WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
The B&R 2PS740.9 is an industrial-grade power supply module designed to deliver reliable and stable electrical power to automation systems. It is widely used in industrial automation applications that require consistent 24 V DC power within control cabinets and distributed control systems.
Industrial environments such as manufacturing, process control, and material handling rely on the 2PS740.9 power supply to ensure uninterrupted operation of controllers, I/O modules, and field devices. This power supply addresses critical challenges including voltage stability under varying load conditions, noise filtering, and protection against electrical disturbances, which are essential for maintaining system reliability and longevity.
The B&R 2PS740.9 power supply module operates with a wide input voltage range of 100 to 240 V AC, suitable for global industrial power standards. It provides a 24 V DC output with a current capacity of 4 Amps and power rating up to 100 Watts, making it suitable for medium-sized automation systems. The module is designed for easy integration with B&R’s modular automation platforms, supporting clean and efficient power distribution.
- 2PS740.9
Its compact design facilitates mounting within standard control cabinets and terminal blocks, optimizing space utilization. The unit incorporates vital protection features such as overvoltage, overcurrent, and short-circuit protection to safeguard connected equipment. Operating reliably within industrial temperature ranges, the 2PS740.9 ensures stable performance even in harsh environmental conditions.
| Parameter | Value |
|---|---|
| Model | 2PS740.9 |
| Brand | B&R |
| Type | Industrial Power Supply Module |
| Input Voltage | 100 to 240 V AC |
| Output Voltage | 24 V DC |
| Output Current | 4 Amps |
| Power Rating | 100 Watts |
| Protection Features | Overvoltage, overcurrent, short-circuit protection |
| Mounting | DIN rail / Terminal block |
| Operating Temperature | Industrial standard (typically -10°C to 60°C) |
| Dimensions (HxWxD) | Approximately 35 x 32 x 9 cm |
| Weight | Around 2 kg |
Related Modules or Compatible Units
2PS425.9 – Smaller power supply module rated at 100 W for compact systems.
2TB120.9 – Terminal block with 20 pins for easy wiring and integration.
2TB140.9 – Larger terminal block with 40 pins for distributed wiring setups.
2PS740 – Core power supply variant supporting modular automation platforms.
Power Supply Modules in B&R 2010 Series – Compatible replacements and upgrades.
Before installation of the B&R 2PS740.9, verify adequate control cabinet space, ventilation, and grounding to comply with B&R installation guidelines and maintain safe operations. Proper wire size and quality terminal connections are essential to minimize voltage drops and electromagnetic interference.
Routine inspections should focus on verifying stable output voltage, checking for any indication of overheating, and ensuring protection devices are operational. Maintaining clean and dust-free environments around the power supply enhances heat dissipation and reduces thermal stress. Timely firmware or hardware updates from B&R should be applied when available to keep the system running reliably.
