Overview
The Honeywell RA890G1260 is a solid-state Protectorelay primary flame safety control designed for industrial and commercial burner applications. This proven control continuously monitors burner flame using ultraviolet (UV) flame detection, photocell, or flame rod sensing, providing reliable electronic safeguard protection for gas, oil, or combination fuel burners. The RA890G1260 features a push-to-reset safety switch in a dust-resistant thermoplastic enclosure and eliminates the need for vacuum tube replacement common in older relay designs.
Key Features
- Solid-state circuitry eliminates warm-up time and increases vibration resistance
- 15-second safety switch timing with 3-second flame failure response for rapid fault detection
- SPDT (Single Pole Double Throw) alarm contacts for external alarm signaling and integration with building management systems
- Safe-start protection prevents startup if flame simulation fails in the detector circuit
- Ignition crossover protection built-in for enhanced burner safety on flame rod systems
- Recycling operation reattempts flame establishment once before lockout on signal loss
Technical Specifications
- Input Voltage: 120 VAC, 50/60 Hz
- Safety Switch Timing: 15 seconds
- Flame Failure Response Time: 3 seconds
- Alarm Contacts: SPDT (Single Pole Double Throw)
- Control Circuit Rating: 0.17A
- Base Material: Thermoplastic
- Weight: 2.70 lbs
- Dimensions: Approximately 5 x 5 x 5 inches (127 x 127 x 122 mm)
- Operating Temperature Range: -20°F to +115°F (-29°C to +46°C)
- Flame Detection Method: Ultraviolet (UV), flame rod, or photocell compatible
- Mounting: Q270A and Q270A1024 subbase compatible
- Product Type: Solid-State Protectorelay Primary Control
Typical Applications
- Commercial and industrial gas burner flame safety supervision
- Oil burner primary flame control with interrupted or intermittent ignition
- Combination gas-oil burner systems requiring dual-fuel capability
- Building heating systems requiring HVAC compliance and safe-start verification
- Industrial process heating with UV flame detection integration
Compatibility & Replacements
Compatible With
- C7027, C7035, or C7044 ultraviolet (UV) flame detector modules
- Q270A and Q270A1024 mounting subbases
- Flame rod or photocell flame detection sensors
- Single or dual burner management systems
- Industrial building automation and fire safety networks
- Interrupted ignition with intermittent pilot gas burners
- Standing pilot burner systems (with optional 5004-890-S000 jumper wire configuration)
Replaces / Drop-In Replacement For
- RA890E (mounts on same Q270A1024 subbase)
- Earlier Honeywell vacuum-tube flame safeguard controls requiring modernization
Works With
- SPDT alarm contact networks for facility management alarm integration
- Honeywell Specification R1061012 Ignition Cable and equivalent high-temperature ignition wiring
- Low voltage control circuits with 0.17A control circuit rating
- Direct wiring to burner management and HVAC control systems
- Pressure sensing and limit switch circuits for boiler safety applications
