Description

DECS‑250‑CN1CN1N Digital Excitation Controller

Technical Specifications

• Product Model: DECS‑250‑CN1CN1N
• Brand: Basler Electric
• Warranty: One Year
• Input Voltage: 85‑265 V AC auxiliary power
• Operating Temperature: ‑40 °C ~ +65 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Excitation regulation response ＜20 ms
• Protection Class: IP20 panel‑mount housing
• Accuracy Class: ±0.5 % FS generator voltage regulation grade
• Output Frequency: 50 / 60 Hz adaptive
• Rated Current: Excitation output rated 7 A continuous
• Control Functions: Automatic voltage regulation, manual control, under‑excitation / over‑excitation limiting
• Interfaces: Analog I/O, digital relay outputs, RS485 communication port
• Protection: Over‑voltage, loss‑of‑field, over‑excitation protection
• Indicators: LED status and fault indication
• Mounting: Cabinet panel mounting
• Certifications: CE, UL
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 1.7 kg
• Dimensions: 220 × 160 × 65 mm
• 

Product Overview

DECS‑250‑CN1CN1N is a digital generator excitation regulator from Basler DECS‑250 series. It provides automatic voltage regulation for synchronous generators, supporting multiple limiting and protection functions for generator‑set safety operation. Communication interface allows remote parameter configuration and real‑time status monitoring. Widely applied for diesel‑generator, hydro‑generator and backup‑power‑unit excitation control. Available as refurbished and new‑old‑stock spare parts for power‑generation‑equipment maintenance.

Application Notes

‑ Verify excitation output rating matches generator field winding parameters. ‑ Isolate auxiliary power source from generator main circuit. ‑ Disconnect power supply before performing hardware service. ‑ Typical deployment: diesel generator sets, hydropower stations, standby power‑plant spare‑part stocking.