c/kWh
Total capacity
377 L
377 L fridge
Energy rating
4.5
Star rating index 4.51
Annual electricity use
160 kWh
Label figure (comparative energy consumption)
Estimated running cost
$53 / year
$4.40 / month ยท $528 over 10 years

4% more electricity than the median of 52 comparable 300โ€“399 L fridge without a separate freezer registrations (154 kWh a year). It uses less than 46% of them. At 33c/kWh that is about $2 a year more than the median, $21 over 10 years.

Uses 56% less than the maximum allowed for its size and type under the minimum energy performance standard (362 kWh a year MEPS level).

Cost = label kWh ร— 33c/kWh in NZD; change the price above to your tariff.

How efficient is it for its size?

kWh per year. Bar: the middle 80% of 52 comparable 300โ€“399 L fridge without a separate freezer registrations. Dot: this model (above the median). Hover or tab to a mark for its value.

Cohort: every currently registered 300โ€“399 L fridge without a separate freezer sold in New Zealand, counted once per registration. Star ratings already account for size through the GEMS adjusted-volume formula; this comparison is in raw kWh against models a buyer would actually consider instead.

Sub-Zero ICBDEC2450R Series running cost

Per month
$4.40
Per year
$53
5 years
$264
10 years
$528

160 kWh ร— 33c/kWh. No inflation or tariff change assumed. Fridges run continuously, so the label figure is a whole-year estimate under standard test conditions.

Capacity and compartments

Total gross volume
377 L
Fresh food (fridge) volume
377 L
Frozen storage volume
โ€“
GEMS adjusted volume
377 L
fresh food compartment
377 L gross

Gross volumes exclude shelving. Fresh food = fresh food, chill and cellar compartments; frozen = freezer, two-star and ice-making (zero-star) compartments. Adjusted volume weights frozen space more heavily and is what the government uses to set the star rating for the size.

Similar fridge without a separate freezers that use less electricity

Same type, total capacity within 12% of 377 L, at least 3% lower annual kWh.

ModelStarsEst. cost / yrCompare
Liebherr SRBbsh 5260384 L112 kWh/yr6$37
Liebherr SRBs*h 5260384 L112 kWh/yr6$37
Miele KS 4783 ED edt/cs399 L115 kWh/yr6$38
Miele KS 4783 ED bst399 L115 kWh/yr6$38
Haier HCF420W418 L125 kWh/yr6$41

Fridges similar to the Sub-Zero ICBDEC2450R Series

ModelCapacityStarskWh / yr
Fisher & Paykel RS6121SRHE1
5% smaller, same door count, similar external size, similar star rating
358 L5146
Fisher & Paykel RS6121S Eseries
5% smaller, same door count, similar external size, similar star rating
358 L5146
Miele K 2601 Vi
5% smaller, same door count, similar external size, similar star rating
357 L4.5157
Fhiaba XS600FR3A
2% smaller, same door count, similar external size
368 L2.5235
Fhiaba *S600FR*A
2% smaller, same door count, similar external size
368 L2.5235
Vogue 355380
same capacity, same door count, similar star rating
380 L5144
LG *P-*386
2% larger, same door count, similar star rating
386 L4.5162
LG GP-R386MBL
2% larger, same door count, similar star rating
386 L4.5162

Same consumer type, total capacity within 12% of 377 L; ordered by closeness of capacity, then lowest annual kWh.

Compare ICBDEC2450R Series with another fridge

Sub-Zero ICBDEC2450R Series specifications

Type
Fridge without a separate freezer
Configuration
Upright
Doors
1
Defrost
โ€“
Ice maker
โ€“
Width
610 mm
Height
2,134 mm
Depth
610 mm
Annual energy (label)
160 kWh
Star rating index
4.508
MEPS level (maximum allowed)
362 kWh
kWh per adjusted litre
0.424
Country of manufacture
United States of America

Other model numbers on registration ARF3021

Registered together with the same test results, usually colour or finish variants.

New Zealand E3 registration details

Registration number
ARF3021
GEMS registration id
152014
Status
approved, available (self-reported)
Registration expires
17 January 2028
Registered for sale in
Australia, Fiji, New Zealand
Family
ICBDEC2450R Series
Designation
Refrigerator
Product class
Class 1
GEMS group
Group 1: refrigerator without a low-temperature compartment, automatic defrost
Regulatory standard
Greenhouse and Energy Minimum Standards (Household Refrigerating Appliances) Determination 2019
Test standard
IEC 62552-3:2015
Consumer type rule
Designated a refrigerator (GEMS groups 1 to 3) with a total volume of 200 L or more

Source: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on data.gov.au, CC BY 3.0 AU). Dataset published 25 September 2026; last checked 26 September 2026. Manufacturer: subzero.com. How the derived figures are calculated.