ABB DSSS170 48970001-A
ABB DSSS170 48970001-A
ABB DSSS170 48970001-A
ABB DSSS170 48970001-A
ABB DSSS170 48970001-A
ABB DSSS170 48970001-A
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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power can assist with DSSS170 48970001-A pricing requests and access to applicable official ABB documentation for legacy maintenance.

DSSS170 48970001-A

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ABB DSSS170 48970001-A is a diode unit that votes between two 24 VDC supplies for isolated sensor power in Advant Master installations.
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Technical specifications for DSSS170 48970001-A

  • Manufacturer:
    ABB
  • Part Number:
    DSSS170 48970001-A
  • Product Family:
    ABB Master
  • Product Type:
    Diode Unit
  • Stock:
    1
  • Function:
    Diode voting for redundant 24 VDC field power
  • Supply arrangement:
    Supply A and Supply B
  • Output circuit:
    Isolated 24 VDC sensor branch
  • System application:
    Advant Controller 450 and S100 I/O field power
  • Fault supervision:
    Onboard indication for an unregulated supply fault
  • Rated output current:
    25 A
  • Exchange Number:
    EXC48970001-A
  • Condition:
    New Original, Ready Stock
  • Weight:
    8.818 lbs (4 kg)
  • Tariff Code:
    8538900000
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Power Path System Role Fault Signals Applications

Features:

  • ABB product ID 48970001-A for exact installed-unit identification
  • Exchange reference EXC48970001-A for legacy service handling
  • 24 VDC output rated at 25 A for the connected load
ABB DSSS170 48970001-A combines the DSSS170 type designation with product ID 48970001-A as one complete equipment identity.

The 25 A rating defines the downstream load boundary for the installed 24 VDC circuit and must be retained when the unit is renewed.

DSSS170 and DSSS171 belong to different power-system arrangements, so the complete cabinet topology must be identified before selecting a spare.

The ABB DSSS170 48970001-A Diode Unit may remain available through Apter Power for legacy Advant Master maintenance and official-documentation support.
ABB DSSS170 48970001-A Diode Unit Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Source and load connections

  • Supply A: The first unregulated 24 VDC source enters the diode-voting path.
  • Supply B: The second 24 VDC source provides the redundant feed.
  • Isolation: The diode stage prevents one source from back-feeding the other.
  • Sensor branch: The selected supply feeds the isolated field-instrument circuit.

Advant power-system placement

  • AC 450: DSSS170 serves the isolated sensor-power branch in the controller cabinet.
  • AC 410: The unit appears in redundant field-power packages for Advant Controller 410.
  • S100 I/O: It supports field-power arrangements associated with S100 I/O equipment.
  • Regulator topology: DSSS170 is assigned to the single-regulator arrangement rather than redundant regulator voting.

Supply supervision behavior

  • Status LED: The onboard indication reports a fault affecting an unregulated source.
  • Upstream check: Both 24 VDC feeds and their protection should be inspected when the indication changes.
  • Branch distinction: A source-path alarm does not by itself prove that a downstream instrument has failed.
  • Maintenance use: The indication helps isolate a supply-side problem before cabinet hardware is removed.

Documented cabinet uses

  • AC field power: The unit participates in redundant alternating-current-derived supply arrangements.
  • DC field power: It is also documented in direct-current field-power configurations.
  • Isolated sensors: The output branch supplies instrumentation kept separate from the S100 I/O regulator path.
  • Legacy maintenance: Complete product and exchange identifiers support cabinet-level service planning.
Description
Within Advant Controller 450 power arrangements, ABB DSSS170 48970001-A provides the diode stage assigned to the isolated field-power branch.

The ABB DSSS170 48970001-A belongs to redundant field-power configurations that retain a single regulator path. Advant OCS system diagrams distinguish this sensor circuit from the separate voting arrangement used for redundant S100 I/O regulators.

As part of an installed Advant Master cabinet, ABB DSSS170 48970001-A preserves source separation while supplying downstream instrumentation without acting as a voltage regulator.
Alternative Names
ABB DSSS170 48970001-A ABB DSSS 170 48970001-A DSSS170 48970001A DSSS 170 48970001-A 48970001-A DSSS170 EXC48970001-A DSSS17O 48970001-A ABB Advant Master DSSS170
Technical notes
DSSS170 48970001-A belongs on the isolated 24 VDC sensor branch; it is a diode-voting unit rather than a voltage regulator.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why would an engineer select DSSS170 48970001-A rather than a regulator voting unit?
DSSS170 48970001-A serves the isolated sensor-supply branch with a single regulator path, while redundant S100 I/O regulator arrangements use a different voting unit.
How should supply A and supply B be checked when DSSS170 48970001-A signals a fault?
When DSSS170 48970001-A reports a fault, check both incoming 24 VDC sources and their upstream protection before disturbing the downstream sensor circuit.
Can DSSS170 48970001-A be used as the voltage regulator in an Advant cabinet?
No. DSSS170 48970001-A performs diode voting between power sources; the voltage-regulation function remains with the regulator equipment in the documented system architecture.
Where is DSSS170 48970001-A placed in an Advant Controller 450 power arrangement?
In the Advant Controller 450 arrangement, DSSS170 48970001-A sits between the redundant source supplies and the isolated 24 VDC sensor load.
What must match before replacing DSSS170 48970001-A in an installed system?
For DSSS170 48970001-A replacement, match product ID 48970001-A, the supply-A and supply-B wiring, the sensor branch, and the installed connection labels.
How does DSSS170 48970001-A support redundant field power?
DSSS170 48970001-A keeps the redundant source paths isolated and passes the selected 24 VDC field supply to the connected instrumentation branch.
Which indication helps diagnose an upstream supply problem on DSSS170 48970001-A?
The onboard status indication on DSSS170 48970001-A identifies a fault affecting an unregulated supply, helping maintenance staff focus upstream checks.

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