Specifications General Type: Auxiliary Contact Block / Control Module Series: 3K Model: 3K646622031454 Application: Auxiliary signaling, interlocking, and control for motor protection devices Mounting: Snap-on or panel mount on ABB contactors or breakers Electrical Characteristics Rated Operational Voltage (Ue): 24–600 V AC/DC Rated Current (Ie): 3–10 A depending on contact configuration Contact Configuration: Typically 1 NO + 1 NC Electrical Life: >100,000 operations at rated load Insulation Voltage (Ui): 400–500 V Mechanical & Construction Housing Material: Industrial-grade thermoplastic Mechanical Life: >1,000,000 operations Dimensions: Compact design for integration with ABB switching devices Terminal Type: Screw or plug-in terminals Protection Class: IP20 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 60947-5-1 Safety & EMC: CE marked, industrial-grade EMC compliance Approvals: UL, CSA depending on region Features Reliable auxiliary switching for control, signaling, and interlocking Compact, modular design for easy integration with ABB devices Robust construction for demanding industrial applications Supports multiple contact configurations (NO/NC) for flexible applications Snap-on mounting allows fast installation and maintenance