ABB Stotz S&J current monitoring relay CM-SRS.21S 220-240V. Manufacturer: ABB Stotz S&J. Designation: Current monitoring relay 2W 3mA-1A. Type: CM-SRS.21S 220-240V. Electrical connection type: Screw connection. With removable terminals: no. Single-phase undercurrent possible: yes. Three-phase undercurrent possible: no. Single-phase overcurrent possible: yes. Three-phase overcurrent possible: no. Single-phase window possible: yes. Three-phase window possible: no. Includes DC undercurrent function: yes. Includes DC overcurrent function: yes. DC window function: yes. Rated control supply voltage Us at AC 50 Hz: 220..240 V. Rated control supply voltage Us at AC 60 Hz: 220..240 V. Voltage type for actuation: AC. Current measuring range: 0.1..1 A. Min. adjustable response delay time: 0 s. Max. permissible response delay time: 0 s. Min. adjustable fallback delay time: 0.1 s. Max. permissible fallback delay time: 30 s. Number of contacts as changeover: 2. External current transformer: no. Width: 22.5 mm. Height: 85.6 mm. Depth: 103.7 mm.

The current monitoring relays of the CM series protect single-phase networks (DC or AC) against overcurrents and undercurrents between 3 mA and 15 A. The devices with a maximum measuring range of 1 A are available in two different connection versions. You can choose between the proven screw connection technology (double-chamber box connection terminals) and the tool-free Easy Connect connection technology (push-in terminals). Devices with a measuring range of up to 15 A are available with screw connection technology. EAN: 4016779852340.