Honeywell 05701-A-0325
Honeywell 05701-A-0325
Honeywell 05701-A-0325
Honeywell 05701-A-0325
Honeywell 05701-A-0325
Honeywell 05701-A-0325
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  • Lifecycle status

    Discontinued / Obsolete by OEM
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05701-A-0325

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Honeywell 05701-A-0325 is a System 57 DC input card for fused, diode-isolated primary and auxiliary 24 V DC distribution to the Engineering Card and rack backplane.
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Technical specifications for 05701-A-0325

  • Manufacturer:
    Honeywell
  • Part Number:
    05701-A-0325
  • Product Family:
    Honeywell 5701 Control System
  • Product Type:
    DC Input Card
  • Stock:
    1
  • Control system:
    System 57
  • Compatible sub-racks:
    5701, 5704 and 5704F
  • Card function:
    DC power entry and distribution
  • Nominal supply:
    24 V DC
  • External connection:
    Removable two-part TB1
  • TB1 terminal capacity:
    12 terminals
  • Source inputs:
    Primary PSU plus auxiliary / standby supply
  • Input isolation:
    Diode-isolated supply paths
  • Load-source rule:
    Higher-voltage source normally supplies the load
  • Current sharing:
    Can occur with suitable parallel sources
  • Pass-through wiring:
    Site PSU and auxiliary supply pairs
  • Rack power path:
    Engineering Card and rack backplane
  • Ancillary output:
    Fused +24 V and 0 V pair
  • Output fuse:
    FS1, 10 A
  • Electrical protection:
    Reverse-polarity protection
  • Interference protection:
    RFI filtering
  • Engineering option interface:
    TB2, six terminals
  • Supported option roles:
    Modbus, event printing or alarm update
  • Backplane current limit:
    8 A maximum
  • 5704 catalytic threshold:
    More than eight cards requires distributed power
  • High-card-count routing:
    Via associated Quad Relay Interface Cards
  • Protective earth:
    Dedicated TB1 earth connections
  • Weight:
    0.3307 lbs (0.15 kg)
  • Estimated shipping dimensions:
    130 x 118 x 18 mm
  • Tariff Code:
    Please confirm the destination before shipping.
  • 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 Applications Power Distribution Protection Installation & Integration

Features:

  • Designed as the DC power-entry card for Honeywell System 57 5701, 5704 and 5704F sub-racks.
  • Provides separate site-supply and standby-battery paths through a removable TB1 terminal block.
  • Connects rack power and supported Engineering Card plug-in options through dedicated interfaces.
05701-A-0325 is the System 57 DC input card that accepts the rack power connections through its removable terminal block.

The card accepts the normal site supply and a separate auxiliary or standby source, then distributes protected DC to the Engineering Card, backplane and approved ancillary loads.

Before replacement, verify the installed sub-rack, TB1 wiring, connected load, fuse coordination and any Engineering Card option that uses the TB2 interface.

Availability and delivery are confirmed at quotation. Provide the complete 05701-A-0325 label and installed-system details.
Verified resources for Honeywell 05701-A-0325: 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.
  • Combines reverse-polarity protection, RFI filtering and fused distribution for the System 57 rack power path.
  • Supplies approved ancillary equipment from the fused +24 V and 0 V output within the calculated installation power budget.
  • Provides the six-terminal TB2 connection used by supported Engineering Card plug-in options.
  • Primary and auxiliary inputs are diode-isolated so the higher-voltage source normally carries the load.
  • Pass-through pairs allow the corresponding site and auxiliary supply conductors to continue to another connection point.
  • Protected DC is routed through the Engineering Card and backplane to the installed control cards.
  • Reverse-polarity protection helps protect the card from an incorrectly connected DC source.
  • RFI filtering is incorporated in the incoming power path for the System 57 rack.
  • FS1 provides 10 A protection for the auxiliary +24 V and 0 V output pair on TB1.
  • TB1 terminals 1 and 2 provide the designated system-earth connections for the rack installation.
  • The six-terminal TB2 interface is reserved for supported Engineering Card plug-in options.
  • Where a 5704 rack contains more than eight catalytic cards, use the power arrangement specified for the associated Quad Relay Interface Cards.
Description
05701-A-0325 is the Honeywell System 57 DC Input Card used to bring nominal 24 V DC power into a 5701, 5704 or 5704F sub-rack through the removable TB1 terminal block.

The card accepts primary and auxiliary supply paths, isolates them with diodes, distributes protected power through the Engineering Card and backplane, and provides a fused output for approved ancillary equipment.

Before replacement, calculate the rack power budget and verify polarity, earth bonding, fuse coordination, standby-battery wiring, TB2 option use and the 8 A backplane-current boundary.
Alternative Names
05701-A-0325 Honeywell 05701-A-0325 Honeywell Analytics 05701-A-0325 Honeywell System 57 05701-A-0325 05701-A-0325 DC Input Card Honeywell 05701 A 0325 05701A0325 System 57 DC Input Card 05701-A-0325
Technical notes
05701-A-0325 requires compatible PSU/AUX sources for parallel connection; disconnect TB1 before measuring input voltage or checking FS1.
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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.
Why does Honeywell 05701-A-0325 provide separate PSU and AUX input pairs?
The two input paths allow a site power supply and a standby battery supply to be connected through diode isolation. The higher-voltage source normally carries the load, and current can be shared in some conditions.
Which TB1 terminals should be used for primary and standby power on Honeywell 05701-A-0325?
Connect the primary 24 V DC source to terminals 12 and 11. Connect the standby auxiliary source to terminals 8 and 7; terminals 10/9 and 6/5 provide the corresponding through-wiring pairs.
How should the fused ancillary output of Honeywell 05701-A-0325 be assessed?
The combined output is available at TB1 terminals 4 and 3 through 10 A fuse FS1. The complete rack and ancillary-device power budget must remain within the installation limits.
What does TB2 do on Honeywell 05701-A-0325?
TB2 is a six-terminal interface for supported Engineering Card plug-in options. Its terminal functions depend on whether the installed option is Modbus, event printing or alarm update hardware.
When should Honeywell 05701-A-0325 avoid carrying the full 5704 rack load?
For installations with more than eight 5704 catalytic cards, Honeywell recommends powering the control cards through their associated Quad Relay Interface Cards and using 05701-A-0325 for the Engineering Card only.
What migration and quotation details are needed for obsolete Honeywell 05701-A-0325?
System 57 has reached end of life and Honeywell does not identify a drop-in card replacement. Touchpoint Plus or Touchpoint Pro is a system-level migration; send rack, supply, load, terminal and nameplate details for review and quotation.