ABB IEMMU02 Module Mounting Unit - Front Mounting

Module Mounting Unit - Front Mounting Manufacturers ABB, Bailey Model(s)

ABB Bailey Infi 90, ABB Bailey Infi 90 and Net 90

Additional Information IEMMU01 Module Mounting Unit +5, +-15, 24 Vdc, 120/240Vac, 50/60Hz, Front Mounting, 12-slots

Estimated Shipping Size Dimensions: 19.0" x 7.0" x 13.0" (48.3 cm x 17.8 cm x 33.0 cm)

Weight: 9 lbs 5.0 oz (4.2kg )

Tariff Code: 8538907080

Country of Origin: United States Ships from Webster NY, USA

Module Mounting Unit - Front Mounting

Features and benefits

Termination for up to eight (8) analog I/O process signals within a horizontal row.

All SD I/O modules & bases of all types (Singular or Redundant) AND (Compact or Full-size), are

100% fully compatible with each other. Thus, Singular & Redundant, Compact or Full-size I/O

modules can be mounted within a single, common HN800 I/O bus.

Optional mechanical keying can be implemented to prevent insertion of the wrong I/O module type.

Latching device on the base locks the base into position on DIN-Rail.

Industry standard 35-mm DIN rail, Horizontal row mounting.

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions

(centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible

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