (Complete Unit) | – | 38 |
6. Key Performance Parameters
表格
| Parameter | Value |
|---|---|
| Product Type | Miniature plug-in electromechanical power relay |
| Model Number | RXM4LB2BD |
| Contact Configuration | 4CO (4NO + 4NC) |
| Coil Voltage | 24 V DC |
| Rated Contact Current | 3 A (AC-1 / DC-1) |
| LED Status Indicator | Yes |
| Insulation Voltage (Ui) | 500 V AC |
| Impulse Withstand Voltage (Uimp) | 4 kV |
| Mechanical Life | 10,000,000 operations |
| Electrical Life | 100,000 operations (rated load) |
| Operating Temperature | -40°C to +55°C |
| Protection Class | IP40 |
| Mounting Type | 35 mm DIN Rail (via 14-pin socket) |
| Net Weight | 38 g |
| Standards Compliance | IEC 61810-1, UL 508, CSA C22.2 No. 14 |
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
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We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
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