| Attribute | Value |
|---|---|
| Product Name | Deif RMP-112D Overload and Reverse Power Relay IP20 |
| Brand | Deif |
| Series | Uni-line |
| Type | RMP-112D |
| Order No. | 100158266.180 |
| Measuring Voltage | 100V, less than 0.5mA (Module 100V) |
| UL/cUL Voltage Rating | Max. 450VAC |
| Measuring Current | Module 3.0A |
| UL/cUL Requirement | Use Listed or R/C (XODW2.8) CT |
| Measuring Power | 600 W, Scale: 0.86 |
| Supply Voltage | 24V DC |
| UL Supply Rating | Only 24VDC (Class 2) and 110VAC |
| Coupling | 2W3 |
| Relay Outputs | Max. 250VAC or 24VDC, 8A Resistive |
| Analog Outputs | Max. 10V (If Present) |
| Relay B | Normally Energised |
| Relay C | Normally Energised |
| Safety Category | 600V CAT III |
| IP Rating | IP20 |
| Weight | 510 gm |
| Condition | Used – 1 Pc |
| Ref No. | 57963 |
What is the Deif RMP-112D Overload and Reverse Power Relay?
The Deif RMP-112D is an intelligent multifunctional relay applied to the protection of power systems from overload conditions and reverse power flow. Reverse power can be characterized when a generating set fails in generating power but starts to consume it. This usually occurs because of synchronization failure, mechanical malfunction, or loss of driving power.
The relay ensures fast, accurate detection of such abnormalities and triggers protective action to prevent equipment damage, system downtime, or costly repairs. Compact construction and IP20 protection make the RMP-112D suitable for installation in control panels, switchboards, and marine automation systems.
Key Features of Deif RMP-112D Relay
1. Overload Protection
Automatically detects overload conditions and protects generators and motors against thermal and electrical stress.
2. Reverse Power Detection
Prevents generators from entering motor mode, providing protection to engines and alternators during parallel operations.
3. Pre-set Functionability
The settings for tripping thresholds and delay times are fully customizable, thus enabling flexible integration across various power systems.
4. LED Status Indications
Clear LED indicators allow for fast visual diagnostics, making monitoring during operation or maintenance easy.
5. Compact IP20 Housing
It features an IP20-rated protection design, suitable for control cabinets and electrical panels located in controlled environments.
6. High Accuracy & Reliable Trips
Ensures stable performance even under fluctuating load conditions or sensitive synchronization applications.
7. Easy Installation & Wiring
User-friendly terminals and compact form factor simplify installation and reduce panel space.
8. Long Operational Life
Built for industrial and marine-grade durability, ensuring consistent performance over the years.
Applications of the Deif RMP-112D Relay
The Deif RMP-112D finds widespread applications in sectors where generator protection and power monitoring are considered crucial.
1. Marine Vessels & Ship Automation
- Protects shipboard diesel generators
- Prevents reverse power flow during parallel generator operation
- Supports onboard power management systems
2. Power Generation Plants
- Safe operation of backup generators
- Protection of turbine-driven and engine-driven alternators
3. Industrial Automation Systems
- Protection of motor loads, compressors, pumps, and other critical machinery
- Prevention of motorized generator operation
4. Renewable Energy Systems
- Protects hybrid power setups
- Maintains safe generator contribution in mixed-source grids
5. Commercial & Building Power Distribution
- Safeguards backup and emergency power generators
- Ensures reliable functioning of switchboards
6. Electrical Testing Panels
- Used in test benches and diagnostic set-ups for equipment protection
Why Choose the Deif RMP-112D Overload & Reverse Power Relay?
1. Proven Reliability from a Renowned Brand
DEIF is a global leader in marine and industrial power control solutions and is trusted for its reliability.
2. Dual Protection Functionality
It combines overload and reverse power protection, making it cost-effective and efficient in application because several separate relays are not required.
3. Ideal for Generator Synchronization Systems
This is especially beneficial for vessels and industries running multiple generators in parallel.
4. Ensures Safety & Minimizes Downtime
Accurate detection prevents damage to equipment and consequently saves very costly repairs, as well as avoids stops in operation.
5. Compact & Easy to Integrate
The IP20 construction and compact size enable applications in modern panels where the space is limited.
6. Long-Term Performance
It features a construction that is resistant to heavy-duty environmental and operational aspects, proving reliable for both marine and industrial installations.









