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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | ATC Diversified |
| Manufacturer Product Number | SLM-380-ASE |
| Description | Phase Monitor Relay; 3-Phase; 2C DPDT |
| Datasheet | Download Datasheet |
The ATC Diversified SLM-380-ASE is a 3-phase voltage and frequency monitor. It drops its output relay out on phase loss, phase reversal, phase unbalance, phase shift, undervoltage, overvoltage and frequency shift and resets once the fault clears.
Input: 350, 365, 380, 390, 400, 415 V AC (selectable set points). Input range: 457 V AC max. Trip points: undervoltage 10% below the set point (resets at 7%); overvoltage 10% above the set point (resets at 7%); unbalance 7% fixed (resets at 5%). Trip delay: phase loss / reversal 1 s; undervoltage 1.5 s; unbalance 2 s. Restart: 1.5 s to 5 min adjustable, plus the 2 s sampling delay. Reset: automatic, manual or automatic with memory.
Output: 2C DPDT, 3 A resistive at 600 V AC; 360 VA inductive; 1/2 HP. Mounting: surface mount (#8 screws), screw terminals. Indicator: 6 LEDs: time delay (green) and a red fault LED each for under voltage, over voltage, phase sequence / shift, frequency shift and unbalance. Approvals: UL (E55826). It operates from 0 to +55 °C and stores from -45 to +85 °C.
| Category | |
| Manufacturer | ATC Diversified |
| Model | SLM |
| Monitoring Function | Phase Loss, Phase Reversal, Phase Unbalance, Phase Shift, Undervoltage, Overvoltage and Frequency Shift |
| Number of Phases | 3-Phase |
| Sensing Method | Microprocessor based |
| Input Voltage | 350, 365, 380, 390, 400, 415 V AC (selectable set points) |
| Input Operating Range | 457 V AC max |
| Undervoltage Trip Range | 10% below the set point (resets at 7%) |
| Overvoltage Trip | 10% above the set point (resets at 7%) |
| Phase Unbalance Trip | 7% fixed (resets at 5%) |
| Restart Delay (s) | 1.5 s to 5 min adjustable, plus the 2 s sampling delay |
| Trip Delay - Phase Loss and Reversal (ms) | 1 s |
| Trip Delay - Undervoltage (s) | 1.5 s |
| Trip Delay - Unbalance | 2 s |
| Reset Method | Automatic, manual or automatic with memory |
| Status Indicator | 6 LEDs: time delay (green) and a red fault LED each for under voltage, over voltage, phase sequence / shift, frequency shift and unbalance |
| Contact Configuration | 2C DPDT |
| Output Rating | 3 A resistive at 600 V AC; 360 VA inductive; 1/2 HP |
| Number of Poles | 2 |
| Mounting Type | Surface Mount - #8 screws |
| Termination Style | Screw Terminal |
| Operating Temperature (Storage) | 0...+55 °C (-45...+85 °C) |
| Approvals | UL (E55826) |