A-4PHI-OB Installation

REV0720

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1.2 – Safety & Protective Features

1.2.1 – 80A Breaker

All PHI 3.5 Batteries within the AccESS unit are outfitted with an 80A hydraulic/magnetic circuit

breaker. This breaker increases safety during shipping and installations and allows the PHI 3.5

Battery to effectively be turned “OFF” or “ON.” The breaker works in conjunction with the built-in

battery management system (BMS) and creates additional safety, efficiency and functionality to

the overall power storage system.

Figure 1.0 - PHI 3.5 kWh 48V Circuit Breaker

CAUTION:

Circuit Breakers, Disconnects and Fuses should be employed throughout several points of a

power storage and generation installation to effectively isolate and protect all components of the system

to safeguard against faults, short circuits, polarity reversals or a failure of any component in the overall

system. Fuses, breakers, wiring ratings and values should be determined by established standards and

evaluated by certified electricians, licensed installers, and regional code authorities. Although each PHI

3.5 Battery contains both a circuit breaker and an internal BMS with circuitry that protects the Lithium

Ferrous Phosphate cells from overcharge, over-discharge and extreme load amperage, the PHI 3.5

Batteries must always be installed with a charge controller and the appropriate settings to protect the PHI

3.5 Battery from open PV voltage and other high voltage charging sources. The PHI 3.5 Battery

Management System (BMS) and internal circuit breaker alone will not protect the PHI 3.5 Batteries from

these extreme electrical phenomena. Failure to adhere to installation protocol will void the Warranty.

CAUTION:

Verify polarity at all connections with a standard volt meter before 1) energizing the system

and 2) turning the PHI 3.5 circuit breaker “ON/OFF” switch to the “ON” position.

Reverse polarity

at the

battery terminals will void the Warranty and destroy the PHI 3.5 Batteries.

PHI 3.5 Batteries pose some risk of shock or sparking during the installation and initial wiring and

connection process. This is consistent with all other battery-based storage formats. Be sure to turn the

built-in breaker to the “OFF” position to minimalize the risk of shock or sparks during the installation and

commissioning of the system. Use of insulated gloves, clothing and footwear is always recommended

when working in close proximity to electrical devices. Cover, restrain or remove jewelry or conductive

objects (metal bracelets, rings, belt buckles, metal snaps, zippers, etc.) when working with any electrical

or mechanical device. Cover or restrain long hair and loose clothing when working with any electrical or

mechanical device.