Features
Our Refrigerators are Made in Japan
And Stocked with Innovative Features
Harnessing the best of Hitachi technology, we derive immense pleasure in delivering eco-friendly refrigerators through proprietary technologies.
Its unique Platinum Catalyst found in both the Vacuum and Aero-care Vege Compartments, helps sustain freshness of stored food. Other complementary features like Vacuum Insulation Panels and advanced Frost Recycling Cooling* work in synergy for greater energy efficiency.
Hitachi Made in Japan refrigerators exude external aesthetic beauty and are also made for the intelligent and innovative homes of the future.
With Hitachi, you’ve got it made.
* Moisture Cooling for R-KWC/KW570K, R-HW610J and R-HW530J.
Vacuum-sealed for Freshness
Platinum Catalyst with Ruthenium Vacuum Compartment
The secret to longer-lasting freshness is reduced oxygen levels. Hitachi’s original preservation extracts air to maintain approx. 0.8 atm of vacuum preservation. With unique Platinum Catalyst, chilled meat, fish and dairy products are kept fresh and nutritious, and ready to cook.
Vacuum Compartment
Nutrition Retention
Stay healthy. A vacuumed environment prevents oxidisation and retains nutrients inside the food.
DHA Value in Mackerel Stored after 7 Days*
Initial Value
0.45g/100g
100%
Refrigerator
Compartment
57%
Vacuum
Compartment
71%
* Tested by Hitachi. Tested Model : R-WX74K (equivalent model to R-ZXC/ZX740K). The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Vacuum Compartment
Nutrition Retention
Stay healthy. A vacuumed environment prevents oxidisation and retains nutrients inside the food.
Vitamin C Value in Mango Stored after 7 Days*
Initial Value
49.9mg/100g
100%
Refrigerator
Compartment
71%
Vacuum
Compartment
84%
Vitamin C Value in Kiwi Stored after 7 Days*
Initial Value
97.3mg/100g
100%
Refrigerator
Compartment
90%
Vacuum
Compartment
95%
* Tested by Hitachi. Tested Model : R-WX74K (equivalent model to R-ZXC/ZX740K). The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Vacuum Compartment
Freshness Preservation
Excellent freshness preservation with Hitachi technology for keeping sashimi fresh.
K-Value in Tuna Stored after 3 Days*
Vacuum Compartment : 17.9% Initial Value : 12.0%
K-Value in Chicken Breast after 7 Days*
Vacuum Compartment : 45.3% Initial Value : 38.1%
* Tested by Hitachi. Tested Model : R-WX74K (equivalent model to R-ZXC/ZX740K). K-value is an indication of freshness. The lower the value, the fresher the item. K-value of 20% or higher is not suitable for eating raw and K-value of 60% or higher is not suitable for consumption. The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Vacuum Compartment
Flavour Preservation
Excellent preservation of original flavour and texture, by minimising the drips while keeping them fresh without getting frozen and hydrated without the need for troublesome wrapping.
Tuna Stored after 3 Days*
Drip Loss 2.82g / 100g
Freezer Compartment
(Natural Thaw)
Drip Loss 0.47g / 100g
Vacuum Compartment
Cheese Stored after 3 Days*
Refrigerator Compartment
Vacuum Compartment
* Tested by Hitachi. Tested Model : R-WX74K (equivalent model to R-ZXC/ZX740K). The effect may differ depending on types or freshness of food stored, and does not extend to best-before and expiration dates.
Vacuum Compartment
Quick Seasoning
Quick seasoning is made possible because the Vacuum Compartment removes air from stored food, enabling seasoning to be absorbed at a faster rate.* So, with less time required for seasoning and cooking, there’s more time for eating!
Marinated Seasoning
Rehydration
* Tested by Hitachi. Tested Model : R-G6700D (equivalent atmospheric pressure to R-ZXC/ZX740K). Penetration rates may differ depending on food seasoning used.
Refreshing Technology Maintains 0.8 atm Vacuum*
Hitachi innovation at its finest and most consistent : the sealed pressure-resistant vacuum realises and maintains the vacuumed environment. A vacuum pump extracts air and reduces oxygen to achieve approx. 0.8 atm (atmospheric pressure) throughout usage.
* Vacuum means the space where the pressure is lower than the atmospheric pressure. The pressure in the Vacuum Compartment is about 0.8 atm, which is lower than the atmospheric pressure, hence, Hitachi considers this a vacuum.
Vacuum Compartment
A Tale of 2 Temperature Zones
Now, you can truly chill. Store your food without freezing by selecting a suitable temperature for the stored items, and help prevent deterioration of flavours and texture.
Vacuum Sub Zero Mode
Approx. -1°C
Vacuum Chilled Mode
Approx. +1°C
Approx. 2°C Cooling Keeps Food Fresh
Sensor Cooling
The lower 2 shelves are kept at approx. 2°C. This is lower than the regular refrigerator temperature, so your items stored here retain their freshness. The sensor detects temperature changes and adjusts the cooling power to maintain the 2°C temperature in the right lower compartment.*
* Tested by Hitachi. The effect may differ depending on conditions and amount of food stored.
The Power of Platinum for Fruits & Vegetables
Aero-care Vege Compartment with Platinum Catalyst
The uniquely-designed compartment sustains freshness and nutrients of the vegetables and fruits with Platinum Catalyst. In addition, the improved airtight seal of compartment increases and controls humidity.
Aero-care Vege Compartment
Freshness and Nutrition of Vegetables & Fruits
Under the power of a Platinum Catalyst, food achieves amazing results. With increased carbon dioxide produced, vegetable respiration is controlled and consumption of nutrients from the environment limited to prevent loss of food freshness.
Moisture Retention in Spinach Stored after 7 Days*
Approx. 81.1%
Moist Vege Compartment
without Platinum Catalyst
Approx. 97.5%
Aero-care Vege Compartment
with Platinum Catalyst
* Tested by Hitachi. Test model for Aero-care Vege Compartment : R-WX74K (equivalent model to R-ZXC/ZX740K), for Moist Vege compartment : R-G6700D. The effect may differ depending on types and amount of food stored.
Aero-care Vege Compartment
Freshness and Nutrition of Vegetables & Fruits
Under the power of a Platinum Catalyst, food achieves amazing results. With increased carbon dioxide produced, fruit respiration is controlled and consumption of nutrients from the environment limited to prevent loss of food freshness.
Retain Vitamin C in Orange Stored after 7 Days*
Initial Value
78.2mg/100g
100%
Moist Vege
Compartment
84%
Aero-care Vege
Compartment
92%
* Tested by Hitachi. Test model for Aero-care Vege Compartment : R-WX74K (equivalent model to R-ZXC/ZX740K) , for Moist Vege compartment : R-G6700D. The effect may differ depending on types and amount of food stored.
Retains All the Natural Goodness of Your Food
Delicious Freezing Technology
Delicious Freezing technology seals in the original textures, flavours and nutritional value of fresh and cooked products. This is achieved by freezing food very quickly past the maximum ice crystal formation zone on a big aluminium tray.
Delicious Freezing
Seals in Flavours of Meat and Fish
When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This minimises dripping by reducing ice crystal size, thus sealing in flavours of meat and fish.
Lamb Stored after 10 Days*
Drip Loss 0.56g / 100g
Regular Freezing
(Natural Thaw for 4 Hours)
Drip Loss 0.26g / 100g
Delicious Freezing
(Natural Thaw for 4 Hours)
* Tested by Hitachi. Tested model for Delicious Freezing : R-XG6700G (equivalent model to R-WX670K). The effect differs depending on the models and conditions.
Delicious Freezing
Prevents Nutritional Loss in Vegetables
When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This achieves greater Vitamin C preservation.
Vitamin C Content of Broccoli*
(mg/100g)
Raw Broccoli
Initial Value
149.8mg
Regular Freezing
94.7mg
Delicious Freezing
115.0mg
* Tested by Hitachi. Tested model for Delicious Freezing : R-XG6700G (equivalent model to R-WX670K). The effect differs depending on the models and conditions.
Delicious Freezing
Retains Original Rice Flavours
When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This prevents deterioration of food quality.
Gelatinization Degree of Rice*
Gelatinization Degree (%)
Freshly-cooked Rice
100%
Regular Freezing
93.3%
Delicious Freezing
94.7%
* Tested by Hitachi. Tested model for Delicious Freezing : R-XG6700G (equivalent model to R-WX670K). The effect differs depending on the models and conditions.
Breakthrough Energy
Saving Technology
VIP – Vacuum Insulation Panel
VIP is a thin vacuum-insulated panel with extremely high heat insulation performance. It achieves super energy saving compared to conventional urethane, by preventing external heat entry or internal cold air escape.
Reduces Energy Consumption
Frost Recycle Cooling Technology
In Frost Recycling Cooling, chilled air is generated by frost formed in the evaporator. This is recycled by being sent to every compartment to cool down – even when the compressor is not running. Through such a system, energy consumption is reduced.
Designed to Perfection
One-Touch Auto Drawers
Auto drawer technology provides a seamless opening experience. Even if the compartments are fully packed, lower freezer and vegetable compartment drawers can be opened automatically just by touching a button.
Flexible Storage Design
Shelves and Pockets with Adjustable Height
The heights of top 2 tempered glass shelves and the door pockets can be adjusted to match the size of the food items and your needs.
Tech Spec
Gross Capacity (L) Total : 657
Refrigerator Compartment : 291
Vacuum Compartment : 40
Vegetable Compartment : 115
Freezer Compartment (Upper + Lower + Ice) : 211
Storage Capacity (L) Total : 474
Refrigerator Compartment : 284
Vacuum Compartment : 14
Vegetable Compartment : 79
Freezer Compartment (Upper + Lower + Ice) : 97
Cooling System Frost Recycle Cooling
Multi valve Control
Inverter Compressor
Eco Intelligent Control
Refrigerant : R600a
Vacuum Insulation Material
Refrigerator Compartment Vacuum Compartment : Platinum Catalyst with Ruthenium
Sensor Cooling (3rd & 4th Shelves)
LED Lighting
Tempered Glass Shelf (Upper 2 shelves)
Height Adjustable Pockets
Height Adjustable Shelves
Automatic Independent Ice Storage
Ice Making Quick Ice Making
Compartment Automatic Cleaning Function
Water Filter
Stop Ice Making
Detachable Function : Ice Tray
Signal for Water Supply
Lower Freezer Aluminum Tray（Top）
Compartment Delicious Freezing（Top）
Auto Drawer
3-layer Freezer Case
Vegetable Aero-care Vegetable Compartment : Platinum Catalyst with Ruthenium
Compartment Aero-care Vegetable Compartment
(with Moisture Cover)
Auto Drawer
2-layer Vegetable Case : Upper & Lower
Other Features Triple Deordorization Filter
Lifestyle Memory Control
Control Panel (Touch Screen Controller)
Door-Opened Alarm : Refrigerator Compartment / Ice Making Compartment / Lower Freezer Compartment / Vegetable Compartment
Weight (kg) 126
Dimensions (WxHxD)(mm) 750 x 1,833 x 738
Body Colour Crystal Mirror (X)
