Honeywell R4343E1014

Honeywell R4343E1014

Product Introduction
The R4343E1014 is a Honeywell flame safeguard relay designed for use with ultraviolet flame detectors in combustion systems. It monitors flame presence and provides switch outputs for alarm, shutdown, or interlock functions. The R4343E type is intended for use with UV flame detectors such as C7027, C7035, and C7044, and is commonly applied in gas- and oil-fired burner protection circuits.

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Description

Honeywell R4343E1014

Technical Specifications

  • Brand: Honeywell
  • Model: R4343E1014
  • Product Type: Flame safeguard relay / flame switch controller
  • Compatible Detectors: C7027, C7035, C7044 UV flame detectors
  • Supply Voltage: 115 VAC or 230 VAC depending on model; R4343E1014 is specified for 230 VAC, 50/60 Hz
  • Voltage Tolerance: +10% / -15%
  • Frequency: 50/60 Hz
  • Output Contacts: Two isolated SPDT contacts
  • Contact Rating: 2 A at 230 VAC, power factor 0.65
  • Flame Failure Response Time: Less than 1 second for standard models
  • Enclosure Rating: IP40
  • Ambient Temperature: -10 °C to +60 °C
  • Maximum Relative Humidity: 90% RH at +40 °C
  • Mounting: Plug-in module on surface-mounted base

Functional Features

  • Monitors UV flame signals from compatible detectors.
  • Provides two isolated SPDT switch outputs for alarm or shutdown.
  • Includes a flame current test jack for checking flame signal strength.
  • Provides ignition interference protection.
  • Fast flame failure response, typically under 1 second.
  • Plug-in design allows easy replacement without rewiring the base.
  • Suitable for gas- and oil-fired burner protection applications.

Application Scenarios

  • Industrial boiler flame monitoring.
  • Commercial burner flame safeguard circuits.
  • Gas-fired heating equipment.
  • Oil-fired combustion systems.
  • Burner control panels requiring UV flame detection.
  • Replacement of existing R4343E flame safeguard relays.

Performance Parameters

  • Compatible with Honeywell C7027, C7035, and C7044 UV flame detectors.
  • Provides two SPDT relay outputs for flame status indication.
  • Flame failure response time is less than 1 second for standard versions.
  • Operates on 230 VAC, 50/60 Hz for the R4343E1014 variant.
  • IP40 enclosure protects against solid objects larger than 1 mm.
  • Exact response time variants, certification marks, and electrical tolerances should be confirmed from the nameplate and official datasheet.

Material Composition

  • Plastic relay housing
  • Metal terminal block
  • Internal relay contacts
  • Printed circuit board
  • Flame signal amplifier circuit
  • Fuse protection for R4343E models
  • Test jack for flame current measurement
  • Mounting base with screw terminals

Structural Features

  • Compact plug-in relay module.
  • Designed for surface-mounted base installation.
  • Front panel includes a flame current test socket.
  • Terminal connections are made on the base, not the relay body.
  • Fixing screws secure the relay to the base after insertion.
  • Recommended vertical mounting to allow maintenance access.

Working Principle
The R4343E1014 receives a flame signal from a UV flame detector such as C7027, C7035, or C7044. When flame is detected, the internal amplifier validates the signal and energizes the relay outputs. If the flame signal is lost during operation, the relay de-energizes within less than 1 second, causing the SPDT contacts to change state. This change can trigger an alarm, shut down the fuel valve, or activate a safety interlock. The flame current test jack allows maintenance personnel to measure flame signal strength without removing the relay.

Installation Requirements

  • Disconnect power before installation or wiring.
  • Mount the base on a flat surface, preferably vertically.
  • Leave sufficient clearance for relay removal and maintenance.
  • Wire the base according to local electrical codes and burner manufacturer instructions.
  • Ensure correct supply voltage before inserting the relay.
  • Use only compatible UV flame detectors with the R4343E type.
  • Keep relay terminals insulated from high-voltage ignition cables.
  • Tighten all terminal screws after wiring.

Precautions for Use

  • Do not confuse live and neutral connections.
  • Do not connect supply power to the relay output terminals.
  • Ensure the flame detector is correctly aimed and installed.
  • Verify flame current using the test jack during commissioning.
  • Replace the internal fuse only with the specified rating for R4343E models.
  • Do not use R4343E1014 with rectified flame detectors unless specified.
  • Store spare relays in dry, clean, and non-corrosive environments.
  • Confirm exact voltage, response time, and certification from the device nameplate and official documentation.

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