IEMMU21
IEMMU21
IEMMU21
IEMMU21
IEMMU21
IEMMU21
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    Apter Power reviews IEMMU21 kit scope, cabinet evidence, and supplied hardware before quotation.

IEMMU21

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ABB IEMMU21 is the module mounting unit supplied in the documented IEMMU21-KIT for selected Harmony power-system upgrades.
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Technical specifications for IEMMU21

  • Manufacturer:
    ABB
  • Part Number:
    IEMMU21
  • Product Family:
    ABB Bailey
  • Product Type:
    Module Mounting Unit
  • Stock:
    1
  • Documented kit:
    IEMMU21-KIT
  • Kit quantity:
    1 module mounting unit
  • Included bus cable:
    1 NKEB01 expander-bus cable
  • Additional kit hardware:
    Wire-and-terminal assemblies, cable assembly, spring nuts and pan screws
  • Tariff Code:
    Please confirm the destination before shipping
  • 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 Specifications Upgrade Hardware Decision

Features:

  • Named mounting unit in ABB IEMMU21-KIT
  • Coordinated expander-bus cable and installation hardware
  • ABB guidance required because not every upgrade needs the unit
IEMMU21 appears in ABB's documented mounting-unit kit for selected power-supply evolution projects.

The kit combines the mounting unit with the expander-bus and mechanical installation parts needed for the defined scope.

Engineering review must first establish whether the existing cabinet actually requires the mounting-unit change.

Availability of IEMMU21 is subject to Apter Power's current inventory and sourcing confirmation.
IEMMU21 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.
ABB IEMMU21 Module Mounting Unit Specs

General

  • ManufacturerABB
  • ModelIEMMU21
  • ConditionNew Original ready stock
  • Product FamilyABB Bailey
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.

ABB kit definition

  • Kit model: use IEMMU21-KIT as the documented assembly reference
  • Mounting unit: one IEMMU21 is listed
  • Bus cable: one NKEB01 is included
  • Decision: apply the kit only where the upgrade design requires it

Installation-hardware scope

  • Wire assemblies: ten wire-and-terminal assemblies are listed
  • Cable assembly: one documented cable assembly is included
  • Fasteners: spring nuts and pan screws form part of the kit
  • Completeness: stage the full approved bill before the outage

When the unit is needed

  • Cabinet survey: compare the installed mounting arrangement
  • Upgrade path: identify the selected power-supply kit
  • ABB guidance: use field-service advice for uncertain cases
  • Acceptance: verify mounting, bus, and module restoration
Description
IEMMU21 is the module mounting unit named in ABB's IEMMU21-KIT for Harmony, INFI 90, and related power-supply upgrade work. ABB lists one mounting unit in the kit together with expander-bus and assembly hardware.

The documented kit around IEMMU21 also includes an NKEB01 expander-bus cable, wire-and-terminal assemblies, a cable assembly, spring nuts, and pan screws. These items define a coordinated mounting scope rather than a bare-unit assumption.

ABB notes that IEMMU21 is not required for every power-supply upgrade and recommends field-service guidance on when the mounting unit is needed. Project approval should therefore follow the installed cabinet and selected upgrade kit.
Alternative Names
ABB IEMMU21 IEMMU 21 IEMMU-21 ABB Bailey IEMMU21 IEMMU21-KIT mounting unit
Technical notes
Do not add IEMMU21 automatically to every power-supply upgrade. ABB states that module mounting units are not required in all cases and defines IEMMU21-KIT with an NKEB01 expander-bus cable plus wire, terminal, cable, and mounting hardware; confirm the cabinet-specific upgrade bill of materials with ABB service guidance.
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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 does the NKEB01 cable change the procurement scope for IEMMU21?
ABB lists one NKEB01 expander-bus cable in IEMMU21-KIT, so a bare mounting-unit quotation must not be represented as the complete kit.
How should the ten wire-and-terminal assemblies affect IEMMU21 receiving inspection?
Count all ten documented 66322 85A54 assemblies during receipt inspection and resolve any shortfall before the planned outage.
Which fastening items complete the documented kit containing IEMMU21?
ABB lists five NMPCC16002 spring nuts and five NIDAC16008 pan screws, in addition to the cable and wire assemblies.
What must commissioning verify after IEMMU21 enters an approved upgrade configuration?
Confirm mechanical fastening, NKEB01 expander-bus continuity, restored module positions, and the power-up sequence specified by the project procedure.
How is IEMMU21 used in the documented SPICI800 communication bundle?
ABB lists one mounting unit with SPIET800, SPNIS21, NKLS01-10, NFTP01, and NTCL01; use that bundle table to define the supplied scope.
Within ABB's SPIIR01-232L bundle, why should IEMMU21 not be treated as the communication module?
ABB assigns the mounting role to this unit, while SPIIT12 and the listed interface hardware provide the remote communication functions.

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