Select the diode current rating according to the normal operating current and electrical design of the photovoltaic circuit. The selected version should provide adequate current capacity while maintaining the required reverse-current blocking function.
Solar Connector
1000V Inline Solar Diode Connector for Reverse-Current Protection – UH-PC-MD01
Model UH-PC-MD01
UH-PC-MD01 is a 1000V DC inline solar diode connector designed to block reverse current in photovoltaic wiring. Available in 10A, 15A, 20A and 30A versions, the integrated diode assembly provides a compact plug-in solution for PV strings and parallel solar circuits requiring directional current control.
- Reverse-Current Blocking
- 10A / 15A / 20A / 30A
- 1000V DC Rating
Rated Voltage
1000V DC
Rated Current
10A ~ 30A
Function
Reverse-Current Blocking
Degree of Protection
IP67, correctly mated
Ambient Temperature
-40°C to +85°C
Overall Length
113.3 mm
Install the diode connector in the specified current-flow direction for correct reverse-current blocking.
Overview
Product Overview
UH-PC-MD01 integrates a blocking diode into an inline 1000V DC solar connector, allowing current to pass in the intended direction while restricting reverse current through the photovoltaic circuit. Four diode current configurations are available: 10A, 15A, 20A and 30A.
The connector is intended for applications such as parallel PV strings and other solar DC circuits where reverse-current blocking is required. The housing uses PC insulation with IP67 protection when correctly mated. Tin-plated copper contacts are supplied as standard, while silver-plated copper contacts are available on request.
Features
Key Product Features
Reverse-Current Blocking
10A / 15A / 20A / 30A
1000V DC Rating
Integrated Blocking Diode
The internal diode provides one-way current control to help prevent reverse current through the photovoltaic connection.
10A to 30A Options
UH-PC-MD01 is available in 10A, 15A, 20A and 30A diode configurations for different photovoltaic circuit requirements.
Plug-In Inline Design
The diode is integrated inside the connector housing, allowing reverse-current blocking to be added directly into an existing matched PV connector path.
1000V DC Application
The connector housing is rated for 1000V DC photovoltaic systems.
IP67 Mated Protection
Correct mating provides IP67 environmental protection for applicable outdoor photovoltaic installations.
Two Contact Finishes
Tin-plated copper contacts are supplied as standard, while silver-plated copper contacts are available on request.
Technical Data
Technical Specifications
Electrical, material and environmental specifications for the UH-PC-MD01 PV diode connector.
Electrical Characteristics
| Parameter | Value |
|---|---|
| Rated Voltage | 1000V DC |
| Rated Current | 10A ~ 30A |
| Function | Reverse-Current Blocking |
| Current Direction | Unidirectional |
| Connector Type | Inline Diode Connector |
| Cable Size | 4 mm² / 12 AWG |
| Configuration | Inline Connector |
Diode & Contact
| Parameter | Value |
|---|---|
| Diode Type | Blocking Diode |
| Contact Material | Tin-Plated Copper |
| Optional Contact Finish | Silver-Plated |
| Diode Forward Voltage | Not specified |
| Diode Reverse Voltage | Not specified |
Environmental & Mechanical
| Parameter | Value |
|---|---|
| Degree of Protection | IP67, correctly mated |
| Ambient Temperature | -40°C to +85°C |
| Insulation Material | PC |
| Housing Color | Black |
| Overall Length | 113.3 mm |
Selection
Choose the Correct UH-PC-MD01 Diode Rating
| Internal SKU | Diode Current | Rated Voltage | Function | Standard Contact |
|---|---|---|---|---|
| UH-PC-MD01-10A | 10 A | 1000 V DC | Reverse-Current Blocking | Tin-Plated Copper |
| UH-PC-MD01-15A | 15 A | 1000 V DC | Reverse-Current Blocking | Tin-Plated Copper |
| UH-PC-MD01-20A | 20 A | 1000 V DC | Reverse-Current Blocking | Tin-Plated Copper |
| UH-PC-MD01-30A | 30 A | 1000 V DC | Reverse-Current Blocking | Tin-Plated Copper |
Mechanical Data
Dimensions
UH-PC-MD01 uses an inline housing with an overall length of approximately 113.3 mm. The internal blocking diode assembly is positioned between the two connector interfaces. Refer to the dimensional drawing for complete housing and diode placement details.
| Dimension | Value |
|---|---|
| Overall Length | 113.3 mm |
| Units | mm |
Applications
Where This Product Is Used
Solar PV Systems
Protection, connectivity and distribution components for photovoltaic arrays, string circuits and related solar DC systems.
UH-PC-MD01 is intended for photovoltaic DC circuits where current must be restricted to one direction, particularly in parallel PV string arrangements and other array connections where reverse current from adjacent strings or the common DC bus needs to be blocked.
Installation
Installation Guidance
1. Confirm the intended current-flow direction of the photovoltaic circuit before installing the diode connector.
2. Select the 10A, 15A, 20A or 30A UH-PC-MD01 version according to the operating current and electrical design of the PV circuit.
3. Isolate the photovoltaic circuit before connecting or removing the inline diode connector.
4. Install UH-PC-MD01 in the specified current-flow direction. Reversing the diode orientation will block the intended forward current path.
5. Mate both connector interfaces completely and verify that the locking structures are fully engaged.
6. Check connector orientation, polarity and complete mating before energizing the photovoltaic circuit.
7. Do not connect or disconnect the diode connector while the circuit is under electrical load.
System Components
Compatible Accessories
Products selected here are intended to be used together with this product.
1000V Inline Fuse Solar Connector for 10 × 38 mm PV Fuse – UH-PC-MF01
UH-PC-MF01 is a 1000V DC inline fuse solar connector designed to add replaceable overcurrent protection directly into photovoltaic string wiring. The connector accommodates a 10 × 38 mm PV fuse link and combines an Ø4 mm contact system, PC insulated housing and IP67 protection when correctly assembled and mated.
View Product
1000V Solar Connector for 2.5 – 6 mm² PV Cable – UH-PC-MC01
UH-PC-MC01 is a 1000V DC solar connector for field-assembled PV cable connections, available in 30A / 2.5 mm², 45A / 4 mm² and 50A / 6 mm² configurations. It uses crimp contacts, PC insulation and IP67 protection when correctly assembled and mated for outdoor photovoltaic wiring.
View Product
Compact 1000V Solar Connector for 2.5, 4 & 6 mm² PV Cable – UH-PC-MC02
UH-PC-MC02 is a compact 1000V DC solar connector for field-assembled photovoltaic cable connections. It is available in 30A / 2.5 mm², 45A / 4 mm² and 50A / 6 mm² configurations, combining crimp termination, PC insulation and IP67 protection when correctly assembled and mated.
View ProductImportant Notes
Install the diode connector in the specified current-flow direction for correct reverse-current blocking.
FAQ
Frequently Asked Questions
What does the UH-PC-MD01 solar diode connector do?
UH-PC-MD01 integrates a blocking diode into the photovoltaic connector path. It allows current to flow in the intended direction while restricting reverse current through the PV circuit.
Which current ratings are available?
UH-PC-MD01 is available in 10A, 15A, 20A and 30A versions. Select the diode current rating according to the operating current and electrical design of the PV circuit.
Does installation direction matter?
Yes. A blocking diode conducts in one direction, so UH-PC-MD01 must be installed according to the specified current-flow orientation. Incorrect orientation can prevent the intended PV output current from flowing.
Is a solar diode connector the same as a fuse connector?
No. A diode connector controls the direction of current flow, while a fuse connector provides overcurrent protection by opening the circuit when the installed fuse operates. See UH-PC-MF01 – 1000V Inline Fuse Solar Connector for the fuse-protected version.
Where is a blocking diode connector typically used?
It is commonly used in photovoltaic circuits where reverse-current blocking is required, including certain parallel string arrangements and DC array connections.
Are silver-plated contacts available?
Yes. Tin-plated copper contacts are supplied as standard, while silver-plated copper contacts are available on request.
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