Safety Instructions
Importance of the Assembly Instructions
NOT following the assembly and safety instructions could result in life-threatening injuries due to electric shock, electric arcs, fire, or failure of the system.
- Follow the entire assembly instructions.
- Use and install the product only according to these assembly instructions.
- Safely store the assembly instructions and pass them on to subsequent users.
Intended Use
PV DC connection cable assembled on one or both sides with MC4 or MC4-Evo 2, for installation or prepared for further assembly.
Requirements for Personnel
Only an electrician or electrically instructed person may assemble, install, and commission the system.
- An electrician is a person with appropriate professional training, knowledge, and experience to identify and avoid the dangers that may originate from electricity. An electrician is able to choose and use suitable personal protective equipment.
- An electrically instructed person is a person who is instructed or supervised by an electrician and can identify and avoid the dangers that may originate from electricity.
Prerequisites for Installation and Assembly
- NEVER use an obviously damaged product.
- ONLY tools and procedures approved by Stäubli shall be used.
- When mounting a connector, the respective assembly instructions of the connector (see technical data table) must be observed.
Mating and Disconnecting
Live parts can remain energized after isolation or disconnection.
- ALWAYS de-energize the photovoltaic system before mating and disconnecting the connectors.
- NEVER disconnect the connectors under load.
- NEVER connect male or female part of Stäubli connector with connectors of other manufacturers.
Do NOT Modify NOR Repair Component
- Do NOT modify component.
- Replace defective component.
Required Tools
For mating and disconnecting connectors, the following tools are recommended:
- PV-MS-PLS Assembly and unlocking tool: 1 set = 2 pcs. Order No. 32.6058
- Open-end spanner set PV-MS: Order No. 32.6024
Mating and Disconnecting
Note: Unmated connectors must be protected from any contamination using Stäubli sealing caps (PV-BVK4, Order No. 32.0716; PV-SVK4, Order No. 32.0717).
Mating
Mate the cable coupler until a “click” can be heard. Check correct engagement by lightly pulling on the connector (maximum pulling force: 20 N).
[Diagram: Shows two connectors being pushed together until they click. A subsequent illustration shows a red cross over a partially connected connector, indicating it is not permitted, and a green checkmark over a fully connected connector, indicating correct engagement.]Attention: Assembly of not fully engaged connectors is not permitted as this could lead to a permanent deflection of clips and thus to a potential loss of the locking function. The engaged connector locking function has to be verified.
Disconnecting
Use PV-MS-PLS/2 or PV-MS to disconnect.
[Diagram: Shows the PV-MS-PLS tool being used to disconnect two connected solar connectors.]Notes on Installation
General Notes on Installation
- Unmated connectors must be protected from environmental impact (moisture, dirt, dust, etc.) with sealing caps (socket PV-BVK4, order No. 32.0716; plug PV-SVK4, order No. 32.0717).
- Do not mate contaminated connectors.
- Connectors must not come into contact with any chemicals.
Cable Routing
Cable management must allow a minimum of 20 mm of cable that exits straight from the cable seal without bending or stress. Refer to cable manufacturer specification for minimum bending radius.
[Diagram: Shows a cable exiting a connector's cable seal, indicating a minimum of 20 mm of straight cable exit. A bent cable is shown with a red cross over it, indicating it is not allowed.]In particular, the application notes according to Annex A of IEC 62930 must be observed.
Contaminated/Damaged Connectors
- Do not allow connectors to be contaminated by the environment (e.g. soil, water, insects, dust).
- Do not allow the connector to be contaminated on its surface (e.g. stickers, paint, heat shrink tubing).
- Do not allow that the connector is directly on the roofing surface.
- Do not allow that the connector is at the lowest point of cabling where water can collect.
- Do not allow that the connector is in standing water.
- Do not allow cable ties to be mounted directly on the connector body.
Mechanical Stress
- Check that the connectors are not subjected to a permanent mechanical tensile load or vibration.
- Connectors shall not be under strain from cable management.
Manufacturer Information
Manufacturer: Stäubli Electrical Connectors AG
Address: Stockbrunnenrain 8, 4123 Allschwil, Switzerland
Tel: +41 61 306 55 55
Fax: +41 61 306 55 56
Email: ec.ch@staubli.com
Website: www.staubli.com/electrical
[Note: The original document also contains copyright and version information, e.g., "© by Stäubli Electrical Connectors AG, Switzerland - MA711 - 08.2025, index b Marketing Communications - Subject to alterations". This is informational and not critical for the assembly instructions.]
[Note: The document also includes a reference to "THE ORIGINAL MC4 SINCE 1996" and states that "MC4 and MC4-Evo are registered trademarks owned by Stäubli."]
