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ADVR-250

ADVR-250
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ADVR-250

Product catalog summary
Overview
The document provides technical specifications and features of the ADVR-250, a hybrid analog/digital automatic voltage regulator by Kutai Electronics Industry Co., Ltd. It is compatible with Leroy Somer R250/R230 AVR models.
Features
  • Compact, robust design with high reliability.
  • Innovative heat sink for improved cooling efficiency.
  • Load Acceptance Module (LAM) protection.
  • Soft start voltage ramping and over-excitation protection.
  • Digital low-frequency protection to prevent thermal drift.
  • EMI suppression and built-in high capacity fuse.
Specifications
  • Sensing Input Voltage: 85 to 140 Vac, 1 phase 2 wire.
  • Frequency: 50/60 Hz with potentiometer setting.
  • Excitation Output: 120V 1 phase, continuous 63 Vdc 3.5A, max 110 Vdc 5A for 10 seconds.
  • Under Frequency Protection: Factory presets with knee points at 48 Hz for 50 Hz systems and 58 Hz for 60 Hz systems.
  • Voltage Regulation: Less than +/-0.5% with 4% engine governing.
  • Voltage Thermal Drift: Less than 3% at -40 to +70 °C.
  • Soft Start Ramp Time: 3 seconds +/-10%.
Physical Specifications
  • Dimensions: 140.0 (L) x 81.0 (W) x 46.0 (H) mm.
  • Weight: 300 g +/-2%.
  • Operating Temperature: -40 to +70 °C.
  • Storage Temperature: -40 to +85 °C.
  • Relative Humidity: Max. 95%.
  • Vibration: 5.5 Gs @ 60 Hz.
Accessories
  • M4L25 Screw x 4.
  • 6.35 mm Flag type Terminal x 1.
  • 6.35 mm connection PIN x 2.
See more

Catalog excerpts

ADVR-250-1

ADWR-25© Hybrid Analog/Digital 2 lines sensing Automatic Voltage Regulator 5Amp Compatible with Leroy Somer R250/R230 AVR • Compact size, robust and high reliability • Innovative heat sink significantly increases cooling efficiency • Load Acceptance Module (LAM) protection • Soft start voltage ramping • Over excitation protection • Digital low frequency protection circuit, prevents thermal drift • EMI suppression • Built-in high capacity fuse Physical Specifications 6.35 mm Flag type Terminal x 1 6.35 mm connection PIN x 2 *All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer. KUTAI ELECTRONICS INDUSTRY CO., LTD. TEL : +886-7-8121771 FAX : +886-7-8121775 Website : www.kutai.com.tw Headquarters : No.3, Ln. 201, Qianfu St., Qianzhen Dist., Kaohsiung City 80664, Taiwan

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.