A home Level 2 charger is not one product but a set of packages. The same model is usually sold with a J1772 or a NACS cable, as a plug-in unit or a hardwired unit, and sometimes at two amperage ratings, and each combination has its own SKU. Decide the connector and the installation type first, then read the amperage, power and circuit figures the manufacturer states for that exact configuration.
Start with the connector your vehicle uses
Two vehicle connectors are in use on North American home chargers: SAE J1772 and NACS, standardized as SAE J3400. Emporia, Wallbox, ChargePoint and Grizzl-E each sell the same charger with either cable as a separate SKU. Emporia's store lists eight Classic variants by color, connector and configuration; Wallbox's part numbers carry a 1 for Type 1 (J1772) or a T for NACS; ChargePoint's order codes add -NACS for the NACS cable; Grizzl-E's model codes use J or N. A ChargePoint NACS conversion kit exists, but it is a separately sold part, and adapters are outside this catalogue.
Decide plug-in or hardwired, then read that configuration's amperage
The headline amperage of a model is often the hardwired figure. Emporia documents 48 A for the hardwired Classic and 40 A on its NEMA 14-50 plug. ChargePoint documents up to 50 A for a hardwired Home Flex but limits NEMA plug-in models to 32 A or 40 A. Wallbox sells the Pulsar Plus as a 40 A model with a NEMA 14-50 cord or a 48 A model that is hardwired only. Grizzl-E sells the Ultimate 48A as hardwire only and the Classic Connect as a 40 A plug-in that the manual says can be converted to hardwire at the same 40 A. This catalogue records the model maximum and the package maximum as separate facts so the plug limit stays visible.
Every figure here is a documented limit. The installer sets the current to suit the circuit, and the vehicle's onboard charger may draw less. None of these numbers is a measured charging speed.
Read power and circuit figures as the manufacturer states them
Power is recorded only where a source states it, with its voltage. Emporia states 11.5 kW at 240 V and 48 A. ENERGY STAR's listings give 11.52 kW at 240 V input for the Wallbox Pulsar Plus 48 A and Grizzl-E Ultimate 48A records. ChargePoint gives 12 kW only for its 50 A hardwired maximum, and Grizzl-E's store page and manual disagree on the Classic Connect's 40 A figure, so those package values stay unresolved rather than being calculated by us.
The manufacturers also state their circuit requirements: a dedicated two-pole breaker sized above the charging current, for example a 50 A circuit for 40 A or a 60 A circuit for 48 A in these documents. Emporia and ChargePoint ask for an industrial grade NEMA 14-50 outlet and Grizzl-E an EV Grade receptacle. Emporia and ChargePoint both describe nuisance tripping when a GFCI breaker is added in front of a charger with its own protection, and ChargePoint recommends hardwiring where local code requires a GFCI breaker for a plug-in. We repeat these statements as published and give no electrical advice of our own; a licensed electrician decides what your panel, wiring and local code allow.
Check who the manufacturer says should install it
Each manufacturer names a qualified installer. Emporia recommends a licensed electrician or other qualified professional. Wallbox says hardwired connections and new circuits or NEMA receptacles must only be done by a qualified electrician. Grizzl-E names a licensed contractor, licensed electrician or trained installation expert. ChargePoint recommends a licensed electrician who is also a ChargePoint-certified technician, and its installation guide excludes the station from warranty if installation or commissioning is not done by a certified technician using an approved method. Read that condition before you book an installer.
Measure the cable run
The packages here state 23 ft (ChargePoint Home Flex) or 25 ft (Emporia, Wallbox, Grizzl-E) of cable. A cable length is a specification, not a guarantee that it reaches your charge port around a parked car. ENERGY STAR records sometimes print a different cord figure, such as 24 ft for the Wallbox model number or 18 ft for the representative Home Flex variant, and we keep that difference in the fact note.
Read enclosure, safety listing and ENERGY STAR wording
Enclosure ratings are not interchangeable: Emporia, Wallbox and Grizzl-E state NEMA or UL Type 4, and ChargePoint states Type 3R per UL 50E. Safety wording also differs. ChargePoint states UL and cUL listed, Grizzl-E gives UL file E510712, Wallbox states UL certification to UL 2594 and UL 2231, and Emporia lists UL standards without naming a file number. ENERGY STAR's certified EVSE listing is a regulatory source for energy-use certification; it is not a safety listing. Emporia's own page does not mention ENERGY STAR, but the listing includes its model EMEVSE1.
Check the app, Wi-Fi and load management
All five packages rely on an app for scheduling and settings. Grizzl-E documents 2.4 GHz Wi-Fi only, ChargePoint 2.4 and 5 GHz, and Emporia and Wallbox do not state a band. Emporia says its app and Wi-Fi are required for advanced smart charging and a PIN is set in the app with the breaker size. Load management is usually extra: Wallbox's dynamic load management and solar charging may need a separately sold power meter, and Emporia says PowerSmart can be added to the Classic at extra cost.
Confirm the package and the warranty
Match the SKU or model code to the configuration you chose, because color, connector, plug and warranty options change it. Grizzl-E sells a 5 Year warranty as a separate add-on to its 3 Year default, and lists refurbished units beside new ones. Seller listings can disagree with the manufacturer; one retailer lists the Home Flex with a 1-year warranty and no certifications, while ChargePoint's datasheet states a 3-year parts warranty and UL listing. Where that happens, this catalogue records the manufacturer's wording and keeps the seller entry in the source note.
Common questions
Is a 48 A charger always faster than a 40 A charger?
Not necessarily. 48 A needs a hardwired installation on a 60 A circuit in these documents, the installer may set a lower current, and the vehicle's onboard charger may accept less. The figures are documented limits, not measured charging speeds.
Does a NEMA 14-50 plug-in charger give the same amperage as the hardwired version?
Often not. Emporia, ChargePoint and Wallbox document 40 A for their NEMA 14-50 configurations and a higher figure only when hardwired. Read the package maximum for the exact SKU.
Does ENERGY STAR mean the charger is safety certified?
No. ENERGY STAR certifies energy use, such as standby losses. Safety listing is a separate statement, such as UL or cUL, which this catalogue records in the manufacturer's own wording.
Can I install a home EV charger myself?
The manufacturers here name a licensed electrician or other qualified installer, and ChargePoint ties its warranty to installation by a ChargePoint certified technician. This guide gives no installation advice beyond those stated requirements.
Sources & further reading
- Emporia Classic EV Charger installation and usage guideChecked 2026-10-21
Guide reached from Emporia's installation-guides link, printed document 603-00009-J. Read for the box list, the licensed electrician recommendation, the plug-in and hardwired breaker statements, the 40 A and 48 A factory settings, Bluetooth then Wi-Fi setup in the Emporia Energy app, the specification table, the enclosure rating and model EMEVSE1. No Wi-Fi band is stated.
- ChargePoint Home Flex specifications and ordering informationChecked 2026-10-21
Datasheet dated April 2025, reached from the ChargePoint Home Flex (CPH50) datasheet resource page because the product and store pages did not render without a browser. Read for order code CPH50-NEMA14-50-L23-K, the 23 ft cable, the 12 kW (240V AC x 50A) maximum, the 32 A or 40 A limit on NEMA models, the breaker rule, 2.4/5 GHz Wi-Fi, Type 3R per UL 50E, the UL and cUL listing, ENERGY STAR and the 3 YR parts warranty wording.
- ChargePoint Home Flex installation guide (EN-US)Checked 2026-10-21
Installation guide with a May 2026 revision entry. Read for the licensed electrician and ChargePoint-certified technician recommendation, the warranty limitation for installation or commissioning by others, the J1772 box list, the circuit table allowing plug-in only at 40 A and 50 A circuits, the industrial grade NEMA 14-50 outlet and the non-GFCI breaker note.
- Pulsar Plus North America technical datasheetChecked 2026-10-21
Datasheet version 10/25 linked from the store page, covering both J1772 and NACS versions. Read for the 40 A and 48 A models, 9.6 kW and 11.5 kW at a 208/240 V rating, the hardwired-only 48 A connection, the part number structure, NEMA Type 4 per UL 50E, UL 2594 and UL 2231, ENERGY STAR, Wi-Fi and Bluetooth and the power meter footnote. No Wi-Fi band is stated.
- Grizzl-E Classic Connect 40A user manual and installation guideChecked 2026-10-21
Manual revision 1.2 dated January 22, 2026, linked from the store page and naming models GRS-077-W-14-25J40-A-GB, -GW, 25N40-A-GB and -GW. Read for 40 A at 9.60 kW on a 50 A circuit, the NEMA 14-50 plug, the EV grade receptacle and installer statements, the optional hardwire conversion, 2.4 GHz Wi-Fi, UL Certified E510712 and the package contents.
- ENERGY STAR certified EVSE AC-output record for Wallbox Pulsar Plus NAChecked 2026-10-21
Official ENERGY STAR open-data record (pd_id 2502091) for model PUP2-U-1-6-C-002, listing 48 A maximum nameplate output, 11.52 kW maximum output at 240 V input and a 24 ft output cord, qualified 2023-10-03. The cord figure differs from Wallbox's stated 25 ft.
See our methodology for source labels and limitations. Product evidence dates are shown beside the corresponding specifications.
Suggest a correction