Engineered for Extremes: AHUA M25 Waterproof Connectors Screw Fixing UL SAA TUV Connector

The AHUA M25 Wire-to-Wire Field Assembly Connector is engineered for reliable power and signal transmission in demanding industrial environments. Designed with gold-plated brass contacts, IP67/IP68 ingress protection, and field-installable screw terminals, this series delivers rugged durability, easy maintenance, and global safety certifications — making it ideal for outdoor lighting, solar systems, automation equipment, and more.

Key Features at a Glance:

• 2 to 9 pin configurations available

• IP67 / IP68 waterproof rating (dust-tight & submersible)

• Gold-plated brass contacts for low resistance & corrosion resistance

• Screw-fixing terminal (Field Assembly, Thread, Screw)

• Cable OD range: φ7.0mm – 13.0mm

• Rated voltage: up to 500V | Current: up to 25A

• Mechanical life: 3,000+ mating cycles

• Operating temperature: -40°C ~ +105°C

• Certified by UL, SAA, TÜV SÜD

Technical Specifications

• 01122 = Screw terminal version

• 01112 = Solder terminal version

• All models marked with ▲ symbol carry UL, SAA, TÜV certifications

•  AH-M25-2502FMZ/MFZ01122                                 AH-M25-2503FMZ/MFZ01122

Current Rating: 25A                                           Current Rating: 25A

Voltage Rating: 300V                                        Voltage Rating: 300V 

Wire Gauge: ≤2.5mm²                                        Wire Gauge: ≤2.5mm²

Support Cable Outside Diameter: 4.5-7.5mm    Support Cable Outside Diameter: 4.5-7.5mm

• AH-M25-1504FMZ/MFZ01122                                 AH-M25-1005FMZ/MFZ01122

Current Rating: 15A                                           Current Rating: 10A

Voltage Rating: 300V                                        Voltage Rating: 300V 

Wire Gauge: ≤1.5mm²                                        Wire Gauge: ≤1.0mm²

Support Cable Outside Diameter: 4.5-7.5mm    Support Cable Outside Diameter: 4.5-7.5mm

• AH-M25-1006FMZ/MFZ01122                                 AH-M25-0509FMZ/MFZ01112

Current Rating: 10A                                           Current Rating: 05A

Voltage Rating: 300V                                        Voltage Rating: 300V 

Wire Gauge: ≤1.0mm²                                        Wire Gauge: ≤0.75mm²

Support Cable Outside Diameter: 4.5-7.5mm    Support Cable Outside Diameter: 4.5-7.5mm

The Specification of M25 UL/TUV/SAA Series  Connector:

For this connector, it named M25 connector, and it is use for assemble cable, so there would be some requirements about the cable:

(In the UL type connector we have 2PIN &3PIN models, for each PIN number the external dimensions are all the same.)

2PIN Connectors and 3PIN connectors model are the same, so the length about M25 connector is about 113mm(This is the length of the male and female connectors when assembled), the head width is 29 mm(Suitable for environments with a width of 29 mm or more).

That is precisely why the width of the connector head determines the maximum wire size that can be accommodated inside it. For this connector it can support the cable outside diameter is between 8.0mm-12.0mm, if below 8.0mm the connector doesn't secure the cable properly, water may enter the connector, leading to a short circuit; and if over 12.0mm the cable cannot be inserted into the connector, so the connector cannot be used to connect the cable.

This part disassembles the connector, revealing its internal structure and materials:

Basic Body: The main gray cylindrical housing made from high-strength engineering plastic, providing mechanical protection and insulation.

Waterproof Rubber Core: The red/pink ring visible between the two halves. This is the critical sealing element that achieves the IP67/IP68 waterproof rating by compressing to fill gaps.

Core Terminal: The gold-plated pins inside the housing.

(Male / Female): Indicates the series includes both male (pins) and female (sockets) options.

Gold-Plated Brass: Specifies the terminal material is brass with a gold plating, ensuring low contact resistance, excellent conductivity, and corrosion resistance.

Loosen the Tightening Nut: The knurled gray caps on both ends. These are twisted open to insert the cable and then tightened to secure the seal and terminals.

This image is a step-by-step installation guide for the AGHUA M25 Waterproof Connector, showing how to join two cables.

It demonstrates the process in four simple stages:

1. Disassembled State (Top): Shows the connector fully taken apart into its two halves, revealing the internal components: the locking nuts, gray outer casings, and the gold-plated terminals ready for wires.

2. Wire Insertion (Second from top): Shows the two halves brought together with the wires (yellow, blue) inserted into the terminals. You can see the red waterproof rubber seal in the center.

3. Housing Joined (Third from top): The outer casings are brought together and partially screwed in.

4. Fully Locked (Bottom): The final assembled state. Both ends are fully tightened, creating a completely sealed, waterproof joint.

In short: This diagram visually instructs the user to insert wires into the terminals, push the housings together, and tighten the nuts to create a secure, waterproof connection.

Here is a concise breakdown of the image:

This is a Size Chart for M25 Waterproof Connector Seal Rings. It helps users select the correct rubber gasket based on their cable thickness to ensure a watertight seal.

If you are not sure what the cable's OD, here are some cable gauge for your reference, (this is some common cable gauge it is just for your reference, Pls refer to the specifications of your own cable).

And there are also other PIN for you choose, like 4PIN/5PIN/6PIN..., check the wire gauge and the current and make a design, then we will help you to choose a solution according to the design.Thanks!