GAZ040DT4B - 40A PV ISOLATOR INTERNATIONAL VERSION

Why Choose the GAZ040DT4B?

Designed for reliable DC isolation in solar installations, the Lovato GAZ040DT4B switch disconnector delivers secure performance in demanding environments. This photovoltaic-specific, IP65 enclosed unit features a black handle and a compact 175x210x99mm footprint for straightforward mounting. With a 2-pole configuration and 40A, 1000V capability, it provides robust disconnection at the array or inverter input, supporting safe maintenance in UK commercial and industrial PV systems.

Engineered to IEC/EN 60947-1 and 60947-3, it offers 1500 V rated insulation (Ui) and 8 kV impulse withstand (Uimp) for dependable overvoltage resilience. Terminals accept 1 to 10 mm² conductors with a tightening torque of 1.2 to 1.6 Nm, while the mechanism is rated for 10,000 mechanical cycles. Suitable for -25 to +55 °C operation up to 3000 m altitude, with max 1.9 W power dissipation per pole aiding thermal management.

Key Benefits

• IP65 enclosed design protects against dust and water ingress.
• 2-pole DC isolation ideal for photovoltaic string and inverter circuits.
• Rated 40A at 1000V for robust high-voltage DC switching.
• High insulation rating Ui 1500 V enhances electrical safety margins.
• 8 kV impulse withstand improves transient overvoltage resilience.
• Accepts 1 to 10 mm² conductors for flexible installation.
• Mechanical life rated 10,000 cycles for durable operation.

Technical Specification

• Number of poles: 2
• Operating voltage type: DC
• Ith (IEC): 40 A
• Rated insulation voltage Ui (IEC/EN): 1500 V
• Rated impulse withstand voltage Uimp: 8 kV
• Power dissipation per pole (max): 1.9 W
• Mechanical life: 10000 cycles
• Terminal tightening torque: 1.2 to 1.6 Nm
• Conductor section (IEC): 1 to 10 mm²
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Max altitude: 3000 m
• IP degree (frontal): IP65
• IP degree of protection: IP65

What’s Included

• IP65 enclosed switch disconnector with black handle (Lovato GAZ040DT4B)
• Pre-fitted 2-pole DC switch mechanism
• Installation leaflet
• Product datasheet (downloadable)

Applications

• DC isolation at photovoltaic array or string level
• Inverter DC input disconnection for maintenance
• Rooftop and ground-mount PV combiner boxes
• General DC isolation in solar equipment enclosures

Safety note: Always isolate the circuit before installation or maintenance. Use suitably rated conductors, apply the specified tightening torque, and install in accordance with IEC/EN 60947 and local regulations.