Description
Flame protection relay RA890F provides solid state, electronic flame safeguard protection for industrial and commercial single or dual fuel burners applications using rectification flame detectors. His design for interrupted ignition with intermittent pilot on gas burners, and interrupted or intermittent ignition on oil burners.
Model RA890F1288/U obsolete. Consult us for possible replacements with EC/RM7890
Specifications:
- Complete reference: RA890F1288, RA890F1304
- Recycles if flame signal lost while in Run. Failure to establish pilot results in a lockout.
- Safe-start check prevents start-up if flame-simulating failure occurs in flame detector circuit.
- Includes SPDT alarm contacts.
- Solid state circuitry.
- Mounts and removes easily through use of captive mounting screws.
- Mounting base is made of strong thermoplastic.
- Uses rectification principle of electronic flame detection
- Safe-start check prevents start-up if flame-simulating failure occurs in flame detector circuit.
- Includes SPDT alarm contacts.
- Solid state circuitry.
- Mounts and removes easily through use of captive mounting screws.
- Mounting base is made of strong thermoplastic.
- Uses rectification principle of electronic flame detection
- Replaces RA890E in most applications and mounts in the same Q270A1024 subbase.
- Dimensions:127 mm high x 127 mm wide x 121 mm deep (including subbase).
- Temperature Range: -29 ºC to +41 ºC.
- Alarm Relay Switching: SPDT.
- Temperature Range: -29 ºC to +41 ºC.
- Alarm Relay Switching: SPDT.
|
Reference |
Voltage |
Flame failure response time |
Safety switch time |
|
RA890F1288 |
120V |
3 s |
15 s |
|
RA890F1304 |
220V |
0.8 s |
15 s |
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