BSM-SA3 | EV Charger Cable Management System | Swivel Arm Balancer | Heavy Duty

EV Charger Cable Management System (Heavy Duty Swivel Arm Balancer) is designed to support and counterbalance the weight of heavy charging cables, preventing sagging, twisting, or tangling. By effectively reducing operator labor intensity and improving charging efficiency, they are widely used in DC charging stations.

  • Designed for long-lasting performance, our EV charging station cable management system boasts a corrosion-resistant aluminum housing, ensuring enhanced reliability and durability.
  • Custom length and colour 

Heavy Duty Cable Management System for DC Chargers

Enhance your EV charging stations with the BESSUN DC Cable Management System

This heavy duty swivel arm balancer, is a Cable Management System keeps  DC charging cables  off the ground, reducing touchpoints on the charging equipment and delivering a more consumer-friendly charging experience. It improves safety, keeps cables organized, and helps extend the lifespan of both the cable and the charging connector.

  • Better cable organization – Keeps DC charging cables neat, tangle-free, and off the ground.
  • Protects ports & cables – Reduces strain, bending, and twisting on the charging cable and charging connector, extending service life.
  • Safer, easier charging – Fewer touchpoints and no charging cables dragging on the ground create a more comfortable and safer user experience.

Technical Data

Material: Cast aluminum alloy with surface coating

Net Weight: approx. 5.6 kg

Working load: 30 kg

Max load: 100kg @600 mm

Main Arm Length: from 300 mm to 1000 mm

Sub-Arm Length: 300 mm

Main Arm Preload Setting: Adjustable from 5N to 25N

Service Life: Reciprocating cycles ≥ 100,000 times

Rotation Angel: main arm 180°; sub-arm: 90°,135°

BSM-SA3-EV-Charging-Cable-Management-System-Swivel-Arm-Balancer

Technical Drawing

Cable-Management-System-Swivel-Arm-Balancer_left
Cable-Management-System-Swivel-Arm-Balancer_right

Need 3D drawings? Contact us at  info@bes-sun.com —we are happy to provide! 

Quick Installation Demo

This video demonstrates how to quickly install cable clamps onto the swivel arm balancer — part of an efficient cable management system for EV charging stations. With the pre-installed quick connector and separately packed cable clamp, the setup process is fast and user-friendly.

Why it is better:

1) Quick clamp installation and disassembly – save time on setup and maintenance

2) Simple step-by-step process

3) Ideal for EV Charger cable management System

Explore more EV charger cable clamps from Bessun.

Quality Test

Max. load test: 100 kg for 48 hours 

Endurance test: 100,000 cycles.

FAQ

What is the working load?

Please see table below.

Model

Working Load

BSM-SA1

30 kg

BSM-SA2

15 kg

BSM-SA3

30 kg

BSM-SA4

30 kg

Yes. For typical CCS1/CCS2 cables of 7 m length and 43 mm² conductor, including the plug, the total weight is ~13.5–16 kg. Therefore, the 30 kg working load is sufficient with a safe margin.

Please see table below. Take 100kg@600mm for example, it means the product can handle up to 100 kg at a 600 mm reach, including occasional pulling or impacts. It is not for long-term use,.

Model

Max. Load

BSM-SA1

80 kg@600mm

BSM-SA2

30 kg@600mm

BSM-SA3

100 kg@600mm

BSM-SA4

80 kg@600mm

Q: What corrosion resistance tests have been performed?
A: Tested in a neutral salt spray (NSS) chamber.

Q: What is the minimum requirement?
A: 240 hours salt spray exposure without red rust.

Q: What is the actual test result?
A: 720 hours NSS, no red rust.

1)Endurance at room temperature

Q: What is the endurance requirement at room temperature?
A: 50,000 cycles without malfunction.

Q: What test has been performed?
A: 100,000 cycles at 30 kg load at room temperature.

Q: What was the result?
A: After 100,000 cycles: no deformation, unit functions well.

2)Endurance at +50 °C@90% relative humidity

Q: What test has been performed?
A: Static load test

  • +50 °C, 24 hours, 100 kg load, no breakage.

Q: Does this fulfill the 50,000-cycle requirement at +50 °C@90% RH?
A: No, only static testing has been done; cycling test not yet performed.

Q: Can you perform the 50,000-cycle test at +50 °C@90% RH?
A: Currently not, as a very large climatic chamber is required.
We kindly ask if this test can be carried out in your test laboratory.

3)Endurance at -40 °C

Q: What test has been performed?
A: Static load test at:

  • -40 °C, 24 hours, 100 kg load, no breakage.

Q: Does this fulfill the 50,000-cycle requirement at -40 °C?
A: No, only static testing has been done; cycling test not yet performed.

Q: Can you perform the 50,000-cycle test at -40 °C?
A: We currently cannot perform this cycling test.
We kindly ask if this endurance test can be carried out in your test laboratory.

No MOQ. The sample lead time is 10 ~ 12 days.

To ensure we provide the best possible solution, it would be great to receive the following information:

  • Cable Length
  • Cable Diameter
  • Total Cable Weight

The main different points are as below:

  1. the max. load of BSM-SA1 is 80 kg@600mm, while BSM-SA3 is 100kg@600mm.
  2. the profile of BSM-SA1 is 60×40 mm, while BSM-SA3 is 80x40mm. BMS-SA3 is more suitable for big size DC charging stations. BSM-SA3 features a more robust appearance that is better suited for larger charging stations, for example, charging stations with a length ≥ 800 mm.

Yes, we support custom lengths and colors. Custom orders typically take 20–25 days to produce. However, for testing purposes, we recommend using our in-stock samples if available, as this can save both time and cost.

Yes, we can design and produce a housing for you based on your EV charging station specifications. However, given the shipping costs, we would suggest that you manufacture it locally (at your end).

Yes. Please let us know the diameter of your charging cable. 

Many premium DC chargers on the market use a door-closer style cable management system, where the cable is guided by a mechanism hidden inside the charger housing. While this solution can look integrated, it also adds design complexity and cost, and is often tied to a specific charger model.

 

A swivel arm balancer Cable Management System, like the one from BESSUN, offers a more flexible and cost-effective alternative that can be applied to most DC charging stations, including pedestal, wall-mounted, and dispenser-type chargers.

 

Advantages of Swivel Arm Balancer vs Door-Closer Style Cable Management System

Compared with cable management systems based on door-closer mechanisms inside the charger housing, a swivel arm balancer offers several practical and technical advantages:

  • Wider compatibility
    Swivel arm balancers can be mounted on DC chargers, without depending on a specific cabinet design. This makes them suitable for both new projects and retrofit upgrades, across different charger brands.
  • More cost-effective
    The structure is simpler and does not require a custom internal mechanism inside the charger. This helps reduce hardware cost and integration cost, which is especially important for large rollouts and multi-site projects.
  • Easy maintenance
    All key components (swivel arm balancer, cable clamp/holder) are accessible from the outside. Technicians can inspect, adjust, or replace parts quickly without opening the charger or affecting its IP rating.
  • Better charging cable handling
    The arm and balancer is designed to support the weight and stiffness of DC charging cables, keeping them off the ground while controlling bending radius and torsion. This helps protect the charging cable and charging connector, extending service life.
  • Consistent, user-friendly operation
    Drivers simply pull the charging cable along the direction of the swivel arm balancer. The movement feels intuitive and keeps the cable path clear, improving safety and overall charging experience.
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