12 in stock
Honeywell RM7890A1056 Burner Control Modules
Honeywell RM7890A1056 Burner Control Modules
Brand/Manufacturer: Honeywell
Order Number: RM7890A1056
Type: Burner Control Modules
Country of Origin: Sweden
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
-
In-stock & ready for fast delivery. Shipping policy.
-
We’re here for you 24/7 ,Contact Us.
-
Only genuine, factory-sealed products，Learn More.
-
Refund Supported Within 30 Days, help.
-
All purchases include a 1-year warranty, help.
Trusted Global Payment Methods
Description
The Honeywell RM7890A1056 serves as the primary RM7890A1056 Relay Module utilized to execute on-off primary control and safety sequencing across 7800 SERIES automatically fired single-burner platforms. The unit mounts to a standard wiring subbase to directly actuate intermittent pilot ignition, monitor pre-ignition interlocks, manage selectable pilot flame establishing periods, and operate programmable Valve Proving Systems (VPS) for gas, oil, or combination fuel burner configurations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | RM7890A1056 |
| 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 Type | Intermittent |
| Pilot Flame Establishing Period | 4 s or 10 s |
| Integrated Features | Pre-ignition Interlock Monitoring, Programmable VPS |
Process Control and DCS Interface Features
The module features dynamic channel-to-channel isolation between low-voltage micro-ampere flame sensor inputs and line-voltage heavy-duty relay outputs. Process parameters, system status, lockout diagnostics, and flame signal telemetry transfer across the serial ControlBus communication architecture, enabling seamless data integration into host DCS and PLC network architectures without degrading the safety loop isolation performance.
Frequently Asked Questions
Q: Does the RM7890A1056 require an external plug-in purge card for operation?
A: No, the RM7890A1056 operates as an on-off primary burner control without requiring an ST7800 purge card, but still requires a plug-in flame signal amplifier and Q7800 subbase.
Q: How is the Valve Proving System (VPS) feature configured on the RM7890A1056?
A: The integrated VPS function is programmed via an optional S7800 Keyboard Display Module connected directly to the front ControlBus port of the relay module.
Field Installation Guidelines
- Lock out and isolate all 120 VAC incoming power feeds prior to seating or removing the module from the Q7800 wiring subbase.
- Verify subbase card-edge slots are clean and correctly wired in compliance with local electrical safety standards.
- Align the rear terminal block pins straight into the subbase socket and tighten the central captive retaining screws to ensure proper ground contact and vibration resistance.
- Maintain a minimum clearance distance of 150 mm between low-voltage flame sensor lines, serial ControlBus cables, and high-voltage ignition leads.
Have a Question?
-
Focus on Benefits:
We focus on what truly matters to industrial buyers — authentic products, reliable stock, and fast global delivery. Explore how we support your operations with trusted sourcing and expert service.
-
Why You Can Trust Us:
We go beyond parts — delivering reliability, speed, and expertise trusted by industrial buyers worldwide.
-
Trusted by Global Clients
Serving thousands of companies across oil & gas, power, manufacturing, and more — from Fortune 500 enterprises to local distributors.
-
Uptime Is Our Priority
Downtime is costly. That’s why we ensure rapid access to critical parts, minimizing production interruptions and delays.
-
Experts in Sourcing Rare Parts
Our team specializes in finding hard-to-source and obsolete components — saving you time, risk, and procurement headaches.
-
One-Stop Automation Supply
We offer complete automation part solutions — PLCs, drives, sensors, HMIs, relays — with expert guidance every step of the way.
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