Technical Parameters Parameter Specification Product Series CL Series (Compact Line Relay) Model Decoding CL2-520R • CL2: Series and possibly frame size designation. • 5: Number of poles / contact configuration. "5" often indicates 2 Changeover Contacts (2 Form C) in some ABB coding systems. • 20: Nominal Coil Voltage = 110V AC (Common code: 20 often corresponds to 110V AC, 50/60Hz). • R: Contact Arrangement code, here likely confirming the 2 Form C configuration and/or a 10A rating. Contact Configuration 2 Changeover (2 Form C / 2 PDT) - 2 poles, each with Common (C), Normally Open (NO), and Normally Closed (NC) terminals. Contact Material Silver Cadmium Oxide (AgCdO) or Silver Tin Oxide (AgSnO₂) for high arc endurance. Rated Load (Resistive, per contact) 10A @ 250V AC 10A @ 30V DC Maximum Switching Voltage 250V AC, 30V DC Maximum Switching Power (per contact) 2,500 VA (AC), 300 W (DC) Coil Voltage 110V AC, 50/60 Hz. Operable range: typically 80% to 110% of nominal. Coil Power Consumption Approx. 3.5 VA (for AC coil). Nominal Coil Current Approx. 32 mA @ 110V AC. Operate / Release Time Typically ≤ 20 ms. Electrical Life ≥ 100,000 operations at rated resistive load. Mechanical Life ≥ 10,000,000 operations (no load). Insulation Resistance > 100 MΩ (at 500V DC). Dielectric Strength (Hi-Pot) Coil to Contacts: 4,000V AC, 50/60Hz for 1 min. Between Open Contacts: 1,500V AC, 50/60Hz for 1 min. Between Poles: 2,000V AC, 50/60Hz for 1 min. Ambient Temperature Range -40°C to +70°C (Operation). Mounting Pluggable onto a dedicated 8-pin or 11-pin CL series socket (e.g., ABB CL-Socket). The socket is DIN-rail mountable. Terminals (via Socket) Screw clamp terminals on the socket. Standards Compliance IEC/EN 61810-1, UL 508, CSA C22.2 No. 14, CE, RoHS. Safety Approvals UL Recognized, CSA Certified. Dimensions (Relay only) Approx. 35mm (W) x 25mm (H) x 40mm (D). Weight Approx. 70g.