Phase loss protection relay CRV1-31 series

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The CRV1-31 relay switches when the voltage of one of the phases exceeds the minimum or maximum thresholds and in case of phase reversal: - Electrical: CRV1-31: for three-phase network without neutral Un = 400V. CRV1-31-230: for three-phase network without neutral Un = 230V. CRV1-31N: for tetra network (three-phase + neutral) Un = 230/400V. - Output contact: Single-pole changeover contact 8A/250V. Relay trip delay of 2s. Hysteresis 2%. - Physical: 1-module width housing (18mm), DIN rail mountable. 3 LEDs to indicate relay status, voltage fault, phase sequence fault. - The relay switches if: – The voltage of one of the phases reaches the fixed minimum (75% Un) or maximum (125% Un) thresholds, and the 2s delay has elapsed. – Phase reversal. - Applications: The phase sequence and phase loss protection relay is used in tertiary and industrial electrical panels. Its relay protects devices and electrical circuits from inappropriate voltages and alerts in case of abnormal voltage value or phase reversal. - Compliance: CE, RoHs, REACH. - Applicable standards: EN 60255-1, EN 60255-26 & -27. Variants and order codes: Order code | Circuit type | Stocked product CRV1-31-230 | Three-phase 3x 230V AC | In stock CRV1-31 | Three-phase 3x 400V AC | In stock CRV1-31N | Tetraphase 3x 230V AC | In stock - Technical features / specifications: - Relay switches if phase voltage reaches fixed thresholds (min 75% Un, max 125% Un) after 2s delay - Phase reversal detection - Single-pole changeover contact 8A/250V - Hysteresis: 2% - DIN rail mounting, 1 module (18mm) - 3 status LEDs (relay, voltage fault, phase sequence fault) - CE, RoHs, REACH compliant - Standards: EN 60255-1, EN 60255-26 & -27