Why Choose the Lovato SA1B4PA320R Surge Protection Device?
The Lovato SA1B4PA320R is a high-capacity Type 1, Type 2 and Type 3 monoblock surge protection device (SPD) designed to protect low-voltage electrical installations against lightning impulse currents, induced surges and switching overvoltages. Its four-pole configuration provides coordinated surge protection across four conductors in suitable three-phase AC power systems.
With an IEC impulse current rating of 25 kA per pole using a 10/350 µs waveform, the SA1B4PA320R is engineered for installations exposed to severe transient conditions. Its monoblock construction combines several surge-protection classes within one robust device, simplifying installation while providing effective protection at main distribution and sub-distribution level.
The device supports a maximum continuous operating voltage of 320 V AC, a nominal discharge current of 25 kA per pole and a maximum surge current of 100 kA. An integrated remote signalling contact allows the SPD's operating status 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.
- Four-pole configuration for multi-conductor AC installations.
- 25 kA impulse current per pole using a 10/350 µs waveform.
- 100 kA maximum surge current for severe transient conditions.
- Robust monoblock construction for dependable long-term protection.
- Integrated remote signalling contact for external condition monitoring.
- Optical status indication supports straightforward visual inspection.
- DIN rail mounting simplifies installation within distribution equipment.
Key Features
- Lovato SA1B monoblock surge protection series.
- Type 1, Type 2 and Type 3 SPD classification.
- Four-pole (4P) configuration.
- 320 V AC maximum continuous operating voltage.
- 25 kA impulse discharge current per pole.
- 25 kA nominal discharge current per pole.
- 100 kA maximum surge current.
- 1.4 kV voltage protection level.
- IP20 protection rating.
- Integrated optical operating-status indication.
- Remote contact for alarm and monitoring systems.
- Compliant with IEC/EN 61643-11.
High-Capacity Four-Pole Surge Protection
Surge protection devices divert damaging transient currents away from connected electrical equipment and safely discharge them towards earth. This helps protect insulation, automation components and sensitive electronics from premature failure while reducing the risk of costly equipment damage and unplanned downtime.
The Lovato SA1B4PA320R combines several surge-protection classes within a durable monoblock assembly. Its 25 kA impulse current rating per pole enables it to manage partial lightning currents, while its high surge-current capacity provides robust protection against severe induced and switching overvoltages.
Typical Applications
- Three-phase distribution boards with neutral conductors.
- Industrial switchboards and control panels.
- Commercial low-voltage electrical installations.
- Buildings equipped with external lightning protection systems.
- Industrial machinery and automation equipment.
- Building management and monitoring systems.
- Protection of PLCs, variable speed drives and sensitive electronics.
