Specifications General Type: Control Relay / Auxiliary Module Series: ABB 3HNA Model: 3HNA027026-001 Application: Auxiliary signaling, interlocking, and control in low-voltage electrical systems Mounting: DIN rail or panel mount, modular installation Electrical Characteristics Rated Operational Voltage (Ue): 24–400 V AC/DC Output Contacts: Configurable NO/NC relay contacts (typical 2 NO + 2 NC) Rated Contact Current (Ie): 5–10 A depending on variant Electrical Life: 100,000 operations at rated load Coil Power Consumption: <2 W typical Mechanical & Construction Housing Material: Industrial-grade thermoplastic Mechanical Life: >1,000,000 operations Terminal Type: Screw or plug-in terminals Dimensions: Compact, modular design for panel or DIN rail installation Protection Class: IP20 (panel mounted) Environmental Conditions Operating Temperature: –25 °C to +55 °C Storage Temperature: –40 °C to +70 °C Humidity: 0–95% RH, non-condensing Standards & Certifications Standards Compliance: IEC 60947-4-1, IEC 60947-5-1 Safety & EMC: CE marked, industrial-grade EMC compliance Approvals: UL, CSA depending on region Features Modular and compact design for auxiliary control Reliable NO/NC contacts for signaling, interlocking, and control Easy snap-on or panel mounting Compatible with ABB low-voltage contactors and control devices Long mechanical and electrical service life