Product Introduction
When industrial processes demand fail-safe shutdowns and reliable isolation, the Schneider BMXSRA0405 delivers. This discrete output module is part of the Modicon X80 series, designed for safety-critical applications that require four isolated relay outputs. It handles both AC and DC loads from 24 to 230 V AC and 12 to 24 V DC, making it a versatile choice for harsh environments.
Technical Specifications
The Schneider BMXSRA0405 is built to rigorous standards, with specifications that ensure long-term operation under demanding conditions. Below are key parameters drawn directly from the product datasheet:
| Parameter |
Value |
| Discrete output number |
4 (EN/IEC 61131-2) |
| Output type |
Relay |
| Output voltage (AC) |
24…240 V (10…264 V AC) |
| Output voltage (DC) |
12…24 V (10…34 V DC) |
| Conventional free air thermal current [Ith] |
5 A |
| Power dissipation |
3.9 W |
| Response time (activation/deactivation) |
12 ms / 6 ms |
| MTBF reliability |
624,000 hours |
| Mechanical durability |
10,000,000 cycles |
| Insulation resistance |
>10 MOhm at 500 V DC |
| IP degree of protection |
IP20 |
| Net weight |
0.320 lb (0.145 kg) |
Industry Applications
The Schneider BMXSRA0405 excels in applications where safety and isolation are paramount. In chemical processing plants, it isolates control signals from high-voltage circuits, preventing ground loops. In heavy machinery, its relay outputs handle motor starter commands while providing galvanic isolation. The module's robust electrical durability (e.g., AC-15: 80,000 cycles at 250 VA) ensures long service life in repetitive switching tasks.
Maintenance & Reliability
Reliability is built into the Schneider BMXSRA0405 with an MTBF of 624,000 hours and conformal coating for protection against moisture and dust. However, external protection is required: each output must use a fast-blow fuse for short-circuit protection, and for inductive loads, a discharge diode (DC) or RC circuit/ZNO surge limiter (AC) is necessary. The module's mechanical durability of 10 million cycles means minimal wear under normal operation. Regular inspection of external fuses and suppression components ensures continued safe performance.
Selection Guide & Purchasing Advice
Before purchasing the Schneider BMXSRA0405, verify that your system voltage matches the module's range (24-230 V AC or 12-24 V DC). Ensure you have the required external protection accessories (fuses, diodes, RC circuits) as outlined in the datasheet. For integration with Modicon X80 racks, the module is a direct fit. For reliable sourcing, visit ubest101 to verify stock and availability. This module is ideal for upgrading older relay-based safety systems or expanding new installations.