Knowledge Base › Backup Switching Devices
Huawei SmartGuard-63A-T0
Official manufacturer GLOBAL verified Sept. 3, 2026
Unresolved safety-relevant conflict
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Identity
| category | backup_switching_devices |
| datasheet_variant_grouping | Huawei publishes one specification table jointly for SmartGuard-63A-T0 and SmartGuard-63A-AUT0; all values below are printed for both model designations together. |
| device_function | grid/backup AC changeover, islanding and load-management unit |
| generation | UNKNOWN |
| manufacturer | Huawei |
| marketing_name | SmartGuard-63A-T0/AUT0 |
| model | SmartGuard-63A-T0 |
| phase_support | Three-phase (L1/L2/L3/N+PE) |
| predecessor | UNKNOWN |
| product_family | HUAWEI SmartGuard (Smart Guard / Whole Home Backup) |
| region | GLOBAL |
| region_note | T0 is the general/global three-phase variant. Huawei publishes T0 and AUT0 under one joint specification table. |
| region_scope | Global (non-Australia) |
| series | SmartGuard-63A |
Electrical
| ac_frequency | UNKNOWN |
| ac_voltage_nominal | 380 / 400 / 415 V, 220 / 230 / 240 V, L1 / L2 / L3 / N + PE |
| backup_capacity_claim | up to 36 KW of backup capacity (three-phase whole home power backup) |
| bypass_operation_mode | Manual |
| dg_mode | Remote control |
| low_voltage_ride_through | Supported |
| max_current_from_to_grid_a | 63 |
| max_current_from_to_inverter_a | 60 |
| max_current_to_backup_load_a | 63 |
| max_current_to_non_backup_load_a | 63 |
| measurement_current_range | <= 63 A |
| measurement_energy_accuracy | +/- 1% |
| measurement_voltage_range | UNKNOWN |
| self_consumption_w | UNKNOWN |
| switchover_time | <= 20 ms (MAP0), <= 100 ms (M1 / MB0) |
Physical / mechanical
| cooling | Natural Convection |
| dimensions_w_h_d_mm | 490 mm x 600 mm x 170 mm |
| enclosure_colour | UNKNOWN |
| mounting | Wall-mounted (mounting plate supplied separately per weight note) |
| noise_emission | UNKNOWN |
| weight_kg | 17 (not including mounting plate) |
Installation
| bypass | Manual bypass switch; 'If the contactor is defective, manual bypass is ready to support' |
| circuit_modification | 'Highly integrated' design requiring 'minimal circuit modification' |
| generator_integration | DG mode: Remote control. Dedicated 'DG Do Port' (passive, 1 - 100 mA <= 24 V) for diesel-generator control |
| installation_position | Between grid connection point, inverter, backed-up and non-backed-up load groups |
| load_management | 'automatically switch off the less demanding loads and feed power to the preferential appliances' - built-in SmartAssistant provides power usage priority sorting and scheduled power usage |
| max_devices_managed | {'smart_energy_controllers': 'up to 3', 'smart_chargers': 'up to 2', 'heat_pump': 'up to 14', 'shelly_device': 'up to 20'} |
Environment
| cooling | Natural Convection |
| max_operating_altitude | 4000 m (derated over 2000 m) |
| operating_temperature_range | -25 °C - 50 °C |
| relative_humidity_range | 5% - 95% RH (non condensing) |
| storage_temperature_range | UNKNOWN |
Interfaces & connectors
| app | FusionSolar app (SmartAssistant functions) |
| bluetooth | UNKNOWN |
| cellular | UNKNOWN |
| dg_do_port | Passive Port, 1 - 100 mA <= 24 V |
| digital_input | x 2, <= 20 m; Active port |
| digital_output | x 2, <= 20 m |
| lan | 10 / 100 Mbps, <= 100 m |
| power_output | 9.5 - 13.2 V @ 100 mA, <= 3 m |
| rs485 | 9600 / 19,200 / 115,200 bps, x 2, <= 50 m |
| wan | 10 / 100 Mbps, <= 100 m |
| wlan | AP Mode, 802.11b/g/n (2.412 GHz - 2.484 GHz) |
Protection
| anti_islanding | Implicit in grid/backup changeover function; no explicit standard cited in the fetched documents |
| degree_of_protection | IP55 |
| fire_class | UNKNOWN |
| overcurrent_protection | UNKNOWN |
| residual_current_protection | UNKNOWN |
| surge_protection | UNKNOWN |
Certifications
| grid_codes | UNKNOWN |
| notes | No certification list appeared on the fetched pages or in the fetched datasheet. |
| standards | UNKNOWN |
Warranty & service
| extension_options | UNKNOWN |
| standard_warranty | UNKNOWN |
Documents
datasheet
SmartGuard Datasheet (SmartGuard-63A-T0 / SmartGuard-63A-AUT0)
rev 04-202311 (technical specifications block 01-202504)
quick_guide
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
SmartGuard-63A-T0/AUT0 Quick Guide (EDOC1100366786) — located, not retrieved
rev UNKNOWN
user_manual
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
SmartGuard-63A-T0/AUT0 User Manual (EDOC1100366781) — located, not retrieved
rev UNKNOWN
Recorded conflicts
environment.operating_temperature_range Review required
-25 °C - 50 °C — https://solar.huawei.com/admin/asset/v1/pro/view/fae1d0d46364459191f51ff78db88c3b.pdf
-25 °C - 50 °C — https://solar.huawei.com/en/products/huawei-smartguard-63a-t0-aut0/specs/
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| manufacturer_legal_entity_as_printed | Huawei Technologies Co., Ltd. |