The ABB DAPU100 3ASC25H204 is a precision digital measuring relay for power systems. It provides accurate monitoring and protection for generators, motors, and feeders. This versatile unit belongs to the trusted ABB DAPU 100 relay series.
Advanced Protection and Measurement Capabilities
This relay continuously measures key electrical parameters like current and voltage. It then executes complex protection logic based on user-defined settings. Engineers designed the 3ASC25H204 for demanding utility and industrial applications. Consequently, it ensures high availability and safeguards expensive electrical assets.
Detailed Technical Specifications
The following table outlines the core technical parameters of this digital relay.
| Specification Category | Technical Detail |
|---|---|
| Manufacturer & Series | ABB – DAPU 100 Series |
| Model | DAPU100 3ASC25H204 |
| Device Type | Digital Measuring & Protection Relay |
| Housing Dimensions | Standard 19-inch rack mount or panel mount form factor |
| Approximate Weight | 4.5 kg (9.9 lbs) — includes housing and internal components |
| Power Supply Input | Wide-range AC/DC supply, e.g., 24-250 VAC/VDC (confirm via datasheet) |
| Analog Inputs | Multiple current (1A/5A) and voltage (100-120V/220-240V) terminals |
| Binary I/O Interface | Several programmable digital input and output contacts |
| Communication Ports | Front USB, rear RS485, or Ethernet for configuration and SCADA |
| Internal Components | High-performance CPU, memory, A/D converters, and relay outputs |
| Measurement Accuracy | High precision class for current and voltage (e.g., Class 0.5) |
| Energy Storage | Internal supercapacitor or battery for fault recording and clock backup |
Core Functionality and Key Features
The DAPU100 3ASC25H204 performs multiple protection functions simultaneously. These include overcurrent, earth fault, voltage, and frequency protection. Furthermore, it provides detailed metering data like power, energy, and harmonics. The relay stores oscillographic fault records for detailed event analysis.
Application and Integration Value
This ABB relay is ideal for switchgear, transformer, and generator protection panels. Its flexible communication protocols enable easy integration into modern control systems. Technicians can configure it using ABB’s dedicated software tools. Ultimately, the DAPU100 3ASC25H204 delivers reliable protection that minimizes downtime and operational risk.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 234 × 108 × 18 mm |
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