What is a DC Surge Protective Device？
DC Surge Protective Devices (SPD) are essential for safeguarding electronic systems from voltage spikes, ensuring both reliability and efficiency. Their ability to absorb and redirect excess voltage helps ...
• UV resistance and VO flame retardant material
• Contact Silver Plating, silver layer thickness up to the industry's highest standards
• Arcing Time in 3 ms
• No Polarity
• Lockable at OFF position
• IEC/EN60947.3 standard and AS 60947.3
• Provide 5-year warranty product guarantee
| MAIN PARAMETERS | ||||||
| Rated Ccurrent(A) | 13 | 20 | 25 | 40 | 50 | |
| Rated insulation voltage(Ui) | 1500 | 1500 | 1500 | 1500 | 1500 | |
| Rated thermal current(lth) | 32 | 40 | 55 | 55 | 55 | |
| Rated impulse withstand voltage(Uimp) | 8000V | |||||
| Rated short-time withstand current (1s)(lcw) | 780A | |||||
| Maximum cable cross sections (incl. jumper) | ||||||
| Solid or stranded | 4-16mm² | |||||
| Flexible | 4-16mm² | |||||
| Flexible (+ multicore cable end) | 4-16mm² | |||||
| Torque | ||||||
| Tightening torque terminal screws M4. | 12-1.8Nm | |||||
| Tightening torque single hole mounting nut M16 | 2.0-2.3Nm | |||||
| Tightening torque knob screws M3 | 0.5-0.7Nm | |||||
| Switching on or off torque | 0.9-1.3Nm | |||||
| General parameters | ||||||
| Knob positions | 12 o'clock OFF, 3 o'clock ON (9 o'clock OFF ,12 o'clock ON) | |||||
| Electrical Life | Actua | 3000 Cycles | ||||
| Standard | 300 Cycles | |||||
| Mechanical Life | Actua | 10000 Cycles | ||||
| Standard | 10000 Cycles | |||||
| Number of DC poles | 2 or 4 (6/8 optional) | |||||
| Distance of contacts (per pole) | 8mm | |||||
| Operation temperature | -40 to +85°C | |||||
| Store temperature | -40 to +85°C | |||||
| Pollution degree | 3 | |||||
| Overvoltage category | Ⅱ | |||||
| IP rating of shafte and mounting nut | IP65 | |||||
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