Hager 100 A 4‑Pole DIN‑Rail Isolator Switch

Brand: Hager

Model: Typically SBN490 or equivalent

Rated Current: 100A

Number of Poles: 4 (Three-phase + Neutral)

Rated Operating Voltage: 400–415VAC

Rated Insulation Voltage (Ui): 440V

Rated Impulse Withstand Voltage (Uimp): 6kV

Utilization Category: AC-21A and AC-22A

Short-Circuit Capacity: Approx. 1.7kA making, 1.2kA breaking at 415V

Power Loss: Approximately 22W total (around 5.5W per pole)

Operating Temperature Range: -20°C to +70°C

Terminal Capacity:

• Solid conductors: up to 50mm²

• Flexible conductors: up to 35mm²

Ingress Protection Rating: IP20 (when installed inside an enclosure)

Mounting Type: DIN rail (35mm standard)

Switch Type: Manual toggle with ON/OFF indication

Construction: Thermoplastic housing with durable internal contact mechanisms

Dimensions (approximate):

• Height: 83mm

• Width: 70mm

• Depth: 70mm

Mechanical Endurance: ≥ 40,000 operations

Electrical Endurance: ≥ 2,500 operations at rated load

Conformity Standards: IEC 60947-3 / EN 60947-3 / BS EN 60947-3

Application: Main switch disconnector for distribution boards, providing isolation and safety during maintenance or emergency shutdowns