The **M2TS-0B-R2/UL** is a specific model of an **Automatic Transfer Switch (ATS)**, typically produced by manufacturers like **Delta** or **Raritan**. It is designed for high-availability power environments such as data centers or server rooms. --- ### 1. Device Overview The primary function of this electronic part is to provide **power redundancy** to single-corded network equipment. It accepts two independent power sources (Source A and Source B) and automatically switches to the secondary source if the primary source fails. ### 2. Technical Specifications The following table highlights the core electrical and mechanical characteristics of the M2TS-0B-R2/UL: | Component / Feature | Specification | |:---|:---| | **Input Voltage** | 200V - 240V AC | | **Current Rating** | 16A (or 20A depending on regional UL derating) | | **Input Plugs** | Dual IEC-320 C20 | | **Output Outlets** | Multiple (Typically 8x C13 and 1x C19) | | **Switching Time** | < 10ms to 15ms (Typical) | | **Form Factor** | 1U Rackmount | | **Safety Standard** | UL/cUL Listed | --- ### 3. Key Electronic Sub-Systems #### A. Sensing Circuitry The device contains internal sensors that constantly monitor the **voltage** and **frequency** of the primary power source. If the voltage drops below a specific threshold (brownout) or disappears entirely (blackout), the logic board triggers the switch. #### B. Fast-Switching Relays/SCRs To ensure the connected server does not reboot during a transfer, the M2TS-0B-R2/UL uses high-speed switching components. * **Transfer Time:** It is fast enough that the power supplies (PSUs) of the connected equipment can "ride through" the interruption using their internal capacitors. #### C. Network Management Card (NMC) Many "R2" models include an integrated web interface or SNMP support. * **Monitoring:** Allows remote monitoring of current load (Amps). * **Alerting:** Sends emails or SNMP traps if a power source is lost. #### D. Built-in Circuit Breakers The unit includes resettable thermal breakers to protect against overcurrent conditions, preventing damage to the internal busbars and the upstream power distribution. --- ### 4. Application Logic The M2TS-0B-R2/UL operates on a **Primary/Secondary** logic: 1. **Normal Mode:** Source A feeds the load. Source B is on standby. 2. **Fault Mode:** Source A fails. The ATS switches to Source B in milliseconds. 3. **Recovery:** Once Source A is stable again, the ATS can be configured to "Auto-Retransfer" back to the primary source. ---