ABB 48990001-NK DSSR 122 Power Supply Unit

Product Description

Configured for DC-to-DC power conversion within the ABB Advant Master process control system, the ABB 48990001-NK (DSSR 122 Power Supply Unit) accepts a 24 VDC input and provides a regulated 5 V DC output at 40 A.

Hardware Specifications

DC Power Conversion and Regulation

The DSSR 122 receives a 24 VDC supply and regulates the output to 5 V DC. The specified output capacity is 40 A. Therefore, the unit is intended for DC-powered electronic loads that require a regulated low-voltage supply.

The associated spare fuse is specified as ABB part number 5672827-20, with a 20 A rating. Fuse replacement should follow the installed system documentation and the specified fuse type.

Frequently Asked Questions

Q: What input voltage does the ABB 48990001-NK accept?
A: The specified input is 24 VDC.

Q: What output does the DSSR 122 provide?
A: It provides a regulated 5 V DC output rated at 40 A.

Q: Which spare fuse is specified for this unit?
A: The supplied ABB data specifies a 20 A fuse, part number 5672827-20.

Field Installation Guidelines

Install the DSSR 122 according to the mechanical arrangement and wiring documentation of the associated ABB system. Verify the 24 VDC input polarity and supply condition before energizing the unit.

Keep DC power wiring physically separated from high-voltage and high-noise conductors where the cabinet design permits. Secure conductors to prevent mechanical stress on terminals and connectors.

Before commissioning, verify the 5 V DC output against the required system connection. Do not substitute the specified 20 A spare fuse with an unverified fuse rating or type.

ABB documentation identifies this product as following EU Directive 2011/65/EU information, while the supplied declaration notes specific RoHS applicability conditions.

Other Attributes

• Series: Advant DCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

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