Honeywell 05704‑A‑0121 System 57 Quad Relay Interface Card

Description

Product Overview

The Honeywell 05704‑A‑0121 quad relay interface card is a plug‑in relay output board dedicated for Honeywell Zellweger System 57 / 5704 multi‑channel fire‑and‑gas safety‑monitoring rack system. It works paired with four‑channel gas control card, providing four groups of independent relay dry‑contact outputs. It receives alarm, fault and inhibit logic signals from four‑channel control card via D‑sub connector, and switches relay contacts to drive external alarm horns, beacons and remote annunciator panels. Equipped with orange quick‑release terminal block for convenient field‑cable wiring. Hot‑swap capable; card replacement will not shut down other working channels inside the rack. Widely applied for spare‑part replacement and maintenance of legacy System 57 gas‑detection cabinets for petrochemical, refinery and offshore‑platform hazardous‑area sites.

Series

System 57 / 5704 modular fire‑and‑gas safety‑monitoring hardware platform by Honeywell Zellweger Analytics. The rack‑based system consists of multi‑channel gas‑control cards, quad relay interface cards, expansion relay cards, field‑interface cards, power‑supply cards and sub‑rack chassis for continuous toxic‑gas and combustible‑gas safety‑monitoring for industrial hazardous‑location cabinetsHoneywell ….

Product Features

1. Four independent configurable relay output channels for alarm, fault and inhibit status signal output
2. Dry‑contact relay design, isolates rack internal circuit from external field load wiring
3. D‑sub connector for signal communication with matched four‑channel gas‑control card
4. Orange plug‑in screw terminal block, fast field‑cable connection and convenient wiring maintenance
5. Supports flexible relay function assignment for A1/A2/A3 alarm, system fault or inhibit status
6. Hot‑swap plug‑in card design, single‑card replacement does not affect operation of other rack channels
7. Compact PCB plug‑in structure, fits System 57 standard sub‑rack chassis
8. Industrial‑grade component layout, designed for long‑term 24‑hour continuous‑operation in safety‑monitoring cabinets
9. Can cooperate with expansion relay card to realize more relay output capacity for large‑scale gas‑monitoring systemHoneywell …

Product Parameters

表格

Product Specifications

• Physical form: Plug‑in PCB relay interface card for System 57 sub‑rack
• Condition: New surplus / Tested used (stock subject to real‑time confirmation)
• Warranty: 365‑day warranty for supplied units
• Shipment: In‑stock goods ship within 3 working days after payment

Function

Receives alarm, fault and inhibit logic commands from four‑channel gas‑control card; controls four‑group relay contact on‑off action; outputs isolated dry‑contact signals to drive external audible‑visual alarm equipment; completes field‑cable termination via plug‑in terminal block; supports online hot‑swap replacement.

Purpose

Provide configurable multi‑channel hard‑relay output function for Honeywell System 57 / 5704 four‑channel gas‑detection control card, realize on‑site alarm triggering and remote status‑signal transmission for fire‑and‑gas monitoring system.

Application Fields

‑ Petrochemical‑plant System 57 gas‑detection‑cabinet spare‑part‑replacement‑ Oil‑gas‑site and offshore‑platform legacy fire‑and‑gas‑monitoring‑system maintenance‑ Refinery hazardous‑area gas‑monitoring‑rack retrofits‑ Chemical‑plant Honeywell Zellweger System 57‑system overhaul‑projects‑ Hazard‑process‑industrial‑site fixed‑gas‑safety‑monitoring‑cabinet‑repair‑ Marine‑platform fire‑and‑gas safety‑monitoring‑system spare‑parts

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Contact info

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