Name: 20A Industrial Obtain UL certification Circular Connector 3+4Pin Waterproof M19 Connector
Brand: Shenzhen Ulinkcon Technology Co., Ltd.
SKU: M19
Price: Negotiable USD
Availability: InStock

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20A Industrial Obtain UL certification Circular Connector 3+4Pin Waterproof M19 Connector

Product Details:

Place of Origin:	China
Brand Name:	Ulinkcon
Certification:	CE/Rohs/TUV/UL
Model Number:	M19

Payment & Shipping Terms:

Minimum Order Quantity:	Negotiation
Price:	Negotiation
Packaging Details:	1.Plastic bag;2.Carton;3.As per customer's requirements
Delivery Time:	3~6working days
Payment Terms:	T/T,D/P,L/C,D/A,Western Union
Supply Ability:	100000 pairs Montly

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Detailed Product Description

Pin:	3+4Pin Power&Data	Current Rating:	15+5A
Rated Voltage:	300V	Material:	Nylon
Protection Level:	IP67 Waterproof	Operating Temperature:	-40~+105℃
Highlight:	20A Industrial M19 Connector , UL certified waterproof circular connector , 3+4Pin waterproof M19 connector

20A Industrial UL Certified Circular Connector 3+4Pin Waterproof M19 Connector

Product Overview

This M19 3+4Pin industrial circular waterproof connector is specially designed for integrated power supply and signal transmission of industrial equipment. It features a 3-pin power + 4-pin signal split pin structure with a rated current of 20A. Certified by authoritative UL safety standards, it offers excellent waterproof, dustproof, anti-interference and aging resistance performance. This high-reliability connection solution is ideal for outdoor and harsh industrial environments including industrial automation and smart equipment applications.

Key Features

UL Certified & Fully Compliant - UL safety certified with UL94 V-0 flame retardant grade, compliant with RoHS and CE standards for global export
3+4Pin Split Design - Combined 3 power pins + 4 signal pins for simultaneous 20A high-power supply and stable signal transmission
20A High Current Capacity - Rated working current of 20A and voltage of 300V with gold-plated brass conductive pins
IP67 Waterproof & Dustproof - Multi-layer sealing rubber ring locking structure resistant to rainwater, dust, and oil pollution

Main Features

Push lock quick release system
Multicore options: 2Pin, 3Pin, 4Pin, 5Pin for Power
Power signal combinations: 3+2Pin, 3+3Pin, 3+4Pin, 3+5Pin, 3+9Pin and 2+20Pin
Signal options: 6Pin, 7Pin, 8Pin, 9Pin, 10Pin, 11Pin, 12Pin, 14Pin, 16Pin and 18Pin
Field assembly version: both wire to wire and wire to board options
Current rated 20A for long time working
Cable assembly service supported
OEM/ODM welcome

Technical Specifications

Electrical Parameters
Number of Poles	3+4Pin
Current Rating	15+5A max.
Voltage Rating	300VAC max
Durability Voltage	1500VAC @ 60 s.
Technical Parameters
Contact Resistance	10 mΩ max
Insulation Structure	500 MΩ at 500VDC
Operating Temperature	-40°C ~ +105°C
IP Class	IP67 (1m / 30min) when mated
Mold Material	PA66
Contact/Terminal Material	Gold Plated Brass
Seal Material	Silicone

Operation Parameters

Voltage Rating	600VAC max
Current Rating	20A max
Min Wire Size OD	3.0mm ~ 6.0mm
Max Wire Size OD	8.0mm ~ 10.0mm
Max. Cable Cross Section Area	0.5mm² ~ 2.5mm²

Application Industries

Growth Lights
Communications Application
Product coding machines
Inventory product coding
Inkjet systems
Solar System
Industrial inkjet equipment
Electric power equipment
Laboratory forensic & pathology equipment
Communications equipment
Heavy machinery

Design Specifications

Frequently Asked Questions

Q: Are you a factory or trading company?

A: We are a factory. Located in Ulinkcon Industrial Park, Bao'an District, Shenzhen, China

Q: Who is responsible for customs clearance? Do you provide necessary documents?

A: We will provide complete customs clearance documents (commercial invoice, packing list, bill of lading, certification reports). Customs clearance fees and duties are borne by the buyer (EXW/FOB terms). We can assist with document preparation if needed.

Q: How do you guarantee product quality?

A: We implement strict quality control throughout the production process: raw material inspection, in-line testing, and final sampling inspection. All products come with a 12-month warranty against manufacturing defects.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

T*s

Brazil Feb 1.2026

Helpful (457)

I was impressed by how attentive and responsive the seller was. Before ordering, they helped me confirm all the specs I needed. After delivery, they checked in to make sure I was satisfied. The waterproof connectors are durable and reliable, and the customer service is top-tier. I couldn’t ask for a better buying experience.

L*n

Malaysia Sep 28.2025

Helpful (1071)

I wasn’t sure which model to choose for our humid climate, so I contacted support before ordering. They were very helpful and guided me step by step. After delivery, they checked in to make sure I was satisfied. The connectors work perfectly in our weather—no leaks, great service!

M*n

United States Nov 28.2024

Helpful (3160)

We’ve ordered these waterproof connectors three times already. They work great for outdoor LED lighting and industrial equipment. We’ve had no water ingress issues at all, even during heavy rain. The bulk price is good, shipping is fast, and the seller is very responsive. We’ll keep buying.

Tag:

Contact Person: Miss. Gina

Tel: +86 075523019434

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