Description
The OMU1 surge protector (SPD) is primarily designed to limit the amplitude value of transient over voltages, absorb and discharge surging current energy in electrical wiring systems operating at AC 50/60Hz with a rated working voltage of 230V. With a surging through flow capacity of up to 50A, this SPD is ideal for protecting electrical components by transferring high over voltages to lower, safer levels. It is particularly suited for use in combined electrical equipment, expanding installation types and usage range, and providing further protection to appliances such as TVs, hi-fi systems, computers, and other similar devices. The OMU1 SPD is compliant with IEC61643 standards, ensuring reliable performance and safety.
Features
- Over Voltage Limiting: Effectively limits the amplitude of transient over voltages, protecting electrical systems.
- Surging Through Flow Capacity: Handles surging currents up to 50A, ensuring robust protection.
- Versatile Application: Suitable for composing combined electrical equipment with other module terminal electrical equipment, enhancing installation flexibility.
- Wide Range of Protection: Ideal for protecting household appliances such as TVs, hi-fi systems, computers, and microcomputers.
- Standards Compliance: Complies with IEC61643, ensuring high-quality protection and safety.
- Household and Similar Places: Adapted for use in household and similar environments, protecting from surging currents caused by outdoor arresters and thunder direct strokes.
Exclusive Advantages
- Comprehensive Over Voltage Protection: Safeguards electrical components by transferring high over voltages to lower levels, preventing damage.
- Flexible Installation: Can be combined with other module terminal electrical equipment, increasing the range of installation types and usage.
- Enhanced Appliance Protection: Provides additional protection to sensitive appliances such as TVs, hi-fi systems, and computers, ensuring their longevity and reliability.
- Reliable Performance: Consistent and robust protection compliant with international standards, ensuring peace of mind.
- Adapted for Various Environments: Suitable for household and similar environments, protecting electrical systems from surging currents and direct thunder strokes.
Specification
| Number of Poles | 1P,1P+N,3P,3P+N |
| Thermal Setting In (A) | 6,10,16,20,25,32,40 |
| Tripping Characteristic | B,S |
| Rated Voltage AC Un(V) | 240 |
| Minimum Operating Voltage UBmin(V) | 100 |
| Mechanical Electrical Endurance | 20000/10000 |
| Terminal Capacity Flexible/rigid Cable(mm2) | Bottom terminal:16-25 |
| Nuisance Tripping Resistance | 250A8/20μs |
| Ambient Temperature (ºC). | -5~+55 |
Technical Parameter
| Class of protection | class B | class C | class D |
| Rated Current (kA) | 40-65 | 15-40 | 8-15 |
| Reaction time(tr) | <25ns | <25ns | <25ns |
| Protection voltage level (Up) | <2.0kV | <1.8kV | <1.5kV |
| Max persistent working voltage (Ue) | 275/440VAC | 275/440VAC | 275/440VAC |
| Nominal discharge current(In) | 25kA(10/350)μs | 10kA,15kA (8/20)μs | 2.5kA,5kA(8/20)μs |
| Max discharge current (lmax) | 50kA(8/80)μs | 30kA.40kA (8/20)μs | 5kA,10kA(8/20)μs |
| Max reserve protection fuse | 250A gl | 125A gl | 63A gl |
| Short circuit tolerance | 10kA | 10kA | 10kA |
| Working ambient temperature range | -40C~70℃ | ||
| Rated Operating Voltage (V) | 230,400 | ||
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