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Emerson 2840A18G02 Relay Output Cards
Emerson 2840A18G02 Relay Output Cards
Brand/Manufacturer: Emerson
Order Number: 2840A18G02
Type: Relay Output Cards
Country of Origin: Sweden
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The Emerson 2840A18G02, also cataloged as the 2840A18G02 Relay Output Card, operates as a dedicated hardware component for high-voltage discrete actuator switching within Ovation DCS Series QRO backplane structures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2840A18G02 |
| Brand | Emerson / Westinghouse |
| Origin | USA |
| Module Type | Relay Output Card (Series QRO) |
| Architecture | Ovation DCS |
| Maximum Voltage Rating | 250 VAC / 330 VDC |
| Diagnostics | Channel LED Status Indicators |
| Weight | 1.20 lbs (0.54 kg) |
| Dimensions | Standard Ovation Rack Card Form Factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 3.5 W at 24 VDC |
Galvanic Isolation & Signal Loop Processing
Designed for high-voltage discrete execution, the module features high-grade galvanic isolation to segregate internal backplane logic from field switching inductive spikes and line transients. Embedded LED status indicators deliver real-time visual feedback for each relay coil drive state. Built-in contact snubber networks suppress arc discharge across dry and wet relay interfaces during continuous high-voltage AC and DC switching loops.
Frequently Asked Questions
Q: Can the 2840A18G02 module be removed under power while high-voltage field loads are active?
A: Field power supplies feeding the relay contact terminals must be isolated prior to board removal to prevent electrical arcing across terminal contacts and maintain operator safety.
Q: What indicates active output execution on the front faceplate of the 2840A18G02?
A: Individual LED status indicators illuminate directly on the module faceplate when the controller logic energizes the corresponding channel relay driver circuit.
Field Installation Guidelines
- Power down the Ovation chassis backplane and disconnect external 250 VAC / 330 VDC field contact supplies before installing the module.
- Maintain strict ESD protection protocols, including a grounded wrist strap, when handling the printed circuit board assembly.
- Slide the card edge along the slot alignment tracks and seat the backplane multi-pin connector smoothly into the socket.
- Fasten top and bottom faceplate retention screws to ensure chassis earth ground continuity and vibration resistance.
- Route high-voltage AC/DC output contact wiring separately from low-level analog or communication cables, maintaining at least 300 mm clearance.
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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