BY5-120 SPD
Home Products Surge Protection DeviceT2 SPDBY5-120 SPD
BY5-120 SPD
BY5-120 AC Surge Protector is designed according to IEC lightning protection requirements, combined with the application environment of AC power supply systems. It uses high-energy MOV chips with nanosecond response speed. It provides a reliable voltage protection level, super strong surge current discharge capability, and safe overload characteristics, offering reliable functions for lightning protection, surge protection, power grid purification, and safety.
Application Scope
It is mainly used for lightning protection of various distribution boxes and other electrical equipment in AC power supply systems.
Performance Features
· Designed for voltage limiting, complying with Type 1 test requirements.
· Multiple combination modes to achieve differential mode and common mode protection functions.
· High-energy MOV with low residual voltage and high voltage protection level.
· The disconnector has an arc-quenching device and strong overload capability.
· High continuous working voltage and large current-carrying capacity.
· Fast response speed without continued flow.
· Rail-mounted installation.
· Enhanced nylon casing with IP20 protection level.
· Small and compact size, easy to install and use.
| Model No.: |
BY5-120/3-275 BY5-120/4-275 |
BY5-120/3-320 BY5-120/4-320 |
BY5-120/3-385 BY5-120/4-385 |
BY5-120/3-420 BY5-120/4-420 |
BY5-120/3-550 BY5-120/4-550 |
| Rated operational voltage Uopv(V) | 220～690 | 220～690 | 220～690 | 220～690 | 220～690 |
| Maximum continuous operating voltage Ucpv(V) | 275 | 320 | 385 | 420 | 550 |
| Quantity of electric charge Q(As) | 6.25 | 6.25 | 6.25 | 6.25 | 6.25 |
| Nominal discharge current In (kA) | 60(8/20μs) | 60(8/20μs) | 60(8/20μs) | 60(8/20μs) | 60(8/20μs) |
| Maximum discharge current Imax (kA) | 120(8/20μs) | 120(8/20μs) | 120(8/20μs) | 120(8/20μs) | 120(8/20μs) |
| The impact of discharge current Iimp（kA） | 12.5(10/350μs) | 12.5(10/350μs) | 12.5(10/350μs) | 12.5(10/350μs) | 12.5(10/350μs) |
| Voltage protection level Up(kV) | 1.8 | 2 | 2.5 | 3 | 3.5 |
| Capcity of connection | 4～35mm² | 4～35mm² | 4～35mm² | 4～35mm² | 4～35mm² |
| Protection of degree | IP20 | IP20 | IP20 | IP20 | IP20 |
| Material | PA66 | PA66 | PA66 | PA66 | PA66 |
| Flame retardant grade (comply with) | UL94V-0 | UL94V-0 | UL94V-0 | UL94V-0 | UL94V-0 |
| Local indication: Green indicates normal state and red indicates failure. | |||||
Technical Parameters
| Model | BY5-120 |
| Nominal operating voltage Uo (V) | 230/400 400/690 |
| Nominal Continuous Operating Voltage Uc (V) | 385 420 550 690 |
| Nominal Discharge Current In (kA) | 60 |
| Maximum Discharge Current Imax (kA) | 120 |
| Impulse Current Iimp (kA) | 12.5 |
| Charge Quantity Q (As) | 6.25 |
| Voltage Protection Level Up (kV) | 2.5 3.0 3.5 3.8 |
| Rated Short Circuit Current Isc (A) | 1000 |
| Local Failure Indication | Green window: Normal Red window: Failure |
| Fault Alarm Contact | 1NO 1NC |
| Response Time | ≤ 25 ns |
| Insulation Resistance | > 50 MQ |
| Wiring Capacity | 4～35 mm² |
| Flame Retardant Rating of the Casing | UL94V-0 |
| Casing Protection Level | IP20 |
| Combination Mode | 3 0,4 0,3 1 |
| Installation Method | DIN:35mm |
| Operating Temperature | -40℃~70℃ |
| Operating Humidity | 5%RH～95RH |
| Altitude | <2000 m |
Need more information?
Contact us to request pricing, availability and customization options.
