Description
xStäubli MC4-Evo 2 Solar Connector Pair 4-6mm² 1500V Original MC4
The Original Stäubli MC4-Evo 2 is the connector the MC4 name comes from. This male and female pair is made for 4mm² and 6mm² solar PV cable, rated to 1500V DC and up to 53A, and uses Stäubli's MULTILAM contact technology for a consistently low contact resistance over the life of the array. It is the right choice for installers who want the genuine connector at every joint in the string, not a lookalike.
Key Features
- Genuine Stäubli MC4-Evo 2, the original MC4 connector system
- For 4mm² and 6mm² PV cable (12 and 10 AWG)
- Rated 1500V DC, 45A on 4mm² and 53A on 6mm² to IEC 62852
- MULTILAM contact technology with contact resistance below 0.2 mΩ
- IP65 and IP68 (1 m, 168 h) when mated, for permanent outdoor use
- Operating range of -40 °C to +85 °C, UV and ammonia resistant
- Positive locking system to prevent accidental separation
- TÜV Rheinland certified to IEC 62852 and UL recognised to UL 6703
Product Overview
Almost every watt your panels produce passes through a connector, and connectors spend decades under modules and on rooftops through heat, frost, rain and UV. A poorly made or badly crimped connector can develop rising contact resistance over time. That means heat, power loss and, in the worst case, a melted connector and a fault that is costly to find on a finished roof. Choosing the original connector at installation costs pennies compared with tracing a failed joint later.
MC4 is Stäubli's own connection system. The MC4-Evo 2 uses MULTILAM contacts, spring-loaded louvres that keep many contact points pressed against the pin, so resistance stays low and stable through years of thermal cycling. The copper contacts are tin plated and the housing is UL94-V0 rated PA.
Each pair gives you one male and one female connector, ready to crimp onto 4mm² or 6mm² PV cable. The locking system holds the mated pair together until it is deliberately released, and once mated the connection is rated IP65 and IP68, suitable for installation under modules, on roofs and on ground-mounted arrays.
Applications
- Solar panel string connections
- Making up PV extension leads with 4mm² or 6mm² cable
- Connecting strings to inverters, charge controllers and combiner boxes
- Replacing damaged or non-original connectors on existing arrays
- Residential, commercial and ground-mounted PV systems up to 1500V DC
What Is Included
- 1x Stäubli MC4-Evo 2 female connector (socket) for 4 to 6mm² cable, with contact
- 1x Stäubli MC4-Evo 2 male connector (plug) for 4 to 6mm² cable, with contact
- Cable and crimping tool are not included
Installation and Safety Notes
Installation should be carried out by a qualified solar installer or electrician. Crimp the contacts with the crimping tool specified by Stäubli for this contact size and follow Stäubli assembly instructions MA298, available from staubli.com. Check that your cable's outer diameter suits the connector's cable gland, as an incorrect crimp or a gland that does not grip the cable will compromise both the electrical connection and the IP rating.
Never connect or disconnect under load. Isolate the DC circuit with a suitable DC isolator before working on any string. Mate only with connectors from the Stäubli MC4 connector family, as mixing brands is not covered by Stäubli's certification. Unmated connectors are IP2X only, so fit sealing caps to any connector left unmated outdoors. The complete system must use correctly sized cable, suitable overcurrent protection, isolation and surge protection, and comply with BS 7671 and local regulations.
Specifications
xModel Information
| Parameter | Value |
| Model | Stäubli Original MC4-Evo 2 connector pair, 4 to 6 mm² |
| Connector family | Original MC4-Evo 2 |
| Connector system | Ø4 mm |
| Supplied as | Pair: 1 male and 1 female |
Electrical Specifications
| Parameter | Value |
| Rated voltage | 1500V DC (IEC and UL) |
| Rated current, IEC 62852 | 45A (4 mm²), 53A (6 mm²) |
| Rated current, UL 6703 | 35A (12 AWG), 50A (10 AWG) |
| Overvoltage category | III |
| Protection class (IEC) | II |
| Contact resistance | Below 0.2 mΩ |
| Contact system | MULTILAM |
| Contact material | Copper, tin plated |
Cable and Termination
| Parameter | Value |
| Cable cross-section | 4 mm² and 6 mm² (12 and 10 AWG) |
| Termination | Crimping |
| Crimp opening width | 5.8 mm |
General Specifications
| Parameter | Value |
| Ambient temperature range | -40 °C to +85 °C |
| Upper limiting temperature | 115 °C (IEC) |
| Transport and storage temperature | -30 °C to +60 °C, relative humidity below 70% |
| Degree of protection, mated | IP65 / IP68 (1 m, 168 h) |
| Degree of protection, unmated | IP2X |
| Locking system | Locking type |
| Insulation material | PA |
| Flame class | UL94-V0 |
| Maximum altitude | 5000 m above sea level |
| Temperature level (IEC TS 63126) | Level 2 |
| Female coupler dimensions | Approx. 67.1 mm long, Ø18.8 mm |
| Male coupler dimensions | Approx. 71.4 mm long, Ø18.8 mm |
Certifications
| Parameter | Value |
| IEC 62852 | TÜV Rheinland certified to IEC 62852:2014+Amd.1:2020 (R 60127169) |
| UL 6703 | UL recognised component (E343181) |
| Ammonia resistance | TÜV Rheinland certified to 2 PfG 1911/03.2011 (Q60139020-0001) |
| Further approvals | JET, cTÜVus |
| Markings | CE, UKCA |
Important
| Parameter | Value |
| Warning | Do not disconnect under load |
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.