Eaton Relay-MS Remote Power Management Adapter - Mini Slot - Serial & Relay Interface
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Product Overview
The Eaton RELAY-MS Remote Power Management Adapter is a dedicated interface card designed to enhance the monitoring and control capabilities of compatible Eaton uninterruptible power supply (UPS) systems. It installs into the Mini Slot expansion interface on supported UPS models, providing both serial and relay connectivity for external systems.
This adapter enables advanced power management by communicating UPS status information to alarm systems, programmable logic controllers (PLCs), or PCs. It supports automatic shutdown functions triggered by external contacts or voltage levels, helping to protect connected equipment during power events. The RELAY-MS is engineered for reliability in commercial and industrial environments where power continuity is critical.
Relevant factors for this section include Proprietary Slot Type, Management, Serial. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Technical Overview
The RELAY-MS adapter integrates directly into the Mini Slot expansion interface on compatible Eaton UPS units. It provides an RS-232 serial connection through a standard DB9 connector for direct communication with monitoring software or control systems. Simultaneously, it offers dry contact relay outputs that can signal UPS status changes to external alarm panels or automation systems.
This dual-interface approach allows for flexible integration into existing infrastructure. The serial interface enables detailed UPS parameter monitoring and configuration, while the relay contacts provide simple, reliable status indication for basic alarm systems. The adapter supports automatic shutdown functionality that can be activated by external contact closure or specific voltage thresholds, providing layered protection for connected equipment.
Relevant factors for this section include Proprietary Slot Type, Management, Serial. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The RELAY-MS adapter delivers reliable power management capabilities through its robust design and flexible interface options. Its compatibility with multiple Eaton UPS series ensures broad applicability across different power protection scenarios, from server rooms to industrial control environments.
Hot-Swappable Installation
Install the RELAY-MS adapter on compatible Eaton UPS systems without requiring system shutdown or restart. This feature minimizes downtime during deployment or maintenance, keeping critical equipment protected throughout the installation process.
- No UPS restart required
- Minimal service interruption
- Simplified maintenance procedures
Dual Interface Flexibility
Combine RS-232 serial communication with dry contact relay outputs for comprehensive monitoring options. The serial interface provides detailed data exchange with monitoring software, while the relay contacts offer simple, reliable status indication to external systems.
- RS-232 for detailed monitoring
- Dry contacts for basic alarms
- Simultaneous interface operation
Deployment / Use Cases
The RELAY-MS adapter is particularly valuable in environments where power continuity monitoring is essential for operational reliability. Its ability to communicate UPS information to both sophisticated monitoring systems and basic alarm panels makes it suitable for diverse deployment scenarios with varying monitoring requirements.
Data Center Monitoring
Integrate the RELAY-MS adapter with Eaton 5PX G2 or 9SX UPS systems in server environments to provide comprehensive power monitoring. The serial interface connects to network management systems for detailed UPS status reporting, while relay contacts can trigger audible alarms or visual indicators for immediate attention during power events.
- Server room power monitoring
- Network management integration
- Immediate alarm notification
Industrial Control Systems
Deploy in manufacturing or process control environments where Eaton UPS systems protect critical automation equipment. The dry contact outputs interface directly with PLC systems to signal power status changes, while the serial connection enables logging and historical analysis of power quality events.
- PLC system integration
- Power event logging
- Process continuity protection
Highlights
- Installs into Mini Slot interface on compatible Eaton UPS systems
- Provides RS-232 serial communication via DB9 connector
- Includes dry contact relay outputs for external signaling
- Supports automatic shutdown triggered by external contacts or voltage levels
- Communicates UPS status to alarm systems, PLCs, or PCs
- Hot-swappable installation without UPS shutdown requirement
- Compatible with Eaton 5P, 5PX G2, 9PX, 9PXM, 9SX, and 93E UPS series
- Backed by 2-year limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | Eaton Corporation |
| Manufacturer Part Number | RELAY-MS |
| Brand Name | Eaton |
| Product Name | Remote Power Management Adapter |
| Product Type | Remote Power Management Adapter |
| Technical Information | |
| Proprietary Slot Type | Mini Slot |
| Management | Automatic Shutdown & Network Monitoring,Automatic Shutdown |
| Interfaces/Ports | |
| Serial | Yes |
| Miscellaneous | |
| Compatibility | Eaton UPS Series: 5P 5P 5PX G2 9PX 9PXM 9SX 93E |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
Which Eaton UPS models are compatible with the RELAY-MS adapter?
The RELAY-MS adapter is compatible with several Eaton UPS series including 5P, 5PX G2, 9PX, 9PXM, 9SX, and 93E models. These UPS systems feature the Mini Slot expansion interface required for adapter installation. Compatibility ensures the adapter can provide monitoring and shutdown functions across different Eaton power protection platforms in commercial and industrial applications.
What interfaces does the RELAY-MS adapter provide for external connectivity?
The adapter offers dual interface options: an RS-232 serial connection through a standard DB9 connector and dry contact relay outputs. The serial interface enables detailed communication with monitoring software or control systems for UPS parameter access and configuration. The relay contacts provide simple open/close signaling for integration with alarm panels, PLCs, or other external devices that require basic status indication.
Can I install the RELAY-MS adapter without shutting down the UPS?
Yes, the RELAY-MS adapter supports hot-swappable installation on compatible Eaton UPS systems. This means you can insert the adapter into the Mini Slot interface without powering down the UPS or interrupting power to connected equipment. This feature minimizes service disruption during deployment or maintenance, maintaining continuous power protection throughout the installation process.
How does the automatic shutdown function work with this adapter?
The automatic shutdown function can be activated through two methods: external contact closure or specific voltage level detection. When an external contact connected to the relay interface closes, or when the UPS detects a predefined voltage threshold, the adapter signals the UPS to initiate an orderly shutdown of connected equipment. This helps protect systems from data loss or hardware damage during extended power outages or other electrical events.
What type of information can the RELAY-MS adapter communicate to external systems?
The adapter communicates comprehensive UPS status information including input voltage, output voltage, battery status, load level, and event notifications. Through the serial interface, detailed parameter data is available for monitoring software integration. The relay contacts provide simplified status indications such as power failure, low battery, or overload conditions, making the adapter suitable for both sophisticated monitoring systems and basic alarm panels.
What warranty coverage applies to the Eaton RELAY-MS adapter?
Eaton provides a 2-year limited warranty for the RELAY-MS Remote Power Management Adapter. This warranty covers defects in materials and workmanship under normal use conditions. The warranty period begins from the date of purchase and includes repair or replacement options for qualified claims, supporting reliable operation in power management applications.
| Qty | Price | Available |
|---|
