{"id":79778,"date":"2026-05-14T09:37:49","date_gmt":"2026-05-14T09:37:49","guid":{"rendered":"https:\/\/elektrons.lv\/Prece\/shelly-pro-3em-400a-3-phase-energy-meter-wifi-bluetooth\/"},"modified":"2026-05-15T07:48:54","modified_gmt":"2026-05-15T07:48:54","slug":"shelly-pro-3em-400a-3-phase-energy-meter-wifi-bluetooth","status":"publish","type":"product","link":"https:\/\/elektrons.lv\/et\/Prece\/shelly-pro-3em-400a-3-phase-energy-meter-wifi-bluetooth\/","title":{"rendered":"Shelly PRO 3EM 400A 3-Phase Energy Meter, WiFi\/Bluetooth"},"content":{"rendered":"
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3-Channel Shelly PRO 3EM 400A WiFi Electrical Energy Consumption Meter<\/h3>\n

Shelly Pro 3EM 400A is a professional, three-phase electrical energy consumption meter that can be installed on a DIN rail. The device reports accumulated energy with 1% accuracy and real-time voltage, current, and power for each phase. It stores data for the last 60 days with a one-minute resolution for each phase, enabling precise analysis. Furthermore, it offers advanced scripting capabilities and extended monitoring options.<\/p>\n

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 <\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Manufacturer<\/th>\nShelly<\/td>\n<\/tr>\n
Model<\/th>\nSPEM-003CEBEU400<\/td>\n<\/tr>\n
AC Power Supply Voltage<\/th>\n110 – 240 V, 50\/60 Hz<\/td>\n<\/tr>\n
Power Consumption<\/th>\n< 3 W<\/td>\n<\/tr>\n
Internal Temperature Sensor<\/th>\nYes<\/td>\n<\/tr>\n
Voltemeters (RMS for Each Phase)<\/th>\n100 – 260 V<\/td>\n<\/tr>\n
Voltemeter Accuracy<\/th>\n\u00b11%<\/td>\n<\/tr>\n
Amperemeters (RMS via CT for Each Phase and Neutral)<\/th>\n0 – 400 A<\/td>\n<\/tr>\n
Compatible Current Transformer (CT) Ratings<\/th>\nCT-400A<\/td>\n<\/tr>\n
Amperemeter Accuracy<\/th>\n\u00b11% (5 – 400 A), \u00b12% (0 – 5 A)<\/td>\n<\/tr>\n
Power and Energy Meters<\/th>\nActive and apparent power, active and apparent energy, power factor, basic active energy, and basic reactive energy<\/td>\n<\/tr>\n
Channel-to-Channel Calibration at Minimum Load<\/th>\n5000 W per channel<\/td>\n<\/tr>\n
No-Load Threshold<\/th>\n30 VA per channel<\/td>\n<\/tr>\n
Measurement Data Storage<\/th>\nAt least 60 days with 1-minute data resolution<\/td>\n<\/tr>\n
Data Export<\/th>\nCSV format for stored PQ values, JSON export via RPC<\/td>\n<\/tr>\n
Wi-Fi Protocol<\/th>\n802.11 b\/g\/n<\/td>\n<\/tr>\n
Wi-Fi Range<\/th>\nUp to 30 m indoors and 50 m outdoors<\/td>\n<\/tr>\n
Bluetooth Protocol<\/th>\n4.2<\/td>\n<\/tr>\n
Bluetooth Range<\/th>\nUp to 10 m indoors and 30 m outdoors<\/td>\n<\/tr>\n
CPU<\/th>\nESP32-D0WDQ6<\/td>\n<\/tr>\n
Flash Memory<\/th>\n16 MB<\/td>\n<\/tr>\n
Ambient Temperature<\/th>\n-20\u00b0C to +40\u00b0C<\/td>\n<\/tr>\n
Humidity<\/th>\n30% to 70% RH<\/td>\n<\/tr>\n
Maximum Altitude<\/th>\n2000 m<\/td>\n<\/tr>\n
Dimensions<\/th>\n94 x 19 x 69 \u00b10.5 mm<\/td>\n<\/tr>\n
Weight<\/th>\n62 \u00b11 g<\/td>\n<\/tr>\n
Mounting<\/th>\nDIN rail<\/td>\n<\/tr>\n
Housing Material<\/th>\nPlastic<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

3-Channel Shelly PRO 3EM 400A WiFi Electrical Energy Consumption Meter Shelly Pro 3EM 400A is a professional, three-phase electrical energy consumption meter that can be installed on a DIN rail. The device reports accumulated energy with 1% accuracy and real-time voltage, current, and power for each phase. It stores data for the last 60 days […]\n","protected":false},"featured_media":100362,"comment_status":"open","ping_status":"closed","template":"","meta":[],"location":[19557,19558],"product_brand":[],"product_cat":[12370],"product_tag":[],"class_list":{"0":"post-79778","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"location-innpro_stock_location","7":"location-local_stock_location","8":"product_cat-sensors","10":"first","11":"instock","12":"sale","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"aioseo_notices":[],"locations":[{"id":19557,"name":"Pieg\u0101d\u0101t\u0101ja noliktav\u0101 (5-7d.d.)","slug":"innpro_stock_location","quantity":"12"},{"id":19558,"name":"R\u012bgas veikal\u0101 (0-2d.d.)","slug":"local_stock_location","quantity":"0"}],"_links":{"self":[{"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/product\/79778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/comments?post=79778"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/media\/100362"}],"wp:attachment":[{"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/media?parent=79778"}],"wp:term":[{"taxonomy":"location","embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/location?post=79778"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/product_brand?post=79778"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/product_cat?post=79778"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/elektrons.lv\/et\/wp-json\/wp\/v2\/product_tag?post=79778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}