SAJ BC2-HV1
SAJ BC2-HV1 is the control module of the B2 high-voltage battery system.
- 96% depth of discharge on every B2/BU2 module size, 5.0 to 25.0 kWh nominal per stack.
- Stack 1 to 5 BU2 modules behind one BC2-HV1 control unit for up to 25.0 kWh on H2/HS2, or up to 8 BU3 modules for up to 40 kWh on HS3.
- IP65-rated enclosure for wall- or ground-mounted outdoor installation.
- CAN communication to the host inverter, natural convection cooling — no active thermal management to maintain.
- 30 A
- Max. charge current
- 30 A
- Max. discharge current
- IP65
- Ingress protection
- Manufacturer
- SAJ
- Model code
- BC2-HV1
- Item no.
- DLK-SAJ-BC2HV1
- Delivery
- Delivery to Germany · EUR 14.90 at checkout
Plan with BC2-HV1
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
- GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
- Datasheets on file for every item
- Within 24 h engineering response
- MOQ 1 unit · EU delivery
- Engineering-checked configurations
Size it to the load. Grow it later.
Modular stacks scale with the project instead of forcing a day-one guess.
One per stack
Every B2 system from 5 to 25 kWh carries exactly one BC2-HV1 on top of the module stack.
Inspect it before you spec it.
Official renders, installation photos and system panels for this model line.
Official manufacturer render.
SAJ B2 battery tower with BC2 control module on top, official render
SAJ B2 high-voltage battery stack, manufacturer render
Specifications
Every value exactly as published in the official BC2-HV1 documentation.
Documents
What this unit is approved to run with.
Every pairing below traces to a manufacturer compatibility list, by document version and date. A pairing only one maker lists is marked; we quote it, an engineer confirms it.
SAJ CH3-100K-T8
Item no. DLK-SAJ-CH3100KT8 On SAJ's compatibility list
SAJ CH3-110K-T8
Item no. DLK-SAJ-CH3110KT8 On SAJ's compatibility list
SAJ CH3-125K-T8
Item no. DLK-SAJ-CH3125KT8 On SAJ's compatibility list
SAJ CH3-75K-T6
Item no. DLK-SAJ-CH375KT6 On SAJ's compatibility list
SAJ CH3-80K-T6
Item no. DLK-SAJ-CH380KT6 On SAJ's compatibility list
SAJ CH3-99.9K-T8
Item no. DLK-SAJ-CH3999KT8 On SAJ's compatibility list
SAJ H2-15K-T3
Item no. DLK-SAJ-H215KT3 On SAJ's compatibility list
SAJ H2-20K-T3
Item no. DLK-SAJ-H220KT3 On SAJ's compatibility list
Pick the rating
SAJ family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Configuration 2
One BC2-HV1 control module plus one to five BU2-5.0-HV battery modules per stack. That gives 5.0 to 25.0 kWh nominal, matching the B2-5.0 through B2-25.0 system labels.
- Control module: exactly one BC2-HV1 per stack, whatever the module count; the SAJ B2 datasheet prints it in both the HV1 and HV5 tables.
- Arithmetic: capacity is module count times 5.0 kWh, so 5 x 5.0 kWh = 25.0 kWh at full height.
- Usable energy: SAJ rates 96 percent depth of discharge on every B2/BU2 module size.
The BU2-5.0-HV modules serve the SAJ H2 and HS2 hybrid inverters. The BU3-5.0-TV2-PRO is the HS3 stack module and pairs only with the HS3 three-phase hybrids (HS3-5K to HS3-12K-T2-W/G-PX); the two module types are not interchangeable.
- HS3 scaling: up to 8 BU3 modules per system per the HS3 datasheet, 8 x 5.0 kWh = 40 kWh maximum.
- H2/HS2 scaling: up to 5 BU2 modules behind one BC2-HV1, 25.0 kWh maximum.
- System voltage: the BU3-based HS3 stack runs 380 to 500 V with up to 30 A charge and discharge, model dependent.
Installation & wiring 1
Both module families carry an IP65 ingress rating. SAJ lists the B2 system as wall-mounted (optional) or ground-mounted, with defined climate limits.
- Temperature: for the B2 system, SAJ permits charging from 0 to 50 C and discharging from -10 to 50 C, at 0 to 95 percent non-condensing humidity.
- Handling: the BC2-HV1 head unit is 220 x 626 x 365 mm at 11 kg; each BU3 module is 420 x 695 x 170 mm at 53.0 kg, so plan the lift accordingly.
- Communication: the stack reports to the host inverter over CAN.
Operation & warranty 1
LiFePO4 cells with 96 percent depth of discharge on every B2/BU2 module size, per SAJ's datasheet.
- Thermal design: natural convection cooling, so there is no fan or active thermal management to maintain.
- Protection: the BC2-HV1 control module is rated for 100 A maximum fault current per the datasheet control-module rows.
- Cold-weather note: charging is specified from 0 C upward; below that the pack may discharge (down to -10 C) but not charge, per the stated ranges.
Availability & compliance 2
SAJ lists IEC 62619 for cell and pack, EN 62477-1, EN 61000-6-1/2/3/4 and UN38.3 for the B2 high-voltage battery system.
- Transport: UN38.3 is included in the listed set, relevant for freight planning on lithium batteries.
- Documents: the SAJ B2 HV1 / HV5 series high-voltage battery datasheet (AU, EN) is on file.
- Market specifics: for any further country-specific certificate requirements, confirm the certificate set with the quote.
Order the module as SAJ prints it: BU3-5.0-TV2-PRO. The -BASE-1 and -BASE-2 suffixes are third-party shelf labels for the with-base and without-base carton configurations, not separate SAJ models.
- What to do: state your base requirement on the quote and we confirm the carton configuration with SAJ before dispatch.
- Datasheet note: SAJ's B2 datasheet does not specify a base item, so the base is a carton-level option to settle at order time rather than a spec difference.
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Loads, tariff, site constraints - our engineers reply with a compatibility check and a sizing recommendation.
Contact project supportOr write to linker01@de-linker.com — attach your load profile if you have one.