Citel DAC40C-31-275 SPD, compact, type 2, 3P+N, 230/400V

Product Overview

The DAC40CS-31-275 is a compact Type 2 (or Type 3) AC surge protector with integrated remote signaling designed for protection of 3-phase+Neutral systems at the main switchboard. This advanced SPD features high-performance metal oxide varistor technology with pluggable protection modules, providing both common mode and differential mode protection with 40kA discharge capacity, thermal disconnection, and potential-free remote signaling contact for comprehensive system monitoring in 275Vac applications.

Key Features:

• Compact Design: Space-efficient Type 2 or Type 3 protection in a compact DIN rail mountable package
• Dual Mode Protection: Provides both common mode (transverse) and differential mode (longitudinal) voltage protection
• Pluggable Protection Module: Field-replaceable cartridge design for easy maintenance without system shutdown
• Integrated Remote Signaling: Potential-free changeover contact for remote status monitoring and building management integration
• High Discharge Capacity: 20kA nominal discharge current with 40kA maximum discharge per pole (8/20μs)
• Thermal Disconnection: Safe disconnect device with thermal break and visual error signaling
• Energetically Coordinated: Optimized protection coordination for maximum system reliability
• Universal Network Compatibility: Suitable for all common mains types (TN, TNC, TNS, TT)

Technical Specifications:

• Article Number: DAC40CS-31-275 (Part Number 821520222)
• Protection Type: Type 2 (or Type 3) AC surge protector
• Configuration: 3-phase+Neutral (4-pole)
• Network: 230/400V 3-phase+N
• Max. AC Operating Voltage: 275Vac
• Nominal Discharge Current (In): 20kA per pole (8/20μs)
• Max. Discharge Current (Imax): 40kA per pole (8/20μs)
• Protection Modes: Common and differential mode
• Remote Signaling: Potential-free changeover contact
• Mounting: DIN Rail compatible
• Visual Indicator: Status signaling via visual indicator

Compatible Accessories:

• 3-Phase Configuration: DAC40CS-30-275 (3-phase without neutral)
• Common Mode Version: DAC40CS-40-275 (common mode only with neutral)
• Single-Phase: DAC40CS-11-275 (single-phase with remote signaling)
• Voltage Variants: DAC40CS-31-150 (150Vac), DAC40CS-31-320 (320Vac)
• Lower Capacity: DAC15CS-31-275 (15kA version)
• Higher Capacity: DAC50S-31-275 (50kA version)

Compliance & Certifications:

• Standards: IEC 61643-11, EN 61643-11, UL1449 Edition 5
• Environmental: RoHS compliant

Applications:

Essential for compact surge protection in main switchboards and divisional panels of commercial buildings, industrial facilities, residential installations, office complexes, retail stores, data centers, telecommunications rooms, and any 230/400V three-phase+Neutral electrical distribution system where space is limited and Type 2 or Type 3 protection is required with both common and differential mode capabilities, integrated remote status signaling for facility management systems, pluggable module design for easy maintenance, and compatibility with all common mains types (TN, TNC, TNS, TT) for comprehensive electrical system protection in space-constrained installations.