MDH7 1P 2P 3P 4P 20KA 50KA type 1 whole house surge protector surge protector for welding
- · MODEL:
- MDH7-275
- · TYPE:
- T1+T2
- · Iimp:
- 7kA
- · In/Imax:
- 20kA/50kA
- · Conform to:
- IEC/EN 61643-11,GB/T 18802.11
- · Certification:
- UKCA/CE/CB/TUV/ROHS/REACH/CQC
- · Delivery Time:
- 1-100PCS within 7 days/100-1000PCS within 10 days
- · Payment Terms:
- L/C, T/T, Western Union, Paypal
- · Supply Ability:
- 100000 pcs per month
| Mday Type | MDH7-275 | MDH7-320 | MDH7-385 | MDH7-440 | ||
| Product Description | Type1+2 Surge Ptotective Device | |||||
| AC Operating Voltage | Un | 230Vac | 230Vac | 230Vac | 230Vac | |
| Maximum Continuous Operating Voltage | Uc | 275Vac | 320Vac | 385Vac | 440Vac | |
| Temporary Overvoltage Test Value TOV-5s[Tolerance] | Ut | 335Vac | 335Vac | 500Vac | 580Vac | |
| Temporary Overvoltage Test Value TOV-120min[Disconnection] | Ut | 440Vac | 440Vac | 650Vac | 770Vac | |
| Nominal Discharge Current(8/20μs) | In | 20kA | ||||
| Maximum Discharge Current(8/20μs) | Imax | 50kA | ||||
| Lightning Impulse Current(10/350μs) | Iimp | 7kA | 7kA | 7kA | 6.25kA | |
| Voltage Protection Level | Up | ≤1.5kV | ≤1.6kV | ≤1.8kV | ≤2.0kV | |
| Short-circuit current rating | Isccr | 25kA | ||||
| heat tripping device | Insertion | |||||
| Max. Backup Fuse | 125A gG Fuse | |||||
| Mechanical properties | ||||||
| Product size | see the photo as below | |||||
| Wiring method | screw terminal 2.5-25mm² | |||||
| Normal/Fault display | green/red | |||||
| Maximum remote signal load voltage/current | 250V/0.5A[AC],30V/3A[DC] | |||||
| Maximum cross-sectional area of remote signal connection line | 1.5mm2 | |||||
| Installation | 35mm DIN Rail | |||||
| Operating Temperature range | Tu | -40-+85° | ||||
| Protection level | IP20 | |||||
| Enclosure material | Thermoplastic material, compliant with UL94-V0 | |||||
Mday's adopts fully automatic machine double-sided soldering technology
Tripping side：
1. Automatic soldering technology for both sides, stable connection,and no false soldering.
2. Adopt chromium-free tin material, more green and environmentally friendly.
3. Double-layer thickened copper design, high flow, more stable.
Chip side：
1. Accurate parameters, every data is exactly the same as the actual product.
2. Use high-efficiency encapsulation chip design to improve heat dissipation performance and extend service life.
Mday signs partner agreement with EPCOS for next-generation surge，compact surge protector MOV development
Mday use thermoplastic materials and conform to UL94-V0.Every enclourse can pass the harsh glow wire test.
Wiring diagram
Mday’s Product size & Packing
Mday Can Provide OEM Service
-Customize with your LOGO /model / specific parameters on the product
-Customize with your LOGO /model / QR code/Product Code on the stickers
-Provide free packaging design and customization services
Mday’s Company Profile
All accessories of Mday are independently produced, including shell, copper parts and varistor chips.Therefore, the quality and production cycle of each order can be fully guaranteed.
Mday‘s test laboratory
Mday has testing equipment such as 10/350μs 40KA and 8/20μs 120KA Simulated lightning test equipment, High voltage TOV and low voltage TOV. If necessary, we can provide the parameters of each test for customers' reference.
Surge Protective Device Automatic Production Line
Mday have 3 automatic production lines, can control the production cycle and product quality of each batch of orders.
certificate
Mday has 7 authoritative certifications, namely TUV，UKCA，IEC，ROHS，SVHC，CE，CB. Also，Mday took the lead in applying for the German VDE certification certificate in 2024. It is worth mentioning that this is the first certified certificate in the domestic surge protective device industry. This move demonstrates the company's outstanding strength in technological innovation in spd fuse board and integrate with international standards.
Mday has participated in many exhibitions in recent years to meet new friends, establish new connections, and learn about the latest industry trends.
