DKPM Solar Disconnect Switch
INTRODUCTION
DKPM Rotary PV Disconnect Switch is mainly used for circuit isolation between solar panel and inverter / Battery, suitable for residential or commercial photovoltaic power generation systems of 1-20kW. The waterproof performance of this product reaches IP66, the maximum current is 40 Amp, and the inner Switch of the product can be installed inside the inverter as the control of the inverter incoming line. The arcing time of the Disconnect Switch is less than 8 milliseconds, which makes the solar photovoltaic power generation system safer. In order to ensure its stability and long service life, the accessories of the product are made of high-quality materials. The shell is made of PC plastic, which is UV-proof, waterproof, dust-proof and impact-proof. The built-in high-quality magnet has a good arc-extinguishing effect. The internal copper parts The current can reach 40A. In the leading position in the safety of similar products.
FEATURES
● IP66 waterproof and dustproof, anti-ultraviolet, high hardness enclosure
● DC1500V 45A Solar Terminals
● The handle can be locked in the "closed" position, and can be locked
● Five types: 35MM DIN Rail Mount; with M12 Cable Gland ; with solar terminal; 2 Input 1 Output With Solar Terminal; 2 Input 2
● Output With Solar Terminal
● 4 Pole Switch can improve withstand voltage through series connection, various wiring methods
● International standards: IEC60947-3, AS60947.3,
● Product Category: DC-PV2, DC-PV1, DC-21B
ELECTRICAL TECHNICAL PARAMETERS
| Product Drawing |  |
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| Model | DKPM-40 | DKPM-M16 | DKPM-1S | DKPM-2S1 | DKPM-2S |
| Rated Insulation Voltage (Ui) | 600V | 1500V | 600V | ||
| Poles | 4 | 2 | 2 | 3 | 4 |
| Rated Current | 40 Amp | 40 Amp | 40 Amp | 20/40 Amp | 20 Amp |
| Rated Short-time withstand current (Icw) | 1kA , 1s | ||||
| Rated Impulse Withstand voltage (Uimp) | 8.0kV | ||||
| Polarity | No polarity, + and - polarity can be switched to each other | ||||
| Electrical Life | 2000 | ||||
| Mechanical Life | 10000 | ||||
| Waterproof And Dustproof Grade | IP20 | IP66 | |||
| Installation Type | 35MM DIN Rail | Vertical / Horizontal Screw Fixing | |||
| Ambient Temperature | -40°C~+85°C | ||||
| Degree Of Pollution | 3 | ||||
| Standards Compliant | IEC60947-3, AS60947.3 | ||||
| Use Category | DC-PV2 / DC-PV1 / DC-21B | ||||
| Applied Photovoltaic Array | 1 / 2 | 1 | 2 | ||
SWITCHING CONFIGURATIONS
| Type | 40 | 2S1 | 2S | 1S/M16 |
| Wiring Graph |  |
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RATED VOLTAGE / RATED CURRENT
| Type | 300V | 600V | 800V | 1000V | 1200V | 1500V |
| DKPM-40 | 40A | 30A | 20A | 15A | 10A | 8A |
| DKPM-1S | 40A | 30A | 20A | 15A | 10A | 8A |
| DKPM-M16 | 40A | 32A | 21A | 13A | 10A | 8A |
| DKPM-2S1 | 32A | 32A | - | - | - | - |
| DKPM-2S | 32A | 27A | - | - | - | - |
ENVIRONMENT OF USE
● Use at an altitude of 2000 meters and below, and use with derating above 2000 meters.
● The ambient air temperature of the product is within -40°C to +85°C, and the 24-hour average temperature does not exceed +40°C;
● The core switch of the product is installed in the distribution box, and waterproof measures should be taken.
INSTALLATION INSTRUCTIONS
lt is important to ensure that all electrical connections ( including factory connections ) are tight enough that all terminal screws are tightened firmly.
IIt is recommended that for DC, multi-stranded cable, crimp ferules are used to ensure that the wires do not become loose. Loose cables can cause excessive watt loss and generate excessive heat causing serious damage to the switch.
After installing and wiring the switch, the testing switches, on and off several times, are necessary for users and user must feel and hear the positive snap actions.
If the switch cannot be felt and heard to operate correctly then it is important that the switch is cannot be installed.
WHY SHOULD PHOTOVOLTAIC SYSTEMS CHOOSE THIS SWITCH?
AC circuits have frequencies of 50/60Hz, with rises and falls. When the AC current is disconnected, the resulting current is suppressed as the voltage rapidly drops to zero.
When the DC current is cut off, the voltage is constant, the current will not drop to zero quickly, and the DC current will generate a large arc. The higher the voltage, the stronger the ionization power (the longer the arc).
DKPM rotary DC isolating switch can quickly disconnect the circuit within 0.1s, and has enough arc-proof distance to connect and disconnect the circuit by rotating the double-break contact assembly.
OFF-GRID SOLAR SYSTEM
Outline And Installation Dimensions
