ANMA System Building

Identity

category	inverters
manufacturer	Fortress Power
model	FP-Nano-60K-N
product_status	active
region	NA
variant	—

Electrical

ac_frequency_hz	60 (range 55 to 65)
ac_voltage_v	480 Vac 3P4W Fortress Power eSpire Nano Data Sheet (English)
altitude_max_m	2500
anti_corrosion_category	C4
backup_switch_time_ms	<10
communication_interfaces	CAN, RS485 (115200), Ethernet; optional Wi-Fi, cellular, LAN
cooling_method	HVAC
euro_efficiency_pct	98.2
grid_frequency_hz	60 Fortress Power eSpire Nano Data Sheet (English)
grid_frequency_range_hz	55 - 65 Fortress Power eSpire Nano Data Sheet (English)
grid_standards	IEEE 1547
max_ac_active_power_w	60000.0
max_ac_apparent_power_va	60000.0
max_ac_current_a	72.2
max_apparent_power_overload	1.6 x rated power for 2 s
max_charge_current_a	72.2 Fortress Power eSpire Nano Data Sheet (English)
max_dc_voltage_v	1100.0
max_discharge_current_a	72.2 Fortress Power eSpire Nano Data Sheet (English)
max_efficiency_pct	97.8
max_input_current_per_mppt_a	42
max_parallel_inverters	6
max_parallel_units	6 Fortress Power eSpire Nano
max_passthrough_current_a	144.4 Fortress Power eSpire Nano Data Sheet (English)
max_pv_input_power_w	100000
max_short_circuit_current_per_mppt_a	39.0
mppt_count	4
mppt_full_load_voltage_range_v	600 to 850
mppt_voltage_range_max_v	950.0
mppt_voltage_range_min_v	200.0
mppt_voltage_range_v	150 to 850
noise_level_db	<=75 at 1 m
nominal_ac_voltage_v	480 (3P4W)
nominal_frequency_hz	50.0
number_of_mppt	4
number_of_pv_inputs	8
official_product_url	https://www.fortresspower.com/products/espire-nano/ Fortress Power eSpire Nano — inventory record source_url
parallel_supported	True Fortress Power eSpire Nano
phase_count	3 Fortress Power eSpire Nano Data Sheet (English)
power_factor_range	> 0.99 disputed Fortress Power eSpire Nano Data Sheet (English)
rated_ac_power_w	60000.0
rated_current_a	72.2 Fortress Power eSpire Nano Data Sheet (English)
startup_voltage_v	180
thd_pct	<=3 (THDi)
thd_percent	3 Fortress Power eSpire Nano Data Sheet (English)
warranty_years	10 (70% retention at 8000 cycles)

Physical / mechanical

depth_mm	320 Fortress Power eSpire Nano
dimensions_mm	560 x 930 x 320
height_mm	930 Fortress Power eSpire Nano
width_mm	560 Fortress Power eSpire Nano

Environment

ip_rating	IP65
operating_temperature_max_c	50 Fortress Power eSpire Nano
operating_temperature_min_c	-20 Fortress Power eSpire Nano
operating_temperature_range_c	-20 to 50 (printed -4 °F to 122 °F; derating above 45 °C / 113 °F)

Interfaces & connectors

documented_ports

[{'port_role': 'GRID', 'port_label_from_manual': 'AC (GRID SIDE)', 'port_type': 'AC terminal', 'direction': 'bidirectional', 'electrical_domain': 'AC', 'quantity': 1, 'max_current_a': 144.4, 'document': 1, 'page': "column 'FP-Nano-60K-N' of the INVERTER / AC (GRID SIDE) table", 'quote': 'AC (GRID SIDE): Rated Input Voltage | 480 Vac 3P4W ; Max Current Passthrough | 144.4'}, {'port_role': 'BATTERY_DC', 'port_label_from_manual': 'DC BATTERY', 'port_type': 'DC terminal', 'direction': 'bidirectional', 'electrical_domain': 'DC', 'quantity': 1, 'max_current_a': 72.2, 'document': 1, 'page': "column 'FP-Nano-60K-N' of the INVERTER / AC (GRID SIDE) table", 'quote': 'Max Discharge/Charge Current | 72.2 A'}]

Protection

protection_degree_ip	IP55 (outdoor); IP20 indoor option
protections	BMS pre-alarm, smoke sensor, temperature sensor, aerosol suppression, gas sensor and exhaust fan

Certifications

certifications

UL 1973, UL 9540, UL 9540A, UL 1741, UL 3141, FCC Part 15, IEEE 1547, UN 38.3

Documents

datasheet Fortress Power eSpire Nano Data Sheet (English)

installation_manual Fortress Power eSpire Nano Installation Manual (Battery)

installation_manual Fortress Power eSpire Nano Installation Manual (Inverter)

product_page Fortress Power eSpire Nano

Recorded conflicts

electrical.power_factor_range Review required

> 0.99 — stored value

>0.99 (0.8 leading to 0.8 lagging) — incoming package

Detected during import deep-enrich-pass2-2026-09-batch10

Additional documented parameters

Recorded verbatim from the source; no schema field exists for these yet.

builder_completeness	partial
region_notes	North American 3-phase commercial product: 208/220/240 V 3P4W for the '-I' unit and 480 V 3P4W for the '-N' units, 60 Hz.

Fortress Power FP-Nano-60K-N