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HRB 4.0mm Wire To Wire Waterproof Power Connector With Panel Mount

HRB A-M4084 panel mount 4.0mm IP67 waterproof wire-to-wire power connector, automotive certified dual-row feed-through connector with mounting flanges. Supports 16–24AWG wires, 15A/20A max current, -40~+125℃, ideal for cabinet wall-through power connection in energy storage, industrial control and EV systems.
 
  • Fully RoHS & REACH Compliant
  • LV214(VW75174)
  • IP67
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  • A-M4084F-2xN-W-P, A-M4084M-2xN-W

  • HRB

  • 8536909000

4.0mm PITCH WATERPROOF CONNECTOR WITH PANEL MOUNTING

Receptacle housing P/N definition

A-M4084F-2xN-W-P

①     ②      ③ ④ ⑤ ⑥

①A: Automotive regulation certification

②M4084F: HRB series, female housing

③2: Dual-row

④N: Number of pins per row, 3/4/5-pin   

⑤W: Housing color, W: White

⑥P: Panel mount


Plug housing P/N definition

A-M4084M-2xN-W

①      ②        ③④ ⑤

①A: Automotive regulation certification

②M4084M: HRB series, male housing

③2: Dual-row

④N: Number of pins per row, 3/4/5-pin   

⑤W: Housing color, W: White


Male Terminal P/N definition

A-T4084MPS-X-X

        ①           ②③

①T4084MPS: HRB series, male terminal

②X: Wire Gauge options: AWG16-24


Female Terminal P/N definition

A-T4084FPS-X-X

        ①          ②③

①T4084FPS: HRB series, female terminal

②X: Wire Gauge options: AWG16-24

Key fetures

  • Wire gauge range: 16–24 AWG (1.5–0.22 mm² cross-sectional area)

  • Available cavity layouts: single row: 2/3/4/5 and dual-row: 6/8/10 positions

  • Connector System :Wire-to-wire

  • IP67 Waterproof & Dustproof: Full dual protection from dust and water; shields against moisture, rain and temporary immersion.

  • Built-in mounting flanges with screw holes, securely fixed on cabinet panels/bulkheads to withstand wire pulling and vibration, protecting internal terminals from loose contact.

  • Wall-through design acts as stable external power interface for inverters, energy storage cabinets and industrial control devices, achieving consistent IP67 sealing after panel installation.


Exploded views

The waterproof seal, terminals, housing, and single-wire waterproof plug are designed in coordination to ensure installation efficiencyandsealingreliability


Exploded view of HRB 4.0mm waterproof wire-to-wire power connector, showing housing, terminals and waterproof sealing components





1. New Energy EV / Two-Wheelers / Lithium Energy Storage

For BMS power supplies, PACK interconnections, on-board chargers, PTC heaters and DC cooling fans inside battery packs.

Performance specs: 10–15A rated current, IPX7 waterproof rating, operating temperature range -40℃ to +125℃, anti-vibration structure and anti-mismating key design.

2. High-Power Outdoor LED Lighting / Landscape Lights / Grow Lights

Suitable for wall washers, flood lights, high-mast lamps and modular power supplies.

The 15A current rating supports loads of 300–500W. The compact 4.0mm pitch design fits neatly inside lamp housings.

3. Power Tools / Garden Machinery / Outdoor Robots

Ideal for motor and battery connections on lawn mowers, leaf blowers, chainsaws, electric wheelchairs and cleaning robots.

Mandatory features: IPX7 waterproof, 15A current capacity, secure locking latching system, with outstanding resistance to drops, dust and water exposure.

4. Industrial Controls / Low-Voltage Inverters / Servo Drives

Applied to power supply ports of compact PLC I/O modules, sensor bus lines, valve islands and external power interfaces for servo drivers.

Panel-mount versions serve as wall-through power ports for equipment, while wire-to-wire variants are for field wiring installation.

5. Photovoltaics / Energy Storage / Inverter Systems

Used for low-voltage DC circuits of PV strings, combiner boxes and residential energy storage units.

Equipped with IPX7 sealing, 15A carrying capacity and reverse polarity prevention, meeting long-term service requirements for outdoor installations.

6. Smart Home Appliances / White Goods

For high-power component connections on heat pumps, clothes dryers, dishwashers and water heaters.

Resist steam, water leakage and oil contamination. IPX7 waterproof & 15A rated current have become standard configurations for mid-to-high-end home appliances.

4.0mm pitch waterproof connector application



Part 1: Technical FAQs 

Q1: What is the max current rating of A-M4084 waterproof wire-to-wire connector?

A1: Two terminal options are available. Standard copper terminals support up to 15A AC/DC; high-conductivity copper terminals reach 20A AC/DC, with a rated voltage of 600V AC/DC for power transmission.

Q2: What wire gauge and wire insulation diameter does this connector fit?

A2: Compatible wire cross-section ranges from 0.22–1.5 mm² (16–24 AWG). The applicable wire insulation outer diameter is 1.1–2.4 mm, matching most automotive, lighting and energy storage harness wires.
Q3: What waterproof grade and temperature range can this connector withstand?
A3: It achieves IP67 dustproof & waterproof performance to block dust, moisture, rain splash and temporary immersion. Operating temperature covers -40 ℃ ~ +125 ℃, suitable for harsh under-hood, outdoor and high-temperature equipment environments.
Q4: What cavity layouts are available for the M4084 series?
A4: Single-row versions support 2/3/4/5 positions; dual-row versions provide 6/8/10 positions. Both male plug housing (A-M4084M) and female receptacle housing (A-P4084F) adopt the same layout specifications.
Q5: What materials are used for housing and terminals, and are they automotive-certified?
A5: The housing is made of PA material; terminals are pure copper. All models carry automotive certification marked with the prefix "A" in part numbers, stable for long-term vibration and thermal cycling.
Q6: How does the sealing structure guarantee reliable waterproof performance?
A6: Waterproof seals, copper terminals, PA housing and single-wire waterproof plugs are structurally matched as a whole. Coordinated assembly design improves installation efficiency and long-term sealing stability without water ingress risk after full mating.

Q: What is the difference between panel-mount and non-panel-mount wire-to-wire connectors, and how do I choose the right type for my project?

A: Core Differences as below 3 points:

  • Installation Method & Structure

Panel-mount connectors come with integrated mounting flanges and screw holes, designed to be fixed firmly onto equipment cabinet walls, control box panels or bulkheads. Non-panel-mount (free-hanging) versions have no mounting lugs; they only rely on wire harness tension to stay in place after mating, with no ability to attach to equipment housings.

  • Mechanical Stability & Load Resistance

Panel-mount models bear pulling force from wiring via the panel instead of internal terminals, effectively avoiding terminal loosening or pin deflection caused by frequent wire tugging. Free-hanging connectors transfer all wire pull stress directly to contact terminals, making them unsuitable for scenarios with frequent wiring movement.

  • Application Scenarios

Panel-mount variants serve as fixed wall-through power interfaces for industrial PLCs, servo drivers, energy storage cabinets and charging equipment. Non-panel-mount connectors are used for floating wiring inside equipment, such as internal vehicle harnesses, lamp internal circuits and power tool battery connections.


Selection Guide

Choose panel-mount connectors if you need a fixed power port penetrating equipment casing, and the wiring will face regular pulling, vibration or external force.

Choose standard non-panel-mount wire-to-wire connectors for internal floating wiring with no need to fix the connector to cabinet panels, where wires only bear minor static tension.

Part 2: Purchasing FAQs

Q1: Where can I download the official datasheet of A-M4084 series connector?

A1: Please send an inquiry to our sales team, and we will provide the complete datasheet including part number definition, dimensional drawings, electrical parameters and assembly exploded views for your project evaluation.
Q2: What color options are available for the M4084 housing?
A2: Standard housing color is white (marked "W" at the end of PN). Custom housing colors can be developed upon your mass order demand.
Q3: Can I get samples of male and female housings plus matched terminals for testing?
A3: Yes, we support sample provision for verification. If all items are out of stock, we will arrange dedicated machine production and quote a one-time sample cost with sample lead time of 2–3 weeks.
Q4: What is the HS code of this 4.0mm waterproof wire-to-wire power connector?
A4: The unified HS code for the A-M4084 series is 8536909000, applicable for export customs declaration globally.
Q5: What industries and applications are this connector widely used for?
A5: Ideal for new energy vehicles, two-wheelers, lithium energy storage, outdoor LED lighting, power tools, industrial control, PV storage and mid-to-high-end smart home appliances with IP67 power connection demands.
Q6: What is the standard lead time for mass production orders?
A6: Standard in-stock items can be shipped within 5–7 working days. For out-of-stock models requiring production runs, the mass lead time will be confirmed separately after receiving your order quantity.



Current Rating
Common Copper: 15A AC DC max.
High Conductivity Copper: 20A AC DC max.
Rated Voltage
600V AC DC
Temperature Range
-40 ºC to +125 ºC
Wire Size
0.22~1.5mm2
Waterproof Grade
IP67
Wire Insulation Diameter
1.1~2.4mm
Material
Housing: PA
Terminal: copper
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