Description

SAJ BC2-HV1 is the control module of the SAJ B2 high-voltage battery system. It is the top unit of a stack of one to five BU2-5.0-HV1 battery modules and carries the circuit breaker, the display, the start button and the battery and communication ports to the SAJ H2 inverter.

SAJ BC2-HV1

  • Control module of the B2 stack: one BC2-HV1 for one to five BU2-5.0-HV1 battery modules.

  • Circuit breaker, display with status ring and state of charge, and start button on the unit.

  • Maximum fault current 100 A.

  • 200 × 626 × 365 mm (H × W × D), 11 kg, IP65.

Ports to the modules and to the inverter.

BAT+ / BAT- port and communication port to the inverter, B+ / B- port and communication port to the battery modules, and a BAT+ / BAT- port and a communication port for parallel connection.

Display and start button.

The ring light is solid green in normal state, breathing green during initialisation or waiting, solid red on an error and breathing red during a software upgrade; the LED panel shows the state of charge. The battery starts with the circuit breaker on and the main switch held for 2 to 3 seconds.

On top of the stack, fixed to the wall.

SAJ

On top of the stack, fixed to the wall.

The BC2-HV1 is the top unit of a B2 stack. It is fixed to the wall with two locking brackets and M10*80 screws; the holes are 13 mm in diameter and 65 mm deep.

Technical data

BC2-HV1 in figures

Height
200 mm
Weight
11 kg
Max. fault current
100 A
Ingress protection
IP65
About these specifications

The control module of the B2 stack.

One BC2-HV1 heads a B2 stack of one to five BU2-5.0-HV1 battery modules, 5.0 to 25.0 kWh rated energy. It measures 200 × 626 × 365 mm (H × W × D), weighs 11 kg and has a maximum fault current of 100 A.
Control module
Control module
BC2-HV1
Max. fault current
100 A
Dimensions (H × W × D)
200 × 626 × 365 mm
Weight
11 kg

Documents

SAJ B2 Series (5.0-25.0) HV1/HV5 Battery Datasheet (EN, BEU)Datasheet · PDF · ENSAJ B2 high-voltage battery, B2-5.0 to B2-25.0 with BU2-5.0 and BC2-HV1: datasheet (German)Datasheet · PDF · DESAJ B2 Series (5.0-25.0) HV1/HV5 High Voltage Battery User Manual (EN)Manual · PDF · ENSAJ B2 battery systems and BC2-HV1 control module: EU declaration of conformity (multilingual)Certificate · PDF · Multilingual

Product questions

What is in the BC2-HV1 package?

The battery control unit package includes: battery control unit (1), side cover (2), documents (user manual and packaging list), grounding cable (1), M4*25 screw (6), M10*80 screw (2), M6*12 screw (4), M4*10 screw (1), communication cable (1), power cable (1450mm) (1), power cable (150mm) (1), and battery cable (2) for battery control unit to inverter.

How is the BC2-HV1 connected to the inverter?

The BC2-HV1 is connected to the inverter using the BAT+ and BAT- ports for power and the communication port for communication. The connection diagram shows COMM, BAT+, BAT-, and CAN terminals between the battery system and the inverter.

Compatibility records

SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)SAJ H2-10K-T3 (10 kW three-phase hybrid inverter)Item number DLK-SAJ-H210KT3Documented by SAJSAJ H2-12K-T3 (12 kW three-phase hybrid inverter)SAJ H2-12K-T3 (12 kW three-phase hybrid inverter)Item number DLK-SAJ-H212KT3Documented by SAJSAJ H2-15K-T3SAJ H2-15K-T3Item number DLK-SAJ-H215KT3Documented by SAJSAJ H2-20K-T3SAJ H2-20K-T3Item number DLK-SAJ-H220KT3Documented by SAJSAJ H2-25K-T3SAJ H2-25K-T3Item number DLK-SAJ-H225KT3Documented by SAJSAJ H2-30K-T3-DESAJ H2-30K-T3-DEItem number DLK-SAJ-H230KT3DEDocumented by SAJ

SAJ's Configuration Instructions V1.0 (Section 2) give the H2 series system as H2 + BC2 + BU2. SAJ's B2 datasheet names B2-5.0 to B2-25.0 as one to five BU2-5.0 modules with one BC2-HV1 control module, and SAJ's B2 manual (V1.2, PDF p5) says the B2 can only be used as a set with SAJ's H2 high voltage series storage inverter. The listing does not cover the one-module B2-5.0, whose operating voltage lies below the H2 T3's battery voltage range.

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