Why Choose the Lovato SA1B2PA320R Surge Protection Device?
The Lovato SA1B2PA320R is a high-capacity Type 1, Type 2 and Type 3 monoblock surge protection device (SPD) designed to protect low-voltage AC electrical installations against lightning impulse currents, switching surges and transient overvoltages. Its two-pole configuration makes it suitable for single-phase systems requiring coordinated surge protection across the line and neutral conductors.
With an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform, the SA1B2PA320R is engineered for demanding installations exposed to severe surge conditions. Its durable monoblock construction combines multiple stages of surge protection within one compact device, helping simplify installation and improve protection coordination.
The device has a maximum continuous operating voltage of 320 V AC, a nominal discharge current of 25 kA and a maximum discharge current of 100 kA. An integrated remote signalling contact allows its operating condition to be monitored through an alarm, building management system or industrial control system.
Key Advantages
- Combined Type 1, Type 2 and Type 3 surge protection.
- Two-pole configuration for single-phase AC installations.
- 25 kA impulse current per pole using a 10/350 µs waveform.
- 100 kA maximum discharge current for severe transient conditions.
- Robust monoblock construction for dependable performance.
- Integrated remote signalling contact for external status monitoring.
- DIN rail mounting enables straightforward installation in distribution boards.
Key Features
- Lovato SA1B monoblock surge protection series.
- Type 1, Type 2 and Type 3 SPD classification.
- Two-pole (2P) configuration.
- 320 V AC maximum continuous operating voltage.
- 25 kA impulse discharge current per pole.
- 25 kA nominal discharge current.
- 100 kA maximum discharge current.
- 1.4 kV voltage protection level.
- Optical operating-status indication.
- Integrated remote relay output.
- IP20 protection rating.
- Compliant with IEC/EN 61643-11.
High-Capacity Protection Against Lightning and Switching Surges
Surge protection devices divert damaging transient currents away from connected equipment and safely discharge them towards earth. This helps protect electrical insulation, automation components and sensitive electronics from premature failure while reducing the risk of costly system downtime.
The Lovato SA1B2PA320R combines several surge protection classes within a durable monoblock assembly. Its 25 kA impulse current per pole enables it to manage partial lightning currents, while its 100 kA maximum discharge capacity provides robust protection against severe transient overvoltages.
Typical Applications
- Single-phase main electrical distribution boards.
- Commercial and industrial switchboards.
- Buildings with external lightning protection systems.
- Industrial machinery and automation panels.
- Building management and monitoring systems.
- Protection of PLCs and variable speed drives.
- Critical electronic and control equipment.
