The **M2RS-60-R/UL** is a high-precision, industrial-grade **Solid State Timer** (also known as a Time Delay Relay) manufactured by **Nais/Panasonic** (formerly Matsushita). It is specifically designed for DIN rail mounting and is widely used in automation control panels. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Model Series** | M2RS Series | | **Operating Voltage** | 100-240V AC (Standard for R/UL suffix) | | **Contact Configuration** | SPDT (1 Form C) | | **Contact Rating** | 5A at 250V AC (Resistive Load) | | **Timing Range** | Multi-range (0.1s to 100h via selector switches) | | **Mounting Type** | 8-pin Circular Plug-in / DIN Rail | | **Certifications** | UL recognized, CSA, CE | --- ### 2. Electronic Components & Internal Workings The M2RS-60-R/UL is an **electronic** timer, meaning it uses integrated circuits rather than a mechanical clockwork mechanism. #### A. The Control Circuit (ASIC) The "brain" of the device is a **CMOS IC (Application-Specific Integrated Circuit)**. This chip counts frequency pulses (either from an internal oscillator or the line frequency) to ensure high repetitive accuracy (usually within ±0.3%). #### B. The Output Element (Electromechanical Relay) Despite being called a "Solid State Timer," this specific model usually utilizes an internal **Electromechanical Relay** for the final output stage. - **The "R" in the model name** often signifies a Relay output. - This allows for physical isolation between the control logic and the high-power load. #### C. Power Supply Section - **Transformerless or Switching Input:** It uses a capacitive dropper or a small switching regulator to convert the 100-240V AC input down to the 12V or 24V DC required for the internal IC. - **Filtering:** Includes MOV (Metal Oxide Varistors) for surge protection against industrial electrical noise. --- ### 3. Functional Modes This unit is typically a **Multi-mode** device. By adjusting the rotary dials on the front face, you can change how the electronic parts react: 1. **ON-Delay:** The relay energizes after a set time following power application. 2. **OFF-Delay:** (In some variants) The relay stays on for a period after the trigger signal is removed. 3. **Flicker/Cycle:** The relay pulses ON and OFF repeatedly at the set interval. --- ### 4. Terminal Pinout (8-Pin Base) The electronics are accessed via a standard circular 8-pin configuration: | Pin Number | Function | | :--- | :--- | | **2 & 7** | Power Input (Source) | | **1 & 4** | Normally Closed (NC) Contacts | | **1 & 3** | Normally Open (NO) Contacts | | **8, 5, 6** | Second set of contacts (if DPDT) or Signal Triggers | ---