12 in stock
Honeywell RM7897A1002 Burner Control Relay
Honeywell RM7897A1002 Burner Control Relay
Brand/Manufacturer: Honeywell
Order Number: RM7897A1002
Type: Burner Control Relay
Country of Origin: Sweden
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The Honeywell RM7897A1002, also cataloged as the RM7897A1002 Burner Control Unit, operates as a dedicated hardware component for safety sequence execution and interlock monitoring within 7800 SERIES burner control systems. The module interfaces directly with subbase wiring to control ignition, fuel safety shutoff valve timing, pilot flame establishing periods, and pre-ignition safety interlocks during automatic burner operational cycles.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | RM7897A1002 |
| Brand | Honeywell |
| Origin | USA / Mexico |
| Weight | 3.00 lbs (1.36 kg) |
| Dimensions | 127 mm x 127 mm x 133 mm (with Q7800 subbase) |
| Operating Temp | -40 deg C to +60 deg C |
| Power Consumption | 10 W nominal |
| Supply Voltage | 120 VAC (+10%, -15%), 50/60 Hz |
| Pilot Flame Establishing Period | Selectable 4 s or 10 s |
| Core Function | Flame Safeguard Sequencing and Interlock Safety Logic |
Process Control and DCS Interface Features
The module provides channel-to-channel isolation between low-voltage flame signal detection circuits and line-voltage heavy-duty output relays. Communication with high-level DCS platforms or programmable automation controllers is managed via the ControlBus serial port on the front face, allowing real-time retrieval of sequence execution state, flame voltage levels, and lockout history without introducing signal loading or safety circuit degradation.
Frequently Asked Questions
Q: How is the pilot flame establishing period configured on the RM7897A1002?
A: The choice between a 4-second or 10-second pilot flame establishing period is determined by terminal jumper configuration on the Q7800 subbase or module keypad setup.
Q: Is the RM7897A1002 operational as a standalone unit without auxiliary components?
A: No, the RM7897A1002 requires a compatible Q7800 wiring subbase, a plug-in flame signal amplifier module, and an ST7800 purge timer card for complete functionality.
Field Installation Guidelines
- Disconnect all primary AC power feeds before mounting or removing the relay module from the subbase header.
- Inspect subbase receptacle contacts to ensure complete mechanical alignment and freedom from dust or metallic particles.
- Tighten the central captive mounting screws until firmly seated against the subbase housing to maintain earth ground continuity.
- Route low-voltage flame sensor and ControlBus cables in separate conduit runs positioned at least 150 mm away from high-energy ignition cabling.
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Testimonials
Fast Delivery, Excellent Quality
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
Reliable Partner for Original Parts
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson