48990001-LY ABB DSSA165 600W Industrial Power Module

Product Overview

The ABB DSSA165 (48990001-LY) serves as the high-capacity energy backbone for Advant Master process control systems. This 100% Brand New original power supply unit (PSU) converts AC input into a regulated, low-noise 24 VDC output to drive controllers, I/O modules, and field peripherals. Engineered for continuous duty in heavy industrial environments, the DSSA165 provides the high amperage necessary for large-scale automation clusters where voltage stability is non-negotiable.

Technical Specifications

Engineering Advantages

• High-Amperage Output (25 A): The DSSA165 delivers a massive 25 A current, allowing a single unit to power extensive I/O racks and multiple processors simultaneously. This high power density reduces the need for multiple smaller PSUs, simplifying cabinet wiring and reducing potential failure points.

• Redundant Protection Circuitry: The unit features internal safeguards against overload, short circuits, and thermal runaway. These protection layers prevent downstream damage to sensitive AC 450 or Advant Master controllers during electrical faults, ensuring your system remains safe even under abnormal load conditions.

• Legacy Lifecycle Support: By complying with specific exemptions under EU Directive 2011/65/EU, the DSSA165 remains a viable, long-term replacement part for existing Advant Master installations. It enables facilities to maintain aging infrastructure without expensive hardware migrations.

• Ruggedized Construction: Weighing 26.16 kg, this unit utilizes heavy-duty components and heat-sync architecture designed for high-vibration and high-temperature electrical rooms. Its robust chassis supports both rack and panel mounting, adapting to various cabinet configurations.

FAQs

• Q: How does the DSSA165 handle input voltage fluctuations?

• A: The DSSA165 accepts standard industrial AC inputs (120V/220V/230V). Its internal regulation circuitry maintains a steady 24 VDC output even when the primary line voltage fluctuates, protecting your I/O signal integrity.

• Q: Is there a recommended maintenance schedule for this power supply?

• A: Yes. To maximize service life, ABB recommends the PM10YDSSA165-1 preventive maintenance kit. Replacing aging components (such as capacitors) every 10 years prevents unexpected power failures and extends the total lifecycle of the PSU.

• Q: Can I use this unit to power field instruments directly?

• A: While the DSSA165 is primarily designed for Advant Master system components, its regulated 24 VDC output is suitable for field sensors and transmitters, provided the total current draw does not exceed 25 A.

• Q: Why is the DSSA165 exempt from certain RoHS directives?

• A: The exemption under Directive 2011/65/EU acknowledges the necessity of this hardware for the maintenance of high-reliability industrial "large-scale fixed installations." This ensures that critical infrastructure, such as power plants and refineries, can source genuine original parts.