Technical Parameters General Product Type: Current monitoring relay (single‑phase) Model: CM‑SRS.12S Series: CM monitoring relay range Mounting: DIN‑rail mountable Connection Type: Screw connection with double‑chamber cage terminals Monitoring & Measurement Current Measurement Principle: RMS measurement of AC and DC current Measuring Ranges (selectable): 0.3 – 1.5 A 1 – 5 A 3 – 15 A Monitoring Type: Configurable for overcurrent or undercurrent detection Hysteresis: Adjustable (approx. 3 % – 30 % of threshold) Control / Output Output Contact: 1 × Changeover (SPDT) Contact Rating: Up to 250 V AC / 4 A (control/relay output) Contact Function: Relay output for control or signaling Electricals Rated Control Supply Voltage: Wide range versions: 24 – 240 V AC/DC for universal supply 220 – 240 V AC only (control voltage variant) Voltage Type: AC/DC compatible (on universal versions) Operating Phase: Single‑phase current monitoring Performance & Operation Response Types: Overcurrent and undercurrent trip based on set thresholds Adjustment: Threshold and hysteresis adjustable via front controls Status Indication: Relay output state visible via mechanical indicator Mechanical & Physical Dimensions: Width: ~22.5 mm Height: ~85.6 mm Depth: ~103.7 mm Weight: ~0.14 – 0.19 kg depending on variant Housing: Industrial DIN‑rail relay enclosure Environmental Operating Temperature: Suitable for typical industrial ambient temperature ranges Pollution Degree: Designed for industrial environments Protection: Front panel protection per standard enclosure specs Applications Overcurrent and undercurrent monitoring in industrial control panels Protection and alarm systems for motors and loads Automation systems requiring current supervision Control logic interfaces for contactors, breakers, and PLCs **Single‑phase power monitoring in machine and equipment enclosures