Product Description
The 1109546 relay (REL-MR-BL-24AC/21-21) is a plug-in miniature power relay from Phoenix Contact, designed for switching and isolation tasks in industrial control systems. It features a 24V AC coil, 2 changeover contacts (DPDT), and a compact 8-pin design suitable for PLC panels, automation systems, and control cabinets. It provides reliable switching performance and long mechanical life for industrial applications.
Key Features
• Miniature plug-in power relay
• 24V AC coil voltage
• 2 changeover contacts (DPDT)
• Contact rating up to 8A
• Compact 8-pin design
• Fast response and release times
• Silver nickel (AgNi) contact material
• High electrical isolation between coil and contacts
• Long mechanical life up to 5 million operations
• Suitable for industrial automation and control panels
Specifications
• Product Type: Miniature Power Relay
• Model: 1109546 (REL-MR-BL-24AC/21-21)
• Coil Voltage: 24V AC
• Contact Configuration: DPDT (2CO)
• Contact Rating: 8A at 250V AC/DC
• Maximum Switching Voltage: 250V AC/DC
• Maximum Inrush Current: 12A
• Coil Current: 31.6mA
• Coil Resistance: 350Ω
• Mounting Type: Plug-in / PCB Mount
• Terminal Type: 8 Pin
• Response Time: 3–12 ms
• Release Time: 2–9 ms
• Dimensions: 29 × 12.7 × 15.7 mm
• Operating Temperature: -40°C to +70°C
• Contact Material: AgNi (Silver Nickel)
• Application: PLC systems, industrial automation, control panels, machine control, interface relays

