TRICONEX,3503E
TRICONEX,3503E
TRICONEX,3503E
TRICONEX,3503E
TRICONEX,3503E
TRICONEX,3503E
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3503E

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Triconex 3503E is a self-testing TMR digital input module with 32 points commoned in groups of eight for nominal 24 VAC/VDC field signals.
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Technical specifications for 3503E

  • Manufacturer:
    Invensys
  • Part Number:
    3503E
  • Product Family:
    Triconex
  • Product Type:
    24 VAC/VDC TMR Digital Input Module
  • Stock:
    1
  • Input architecture:
    TMR digital input with self-test
  • Nominal input voltage:
    24 VAC/VDC
  • Input points:
    32, commoned in groups of 8
  • Input frequency:
    DC or 47 to 63 Hz
  • Recommended DC input range:
    20 to 42.5 VDC
  • Maximum input voltage:
    42.5 VAC/VDC
  • OFF to ON threshold:
    15 VAC/VDC typical; 18 VAC/VDC worst case
  • ON to OFF threshold:
    8 VAC/VDC typical; 6 VAC/VDC worst case
  • Nominal turn-on current:
    6 to 9 mA
  • Input impedance:
    > 1.25 kΩ nominal
  • OFF to ON delay:
    < 8 ms
  • ON to OFF delay:
    < 15 ms
  • Point isolation:
    1,000 VAC minimum; 1,500 VDC minimum
  • Logic power:
    < 10 W
  • Point indication:
    One state indicator per point
  • Weight:
    2.1 kg
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • 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 Input Wiring Diagnostics Commissioning Application
  • Acquires 32 safety-related digital inputs in groups of eight
  • Uses triplicated input processing with continuous online diagnostics
  • Supports nominal 24 VAC/VDC field signals with point isolation

3503E is a self-testing TMR digital input module with 32 points commoned in groups of eight for nominal 24 VAC/VDC field signals.

Three independent input channels condition and process the field states, while continuous diagnostics and per-point indication support high-integrity safety input acquisition.

Before installation or replacement, verify the field voltage, common grouping, external termination panel and cable, intrinsic-safety barrier type, input transition behavior, chassis compatibility and approved safety-loop test procedure.

Availability, condition, price, and shipping time for 3503E are confirmed during quotation.

Triconex 3503E 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.

  • The 32 points are commoned in groups of eight
  • Field signals must remain within the documented thresholds and maximum voltage
  • The associated external termination hardware and cable must match the module
  • The module includes self-test capability for stuck-ON detection
  • Point-state indicators support local loop checks
  • PASS, FAULT and ACTIVE indicators report module status
  • Confirm field commons and polarity before insertion
  • Test each safety input through the approved cause-and-effect procedure
  • Do not use shunt-diode intrinsic-safety barriers unless the official application guidance approves the module
  • Emergency shutdown field-input monitoring
  • Burner management permissive and trip input acquisition
  • Fire and gas detector state monitoring
Description
3503E is a self-testing TMR digital input module with 32 points commoned in groups of eight for nominal 24 VAC/VDC field signals.

Three independent input channels condition and process the field states, while continuous diagnostics and per-point indication support high-integrity safety input acquisition.

Before installation or replacement, confirm the field voltage, common grouping, external termination panel and cable, intrinsic-safety barrier type, input transition behavior, chassis compatibility and approved safety-loop test procedure.
Alternative Names
3503E Triconex 3503E Invensys Triconex 3503E Triconex 3503E 3503E TMR Digital Input Module 24 VAC/VDC DI 3503E
Technical notes
Triconex 3503E is not recommended for shunt-diode intrinsic-safety barriers; verify the complete field loop, termination hardware, thresholds and safety test before service.
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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.
Can Triconex 3503E be used with shunt-diode intrinsic-safety barriers?
The manufacturer guide does not recommend 3503E for that barrier type and directs those applications to 3505E; verify the approved loop design before substitution.
What must be matched before replacing Triconex 3503E?
Confirm the exact model, field voltage, common grouping, chassis slot, external termination panel, interface cable, hardware revision and configured point map.
Are the termination panel and cable included with Triconex 3503E?
Do not assume so. Check the quoted stock scope and match the documented external termination hardware separately.
Why can Triconex 3503E report an intermittent input or module fault?
Check threshold margin, loose commons, leakage, field power quality, diagnostic transitions, cable and termination condition, grounding and the actual diagnostic record.
What should be tested after installing Triconex 3503E?
Exercise every safety input from the field device, verify indication and engineering status, confirm cause-and-effect logic and document the return-to-service test.
Can Triconex 3503E be substituted with another 24 V input module?
Not by voltage alone. Point grouping, thresholds, diagnostics, barriers, termination hardware, system version and safety certification must all be confirmed.
How should a spare Triconex 3503E be checked before use?
Verify model and revision, connector and keying condition, storage history, ESD handling, clean contacts and compatibility with the installed chassis and project.

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