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| Rated Current (In) | 16A | 25A | 32A |
| Function | Isolation, Control | ||
| Standard | IEC 60947-3, DC-21B | ||
| Number of Poles | 4P | ||
| Maximum Frame Current Rating | 32A | ||
| Rated Operational Voltage (Ue) | 1200V DC | ||
| Rated Insulation Voltage (Ui) | 1200 V DC | ||
| Rated Impulse Withstand Voltage (Uimp) | 8 kV | ||
| Mechanical Durability | 20,000 operations | ||
| Electrical Durability | 500 operations | ||
| Terminal Screw Specification | M4 | ||
| Tightening Torque | 2.5 N·m | ||
| Suitable Conductor Cross-Section | 4–16 mm² | ||
| Ambient Temperature Range | -25 ℃ to +85 ℃ | ||
UKPD32-SMAH1 DC Isolator Switch 4P 32A 1200V DC Solar Switch Disconnector DIN Rail Mount
UKPD32 Series Photovoltaic DC Isolating Switch with a maximum rated voltage of DC 1200V and a rated current of up to 32A.
It is widely used in string PV inverters, controllers, 1–4 circuit combiner boxes, and other equipment to provide electrical isolation and control protection on the DC side of photovoltaic systems. Capable of load-breaking operation.
UKPD32 1200VDC isolator switch features efficient DIN rail mounting and a modular design that supports combined assembly.
Built with flame-retardant materials and ultra-fast arc extinction (<3ms), it ensures superior safety in high-voltage DC systems.
Certified to IEC 60947-3 standards, this 4-pole switch offers versatile wiring options and reliable performance for DC-21B applications at 16A, 25A, and 32A.
Ideal for use in control cabinets, renewable energy systems, and industrial power distribution.
Free Quote NowKey Features
- Rated Voltage: 1200VDC
- DIN Rail Mounting (Modular & Combinable Design)
- Flame Retardant
- Arc Extinguishing Time: <3ms
- Compliant with IEC 60947-3 Standard
- 4-Pole Configuration (Multiple Wiring Options Available)
- DC-21B Application: 16A, 25A, 32A at 1200VDC
Application
- Solar Farms & Residential PV Installations
- Battery Energy Storage Systems (BESS)
- UPS and Backup Power Systems
- Provides electrical isolation and control protection for the DC side of photovoltaic (PV) systems
- Widely used in string PV inverters and solar controllers.
- Suitable for 1–4 circuit PV combiner boxes
- Enables safe load-breaking operation in DC applications
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