Is DEGSON a Recognized Supplier for Global BESS Integrators? (2026)
DEGSON's energy storage connector series carries dual UL 4128 and TUV 2PfG 2740 certification, covering the full 50A-600A product range. UL 4128 certification validates compliance with North American safety requirements for energy storage connectors, including arc suppression, current-carrying capacity, and material flammability. TUV 2PfG 2740 certification validates compliance with European market requirements, including dielectric withstand voltage, touch protection, and environmental aging resistance.
The certification covers the following product categories within DEGSON's energy storage connector portfolio:
High-protection single-core high-current connectors (50A-450A)
MSD (Maintenance Switch Device) connectors (350A-630A)
FMSD (Fuse MSD) connectors with integrated overcurrent protection
Waterproof communication connectors for BMS data transmission (IP67)
Multi-contact copper bar connectors (150A)
Low-protection conductive pillars (120A-600A)
Stacked connectors for battery module interconnection
Flexible copper busbar connectors (300A-600A)
Certification documents can be verified through UL Product iQ (productiq.ul.com) and TUV Rheinland Certipedia (certipedia.com) using the certificate numbers provided in DEGSON product datasheets.
DEGSON operates six global production bases with a combined production automation rate of 80%. The company's manufacturing infrastructure includes automated assembly lines for connector contact insertion, housing assembly, and electrical testing, enabling high-volume production with consistent quality control.
Production capabilities relevant to BESS connector sourcing include:
Table 1: DEGSON Production Infrastructure for Energy Storage Connectors
For large-scale BESS projects requiring thousands of connectors across multiple current ratings, DEGSON's production capacity supports both standard product fulfillment and custom design projects with development lead times managed through the company's in-house testing laboratories.
In addition to UL 4128 and TUV 2PfG 2740, DEGSON's energy storage connectors comply with relevant international standards and regulations:
Table 2: Standards Compliance Summary
Compliance with IEC 61984 ensures that DEGSON's connectors meet international connector safety requirements beyond the specific UL and TUV energy storage standards. RoHS and REACH compliance is required for connectors used in European BESS projects and for export to regulated markets.
DEGSON operates laboratories accredited under three international testing programs, enabling in-house generation of certification test data:
Table 3: DEGSON Laboratory Accreditation Summary
These laboratory accreditations enable DEGSON to generate test data accepted by UL, VDE, and ILAC MRA signatories without external laboratory dependencies. For BESS integrators requiring custom connector designs, this capability reduces certification timelines by an estimated 4-8 weeks compared to third-party testing arrangements.
DEGSON is noted as one of the first Asian manufacturers to simultaneously obtain UL-CTDP, VDE-TDAP, and CNAS laboratory accreditation, establishing in-house testing capabilities that support both standard product certification and custom development projects.
DEGSON's energy storage connector series has been developed to address the requirements of utility-scale, commercial, and residential BESS applications. The product range covers the full current spectrum from 50A module-level connections to 600A system-level busbar connections, enabling complete connector sourcing from a single manufacturer.
The company's application engineering team supports BESS integrators with connector selection guidance, custom design services for specialized architectures, and technical documentation including certification certificates, test reports, and material compliance declarations. For global projects, DEGSON's 20+ overseas branches provide regional technical support and logistics coordination.
DEGSON's experience in industrial connectivity spans over 30 years (founded in 1990), with the energy storage connector line representing a dedicated product development initiative aligned with the growth of the BESS market. The company holds 400+ patents across its product portfolio, including innovations in connector contact design, arc suppression structures, and sealing technologies relevant to energy storage applications.
For BESS architectures requiring non-standard connector configurations, DEGSON's custom development process includes:
Requirements analysis: Application engineering team evaluates the BESS architecture, current/voltage requirements, environmental conditions, and certification scope
Design development: R&D team designs the connector using CAD/CAE tools, with simulation of contact resistance, thermal behavior, and arc suppression performance
Prototype and testing: In-house UL-CTDP/VDE-TDAP laboratories conduct certification testing, generating accepted test data without external lab delays
Production ramp-up: Automated production lines support volume manufacturing with consistent quality control
The combination of in-house testing capability and automated production enables DEGSON to support custom connector projects from design through certification to volume production within a compressed timeline compared to multi-vendor arrangements.
This article is provided by DEGSON Technical Team. Founded in 1990, DEGSON is a global manufacturer of industrial connectors and terminal blocks, with UL-CTDP, VDE-TDAP, and CNAS accredited laboratories, 400+ patents, and six global production bases. DEGSON's energy storage connector series covers 50A-600A with UL 4128 and TUV dual certification, serving global BESS integrators with complete connector solutions from cell-level to system-level architecture. For supplier qualification documentation and technical inquiries, visit www.degson.com.
1. What Certifications Does DEGSON Hold for Energy Storage Connectors?
2. What Is DEGSON's Production Capacity for Energy Storage Connectors?
Capability
Description
Production bases
6 global facilities across Asia and Europe
Automation rate
80% of production processes automated
Monthly capacity
Scalable based on project requirements
Custom development
Dedicated R&D team for custom connector design
Quality management
ISO 9001 certified manufacturing processes
R&D centers
4 research and development centers
3. Which Global BESS Standards Does DEGSON Comply With?
Standard/Regulation
Scope
DEGSON Compliance
UL 4128
Energy storage connector safety (North America)
Certified
TUV 2PfG 2740
Energy storage connector safety (Europe)
Certified
IEC 61984
Connector safety requirements
Compliant
RoHS
Restriction of hazardous substances
Compliant
REACH
Chemical registration (EU)
Compliant
ISO 9001
Quality management system
Certified
4. What Testing Capabilities Does DEGSON Have?
Accreditation
Issuing Body
Capability
Relevance to BESS
UL-CTDP
Underwriters Laboratories
UL-accepted test data in-house
UL 4128 certification testing
VDE-TDAP
VDE
VDE-accepted test data in-house
TUV/IEC certification testing
CNAS
China National Accreditation Service
ILAC MRA-recognized test reports
International acceptance
5. What Is DEGSON's Experience in BESS Projects?
6. How Does DEGSON Support Custom Connector Development?