Schneider Electric GV7‑RS150

Technical Specifications

Rated operational voltage 690 V AC; Rated uninterrupted current Iu = 150 A; Thermal overload adjustment range 90 A‑150 A; Utilization category AC‑3; Rated operational power at 400 V AC: 75 kW; Breaking capacity Icu 70 kA at 415 V AC; Poles: 3P; Mechanical control: rocker lever; Dimensions: 161 mm × 105 mm × 111 mm; Weight: 2.4 kg.

Functional Features

Thermal‑magnetic trip unit; Phase‑failure sensitive protection function; Qualified as electrical isolation device; High short‑circuit breaking performance; Vibration and shock resistance; Support rail‑mount and screw‑panel mounting methods; Visible trip indication status; Terminal shroud for IP40 protection rating.

Application Scenarios

Industrial motor control cabinets, large fan and pump motor protection, conveyor main‑drive motor protection, process plant motor control, heavy‑duty mechanical equipment motor circuit protection.

Performance Parameters

Operating ambient temperature range ‑25 °C ~ +70 °C; Storage temperature ‑55 °C ~ +95 °C; Shock resistance 15 gn for 20 ms; Vibration resistance 2.5 gn at 25 Hz; Fire resistance rating 960 °C; Compliance with IEC 60947‑2, IEC 60947‑4‑1 standards.

Material Composition

Thermoset flame‑retardant plastic enclosure; Copper‑alloy conductive busbars; Bimetallic thermal trip element; Magnetic solenoid short‑circuit trigger assembly; Silver‑alloy main contact sets; Mechanical latching and rocker mechanism.

Structural Characteristics

Modular molded‑case structure; Front‑panel rocker operating handle; Adjustable thermal setting dial on front face; Top‑and‑bottom main‑circuit terminal compartments; Auxiliary contact expansion slots on side housing; Internal arc‑quenching chamber structure.

Working Principle

Thermal bimetallic strip deforms under overload current heat to trigger overload trip; Magnetic solenoid generates instantaneous magnetic force under short‑circuit large current for fast short‑circuit trip; Mechanical latch releases to open main contacts, cutting off motor power supply; Phase‑loss detection triggers trip upon single‑phase supply loss.

Installation Requirements

Install vertically inside electrical cabinet; Can be DIN‑rail mounted or fixed with screws; Maintain clearance for heat dissipation; Match wire cross‑section to rated current; Ensure reliable earthing of cabinet frame; Avoid installation near high‑heat heat‑generating components.

Usage Notes

Adjust thermal trip setting value strictly matching motor rated current; Do not use for frequent motor switching operation; Confirm terminal shrouds are installed for personnel safety; Avoid operation exceeding altitude derating limit; Perform periodic contact inspection for heavy‑duty cycles.