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ABB DSSR 170 48990001-PC Power Supply UnitABB DSSR 170 48990001-PC Power Supply UnitABB DSSR 170 48990001-PC Power Supply Unit
ABB DSSR 170 48990001-PC Power Supply Unit
ABB DSSR 170 48990001-PC Power Supply Unit
ABB DSSR 170 48990001-PC Power Supply Unit

ABB DSSR 170 48990001-PC Power Supply Unit


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PRODUCT SKU : DSSR 170 48990001-PC

PRODUCT TYPE : Power Supply Modules

PRODUCT VENDOR : ABB


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

Configured for internal DC voltage regulation and bus power conversion in ABB Advant Master subracks, the ABB DSSR 170 48990001-PCC (DSSR 170 Power Supply Modules) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model DSSR 170
Order Code 48990001-PCC
Brand ABB
Origin Sweden
Product Type Power Supply Modules
Input Voltage 24 VDC
Output Voltage 5 VDC regulated
Output Current 10 A
Spare Fuse 5 A (Part Number 56722011-21)
Dimensions 234 mm x 54 mm x 108 mm
Weight 0.6 kg
Operating Temp 0 to 55 deg C
Power Consumption Internal conversion loss profile
WEEE Category 5. Small Equipment (No External Dimension More Than 50 cm)

Backplane Bus Communication & I/O Density Scaling

The ABB DSSR 170 power supply module steps down 24 VDC input power to deliver a stabilized 5 VDC, 10 A logic supply directly across the backplane bus. Maintaining regulated power rails prevents voltage drop issues during high-density I/O card population. Integrated backplane interfaces ensure firmware flash compatibility and status reporting across host controller diagnostics.

Frequently Asked Questions

Q: What primary voltage conversion does the DSSR 170 unit perform?

A: The DSSR 170 accepts a 24 VDC input supply and converts it to a regulated 5 VDC output at up to 10 A to energize backplane logic components.

Q: Can the DSSR 170 power supply module be extracted while primary DC power is applied?

A: Main 24 VDC input power must be switched off prior to inserting or removing the unit to prevent arc discharge across backplane connectors and logic corruption.

Field Installation Guidelines

  1. Isolate primary 24 VDC power before inserting the DSSR 170 power supply module into the chassis rack.
  2. Align module guides with the subrack rails and slide in until the rear power plug engages completely with the backplane.
  3. Fasten faceplate locking screws to ensure solid chassis grounding and structural stability under operational vibration.
  4. Verify that the internal 5 A protection fuse (56722011-21) is seated correctly before energizing the module.
  5. Ensure adequate convection air flow above and below the module assembly inside the enclosure.

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




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