Grizzl-E 48A Ultimate EV Charger Review
The Grizzl-E 48A Ultimate Level 2 EV Charger offers fast, efficient charging with a UL-tested, certified metal case. Designed for indoor and outdoor use, this hardwired station features a J1772 connector and a sleek black finish. With a maximum output of 48 amps, it provides reliable charging for all-electric vehicles, supporting 16A to 48A charging needs.
We found the Grizzl-E 48A Ultimate EV Charger to be a reliable and efficient option for EV owners. With a maximum output of 48 amps, it supports various circuit capacities, including 60A, 50A, 40A, 30A, and 20A breakers. Its adjustable amperage settings make it versatile for different electrical setups. The 25-foot cable and support for J1772 and NACS connectors ensure compatibility with most EVs and plug-in hybrids in North America. We appreciated its Canadian-made, heavy-duty UL Type 4 metal enclosure, making it suitable for indoor and outdoor use. Its weather-resistant build meets harsh conditions, and the included hardwire kit simplifies the installation process.
The charger’s robust design gave us confidence in its long-term durability. The Wi-Fi connectivity, powered by the Grizzl-E Connect app, allows us to monitor real-time charging, schedule sessions, and view energy consumption data. While the app is straightforward and functional, we noticed it could benefit from additional features like separate weekday and weekend electricity rate settings. That said, regular updates suggest improvements are on the way. Safety is a key feature we value. The charger includes protection against overcurrent, overvoltage, undervoltage, ground faults, and overheating. Its self-recovery and built-in GFCI add further reliability.
The UL certification and three-year warranty provide additional peace of mind. In our experience, installation was quick and easy, and the unit felt solid and well-built. The long cable and durable charging plug added convenience, making it a practical solution for daily use. While it lacks some premium features, the Grizzl-E 48A Ultimate delivers excellent performance and reliability, making it a great choice for EV owners who prioritize durability and functionality.
Grizzl-E 48A Ultimate EV Charger Hardwire Installation
The Grizzl-E 48A hardwired EV charger’s installation depends on your electrical panel’s capacity and your specific charging needs. To ensure optimal performance, consult the table below for detailed installation requirements, including maximum current output, wire gauge specifications, circuit breaker ratings, and the corresponding maximum charging station output (kW).
| Current Output | Wire Gauge (L1, L2) | Wire Gauge (G) | Circuit Breaker | Output (kW) |
|---|---|---|---|---|
| 48A | 4-6 AWG | 4-8 AWG | 60A | 11.56 |
| 40A | 6-8 AWG | 6-10 AWG | 50A | 9.6 |
| 32A | 8 AWG | 8-10 AWG | 40A | 7.68 |
| 24A | 8 AWG | 8-10 AWG | 30A | 5.76 |
| 16A | 8 AWG | 8-10 AWG | 20A | 3.84 |
A qualified electrician can assess your electrical panel, determine the appropriate circuit breaker and wiring gauge, and ensure a safe and efficient installation.
Grizzl-E Ultimate 48A Hardwire Wiring Diagram (60A Circuit Breaker)
The diagram below illustrates the wiring of a hardwired Grizzl-E Ultimate 48A charger. To achieve a maximum output of 48 amps, connect the charger using 4-6 AWG wires for L1 and L2, and 4-8 AWG for the ground (G). Use a 60A circuit breaker for safe operation. This setup provides a maximum charging output of 11.56 kW. The diagram also includes the DIP switch settings for 48 amps: switch 1 (off), switch 2 (on), switch 3 (on), and switch 4 (on). For wire protection, the diagram shows a conduit size between 1 to 1 1/4 inches. 
Grizzl-E Ultimate 40A Hardwire Wiring Diagram (50A Circuit Breaker)
The diagram below illustrates the wiring for a hardwired Grizzl-E Ultimate EV charger. To achieve a maximum output of 40 amps, use 6-8 AWG wires for L1 and L2, and 6-10 AWG wires for the ground (G). The wires are protected by a 3/4 to 1-inch Schedule 40 conduit. A 50A circuit breaker ensures safe operation. This setup provides a charging output of up to 9.6 kW. The diagram also includes the DIP switch settings for 40 amps: switch 1 (off), switch 2 (on), switch 3 (on), and switch 4 (off). 
Grizzl-E Ultimate 32A Hardwire Wiring Diagram (40A Circuit Breaker)
The diagram shows the Grizzl-E Ultimate 32A hardwire installation with a 40A circuit breaker and a maximum output of 7.68 kW. It includes wiring for L1 (Hot 1), L2 (Hot 2), Neutral (N), and Ground (G), with 8 AWG for L1 and L2, and 8-10 AWG for G. The setup uses a 40A double-pole breaker, a neutral busbar, and a ground busbar. The recommended conduit size is 3/4 to 1 inch. DIP switch settings for a 32A maximum current output are: switch 1 (off), switch 2 (off), switch 3 (on), switch 4 (off). 
Grizzl-E Ultimate 24A Hardwire Wiring Diagram (30A Circuit Breaker)
The diagram below shows the wiring for a Grizzl-E Ultimate 24A hardwire installation. To achieve a maximum output of 24A, use 8 AWG wires for L1 and L2, and 8-10 AWG wires for the ground (G). The recommended conduit size is 1/2 to 1 inch. A 30A circuit breaker ensures safe operation. This setup provides a charging output of up to 5.76 kW. The DIP switch settings for 24A maximum current output are: switch 1 (off), switch 2 (on), switch 3 (off), and switch 4 (off). 
Grizzl-E Ultimate 16A Hardwire Wiring Diagram (20A Circuit Breaker)
The diagram below shows the wiring for a hardwired 16A Grizzl-E Ultimate EV charger. To achieve a maximum output of 16 amps, the wiring uses 8 AWG wires for L1 and L2, and 8-10 AWG wires for the ground (G), powered by a 20A circuit breaker for safety. The recommended conduit size is 1/2 to 1 inch. This setup supports a maximum charging output of 3.84 kW. The DIP switch settings for 16A maximum current output are: switch 1 (off), switch 2 (off), switch 3 (off), and switch 4 (off). 
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