NEC Article 625 Specification Matrix

EV Charger Side-by-Side Comparison Matrix

Filter Level 2 hardwired and plug-in EVSE by amperage, connector type, and approximate reference price. Estimate charging speed, session energy cost, and required circuit breaker amperage.

By Gil Sapir, Editor

Fast Answer⚡ Level 2 EV Charger Configuration Overview

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🏆 Reference Hardware Configuration

48A Hardwired (11.5 kW on 60A Circuit) or 40A Plug-In/Hardwired (9.6 kW on 50A Circuit)

⚡ Required Circuit & Conductors

60A Double-Pole (for 48A) or 50A Double-Pole (for 40A) • 6 AWG THHN Copper in Conduit (60A) or 8 AWG THHN / 6 AWG NM-B (50A)

✓ Code Standard: NEC Article 625.41 (125% Continuous Load Requirement)Read Calculation Methodology →

Real-Time NEC 625 Charging Calculator

EV Charger & Power Station Comparison Matrix

Filter by circuit rating, plug standard, and test charge times against your daily mileage or battery size.

Daily Commute Distance40 miles/day

10 mi80 mi (Avg)150 mi

Vehicle Efficiency3.6 mi/kWh

2.0 (Truck/SUV)3.6 (Model Y)4.5 (Sedan)

Electric Utility Rate$0.16 / kWh

$0.08 (Off-Peak)$0.16 (National Avg)$0.45 (CA Peak)

Session Energy Required: 11.1 kWh

Estimated Energy Cost: $1.78

NEC Continuous Load Rule: 80% Breaker Rating Applies

Amperage:

Connector:

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Pinned Head-to-Head Comparison (2/3 Units Selected)

Side-by-Side EVSE Performance & Charge Times

Tesla

Universal Wall Connector

~$595Approx. Ref.

Max Amperage:48A (11.5 kW)

Est. Charge Time:58 min

Charging Speed:+41 mi/hr

Connectors:J1772 / NACS

Check Amazon Store Direct

ChargePoint

Home Flex

~$549Approx. Ref.

Max Amperage:50A (12.0 kW)

Est. Charge Time:56 min

Charging Speed:+43 mi/hr

Connectors:J1772 / NACS

Check Amazon Store Direct

Showing 14 of 14 Reference UnitsClick "Pin" checkbox to compare side-by-side

Brand & Model	Max Output	Est. Charge Time	Connectors	Approx. Ref. Price	Retail Links
Tesla Universal Wall Connector	48A11.5 kW continuous	58 min+41 mi range/hr	J1772NACS	~$595	Amazon Direct
ChargePoint Home Flex	50A12.0 kW continuous	56 min+43 mi range/hr	J1772NACS	~$549	Amazon Direct
Emporia EV Charger	48A11.5 kW continuous	58 min+41 mi range/hr	J1772NACS	~$399	Amazon Direct
United Chargers Grizzl-E Classic	40A9.6 kW continuous	1h 9m+35 mi range/hr	J1772	~$349	Amazon Direct
Autel MaxiCharger AC	50A12.0 kW continuous	56 min+43 mi range/hr	J1772NACS	~$479	Amazon Direct
Wallbox Pulsar Plus	48A11.5 kW continuous	58 min+41 mi range/hr	J1772	~$599	Amazon Direct
Enel X JuiceBox 40	40A9.6 kW continuous	1h 9m+35 mi range/hr	J1772	~$519	Amazon Direct
Lectron V-BOX 48A	48A11.5 kW continuous	58 min+41 mi range/hr	J1772NACS	~$379	Amazon Direct
Autel MaxiCharger AC Elite	50A12.0 kW continuous	56 min+43 mi range/hr	J1772NACS	~$499	Amazon Direct
DEWALT Level 2 Portable NACS 32A	32A7.7 kW continuous	1h 27m+28 mi range/hr	NACS	~$349	Amazon Direct
Leviton Evr-Green 320	32A7.7 kW continuous	1h 27m+28 mi range/hr	J1772	~$549	Amazon Direct
Siemens VersiCharge AC	48A11.5 kW continuous	58 min+41 mi range/hr	J1772	~$629	Amazon Direct
Schumacher SC1455 Portable EV Charger	32A7.7 kW continuous	1h 27m+28 mi range/hr	J1772	~$199	Amazon Direct
Lectron Portable NACS 32A	32A7.7 kW continuous	1h 27m+28 mi range/hr	NACS	~$229	Amazon Direct

Canonical Head-to-Head Comparisons

All 91 Level 2 EV Charger Comparisons

Select any pair below for a side-by-side breakdown of amperage ratings, connector standards, approximate reference prices, and 32A / 40A / 48A circuit compatibility.

32A / 40A / 48A CircuitsCompare →

Frequently Asked Questions: EVSE & Branch Circuit Sizing

What is the difference between a hardwired EV charger and a NEMA 14-50 plug-in charger?

A hardwired EV charger connects directly to your branch circuit conductors, removing plug-and-receptacle connection points and supporting continuous charging at 48A (11.5 kW) on a 60A circuit. NEMA 14-50 plug-in chargers are limited by NEC rules to 40A continuous output (9.6 kW) on a 50A breaker.

How does the ChargeTier charge speed estimator work?

Select either Daily Commute Mode or Battery Recharge Mode in the calculator above. Adjust the mileage slider to match your daily driving distance (or target battery percentage) and utility electricity rate to estimate session time and cost across each charger's rated kW output.

Why does the NEC 80% continuous load rule limit EV charging amperage?

Under National Electrical Code (NEC) Section 625.41, electric vehicle supply equipment is classified as a continuous load because it operates at maximum output for three hours or more. Continuous loads must not exceed 80% of the branch-circuit breaker and conductor rating (equivalently, the circuit is sized at 125% of the continuous load).

Can I use a NACS (J3400) charger with a J1772 electric vehicle?

Yes. Dual-connector units such as the Tesla Universal Wall Connector include an integrated J1772 adapter, or you can pair a NACS charger with an automaker-approved NACS-to-J1772 adapter rated for the charger's continuous amperage.

EV Charger Side-by-Side Comparison Matrix

EV Charger & Power Station Comparison Matrix

Side-by-Side EVSE Performance & Charge Times

Universal Wall Connector

Home Flex

All 91 Level 2 EV Charger Comparisons

Autel MaxiCharger AC vs. Autel MaxiCharger AC Elite

Autel MaxiCharger AC vs. ChargePoint Home Flex

Autel MaxiCharger AC vs. DEWALT Level 2 Portable NACS 32A

Autel MaxiCharger AC vs. Emporia EV Charger

Autel MaxiCharger AC vs. United Chargers Grizzl-E Classic

Autel MaxiCharger AC vs. Enel X JuiceBox 40

Autel MaxiCharger AC vs. Lectron Portable NACS 32A

Autel MaxiCharger AC vs. Lectron V-BOX 48A

Autel MaxiCharger AC vs. Leviton Evr-Green 320

Autel MaxiCharger AC vs. Schumacher SC1455 Portable EV Charger

Autel MaxiCharger AC vs. Siemens VersiCharge AC

Autel MaxiCharger AC vs. Tesla Universal Wall Connector

Autel MaxiCharger AC vs. Wallbox Pulsar Plus

Autel MaxiCharger AC Elite vs. ChargePoint Home Flex

Autel MaxiCharger AC Elite vs. DEWALT Level 2 Portable NACS 32A

Autel MaxiCharger AC Elite vs. Emporia EV Charger

Autel MaxiCharger AC Elite vs. United Chargers Grizzl-E Classic

Autel MaxiCharger AC Elite vs. Enel X JuiceBox 40

Autel MaxiCharger AC Elite vs. Lectron Portable NACS 32A

Autel MaxiCharger AC Elite vs. Lectron V-BOX 48A

Autel MaxiCharger AC Elite vs. Leviton Evr-Green 320

Autel MaxiCharger AC Elite vs. Schumacher SC1455 Portable EV Charger

Autel MaxiCharger AC Elite vs. Siemens VersiCharge AC

Autel MaxiCharger AC Elite vs. Tesla Universal Wall Connector

Autel MaxiCharger AC Elite vs. Wallbox Pulsar Plus

ChargePoint Home Flex vs. DEWALT Level 2 Portable NACS 32A

ChargePoint Home Flex vs. Emporia EV Charger

ChargePoint Home Flex vs. United Chargers Grizzl-E Classic

ChargePoint Home Flex vs. Enel X JuiceBox 40

ChargePoint Home Flex vs. Lectron Portable NACS 32A

ChargePoint Home Flex vs. Lectron V-BOX 48A

ChargePoint Home Flex vs. Leviton Evr-Green 320

ChargePoint Home Flex vs. Schumacher SC1455 Portable EV Charger

ChargePoint Home Flex vs. Siemens VersiCharge AC

ChargePoint Home Flex vs. Tesla Universal Wall Connector

ChargePoint Home Flex vs. Wallbox Pulsar Plus

DEWALT Level 2 Portable NACS 32A vs. Emporia EV Charger

DEWALT Level 2 Portable NACS 32A vs. United Chargers Grizzl-E Classic

DEWALT Level 2 Portable NACS 32A vs. Enel X JuiceBox 40

DEWALT Level 2 Portable NACS 32A vs. Lectron Portable NACS 32A

DEWALT Level 2 Portable NACS 32A vs. Lectron V-BOX 48A

DEWALT Level 2 Portable NACS 32A vs. Leviton Evr-Green 320

DEWALT Level 2 Portable NACS 32A vs. Schumacher SC1455 Portable EV Charger

DEWALT Level 2 Portable NACS 32A vs. Siemens VersiCharge AC

DEWALT Level 2 Portable NACS 32A vs. Tesla Universal Wall Connector

DEWALT Level 2 Portable NACS 32A vs. Wallbox Pulsar Plus

Emporia EV Charger vs. United Chargers Grizzl-E Classic

Emporia EV Charger vs. Enel X JuiceBox 40

Emporia EV Charger vs. Lectron Portable NACS 32A

Emporia EV Charger vs. Lectron V-BOX 48A

Emporia EV Charger vs. Leviton Evr-Green 320

Emporia EV Charger vs. Schumacher SC1455 Portable EV Charger

Emporia EV Charger vs. Siemens VersiCharge AC

Emporia EV Charger vs. Tesla Universal Wall Connector

Emporia EV Charger vs. Wallbox Pulsar Plus

United Chargers Grizzl-E Classic vs. Enel X JuiceBox 40

United Chargers Grizzl-E Classic vs. Lectron Portable NACS 32A

United Chargers Grizzl-E Classic vs. Lectron V-BOX 48A

United Chargers Grizzl-E Classic vs. Leviton Evr-Green 320

United Chargers Grizzl-E Classic vs. Schumacher SC1455 Portable EV Charger

United Chargers Grizzl-E Classic vs. Siemens VersiCharge AC

United Chargers Grizzl-E Classic vs. Tesla Universal Wall Connector

United Chargers Grizzl-E Classic vs. Wallbox Pulsar Plus

Enel X JuiceBox 40 vs. Lectron Portable NACS 32A

Enel X JuiceBox 40 vs. Lectron V-BOX 48A

Enel X JuiceBox 40 vs. Leviton Evr-Green 320

Enel X JuiceBox 40 vs. Schumacher SC1455 Portable EV Charger

Enel X JuiceBox 40 vs. Siemens VersiCharge AC

Enel X JuiceBox 40 vs. Tesla Universal Wall Connector

Enel X JuiceBox 40 vs. Wallbox Pulsar Plus

Lectron Portable NACS 32A vs. Lectron V-BOX 48A

Lectron Portable NACS 32A vs. Leviton Evr-Green 320

Lectron Portable NACS 32A vs. Schumacher SC1455 Portable EV Charger

Lectron Portable NACS 32A vs. Siemens VersiCharge AC