M20 Waterproof Cable Connector, 2/3 Core Outdoor Buried Wire Junction Box, T Tee 3-Way Splitter

M20 IP68 Waterproof Cable Connector, Outdoor Underground Wire Quick Junction Splitter

Straight / 3-Way T-Type / 4-Way Cross Type,

Screw & Push-In TerminalsM20 IP68 waterproof cable connectors are designed for outdoor, underground and wet environment cable connection. Available in straight, 3-way T-type (Tee splitter) and 4-way cross types, with 2-core and 3-core options. Two wiring styles: screw terminal and push-in quick connection.

Cable outer diameter range options:

3–6.5mm, 5–8mm,7–10mm,9–12mm

Key Features: ✅ IP68 Waterproof Rating: Double internal & external rubber sealing rings, supports underground burial and continuous immersion in water, works safely in heavy rain. ✅ Solid Copper Core: Thickened solid copper conductors for stable conductivity. ✅ Flame Retardant Housing: Wide operating temperature range: -40℃ ~ +95℃, resistant to extreme cold and high heat. ✅ Universal for Hard & Soft Wires: Firm crimping, supports large current transmission with high safety. ✅ 2 Wiring Methods: Screw wiring for stable long-term projects; push-in quick wiring for fast on-site installation.

Wide Applications: Outdoor street lights, landscape fountains, water pumps, CCTV surveillance, marine & ship equipment, construction sites, instrumentation, communication electronics and aerospace related wiring projects.

Specification

Attribute Name	Attribute Value
Product Name	M20 IP68 Waterproof Cable Connector / Wire Junction Splitter
Thread Size	M20
Shape Type	Straight, T-type 3-way(Tee), Cross 4-way
Cable Core	2 Core,3 Core
Wiring Method	Screw Terminal / Push-In Quick Connection
Cable OD Range	3–6.5mm,5–8mm,7–10mm,9–12mm
Waterproof Grade	IP68
Conductor Material	Thickened Solid Copper
Housing Property	Flame Retardant
Working Temperature	-40℃ ~ +95℃
Application	Underground buried cable, outdoor lighting, fountain, pump, surveillance, construction wiring

FAQs

Q1: What does IP68 mean?

A: IP68 is the highest waterproof rating. It can be buried underground or submerged in water for long-term use, suitable for heavy rain and wet outdoor environments.

Q2: What is the difference between screw wiring and push-in type?

A: Screw terminal: more stable, better for long-term fixed engineering projects. Push-in type: no tools needed, fast wiring, convenient for quick field installation.

Q3: What cable outer diameter should I choose?

A: Please measure the outer diameter of your cable sheath first, then select the matching size: 3–6.5mm /5–8mm /7–10mm /9–12mm.

Q4: What are T-type and cross type connectors?

A: T-type (3-way / Tee splitter): one cable in, two cables out for wire branching. Cross type: 4-way connection for multi-line distribution. Straight type: simple end-to-end cable joint.

Q5: Can it work under extreme temperature?

A: Yes, operating temperature -40℃ to +95℃. It can withstand cold winter and high-temperature working conditions.

Q7: What is M20? A: M20 refers to a metric thread specification. "M" stands for metric thread, and "20" means the nominal outer diameter of the thread is 20 mm. It is the thread size of this waterproof cable gland.

⚠️ Note: M20 is the connector thread dimension, not the cable diameter. This cable gland supports cables with different outer diameter ranges, please check the product specs for compatible cable sizes.

Q8: What AWG wires fit this M20 cable gland? A: The mm values listed (3–6.5mm,5–8mm,7–10mm,9–12mm) refer to the outer diameter of the complete cable (with jacket), not the copper conductor AWG size. Approximate compatible AWG for each sealing range:

3–6.5mm cable OD: ~22 AWG to 14 AWG
5–8mm cable OD: ~18 AWG to 12 AWG
7–10mm cable OD: ~16 AWG to 10 AWG
9–12mm cable OD: ~14 AWG to 8 AWG

Reminder: Always check your finished cable outer diameter, not just conductor AWG. Cables with the same AWG may have different jacket thickness and outer diameter.