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SAJ HS3 S2 Series Quick Manual
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SAJ HS3 S2 Series Quick Manual

SAJ HS3 S2 Series Quick Manual

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This quick guide provides installation operations. For safety precautions and detailed product information, refer to the
Website www.saj-electric.com. You can scan the below QR code to access all the product documentation.
NOTICE
⚫
Before installation, operation, and maintenance, read the product documentation carefully.
⚫
ONLY qualified and trained electricians who have read and fully understood all safety regulations contained in this manual can install,
maintain, and repair the equipment. The operation personnel should understand the system, its working principles, and relevant national
and regional standards.
⚫
During operations, wear protective equipment and use dedicated tools.
1. Check the outer packing
1.
Check the outer packing package for any damage, such as holes and cracks.
2.
Check the equipment model.
If any serious damage is found or the model is not what you requested, do not unpack the product, and contact your dealer as soon as
possible.
2. Check the product packages
Contents in your shipment are order-dependent. Not all packages listed below may be in your shipment.
Place the connectors separately after unpacking to avoid confusion for connection of cables.
HS3 inverter
Inverter
PV connector x4
1
The waterproof cover is only available in some configurations.
2
The meter kit contains the following items:
Communication cable with
an RJ45 connector
3
The printed documents include a warranty card, a
V0.4
HS3-(3K-6K)-S2-(W, G)- (B, P)
24-pin communication
cable connector
Communication cable kit
Current transformer
Quick Guide
X
Insulated terminals
1
Grid connector kit (blue)
x22
Rubber plug x2
Smart meter
Configuration Instructions
, and a
1
Quick Guide
User Manual
1
Backup load
connector kit (black)
2
3
Meter kit
Printed documents
.
© Sanjing, 2024–2025. All rights reserved.
on the SAJ

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Summary of Contents for SAJ HS3 S2 Series

  • Page 1 This quick guide provides installation operations. For safety precautions and detailed product information, refer to the User Manual on the SAJ Website www.saj-electric.com. You can scan the below QR code to access all the product documentation. NOTICE ⚫ Before installation, operation, and maintenance, read the product documentation carefully.
  • Page 2 Package of type A BU3 battery pack Type A battery has two holes on the left and right sides. ⚫ Battery pack with a base (BU3-5.0-(TV1, TV2)-BASE or BU3-5.0-(TV1, TV2)-PRO-BASE) M6*50 screw x2 Battery pack Locking bracket x2 M6*80 expansion bolt x2 M5*14 screw x4 Gasket x2 Cardboard...
  • Page 3 Wall-mounting bracket (optional) Mounting bracket M12*100 expansion bolt x6 M5*14 screw x2 BC3 battery junction box (optional) Positive cable Battery junction box Communication cable Negative cable CU2 charger (optional) Charger Holster M4*32 screw x4 Expansion bolt x4 M5*14 screw x2 3.
  • Page 4 Depending on the battery pack type (A or B) and mounting manner, choose the following installation procedure: ⚫ Type A battery pack in the ground-mounting manner: Step 4 ⚫ Type B battery pack in the ground-mounting manner: Step 5 ⚫ Type B battery pack in the wall-mounting manner: Step 6 4.
  • Page 5 Align the locking brackets to the drill holes and install M6*50 screws to secure the locking brackets to the wall. Note: If the battery is installed outdoors, it is suggested to remove the cardboard which is not waterproof. M6*50 M6*50 5 N·...
  • Page 6 On each lower side of the battery: Install two M5*14 screws to secure two batteries. On each upper side of the battery: Align the locking bracket to the drill hole and install the gasket and M6*50 screw to secure the locking brackets to the wall.
  • Page 7 Install the holster on the wall by using three M4*32 screws. Note: The holster is used to secure the charger cable. You can connect the cable after all installation is completed. It is recommended that you purchase the cable from SAJ. M4*32 5 N·...
  • Page 8 ⚫ It is recommended that you connect the cable after all device installation is completed. ⚫ It is recommended that you purchase the cable from SAJ. ⚫ For a long cable, you can wrap the cable on the holster. 4.4. Install the inverter (HS3-xk-S2-(W, 4G)-(B, P) or HS3-xK-S2-(W, 4G)-(B, P)-(BE, IE)).
  • Page 9 Place the inverter onto the battery or charger (if available). Push it downwards. Install screws on both lower sides of the inverter to secure the inverter to the beneath device (battery or charger; here takes a charger as an example). M5*14 2.5 N·...
  • Page 10 5. Install type B battery pack: grounding manner 5.1. Install the base battery (BU3-5.0-(TV1, TV2)-BASE or BU3-5.0-(TV1, TV2)-PRO-BASE) Get the cardboard from the base battery package. Place the cardboard on to the wall. Drill six holes (8mm in diameter and 55mm in depth) on the marked positions on the cardboard.
  • Page 11 On the top of the battery pack, align the locking brackets to the drilled holes and install M6*50 screws to secure the locking brackets to the wall. Note: If the battery is installed outdoors, it is suggested to remove the cardboard which is not waterproof. M6*50 M6*50 5 N·...
  • Page 12 On the top of the battery pack, align the locking brackets to the drilled holes and install the gaskets and M6*50 screws to secure the battery pack to the wall. On the left and right bottom sides of the battery pack, install M5*14 screws to secure two batteries. M6*50 M6*50 5 N·...
  • Page 13 Install the holster on the wall by using three M4*32 screws. Note: The holster is used to the charger cable. You can connect the cable after all installation is completed. It is recommended that you purchase the cable from SAJ. M4*32 5 N·...
  • Page 14 Connect the EV charger cable. Notes: It is recommended that you purchase the cable from SAJ. ⚫ ⚫ It is recommended that you connect the cable after all device installation is completed. For a long cable, you can wrap the cable on the holster.
  • Page 15 Place the inverter onto the battery or charger (if available). Push it downwards. Install screws on both lower sides of the inverter to secure the inverter to the beneath device (battery or charger; here takes a charger as an example). M5*14 2.5 N·...
  • Page 16 6. Install type B battery pack: wall-mounting manner 6.1. Install the wall-mounting bracket Place the mounting bracket onto the wall. Mark six holes. Remove the bracket. Drill six holes according to the marked positions on the wall. Install the mounting bracket on to the wall. M12*100 45 N·...
  • Page 17 6.2. Install the base battery (BU3-5.0-(TV1, TV2)-BASE or BU3-5.0-(TV1, TV2)-PRO-BASE) Get the cardboard from the base battery package. Place the cardboard on to the wall. Place the cardboard onto the wall by aligning the vertical lines with the bracket edges. Drill six holes (8mm in diameter and 55mm in depth) on the marked positions on the cardboard.
  • Page 18 Use two M5*14 screws to install two locking brackets to the mounting ears on the top of the battery pack. Place the base battery onto the floor. Make sure that: The battery feet are aligned with the vertical black line on the cardboard. ⚫...
  • Page 19 6.3. Install other required devices For details, refer to same procedure (steps 5.2 to 5.4) in the ground mounting manner. ⚫ (Optional) Battery without a base (BU3-5.0-(TV1, TV2) or BU3-5.0-(TV1, TV2)-PRO): Step 5.2 (Optional) Charger (CU2-7.4K-S-I): Step 5.3 ⚫ Inverter (HS3-xk-S2-W-B, HS3-xK-S2-W-P, HS3-xk-S2-4G-B, or HS3-xK-S2-4G-P): Step 5.4 ⚫...
  • Page 20 Depending on the battery type, perform as follows: Type A battery pack: Install screws on both lower sides of the junction box to secure the junction box to the beneath battery. ⚫ M5*14 2.5 N· m ⚫ Type B battery pack: Install screws on both lower sides of the junction box to secure the junction box to the beneath battery. M5*14 2.5 N·...
  • Page 21 Completion View Example of 8 batteries: 8. Assemble the AC-side connection Open the AC-side Cover. Connect the grounding cable, by taking AC-side grounding as an example. The cable needs to be prepared by the user. It is recommended that a 6-mm conductor cross-sectional area of cable be used.
  • Page 22 Remove the M4*10 screw from the grounding port. Connect and secure the grounding cable, as shown below: (4G model only) Install the SIM card: Loosen the cover of the SIM card slot. Then, insert the SIM card to the slot. (W model only) Install the LAN cable, if you choose to use the Ethernet connection manner.
  • Page 23 Install the EMS cable. Connect the cable from the EMS port on the inverter to the LAN port on SAJ eManager (EMS). Remove the RJ45 cable fastener from the EMS port. Use a standard RJ45 cable. Insert the cable through the cable fastener as shown below. Assemble the cable fastener.
  • Page 24 Secure the cable to the connector. Then, assemble the connector. Remove the dustproof covers from the GRID and BACK-UP ports. Use a flathead screwdriver to press down the tab in the cover. Rotate the cover anti-clockwise and pull it upwards. Connect the cables to the GRID and BACKUP ports on the inverter.
  • Page 25 Assemble the communication connection. Disassemble the communication cable connector. ① Press the tabs on two sides of the connector by one hand and press the front ends of the terminal by another hand. Pull the connection terminal block outwards. ② Rotate the nut anti-clockwise and remove it from the connector body.
  • Page 26 ② Insert all communication cables through the nut, seals, and body of the connector. ③ Locate the ports and terminals on the connection terminal block according to their silkscreens. Name Number Pin definition Description PORT (RJ45 port) 1: CAN-H For parallelling connection (with a 120 Ω...
  • Page 27 Connect and secure the cables to the connection terminal block. Then, assemble the communication cable connector. ① Connect cables to corresponding terminals and RJ45 ports based on your needs. ② Use a screwdriver to secure the cables connected to the terminals. Note: If any terminal that has been equipped with a 120 Ω...
  • Page 28 Callout Description RJ45 pin definition Communication cable with an RJ45 connector ⚫ Pin 1: A1 ⚫ Pin 2: B1 ⚫ Pins 3 to 8: NC Communication cable kit Pin 1: For MET-A ⚫ ⚫ Pin 2: For MET-B ⚫ Pins 3 to 8: NC 10.
  • Page 29 Recommended cable specification: Conductor cross-sectional area of cables (mm² ) Conductor material Scope Recommended value Outdoor copper wire cable, complying with 600 V DC 5.0–6.0 Before you start, make sure that: ⚫ The PV array is properly insulated to ground before it is connected to the inverter. The inverter cannot be used with functionally earthed PV arrays.
  • Page 30 Tighten the lock screws on the positive and negative cable connectors. Insert the positive and negative cable connectors into the positive and negative PV ports on the inverter until you hear a “click” sound to ensure firm connection. (Optional) Connect the battery cables between multiple stacks. Prepare and connect the grounding cable to the battery junction box.
  • Page 31 The positive connector is used as an example: ⚫ The provided cables have been assembled with connectors. In some special cases, if you need to use your own cables, contact SAJ for technical support. Example of 8 batteries connecting to one inverter: BAT+...
  • Page 32 Check the LED indicator status on the inverter panel to ensure that the inverter is running properly. Note: The LED indicator status label is on the left side of the inverter. Configure the system on the SAJ App named Elekeeper. For details, refer to the section “System Commissioning” in the Configuration Instructions If any error occurs, check the error code displayed on the App.