ABB CM‑PFS.S Three‑Phase Phase Monitoring Relay • 2 c/o SPDT Contacts • Fixed 500 ms Built‑in Delay • 200–500 V AC • Screw‑Terminal DIN‑Rail Mount (22.5 mm Width)

Product description

• CONTINUOUS PHASE SEQUENCE AND PHASE FAILURE MONITORING – The ABB CM‐PFS.S monitors phase sequence and detects phase failure in 3-phase systems (200–500 V AC). Its compact design supports safe and reliable operation in sensitive industrial applications.
• FIXED START‐UP DELAY WITH INSTANT RESPONSE TO FAULTS – This relay includes a built-in start-up delay of approximately 500 milliseconds, ensuring that brief voltage fluctuations during system startup do not trigger false alarms or shutdowns.
• DUAL SPDT OUTPUT CONTACTS FOR SIGNAL OUTPUT – The CM‐PFS.S includes two SPDT relays (250 V/4 A) for reliable signaling. These can trigger alarms, disconnect relays, or notify control systems in response to detected phase issues.
• COMPACT 22.5 MM WIDTH & DIN‐RAIL MOUNTING – With screw-terminal connections and standard TH35 DIN rail mounting, this monitoring relay installs quickly into industrial panels, offering a compact footprint of just 22.5 mm for space-saving deployment.
• ABB QUALITY – The CM series features compact design and robust construction for reliable monitoring in industrial and automation systems. All units comply with international standards for safety, quality, and long-term durability.