Citel DS44-400/G SPD, type 2, 4-pole, 230/400V, 20kA

Product Overview

The DS44-400/G is a Type 2 AC surge protector designed for primary protection of 3-phase+Neutral networks at the main electrical panel in 230/400V applications. This multipolar SPD features hybrid MOV+GDT technology providing both common mode and differential mode protection with pluggable modules for each phase and optional remote signaling capability.

Key Features:

• Hybrid MOV+GDT Technology: Combines metal oxide varistor and gas discharge tube for enhanced surge suppression with zero leakage current
• Dual Mode Protection: Provides both common mode and differential mode protection
• Modular Design: Individual pluggable modules for each phase allowing easy maintenance and selective replacement
• High Discharge Capacity: 20kA nominal discharge current with 40kA maximum total discharge current (8/20μs)
• Thermal Protection: Integrated thermal disconnectors with visual failure indicators
• Remote Signaling Option: Optional DS44S-400/G version available with changeover contact
• TOV Performance: 770Vac temporary overvoltage disconnection threshold
• Flexible Connection: Screw terminals (2.5-25mm²) or bus bar connection options

Technical Specifications:

• Article Number: DS44-400/G (Part Number 461412)
• Protection Type: Type 2 AC surge protector
• Configuration: 3-phase+Neutral (4-pole)
• Network Voltage: 230/400V 3-phase+N
• Max. AC Operating Voltage: 440Vac
• Nominal Discharge Current (In): 20kA per pole (8/20μs)
• Max. Discharge Current (Imax): 40kA per pole (8/20μs)
• Residual Current: None (zero leakage)
• Short-Circuit Current Rating: 25,000A
• Dimensions: 67mm (H) x 90mm (W) x 18mm (D)

Compatible Accessories:

• Remote Signaling Version: DS44S-400/G (Part Number 461432)
• Common Mode Only: DS44-400
• Voltage Variants: DS44-230/G (230V), DS44-280/G (280V), DS44-320/G (320V)
• Updated Models: DAC50-31-440, DAC50S-31-440

Compliance & Certifications:

• Standards: IEC 61643-11, EN 61643-11, UL1449 Edition 5, CSA
• Certifications: TÜV Süd, EAC
• Environmental: RoHS compliant

Applications:

Essential for primary surge protection in three-phase main electrical panels of commercial buildings, industrial facilities, manufacturing plants, data centers, office complexes, hospitals, and any 230/400V three-phase+Neutral electrical distribution system requiring Type 2 protection with both common and differential mode capabilities, modular phase protection, and optional remote monitoring.