Western CO. WRM20+

Official manufacturer GLOBAL перевірено 25 вересня 2026 р.

Identity

category	external_mppt_controllers
manufacturer	Western CO.
model	WRM20+
region	GLOBAL
variant	—

Electrical

battery_voltage_max_v	[17.0, 34.0] Brochure WRM20 (ITA-ENG-FRA)
battery_voltage_min_v	[10.0, 20.0] Brochure WRM20 (ITA-ENG-FRA)
battery_voltage_support_v	24 nominal; 20.0 to 34.0 operating
battery_voltage_supported	12 / 24 V Brochure WRM20 (ITA-ENG-FRA)
charge_current_a	20 Brochure WRM20 (ITA-ENG-FRA)
charge_stages	Absorption phase length adjustable 1 h / 4 h (default) / 8 h, then float
charge_voltage_v	SEAL program 28.8 at 25 degC; FLOOD program 29.6 at 25 degC; Li program 28.0 to 29.4
float_voltage_v	VEoC - 1.2
load_output	Voltage VLOAD = Vbatt; current ILOAD 20 A
load_output_current_a	20 Brochure WRM20 (ITA-ENG-FRA)
low_voltage_disconnect_v	21.6 / 22.8 (default) / 24.4 adjustable; reconnect 24.8 / 27.6 (default) / 27.6 at 25 degC
manufacturer_part_number	015566 Western CO. WRM20+ product page
max_power_loss_w	29
max_pv_current_a	19 Brochure WRM20 (ITA-ENG-FRA)
max_pv_input_power_w	620
max_pv_power_w	[310, 620] Brochure WRM20 (ITA-ENG-FRA)
max_pv_voltage_v	100 Brochure WRM20 (ITA-ENG-FRA)
night_day_detection_v	Night detection 4.0 to 18.4 V; day detection adjustable 4.8 / 9.6 (default) / 19.2 V
rated_charge_current_a	20
self_consumption_ma	[12.7, 17.7] суперечливе Brochure WRM20 (ITA-ENG-FRA)

Physical / mechanical

dimensions_mm	153 x 130 x 53 Brochure WRM20 (ITA-ENG-FRA)
weight_kg	0.515 Brochure WRM20 (ITA-ENG-FRA)

Environment

ip_rating	IP20 Brochure WRM20 (ITA-ENG-FRA)
operating_temperature_max_c	50 Brochure WRM20 (ITA-ENG-FRA)
operating_temperature_min_c	-40 Brochure WRM20 (ITA-ENG-FRA)
operating_temperature_range_c	-40 to 50
temperature_compensation	-48 mV/degC

Interfaces & connectors

communications	['RS-485 (WBus protocol)'] WRM20 User Manual
documented_ports	[{'port_role': 'RS485', 'port_label_from_manual': 'RS-485 port', 'port_type': 'RS485', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Model coverage statement, WRM20 user manual', 'quote': 'The manual covers two models: WRM20 and WRM20+ (with RS-485 port and WBus protocol)'}] суперечливе
protocols	WBUS Brochure WRM20 (ITA-ENG-FRA)
rs485	True WRM20 User Manual

Protection

protection_degree_ip

IP20

Документи

application_note Western CO. MPPT Charge Controllers - Maximum Power Technical Note

certificate EC Declaration of Conformity - Charge Controllers

datasheet Brochure WRM20 (ENG-ESP-DEU)

datasheet Brochure WRM20 (ITA-ENG-FRA)

product_page Western CO. WRM20+ product page

user_manual WRM20 User Manual

Зафіксовані конфлікти

electrical.self_consumption_ma Review required

[12.7, 17.7] — stored value

17.7 (at Vbat 28.0 V) — incoming package

Detected during import deep-enrich-pass2-2026-09-batch16

interfaces.documented_ports Review required

[{'port_role': 'RS485', 'port_label_from_manual': 'RS-485 port', 'port_type': 'RS485', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Model coverage statement, WRM20 user manual', 'quote': 'The manual covers two models: WRM20 and WRM20+ (with RS-485 port and WBus protocol)'}] — stored value

[{'port_role': 'RS485', 'port_label_from_manual': 'RS485 communication port', 'port_type': 'RS485', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'document': 0, 'page': 'Communication note', 'quote': 'WBUS protocol with RS485 communication port (available only in WRM20+ version)'}, {'port_role': 'DC_OUT', 'port_label_from_manual': 'Load output current ILOAD', 'port_type': 'terminal', 'direction': 'output', 'electrical_domain': 'dc', 'document': 0, 'page': 'Technical data table', 'quote': 'Load output current ILOAD 20A'}] — incoming package

Detected during import deep-enrich-2026-09-batch17

Додаткові задокументовані параметри

Записано дослівно з джерела; поля схеми для них поки немає.

builder_completeness	partial
region_notes	Italian manufacturer; documentation is multilingual and not market-specific.
withheld:bluetooth	false
withheld:can	false
withheld:ethernet	false

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