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8178-4002

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GEC Industrial Controls 8178-4002 is a GEM80 110 V AC discrete output module for switching field circuits in legacy controller racks.
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Technical specifications for 8178-4002

  • Manufacturer:
    GEC Industrial Controls
  • Part Number:
    8178-4002
  • Product Family:
    GEM80 Series
  • Product Type:
    GEM80 110 V AC Output Module
  • Stock:
    1
  • Field voltage class:
    110 V AC
  • Controller platform:
    GEC GEM80
  • Load control:
    Processor-commanded field switching
  • Circuit protection:
    External fusing per cabinet design
  • Termination:
    Rack and field connections defined by installation
  • Variant control:
    Do not substitute 8178-4001 data
  • Weight:
    1.587 lbs (0.72 kg)
  • Estimated shipping dimensions:
    23.5 x 23.4 x 3 cm
  • Tariff Code:
    8538901190
  • Country of origin:
    United Kingdom
  • 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 Applications Environmental Ratings Safety & Compliance Control

Features:

  • Switches 110 V AC field circuits from a GEM80 I/O rack.
  • Uses the exact 8178-4002 output-module configuration.
  • Works with the field supply and protection defined by the original cabinet.
The -4002 ending is essential because the 8178 family includes other output arrangements.

Processor commands are translated into controlled AC switching for the assigned field loads.

Circuit voltage, commoning and load duty must be checked individually before reconnection.

Availability is confirmed against the complete 8178-4002 identity, required condition, quantity and delivery destination at quotation.
Verified resources for GEC Industrial Controls 8178-4002: 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.
  • Switch legacy 110 V AC actuators from a GEM80 controller.
  • Restore discrete field outputs in an existing GEC automation cabinet.
  • Maintain process interlocks that rely on the original AC output wiring.
  • The module must remain inside the protective environment of its GEM80 cabinet.
  • Ventilation and contamination control are important for aged switching components.
  • Field wiring insulation must remain suitable for the 110 V AC circuit class.
  • Isolate the external AC supply independently of controller power before handling terminals.
  • Prove zero voltage and secure driven equipment against unexpected motion.
  • Restore circuit covers and protective earthing before operational testing.
  • Each used channel follows the processor output assignment in the application.
  • External commons and fuses define the energized field-circuit groups.
  • Output proving should confirm both commanded state and actual device response.
Description
8178-4002 is the 110 V AC output assembly used in the GEC GEM80 I/O platform. Its field role is to switch alternating-current loads under processor command while keeping channel wiring organized through the original rack and termination arrangement. The 110 V AC rating places this assembly in a distinct field-voltage class, making circuit segregation and correct common allocation important parts of its installation.

The module can operate plant devices whose current and switching duty fall inside the approved output specification. External fusing, field supply distribution and any interposing device remain part of the cabinet design and determine the actual circuit protection. It is used for actuator, contactor or indication duties where the GEM80 application needs to switch alternating-current loads through the documented output arrangement.

Do not import channel details from the 8178-4001 variant. Confirm the -4002 circuit schedule, output loading, common connections and field voltage, then prove each command with the driven equipment isolated or placed in a safe state. Commissioning should measure the actual load and leakage conditions, check protective devices, and prove the safe de-energized state before reconnecting equipment capable of movement or process change.
Alternative Names
8178-4002 8178 4002 81784002 GEC 8178-4002 GEC GEM80 110 VAC Output GEM80 AC Output Module 8178-4002 8178 110 V Output Board
Technical notes
Treat 8178-4002 as a 110 V AC switching module and verify external fusing plus load inrush; 8178-4001 data must not be applied to this suffix.
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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.
What field-voltage class is switched by GEC 8178-4002?
The exact -4002 assembly is identified as a 110 V AC output module.
Why should 8178-4001 specifications be excluded from the 8178-4002 page?
The suffixes denote different configurations, so only evidence tied to -4002 can define its output arrangement.
Which plant devices can GEC 8178-4002 control?
It switches compatible 110 V AC field loads through circuits designed within the module's documented duty.
How are used 8178-4002 output modules qualified for an offer?
Apter Power records the exact code, board state, connector condition, quantity and requested delivery terms.
What replacement review is needed before changing GEC 8178-4002?
Confirm voltage, channel map, common connections, load inrush, fuses, rack position and fail-safe state.
What should be included in a GEC 8178-4002 technical request?
Send the module and rack labels, output schedule, load details, cabinet drawing, quantity and destination.

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