Description
The ABB 3BHL000986P3012(5SDD2545L0001)is a high-current,high-voltage dual thyristor(SCR)module designed for demanding phase-controlled rectification and inversion in medium-voltage industrial applications.It integrates two inverse-parallel thyristors in a single press-pack housing,enabling bidirectional current flow—ideal for regenerative drives,static exciters,and cycloconverters.Built with ABB’s advanced diffusion-bonded semiconductor technology,it delivers exceptional surge handling,low thermal resistance,and long service life under continuous high-load conditions.
Commonly found in ABB ACS6000 MV drives,EXC6000 static excitation systems,and HVDC converters,this module is a critical component in power conversion stages requiring precise control of multi-megawatt loads.
Key Parameters
Parameter Value
ABB Order Code 3BHL000986P3012
Semiconductor Type 5SDD2545L0001
Configuration Dual inverse-parallel thyristors(anti-parallel SCRs)
Repetitive Peak Off-State Voltage(VDRM/VRRM)4500 V
Average On-State Current(IT(AV))2500 A(per thyristor,180°conduction,Tc=85°C)
RMS On-State Current(IT(RMS))~3900 A
Surge Current(ITSM,10 ms)47 kA
Gate Trigger Current(IGT)≤250 mA
Housing Flat press-pack,isolated base(electrically insulated from heatsink)
Cooling Double-sided forced-air or liquid cooling(mounted between heat sinks)
Weight~8.5 kg
Applications ACS6000 MV drives,EXC6000 exciters,SVCs,rolling mills,mine hoists
Application Scenarios
In a copper mine in Chile,an ABB ACS6000 drive controlling a 12 MW hoist motor suffered repeated downtime due to failing thyristor stacks.Vibration and dust had degraded older modules,causing gate misfires during acceleration.The maintenance team replaced all units with genuine ABB 3BHL000986P3012(5SDD2545L0001)modules featuring enhanced gate insulation and improved thermal interface materials.Post-upgrade,the system operated continuously for 18 months with zero thyristor-related faults—even during 100%torque reversals.The mine extended its preventive maintenance interval by 40%,reducing labor costs and increasing ore output.
Similarly,in a hydroelectric plant in Brazil,the EXC6000 static exciter was upgraded using these modules to handle increased reactive power demands after turbine modernization.The 4500 V blocking capability provided ample margin over the 3.3 kV DC link,ensuring reliability during grid faults.
Technical Advantages
Press-Pack Design:Eliminates wire bonds,reducing failure risk under thermal cycling and vibration.
Electrically Isolated Base:Simplifies mounting and improves safety in high-potential environments.
High di/dt&dv/dt Immunity:Suitable for fast-switching applications without snubbers in many cases.
Matched Pairs:Both SCRs are tested and binned for consistent switching behavior—critical for current balance in parallel stacks.
Legacy+Support:Although used in older ABB systems,this module remains in production and fully supported.
Common Replacement&Compatibility
Used In:
ABB ACS6000(Medium Voltage Drive)
ABB EXC6000(Static Excitation System)
ABB Static VAR Compensators(SVC)
Custom cycloconverters for rolling mills
Direct Cross-Reference:
5SDD2545L0001≡3BHL000986P3012
Formerly listed as 5SDD 2545L0001(space variant)
Not Interchangeable With:Lower-current variants like 5SDD2045L0001(2000A)—verify ratings!
Installation&Maintenance Tips
Mounting:Apply uniform pressure(typically 30–35 kN)using a calibrated hydraulic press tool—uneven force causes hot spots.
Thermal Interface:Use ABB-recommended thermal compound or pre-cut pads;avoid air gaps.
Gate Wiring:Use twisted-pair shielded cables<30 cm long to prevent EMI-induced false triggering.
Testing:Perform static loop tests and dynamic firing checks after installation using ABB’s DriveComposer or EXC tools.
Storage:Keep in dry,anti-static packaging;modules are moisture-sensitive(MSL 3).
Support&Lifecycle
While newer ABB drives(e.g.,ACS1000,Ability™-based systems)use IGBTs or IGCTs,the 3BHL000986P3012 remains in active production due to global installed base demand.ABB and certified partners provide:
100%electrically tested units
Functional validation reports(VDRM,IGT,leakage)
Application engineering support for retrofit projects
12-month warranty
⚠️Beware of counterfeit or refurbished modules on gray markets—always source from authorized channels.
Contact us for genuine,tested ABB 3BHL000986P3012/5SDD2545L0001 thyristor modules—with full traceability,test data,and expert support for your ACS6000,EXC6000,or custom power system.Ensure uptime in your most critical megawatt-scale applications.
