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Technical specifications for 05704-A-0121
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Manufacturer:Honeywell
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Product Category:DCS Systems
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Tariff Code:8537101190
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Counliy of origin:USA
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Card function:Quad relay interface
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Relay outputs:4 SPCO
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Relay modes:Latching or non-latching
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Coil logic:Energized or de-energized
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AC contact rating:5 A at 110/250 Vac; non-inductive
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DC contact rating:5 A at 32 Vdc; non-inductive
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Typical power:1 W
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Maximum power:1.7 W
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Field terminal:2.5 mm2; 14 AWG
Information
Overview
Manuals
Common Applications
Product Precautions
Honeywell 05704-A-0121 is the four-channel SPCO relay interface card for the System 57 5704 control system.
- Provides four single-pole changeover relay outputs.
- Interfaces alarm or control logic to external circuits.
- Supports latching or non-latching relay operation.
- Supports energized or de-energized coil logic.
Apply the published contact ratings only to non-inductive loads; assess suppression and derating for inductive circuits.
Important Notice: Verify the complete 05704-A-0121 identity, installed system position, connections and controlled functional result before release.
Honeywell 05704-A-0121 Manuals & Downloads
Honeywell 05704-A-0121 Official Manufacturer Excerpt (PDF)Honeywell 05704-A-0121 Installation & Commissioning Guide (PDF)
The first document records verified technical evidence. The second organizes controlled preparation, installation, commissioning and handover.
Gas alarm relay outputs
Provides four single-pole changeover relay outputs.
Shutdown interlock contacts
Interfaces alarm or control logic to external circuits.
Remote annunciation circuits
Supports latching or non-latching relay operation.
System 57 control interfaces
Supports energized or de-energized coil logic.
Honeywell 05704-A-0121 installation checks must preserve the exact identity, system assignment and witnessed acceptance record.
1
Confirm 05704-A-0121 and all four relay assignments.
2
Record normal coil state, latch mode and contact use.
3
Isolate relay circuits and cabinet power before work.
4
Check external circuits for inductive loads and stored energy.
5
Preserve terminal identity and cabinet grounding.
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Apply contact ratings only within the documented conditions.
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Exercise every changeover contact and alarm function.
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Retain the witnessed relay and safety-response record.
Technical notes
Apply the published contact ratings only to non-inductive loads; assess suppression and derating for inductive circuits.
FAQ View All FAQ
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How many relays are provided by Honeywell 05704-A-0121?The card provides four single-pole changeover relays.
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Which relay operating modes are available on Honeywell 05704-A-0121?The manual documents latching or non-latching operation and energized or de-energized coil logic.
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What AC contact rating is documented for Honeywell 05704-A-0121?The non-inductive rating is 5 A at 110 or 250 Vac.
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What DC contact rating is documented for Honeywell 05704-A-0121?The non-inductive rating is 5 A at 32 Vdc.
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What power demand is listed for Honeywell 05704-A-0121?The manual lists 1 W typical and 1.7 W maximum.
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Which field conductor size is documented for Honeywell 05704-A-0121?The field terminals accept up to 2.5 mm2 or 14 AWG.
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Why must inductive loads be reviewed for Honeywell 05704-A-0121?The published contact ratings are non-inductive, so suppression and derating may be required.
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What completes commissioning of Honeywell 05704-A-0121?Exercise all four changeover contacts, confirm latch and coil logic, and witness the connected alarm or shutdown response.
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