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The R4348B is a flame switch for continuous operation to indicate presence or absence of a flame and to be applied in large commercial or industrial burner installations.
The R4348B includes a 3-pole flame relay which is energized when flame is sensed and de-energized when "no-flame" is sensed as well as a 3-pole line voltage "load relay". For all type of burners with unlimited capacity.
Approvals
CE approved according EN298 (for continuous operation)
Protection class IP40
Ambient temperature -20 ... 60 oC
Maximum humidity 90 %rh
Note Order mounting/wiring sub base separately.
Outputs 3xSPST + 2xDPDT
Operation Flame switch
Flame failure response time 1,0/2,0s
Flame detector Depends on plug-in amplifier
Additional description
R4348B provides potential free relay outputs enable Honeywell sensors and amplifiers to be used with a wide range of logic circuits according to customer needs, including a Safe Start function which checks if a flame signal is present at burner start.
Accepts all flame rods or all Honeywell C7012, C7027, C7035, C7044, C7061 and C7076 optical flame detectors, by selecting the correct plug-in flame amplifier.
The R4348B (with rectification amplifier) will operate also with the "former Satronic" IRD1020 range of infrared sensors. Note that this combination is NOT CE approved for use in installations that fall under the GAD (Gas Appliances Directive).
All models
CommentTypeDownloads
  TXTPDF
Standard ModelR4348B1008 TXT
PDF
Installation/mounting instruction (English) Certificate (English) Certificate (English)
Enhanced model with LED meter and 4-20mA outputR4348B1057 TXT
PDF
Installation/mounting instruction (English) Certificate (English) Certificate (English)
Accessories
DescriptionAdditional Product TypeDownloads
 TXTPDF
Cable (ca. 250mm) with jack plug for remote 0..15 micro-ampere flame signal reading. For use with jack plug socket on the front of DBC2000 and R4343 or on plug-in amplifier of R4348.117053/U TXT
Mounting and wiring sub base for panel mount46176612-501 TXT
Applicable flame detectors, refer to specific chapter
DescriptionAdditional Product TypeDownloads
 TXTPDF
PurplePeeper UV detector, standard version. Intermittent operation._C7012A/G
PurplePeeper UV detector, self-checking version. Continous operation_C7012E/F
MiniPeeper UV detector, standard version. Intermittent operation._C7027A
MiniPeeper UV detector, with field replaceable UV tube and high temperature specification. Intermittent operation._C7035A
MiniPeeper UV detector, with side view option. Intermittent operation._C7044A
MiniPeeper self-checking UV detector. Continuous operation._C7061A/F
Special self-checking adjustable UV detector to detect flames from heavy oil, solid fuels and dirty gases. Continuous operation._C7076A/F
Applicable flame amplifiers.
DescriptionAdditional Product TypeDownloads
 TXTPDF
UV plug-in amplifiers with Self-Check, for use with C7061A/F UV flame sensors. Purple coulour. Response time 1 sec, max.R7061A1008 TXT
UV plug-in amplifiers with Self-Check, for use with C7061A/F UV flame sensors. Purple coulour. Response time 2 sec, max.R7061A1016 TXT
Rectification plug-in amplifiers with Ampli-Check, for use with flame rod and C7012A/G UV flame sensors. Green colour. Response time 2..4 sec. R7247B1029 TXT
Rectification plug-in amplifiers with Ampli-Check, for use with flame rod and C7012A/G UV flame sensors. Green colour. Response time 2 sec, max.R7247B1037 TXT
Rectification plug-in amplifiers with Self-Check, for use with C7012E/F self-checking UV flame sensors. Green colour. Response time 2..4 sec.R7247C1001/U TXT
Rectification plug-in amplifiers with Self-Check, for use with C7012E/F self-checking UV flame sensors. Green colour. Response time 2 sec, max.R7247C1019/U TXT
Rectification plug-in amplifiers for use with flame rod or C7012A/G UV flame sensors. Green colour. Response time 1 sec, max.R7321A1012 TXT
UV plug-in amplifiers for use with C7027, C7035 or C7044 UV flame sensors. Purple coulour. Response time 1 sec, max.R7323A1020 TXT
UV plug-in amplifiers with Self-Check, for use with C7076A/F UV flame sensors. Blue colour. Response time 2..4 sec.R7476A1007/U TXT
UV plug-in amplifiers with Self-Check, for use with C7076A/F UV flame sensors. Blue colour. Response time 2 sec, max.R7476A1015/U TXT
7800-series functional replacement of R4348 flame switches

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7800-SERIES
DescriptionAdditional Product TypeDownloads
 TXTPDF
"Trade" version. Replaces all R4348A/B models when used in 220-240Vac burner systems. Refer to the 7800-series section of this catalogue to select the correct flame amplifier, sub base and optional remote data communication accessories. Provides 2x SPDT contacts. CE/UL/FM approved and SIL 3 rated. EC7823A1004/U TXT
PDF
Specification sheet (English)
"OEM" version, needs Q7800A2005/U or Q7800B2003/U sub base. Replaces all R4348A/B models when used in 220-240Vac burner systems. Refer to the 7800-series section of this catalogue to select the correct flame amplifier, sub base and optional remote data communication accessories. Provides 2x SPDT contacts. CE/UL/FM approved and SIL 3 rated. EC7823A2004/U TXT
PDF
Specification sheet (English)
"Trade" version. Replaces all R4348A/B models when used in 110-120Vac burner systems. Refer to the 7800-series section of this catalogue to select the correct flame amplifier, sub base and optional remote data communication accessories. Provides 2x SPDT contacts. CE/UL/FM approved and SIL 3 rated. RM7823A1016/U TXT
PDF
Specification sheet (English)
"OEM" version, needs Q7800A2005/U or Q7800B2003/U sub base. Replaces all R4348A/B models when used in 110-120Vac burner systems. Refer to the 7800-series section of this catalogue to select the correct flame amplifier, sub base and optional remote data communication accessories. Provides 2x SPDT contacts. CE/UL/FM approved and SIL 3 rated. RM7823A2016/U TXT
PDF
Specification sheet (English)