ABB Stotz S&J 3-phase monitoring relay CM-PAS.31P. Manufacturer: ABB Stotz S&J. Designation: 3-phase monitoring relay 2W 30s, 3x160-300VAC. Type: CM-PAS. Electrical connection type: Spring clamp connection. With removable terminals: No. Rated control supply voltage Us at AC 50 Hz: 160-300 V. Rated control supply voltage Us at AC 60 Hz: 160-300 V. Voltage type for operation: AC. Phase sequence monitoring function: Yes. Phase failure detection function: Yes. Under-voltage detection function: No. Over-voltage detection function: No. Asymmetry detection function: Yes. Voltage measurement range: 160-300 V. Min. adjustable response delay time: 0.2 s. Max. permissible response delay time: 0.2 s. Min. adjustable fallback delay time: 0.1 s. Max. permissible fallback delay time: 30 s. Number of contacts as changeover: 2. Width: 22.5 mm. Height: 85.6 mm. Depth: 103.7 mm.

The CM-PAS.31P monitors the following parameters: phase failure, phase sequence, and phase asymmetry. The rated control supply voltage of 160-300 V AC corresponds to the measurement voltage, and the device is powered from the measurement voltage. Output: 2 changeover contacts (250 V / 4 A). A switch-on delay can be set from 0 to 30 s (0, 0.1-30 s). A sealable transparent cover to protect against unauthorized adjustment of the settings is available as an accessory. The device features maintenance-free and easy-to-handle push-in terminals.