Shelter Type 2 320 - 1 Plus NPE AC SPD

SPD 320V AC Type 2 Surge Protection Device (Product Description)

The 320V AC Surge Protection Device (SPD) is designed to protect low-voltage AC power systems from transient overvoltage caused by lightning strikes, switching surges, and grid disturbances. It safely diverts surge energy to earth, preventing damage to electrical panels, equipment, control circuits, and sensitive electronics.

This Type 2 SPD is suitable for installation in main distribution boards, sub-distribution panels, and AC incoming panels. It features replaceable modules, visual fault indication, thermal protection, and reliable performance ensuring long-term surge safety for residential, commercial, and industrial installations.

Key Features

• Rated voltage: 320V AC (1+NPE)

• Type 2 AC surge protection

• High surge discharge capacity

• Protection from lightning & switching surges

• Built-in thermal disconnection safety

• Visual status / fault indication window

• Low residual voltage for better equipment protection

• Replaceable protection cartridges

• DIN-rail mounting for easy installation

• Strong and durable ABS flame-retardant housing

Technical Specifications

• Nominal voltage: 320V AC

• Configuration: 1+NPE

• Protection type: Type 2 (AC)

• Max discharge current (Imax): up to 40kA / 60kA (model dependent)

• Response time: < 25 ns

• Protection mode: LN / NPE

• Mounting: DIN rail

• Insulation material: Flame-retardant

• Application: AC power distribution & protection

Applications

• Main & sub-distribution panels

• Residential electrical panels

• Commercial buildings

• Industrial control panels

• UPS & power backup systems

• HVAC, motors, & electrical equipment protection