Schneider BMXDRA0804T Discrete Output Module
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| Mobile | +8613666084105 | |||||||
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Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Discrete Output Module |
| Manufacturer | Schneider Electric |
| Model | BMXDRA0804T |
| Product Series | Modicon X80 |
| Module Type | Relay Output Module |
| Number of Outputs | 8 |
| Output Type | Normally Open (NO) Relay Outputs |
| Output Logic | Positive or Negative Logic |
| Rated Output Voltage | 125 VDC |
| Output Voltage Range | 100–150 VDC |
| Maximum Switching Current | 0.3 A |
| Minimum Switching Current | 100 mA at 5 VDC |
| Output Response Time | <10 ms activation; <10 ms deactivation |
| Maximum Surge Current | 10 A capacitive, 10 ms |
| Output Protection | External fast-blow fuse required; discharge diode recommended for inductive DC loads |
| Recommended Fuse | 0.5 A, 250 VDC fast-blow fuse per relay or relay group |
| Electrical Isolation | Point-to-point isolation, up to 1780 VAC RMS |
| Insulation Resistance | >10 MΩ at 500 VDC |
| Field-to-Bus Dielectric Strength | 2000 V at 50/60 Hz for 1 minute |
| Mechanical Durability | ≥20,000,000 operations |
| Electrical Durability | ≥100,000 operations under specified load conditions |
| Typical Current Consumption | 40 mA at 3.3 VDC; 101 mA at 24 VDC |
| Maximum Current Consumption | 75 mA at 3.3 VDC; 137 mA at 24 VDC |
| Power Dissipation | ≤3.17 W |
| Connection Type | Removable 20-pin terminal block |
| Compatible System | Modicon X80 I/O platform |
| Installation | Modicon X80 rack |
| Operating Temperature | -25 to +70°C |
| Operating Altitude | Up to 2000 m without additional derating |
| Protection Rating | IP20 |
| Typical Applications | Industrial automation, actuator control, DC relay switching and process control |
| Dimensions | 120 × 32 × 104 mm |
| Weight | 0.145 kg |
FAQ
1. What is the Schneider BMXDRA0804T mainly used for?
The BMXDRA0804T is an 8-channel relay output module for the Modicon X80 platform. It is designed to switch DC loads through normally open relay contacts and is commonly used for actuator control, interlocking, industrial equipment control and process automation applications.
2. What output voltage does the BMXDRA0804T support?
The module has a rated output voltage of 125 VDC and supports an operating voltage range of 100 to 150 VDC. The actual load voltage should remain within this range, and the connected load must also comply with the module’s switching-current and protection requirements.
3. What is the maximum switching current of each BMXDRA0804T relay output?
Each relay output can switch up to 0.3 A under the specified DC operating conditions. For reliable operation, the actual load should be checked against the applicable voltage, load type and switching characteristics rather than selecting the relay based only on its maximum current rating.
4. How should inductive loads be protected when using the BMXDRA0804T?
The BMXDRA0804T does not provide built-in protection against inductive overvoltage on DC outputs. A suitable discharge diode should therefore be installed across each inductive DC load, with the polarity arranged correctly. This helps suppress the voltage spike generated when the relay opens and reduces electrical stress on the output contacts.
5. Does the BMXDRA0804T have built-in short-circuit and overload protection?
The relay outputs do not provide internal short-circuit or overload protection. Schneider recommends using a fast-blow fuse rated at 0.5 A, 250 VDC for each relay or appropriate relay group. The protection device should be installed according to the actual wiring and load arrangement.
6. How is the BMXDRA0804T connected to the control system?
The module is installed on a compatible Modicon X80 rack and uses a removable 20-pin terminal block for the eight relay output channels. Before wiring, the output voltage and polarity should be verified, and the field actuator connections should follow the terminal assignment specified for the module.
7. What should be checked if a BMXDRA0804T output does not switch the connected load?
First check whether the PLC application is issuing the correct output command and whether the corresponding channel is being activated. Then verify the field supply voltage, fuse, terminal wiring and load condition. For inductive loads, also inspect the discharge diode because an incorrectly installed or damaged suppression component can affect relay operation. If the control signal and field circuit are correct but the load remains inactive, the relay contact and module should be tested.
8. What precautions should be taken when replacing a BMXDRA0804T?
Before removing or installing the module, switch off the relevant field and actuator voltages and verify that the circuit is de-energized. Confirm the replacement reference, check the 20-pin terminal wiring and inspect the external fuses and suppression components before restoring power. After installation, test each of the eight output channels under controlled conditions and verify that the connected actuators respond correctly.
Schneider BMXDRA0804T Discrete Output Module is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
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