MC4 In-line Fuse 1 MA701
Installation and Operation Manual
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 this assembly instructions and the technical data.
- Safely store the assembly instructions and pass them on to subsequent users.
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.
Intended Use
The In-line Fuses interrupt DC circuits in case of fault currents or over-currents.
Prerequisites for Installation and Assembly
- NEVER use an obviously damaged connector or In-line Fuse.
- ONLY tools and procedures approved by Stäubli shall be used.
Mating and Disconnecting
- ALWAYS de-energize the photovoltaic system before mating or disconnecting the connectors.
- NEVER disconnect the connectors under load.
- NEVER connect male or female part of Stäubli connectors with connectors of other manufacturers.
- NEVER reconnect a string without an In-line Fuse, if the In-line Fuse was disconnected from this string.
Do NOT Modify NOR Repair Component
- Do NOT modify component.
- Replace defective components.
Technical Data
Image shows the Stäubli MC4 In-line Fuse MA701, a black cylindrical device with two integrated connectors at each end. Two separate black sealing caps, labeled PV-BVK4 32.0716 and PV-SVK4 32.0717, are also displayed.
| Parameter | Value |
| Product Designation | PV-K@LF/6N#UL |
| Safety Spacer Ring | See page 7 |
| Voltage Rating | DC 1000 V or DC 1500 V 1500 V rating: 1500 V; No marking: 1000 V |
| Test Voltage | DC 1000 V Model: 6 kV (50 Hz, 1 min.) DC 1500 V Model: 9 kV (50 Hz, 1 min.) |
| Safety Class | II |
| Overvoltage Category / Pollution Degree | CATIII/3 |
| Mating Connectors | Only genuine Stäubli connectors shall be used! (e.g., PV-KST4/..., PV-KBT4/... "MC4", PV-KBT4-EVO 2..., PV-KST4-EVO 2... "MC4-Evo 2") |
| Rated Current gPV | DC 1000 V: 1 – 30 A DC 1500 V: 1 – 20 A; 25 A; 30 A (Refer to product or packaging for variant details) |
| Ambient and Storage Temperature Range | -40 °C to +50 °C |
| Transportation/Storage Relative Humidity | < 70% |
| Degree of Protection (IP) | Mated: IP65/IP68 (1 m, 1 h) Unmated: IP2X |
| Maximum altitude above sea level for operation | 5000 m |
| Fire Protection Class | UL94:V-0 |
| UL File Numbers | E510009: Models PV-K/1500ILF25/6N0055UL and PV-K/1500ILF30/6N0055UL E474445: all others |
| Insulation Material | PC/glass-filled PA |
| Contact Material | Copper, tin plated |
| Max. Contact Resistance of the Connector | < 0,25 mΩ |
Tools/Assembly Materials Required
For integration into a PV cable harness system:
Image of two specialized tools for connecting and disconnecting Stäubli MC4 connectors. The first tool, labeled PV-MS, is a robust black plastic lever. The second tool, PV-MS-PLS, appears similar in function and design.
- For MC4 connectors: Assembly and unlocking tool PV-MS, order no. 32.6024
- Assembly and unlocking tool PV-MS-PLS, order no. 32.6058
Note: Refer to Operating Instructions MA270, available at www.staubli.com/electrical.
Where to Find ILF Product Markings
Diagram of the MC4 In-line Fuse with numbered callouts indicating locations of product information: 1. UL file number, 2. Product designation (e.g., PV-K/1500ILF30), 3. Lot number and production date, and 4. Product ratings (e.g., Voltage: DC 1500 V, Short Circuit Withstand: 25 kA).
Installation Procedure
Attention – ELECTRIC SHOCK HAZARD! Do not disconnect the In-line Fuse under load nor connect it in an electrical circuit that is under load.
Step-by-step visual guide for installing the In-line Fuse. Image shows a tool being used to separate two connected MC4 connectors. The In-line Fuse is then shown being connected to the separated connectors. The text confirms the fuse is non-directional.
Illustration shows the fuse housing with integrated slots for cable ties, aiding in cable management.
Attention
A visual warning symbol with a red 'X' indicates that connectors that are not fully engaged are not permitted, as this can lead to a permanent deflection of clips and thus to a potential loss of the locking function. The assembly has to be verified at all times. A green checkmark symbol implies correct engagement.
Spacer Ring
For PV-K/1500ILF25/6N0055UL and PV-K/1500ILF30/6N0055UL models, affixing the safety spacer ring PV-ILF-SR is mandatory (one ring per In-line Fuse).
Attention: Safety spacer rings are mandatory to maintain the tripping characteristic of these In-line Fuses in compliance with UL, whenever 2 or more are installed (bundled) next to each other.
Illustrations demonstrating the mounting of the PV-ILF-SR safety spacer ring. The process involves sliding the cable through the ring opening, positioning the fuse housing, and snapping the ring's clips onto the housing's ribs until fully engaged. A close-up view emphasizes verifying the ring mounting clips' full engagement.
Notes on Installation
General Notes on Installation
- Unmated connectors must be protected from environmental impact (moisture, dirt, dust, etc.) with sealing caps (socket order no. 32.0716; plug 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 directly from the cable seal without bending or stress. Refer to cable manufacturers specification for minimum bending radius.
Diagram illustrating correct cable routing. A cable is shown exiting straight from the connector seal for a minimum of 20 mm. A bent cable is shown as not permitted.
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 that 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 and Support Location
Stäubli Electrical Connectors, Inc.
100 Market Street
Windsor, CA 95492/ United States
Phone: +1 707 838 0530
Fax: +1 707 838 2474
Email: ec.us@staubli.com
Website: www.staubli.com/electrical
Global Headquarters
Stäubli Electrical Connectors AG
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
