ENPHASE EP200G-NA-02-RSD Rapid Shut Down Kit Installation Guide

ENPHASE EP200G-NA-02-RSD Rapid Shut Down Kit

Instructions to use the Rapid shutdown (RSD) switch connection

Each Enphase Storage system with IQ8 PV requires the presence of a rapid shutdown (RSD) switch. Rapid shut down switch is needed to disconnect all PV panels, battery and generator systems in the building/home to ensure the safety of maintenance technicians. When the RSD switch is engaged, the Enphase storage system will be shutdown and the home is connected to the grid. The contents of the Rapid shut down (RSD) switch connections and how to use them are described below

Components that are needed for RSD connection

Wiring the auxiliary contacts in Enpower R2

• The Enpower R2 comes with multiple auxiliary contacts as indicated
• The contacts NC3 and NC4 are for wiring the RSD (indicated in the red box
• The Enpower literature kit comes with cable assembly header.
• Insert the ferrule of the cable header assembly to the feed through header which is indicated
• Tighten the screws on the top (torque 0.22Nm to 0.25Nmto secure the wires.
• Repeat steps D and E to complete wiring of other 3 terminals of  NC3 and NC4.

Layout of auxiliary contacts in Enpower, Terminals for connecting RSD

are indicated in red

Cable header assembly

Feed through header

Tighten these screws to hold the wires in place

Wiring the switch inside the Rapid Shutdown RSD enclosure

• Open the front face of the RSD by loosening the two screws on the front face.
• Create wiring conduit in the top/bottom portion of the enclosure.
• There are knock outs provided for this.
• Screw in 12AWG wires to terminals marked 1,2,3 and 4 of the switch.
• Torque values can be found in the below table.
• Screw in 8-14 AWG wire to the Ground bar within the enclosure.
• Torque values can be found in the below table.
• Draw the wires out through the conduit which has been created in the enclosure.
• Secure the switch to the rear plate of the enclosure by torqueing the screws as indicated.
• There are 2 screws to be torqued.
• The screws can be found in the RSD kit.
• Fit the front face and torque the screws.
• Torque values can be found in the below table.
• The torque rating of each of these wires/screws are as below

Mounting the RSD

• Identify a location which is near the Enpower smart switch to mount the RSD.
• Please note that Enpower and RSD cannot be more than 200 ft apart.
• There are 2 mounting points on the back plate of the enclosure.
• They are marked by red boxes.
• Installers can use any type of mounting as long as they are not exceeding the diameter of each fixing point.
• It is recommended that installers use #8 screw, with a minimum recommended length of 1.5 inches.
• The type of screw is to be determined by installer based on where they wish to mount the RSD.

Mounting location in backplate of RSD

Connect wires from RSD and Enpower

• Connect the cables connected from Terminal 1 and 2 of the RSD to the yellow portion of the cable header assembly from NC3 and crimp it.
• Connect the cables connected from Terminal 3 and 4 of the RSD to the yellow portion of the cable header assembly from NC4 and crimp it. Refer to Figure 5 and table below.
• Connect the cable from the grounding bar to the Ground bar in Enpower.
•  Ensure Cables are properly sheathed and are not lose or exposed to environment.

NC3

| Terminal 1| Terminal 1
Terminal 2| Terminal 2

NC4

| Terminal 1| Terminal 3
Terminal 2| Terminal 4

Functional tests

• Use the ITK to check if the RSD is working as desired.
• When the RSD is engaged turned to OFF position, all the relays except the MID will be open.
• Only the MID relay will be closed. Hence effectively isolating the home from the PV, battery and generator.
• In order to check if the RSD is functioning as required, open the ITK and manoeuvre to the Enpower page.
• Turn the RSD rotary handle to OFF position.
• In the ITK’s Enpower page, click on View Live details.
• In the view live details page, the relay status should be.
• The MID relay should be closed and all other relays should be in open position.
• When RSD handle is shifted to ON position, the Enpower goes back into functioning normally as it was.

Complete the installation by affixing the labels

In order to identify the Rapid shut down switch the following label needs to be pasted at a distance of not more than 3ft (1m) from the RSD, as mandated by the NEC code.In order to earmark the parts of the array which will be shut down by using the RSD the following sticker needs to be pasted in the location specified by the Authority having jurisdiction or at a
distance of not more than 3ft (1m) from from the RSD, as mandated by the NEC code.

Sticker for showing portions of PV array which will be shut down using

RSD

Instructions for initiating Rapid Shut down and Enpower System shut down

Rapid shut down of the system can be initiated by turning the handle of the RSD to the OFF position. With this one step the entire Enphase system PV arrays , Encharge battery, Generators connected to Enpower is shut down and the regulatory requirement for rapid shut down are also met.

NOTE
For more details of the RSD switch options and wiring instructions, please refer to Enpower R2 QIG or the Ensemble R2 design guide.

IMPORTANT SAFETY INSTRUCTIONS

Safety Instructions + DANGER

Risk of electric shock. Risk of fire. Only qualified electricians should install, troubleshoot, or replace the Enpower.

DANGER
Risk of electric shock, Risk of fire

• Do not attempt to repair the Enpower.
• Tampering with or opening the Enpower will void the warranty.
• If the Enpower fails, contact Enphase Customer Support for assistance at enphase.com/enus/support/contact.
• Failing to follow any of these instructions may void the warranty enphase.com/warranty

In Case of Fire or Other Emergency

In all cases
If safe to do so, switch off the AC breaker for the Enpower circuit, and if an isolator switch is present, switch off the AC isolator for the Enpower circuit.  Contact the fire department or other required emergency response team. Evacuate the area.

In case of fire
When safe, use a fire extinguisher. Suitable types are A, B, and C dry chemical fire extinguishers. Additional extinguishing media include carbon dioxide, or alcohol-resistant foams.

In case of flooding
Stay out of water if any part of the Enpower or wiring is submerged. If possible, protect the system by finding and stopping the source of the water, and pumping it away. If water has contacted the UNIT, call your installer to arrange a inspection. If you are sure that water has never contacted the battery, let the area dry completely before use.

In case of unusual noise, smell or smoke
Ensure nothing is in contact with the Enpower or in the venting area on top of the Enpower. Ventilate the room. Contact Enphase Customer Support at enphase.com/en us/support/contact.

Safety and Advisory Symbols

DANGER
This indicates a hazardous situation, which if not avoided, will result in death or serious injury.

WARNING
This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction. Use extreme caution and follow instructions carefully.

NOTE
This indicates information particularly important for optimal system operation. Follow instructions carefully.

+| DANGER: Risk of electric shock. Do not use Enphase equipment in a manner not specified by the manufacturer. Doing so may cause death or injury to persons, or damage to equipment.
---|---
+| DANGER: Risk of electric shock. Do not install the Enpower without first removing AC power from the photovoltaic system and ensuring that the DC switch on the Enphase Encharge batteries are off. Disconnect the power coming from the photovoltaics and ensure that the DC switch on the En- charge batteries are off before servicing or installing.
+| DANGER: Risk of electric shock. Risk of fire. Do not work alone. Someone should be in the range of your voice or close enough to come to your aid when you work with or near electrical equipment.
+| DANGER: Risk of fire. Do not allow or place flammable, sparking, or explosive

items near the Enpower.

+| DANGER: Risk of electric shock. In areas where flooding is possible, install

the Enpower at a height that prevents water ingress.

| WARNING: Risk of equipment damage. Enpower is shipped and stored on its back. The upright position is only needed when installed.
| WARNING: You must install the Enpower only on a suitable wall using an Enphase wall-mount bracket.
| WARNING: Before installing or using the Enpower, read all instructions and cautionary markings in this guide and on the equipment.
| WARNING: Do not install or use the Enpower if it has been damaged in any way.
| WARNING: Do not sit on, step on, place objects on, or insert objects into the Enpower.
| WARNING: Do not place beverages or liquid containers on top of the

Enpower. Do not expose the Enpower to flooding.

✓| NOTE: Perform installation and wiring, including protection against lightning and resulting voltage surge, in accordance with all applicable local electrical codes and standards.
✓| NOTE: Because Encharge is grid forming, you must install signage in accord- ance with NEC articles 705, 706, and 710.
✓| NOTE: Using unapproved attachments or accessories could result in dam- age or injury.
✓| NOTE: Install properly rated over current protection as part of the system installation.
✓| NOTE: To ensure optimal reliability and to meet warranty requirements, the Enpower must be installed and/or stored according to the instructions in this guide.
✓| NOTE: The Enpower is compatible only with the IQ Envoy or Envoy

S-metered communications gateway properly fitted with USB hub, USB radios, and production and Consumption/PCS CTs. The Envoy is required for operation of the Enpower. Earlier versions of the Enphase Envoy commu- nications gateway are incompatible.

✓| NOTE: The Enphase Enpower is intended to operate with an Internet connec- tion through the Envoy. Failure to maintain an Internet connection may have an impact on the warranty. See Limited Warranty for full terms and services (enphase.com/warranty).
✓| NOTE: When replacing an Enphase Enpower, you must replace it with an Enpower of the same type, with the same AC current rating.
✓| NOTE: Properly mount the Enpower. Ensure that the mounting location is structurally suited to bearing the weight of the Enpower.
✓| NOTE: During use, storage, and transport, keep the Enpower:

Properly ventilated

Away from water, other liquids, heat, sparks, and direct sunlight

Away from excessive dust, corrosive and explosive gases, and oil smoke

Away from direct exposure to gas exhaust, such as from motor vehicles a location compliant with fire safety regulations

In a location compliant with local building codes and standards

1| NOTE: While Enpower provides capability for connection of a generator, it does not presently support use with generators. Do not attempt to connect a generator until Enpower is ready to support a generator. This functionality is reserved for future use and will require an upgrade process to be followed by a qualified electrician.
2| NOTE: Enpower is not suitable for use as service equipment in Canada.

Environmental Protection

ELECTRONIC DEVICE: DO NOT THROW AWAY. Waste electrical products should not be disposed of with household waste.

References

• Enphase Community
• Warranty and labor details for our products | Enphase Resources
• Harness the sun to make, use, save, and sell your own power. | Enphase

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