ABB DO820 3BSE008514R1
ABB DO820 3BSE008514R1
ABB DO820 3BSE008514R1
ABB DO820 3BSE008514R1
ABB DO820 3BSE008514R1
ABB DO820 3BSE008514R1
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    Apter Power supports quotations, relay-load checks, documentation, and 250 V MTU review for DO820.

DO820 3BSE008514R1

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ABB DO820 3BSE008514R1 is an eight-channel S800 normally open relay output module with individually isolated channels.
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Technical specifications for DO820 3BSE008514R1

  • Manufacturer:
    ABB
  • Part Number:
    DO820 3BSE008514R1
  • Product Family:
    ABB Advant OCS and Advant-800xA
  • Product Type:
    S800 I/O Normally Open Relay Output Module
  • Stock:
    1
  • Signal Specification:
    5-250 V AC/DC, maximum 3 A
  • Output Channels:
    8
  • Signal Type:
    Relay, normally open
  • Isolation:
    Individually isolated channel to channel
  • Relay Supervision:
    24/12 V relay power converter
  • Compatible MTUs:
    TU811, TU813, TU831, TU836, TU837, TU851
  • Keying Code:
    AD
  • Operating Temperature:
    0 to +55 C
  • Protection Rating:
    IP20
  • Weight:
    0.23 kg
  • 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 Relay Loads Isolation Terminal Selection

Features:

  • Normally open relays: Eight channels switch the ABB-documented AC or DC load range.
  • Individual isolation: Each output is isolated from the other channels and circuit common.
  • Relay supervision: Internal relay-power monitoring reports a warning when its supply is lost.

This ordering code is the normally open relay variant and must not be confused with DO821 normally closed or transistor DO810 outputs.

The module isolates and switches field loads while reporting output state and relay-power supervision through S800 I/O.

Confirm voltage category, load current and inrush, contact suppression, MTU voltage class, terminal spacing, OSP, and safety isolation before installation.

Availability is subject to Apter Power inventory and sourcing confirmation.

DO820 3BSE008514R1 Manuals, Datasheets, and 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.

DO820 3BSE008514R1 S800 I/O Normally Open Relay Output Module Specifications

General

  • ManufacturerABB
  • ModelDO820 3BSE008514R1
  • ConditionNew and factory sealed
  • Product FamilyABB S800 I/O

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.

Contact-duty review

  • AC or DC: Classify every connected load before selecting protection.
  • Inrush: Check starting or capacitive current against the load design.
  • Inductive loads: Provide the approved suppression outside the relay contact.
  • Duty cycle: Review switching frequency and expected contact life.

Channel separation checks

  • Individual channels: Preserve isolation between every relay circuit.
  • Circuit common: Do not add unintended common connections.
  • Voltage segregation: Maintain cabinet spacing and wiring separation.
  • Grounding: Apply the site protective-earth and shielding design.

250 V MTU preparation

  • Approved list: Use only an ABB-listed MTU for DO820.
  • Voltage class: Confirm the 250 V termination requirement.
  • Fuse plan: Match external and MTU protection to each load.
  • Keying: Verify keying code AD and the installed base.
Description
DO820 3BSE008514R1 is an ABB S800 I/O digital output module with eight normally open relay channels for the documented AC or DC switching range.

DO820 3BSE008514R1 provides individual channel isolation, output indication, relay-supply supervision, and OSP handling for predetermined output states under specified communication conditions.

Before installing DO820 3BSE008514R1, confirm load voltage, current and inrush, AC or DC duty, contact protection, individual isolation, 250 V MTU selection, and complete article number.
Alternative Names
DO820 3BSE008514R1 DO820-3BSE008514R1 DO 820 3BSE 008514 R1 DO8203BSE008514R1 ABB DO820 3BSE008514R1 Asea Brown Boveri DO820 ABB S800 I/O DO820 DO820 Normally Open Relay Module
Technical notes
DO820 3BSE008514R1 is the eight-channel normally open relay output with individual isolation. Verify load duty, inrush, contact protection, and the 250 V MTU.
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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.
When should DO820 be selected for an isolated relay-output application?
Choose it when the approved design requires normally open relay contacts, individual isolation, and the documented AC or DC load range.
What load and switching-duty information should accompany a DO820 quotation?
Provide voltage, AC or DC duty, steady current, inrush, switching rate, suppression, quantity, MTU, and required condition.
Which MTU and terminal details must be checked before installing DO820?
Confirm the full 250 V MTU label, fuse and terminal arrangement, keying code, conductor size, and cabinet separation.
What contact protection should be reviewed for inductive loads on DO820?
Use the project-approved suppression and protection method after reviewing voltage, current, inrush, switching rate, and safety requirements.
What should be checked when DO820 reports a relay-supply warning?
Check the monitored relay-power converter, ModuleBus supply, module diagnostics, and the approved supervision setting.
How should DO820 relay outputs be tested during commissioning?
Verify isolation and safe state, then operate one channel at a time while observing the field load, feedback, and alarms.
What engineering review is required before replacing DO821 or DO810 with DO820?
No. Compare normally open versus normally closed contacts, relay versus transistor duty, voltage, isolation, MTU, and logic.