Citel DAC50-40-530 SPD, type 2, 3P+N, 530VAC, 20kA

Product Overview

The DAC50-40-530 is a Type 2 AC surge protector designed for main switchboard protection of 3-phase+Neutral networks in 530V AC applications. This advanced pluggable SPD features high-energy metal oxide varistor (MOV) technology with 50kA discharge capacity, thermal disconnectors, visual failure indicators, and optional remote signaling capability for industrial and commercial electrical systems requiring higher voltage protection.

Key Features:

• High-Energy MOV Technology: Metal oxide varistor-based protection optimized for 530Vac applications
• High Discharge Capacity: 20kA nominal discharge current with 50kA maximum discharge per pole (8/20μs)
• Modular Pluggable Design: Individual plug-in modules for each phase allowing easy maintenance without system shutdown
• Thermal Protection: Integrated thermal disconnectors with visual failure indicators for standards compliance
• Remote Signaling Option: Optional DAC50S-40-530 version available with changeover contact for remote monitoring
• Enhanced Reliability: Improved design for maximum protection efficiency and impulse current capability
• Multipolar Configuration: 4-pole (3-phase+Neutral) design for complete system protection
• Easy Installation: DIN rail mounting with screw terminal connections for flexible installation

Technical Specifications:

• Article Number: DAC50-40-530 (Part Number 821110514)
• Protection Type: Type 2 AC surge protector
• Configuration: 3-phase+Neutral (4-pole)
• Network: 230/400V 3-phase+N
• Max. AC Operating Voltage: 530Vac
• Nominal Discharge Current (In): 20kA (8/20μs)
• Max. Discharge Current (Imax): 50kA per pole (8/20μs)
• Short-Circuit Current Rating: 50,000A (typical for DAC50 series)
• Residual Current: < 1mA (typical)
• Mounting: DIN Rail 35mm (EN 60715)
• Connection: Screw terminals, 2.5-25mm²
• Material: Thermoplastic UL94 V-0

Compatible Accessories:

• Remote Signaling Version: DAC50S-40-530 (with changeover contact output)
• 3-Phase Configuration: DAC50-30-530 (3-phase without neutral)
• Single-Pole: DAC50-10-530 (individual phase protection)
• Voltage Variants: DAC50-40-275 (275Vac), DAC50-40-320 (320Vac), DAC50-40-440 (440Vac)
• Alternative Models: DAC50S-31-440 (with remote signaling), DAC50S-40-440 (common mode with signaling)

Compliance & Certifications:

• Standards: IEC 61643-11, EN 61643-11, UL1449 Edition 5
• Certifications: UL certified, OVE, EAC
• Environmental: RoHS compliant

Applications:

Essential for primary surge protection in main switchboards of industrial facilities requiring higher voltage protection, commercial buildings with elevated distribution voltages, manufacturing plants, data centers with UPS systems, telecommunications infrastructure, renewable energy installations, marine and offshore applications, mining operations, and any 530Vac three-phase+Neutral electrical distribution system requiring Type 2 surge protection with high discharge capacity, modular plug-in design for easy maintenance, optional remote monitoring capabilities, and reliable overvoltage protection for sensitive equipment and critical loads in demanding industrial and commercial environments.