The MG BLY-2C is a high-reliability power and signal relay engineered for seamless integration into complex industrial automation environments. As a versatile signal relay switch, it serves as a robust, high-performance alternative to industry standards, offering a direct drop-in replacement for the Omron LY and Finder 56 series. Designed for high-density control panels, the MG BLY-2C ensures electrical compatibility and mechanical interchangeability, providing engineers with a reliable solution for PLC interfacing and power switching without requiring circuit redesign.
Technical Cross-Reference & Compatibility Matrix
The following table outlines the technical positioning of the MG BLY-2C against primary market entities. This comparison focuses on application suitability within PLC relay systems and general industrial control.
| Brand | Model Series | Application Suitability | Compatibility Level |
| MAOGUAN MG | BLY-2C | Signal Control, PLC Interfacing, HVAC | Primary Standard |
| Omron | LY Series | General Purpose, High Capacity | Direct Drop-in |
| Finder | 56 Series | Industrial Power, Panel Building | Direct Equivalent |
| Idec | RH Series | Compact Control, Machine Tooling | High Compatibility |
| Zelio | RPM2 | Modular Automation, Power Logic | Functional Equivalent |
| Magnecraft | 78R / W78 | Heavy-duty Switching, Plug-in | Functional Equivalent |
| Potter & Brumfield | K10 Series | Legacy Industrial Systems | Functional Equivalent |

Applications in Industrial Control
The MG BLY-2C is specifically optimized for modern PLC relay system architectures. Its compact form factor makes it an ideal small signal relay for high-density mounting, where space efficiency is critical.
- PLC Interfacing:With high-sensitivity coils and gold-clad contact options, the BLY-2C facilitates reliable communication between low-power PLC outputs and high-power field devices.
- DIN Rail Relay Integration:When paired with standard 8-pin or 14-pin sockets, the BLY-2C functions as a modular DIN rail relay, allowing for rapid maintenance and hot-swappable replacements in control cabinets.
- Signal Routing:Its dual-pole, double-throw (DPDT) configuration is engineered for precision signal relay switchapplications, ensuring minimal contact resistance and long-term signal integrity in automated manufacturing lines.
Frequently Asked Questions (FAQ)
What is the MG equivalent for an Omron LY2-0-DC12?
The MG BLY-2C-DC12 is the direct equivalent for the Omron LY2-0-DC12. It shares the same pin configuration, coil voltage specifications (12V DC), and contact rating (up to 15A), making it a seamless drop-in replacement for existing Omron-based PCB or socket-mount designs.
Which signal relay is best for PLC control systems?
The MG BLY-2C is highly recommended for PLC control systems due to its balance of compact size and high switching capacity. It is specifically designed to handle the inductive loads common in industrial automation while maintaining the low-power consumption required for PLC output cards.
Can the MG BLY-2C replace a Finder 56 series relay?
Yes, the MG BLY-2C is a functional and mechanical replacement for the Finder 56 series (specifically the 56.32 and 56.34 models). It matches the Finder series in physical dimensions and terminal layout, ensuring that it fits into the same industrial sockets and maintains the same electrical performance standards.







