RELAY voltage monitoring (Finder 70.42) 380-415VAC, 8A

Form

Three-phase voltage monitoring relay designed to supervise voltage quality, phase conditions, and neutral integrity in three-phase electrical systems

nominal system voltage: 380–415 VAC
frequency: 50/60 Hz
monitoring voltage range: 300–480 VAC
monitoring functions: overvoltage, undervoltage, window mode, phase loss, phase rotation, voltage asymmetry, neutral loss
fault memory: selectable (with or without memory)
asymmetry threshold: adjustable 5–25 % of UN
rated insulation category: overvoltage category III
IP protection: IP20
operating temperature: −20 °C to +60 °C
standards compliance: IEC / EN 60255, IEC / EN 61810
module width: 35 mm

Per piece.

supply connection: three-phase voltage sensing via L1, L2, L3, with neutral connection required
output interface: 2 changeover relay contacts (DPDT, 2 CO)
rated output current: 8 A (control circuits)
peak switching current: 15 A
contact material: AgNi
output contact behavior:

contacts close when monitored voltage and phase parameters are within set limits
contacts open on undervoltage, overvoltage, phase loss, incorrect phase rotation, voltage asymmetry, or neutral loss

electrical integration: interface with contactor coils, alarms, interlocks, or control system inputs
mounting interface: 35 mm DIN rail
terminal type: screw terminals
installation environment: electrical panels and control cabinets

Primary function:

continuous monitoring of three-phase voltage quality, phase sequence, and neutral integrity

Functional behavior and limitations:

detects abnormal voltage conditions, phase-related faults, asymmetry, and neutral loss
supports fault memory operation requiring manual reset when enabled
provides automatic recovery when fault memory is disabled and conditions return within acceptable limits
intended for monitoring and control purposes only
not designed for direct power switching of loads

Typical applications:

OC subscriptions: included in supply or field order tools (e.g. UniField)	OCA OCB OCBA OCG OCP
SC subscriptions: included in supply or field tools	MSF Supply MSF Log APU Casier Départ MSFSK
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)	OCA OCB OCBA OCG OCP