Leviton R Series - User Manual

R, P, B, and M Series
Surge Protective Devices
INSTALLATION INSTRUCTIONS
ENGLISH
PK-A3478-10-00-4A
WARNINGS:
• HAZARD OF ELECTROCUTION AND SHOCK. CAREFULLY READ AND FOLLOW INSTRUCTIONS.
• Only electricians should install or service Surge Protective Devices (SPDs).
• Hazardous voltages exist within SPDs.
• SPDs should never be installed or serviced when energized.
• Use appropriate safety precautions including Personal Protection Equipment.
• Failure to follow these instructions can result in death, serious injury, and/or equipment damage.
• Read this manual in its entirety prior to installing.
Bonding and Grounding Hazard
Verify that the neutral conductor in the service entrance equipment is bonded to ground in accordance with the National Electric Code (NEC
®
)
and all applicable codes. During installation into an electrical system the SPD must not be energized until the electrical system is completely
installed, inspected and tested. All conductors must be connected and functional including the neutral (if required).
The voltage rating of the SPD and system must be veried before energizing the SPD. Failure to follow these guidelines can lead to abnormally
high voltages at the SPD. This may cause the SPD to fail. The warranty is voided if the SPD is incorrectly installed and/or if the neutral conductor
in the service entrance equipment or downstream of separately derived systems is not bonded to ground in accordance with the NEC.
Do Not Hi-Pot Test SPDs
Any factory or on-site testing of power distribution equipment that exceeds normal operating voltage such as high-potential insulation testing, or
any other tests where the suppression components will be subjected to higher voltage than their rated Maximum Continuous Operating Voltage
(MCOV) must be conducted with the SPD disconnected from the power source. For 4-wire systems, the neutral connection at the SPD must also
be disconnected prior to performing high-potential testing. Failure to disconnect the SPD and associated components during elevated voltage
testing will damage the SPD and will void the warranty.
CAUTIONS:
SPDs on Ungrounded Systems
Ungrounded systems are inherently unstable and can produce excessively high line-to-ground voltages during certain fault conditions. During
these fault conditions, any electrical equipment, including an SPD, may be subjected to voltages which exceed their designated ratings. An SPD
designated specically for ungrounded systems should be used.
Unpacking and Preliminary Inspection
Inspect the entire shipping container for damage or signs of mishandling. Remove the packing materials and further inspect the unit for any
obvious shipping damages. If any damage was found, and is a result of shipping or handling, immediately le a claim with the shipping company
and forward a copy to Leviton at industrial@leviton.com.
Storage Environment
This SPD should be stored in a clean, dry environment. Storage temperature range is -49°F to 140°F (-45°C to 60°C). Avoid exposure to
high condensation.
© 2023 Leviton Mfg. Co., Inc.
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Pre-Installation
Operating Environment
Series R, P, and B are NEMA 4X enclosures and Series M is NEMA 4 enclosure. Before installing, ensure that your enclosure type and
application are appropriate with regard to moisture, dirt, excessive dust, ammable materials or atmospheres, corrosive vapors, etc. Please
consult factory if enclosure needs to be changed. The R and P Series are designed to work in a temperature range of -31°F to +185°F (-35°C to
+85°C), and the B and M Series -40°F to +185°F (-40°C to +85°C) with a relative humidity of 0% to 95% (noncondensing). Excessive temperature
may inadvertently operate internal thermal over-temperature protectors.
Line Side versus Load Side Installation
The R and P Series SPDs are Type 1, and the B and M Series SPDs are Type 2, as dened in UL 1449 and the National Electrical Code. Type 1
SPDs are intended to be installed on the line side of the service disconnect overcurrent device but may also be installed on the load side. Type 2
SPDs are intended to be installed on the load side of the service disconnect overcurrent device.
NOTE: Devices with UL1293 Filtering are qualied to the same standards, but can only be installed as Type 2 devices per UL specication.
Audible Noise
SPD background noise is negligible or non-existent, and does not restrict the location of installation.
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For Technical Assistance Call: 1-800-824-3005 (USA Only) or 1-800-405-5320 (Canada Only)
www.leviton.com
FOR CANADA ONLY:
For warranty information and/or product returns, residents of Canada should contact Leviton in writing at Leviton Manufacturing of Canada
ULC to the attention of the Quality Assurance Department, 165 Hymus Blvd, Pointe-Claire (Quebec), Canada H9R 1E9 or by telephone
at 1-800-405-5320.
LIMITED 5 YEAR WARRANTY AND EXCLUSIONS
Leviton warrants to the original consumer purchaser and not for the benet of anyone else that this product at the time of its sale by Leviton is free
of defects in materials and workmanship under normal and proper use for ve years from the purchase date. Leviton’s only obligation is to correct
such defects by repair or replacement, at its option. For details visit www.leviton.com or call 1-800-824-3005. This warranty excludes and
there is disclaimed liability for labor for removal of this product or reinstallation. This warranty is void if this product is installed improperly or in an
improper environment, overloaded, misused, opened, abused, or altered in any manner, or is not used under normal operating conditions or not
in accordance with any labels or instructions. There are no other or implied warranties of any kind, including merchantability and tness
for a particular purpose, but if any implied warranty is required by the applicable jurisdiction, the duration of any such implied warranty, including
merchantability and tness for a particular purpose, is limited to ve years. Leviton is not liable for incidental, indirect, special, or consequential
damages, including without limitation, damage to, or loss of use of, any equipment, lost sales or prots or delay or failure to perform this
warranty obligation. The remedies provided herein are the exclusive remedies under this warranty, whether based on contract, tort or otherwise.
FCC STATEMENT:
This device complies with Part 15 of the FCC Rules and ISED License-exempt RSS standard(s). Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference
that may cause undesired operation. Changes or modications not expressly approved by Leviton could void the user’s authority to operate
the equipment.
These limits are designed to provide reasonable protection against harmful interference in a commercial installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This Class A digital apparatus complies with Canadian CAN ICES-3(A)/NMB-3(A).
FCC SUPPLIER’S DECLARATION OF CONFORMITY:
Models R, B, P, and M Series Surge Protective Devices are sold by Leviton Manufacturing Inc. 201 N Service Rd, Melville, NY 11747. This device
complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired operation.
TRADEMARK DISCLAIMER:
Use herein of third party trademarks, service marks, trade names, brand names and/or product names are for informational purposes only,
are/may be the trademarks of their respective owners; such use is not meant to imply affiliation, sponsorship, or endorsement.
WEB VERSION

Summary

FCC Statement and Compliance

Limited 5 Year Warranty

Safety Warnings and Precautions

Installation Instructions

Pre-Installation

Details pre-installation steps including environment, wiring, and specific considerations.

Operating Environment

Details enclosure types and operational temperature/humidity limits.

Line Side vs. Load Side Installation

Explains installation location requirements for Type 1 and Type 2 SPDs.

Audible Noise

Notes that SPD background noise is negligible and does not restrict location.

Installation - Pre-Installation Details

Lead Lengths and Maximizing SPD Performance

Guidance on minimizing parasitic losses by locating SPDs close to circuits and using short, straight leads.

Voltage Rating Verification

Ensures the SPD's voltage rating matches the power distribution system before installation.

Circuit Breaker Connection

Recommendation for connecting load-side SPDs via a circuit breaker for protection.

System Grounding

Emphasizes the use of an equipment grounding conductor and single-point ground system for best performance.

Retrofit into Existing Panel

Instructions for retrofitting SPDs into panels lacking breaker positions, considering NEC rules.

Installation Steps and Operation

Pre-Plan Your Installation

Key considerations before installation, including codes, SPD placement, and breaker selection.

LED Operation

Explains the meaning of GREEN LEDs indicating complete protection and failure indication.

Audible Alarm

Describes the audible alarm signaling suppression element failure and how to silence it.

Dry Contacts

Details the function and specifications of dry contacts for status monitoring.

Maintenance

Recommends periodic inspection of diagnostic indicators and keeping the SPD clean.

Troubleshooting

Information on contacting Leviton for service-related issues.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

This document describes the R, P, B, and M Series Surge Protective Devices (SPDs) from Leviton, designed to safeguard electrical systems from harmful voltage surges. These devices are intended for installation by qualified electricians only, emphasizing safety precautions due to hazardous voltages within the units.

Function Description

Leviton SPDs are designed to protect electrical equipment by diverting excess voltage from surges away from sensitive components. They feature internal overload protection elements and have demonstrated high Short Circuit Current Ratings (SCCRs). The R and P Series SPDs are Type 1, suitable for installation on either the line or load side of the service disconnect overcurrent device. The B and M Series SPDs are Type 2, intended for installation on the load side of the service disconnect overcurrent device. Devices with UL1293 Filtering are also Type 2.

The SPDs include diagnostic indicators, specifically LEDs, to provide visual feedback on their operational status. When the LEDs are green, it signifies that complete protection is present. In the event of a Metal Oxide Varistor (MOV) stack failure, the corresponding LED will turn off, indicating a compromised protection mode.

In addition to visual indicators, the SPDs are equipped with an audible alarm. This alarm will sound upon the failure of a suppression element, mirroring the LED indication. The alarm can only be silenced by removing power to the SPD via its breaker. However, removing power will leave the system unprotected.

For remote monitoring, the SPDs incorporate dry contacts. These contacts consist of three #22 AWG wires and change state when any suppression element reaches its end of life or when power is lost. This feature allows for the monitoring of the SPD's status from a remote location. The dry contacts are designed for low-voltage or control signals only, with a maximum switching current of 2A and a maximum switching voltage of 240V AC. For higher energy applications, additional relay implementation outside the SPD is required. The WHITE wire is Common, BLACK is Normally Open, and BROWN is Normally Closed. If the dry contacts are not utilized, it is recommended to insulate the lead ends, coil, and secure them.

Usage Features

Proper installation is crucial for maximizing SPD performance. SPDs should be located as close to the circuit as possible, utilizing the shortest and straightest possible leads to minimize parasitic losses. For new construction, breaker locations should be adjusted accordingly. If longer leads are unavoidable, they should be gently twisted (one to two twists per foot) or tie-wrapped together.

Before installation, it is essential to verify that the SPD's voltage rating matches the power distribution system. The SPD's nameplate voltage or model number and configuration must align with the intended power source.

When connecting the SPD on the load side of the main disconnect, it is recommended to connect via a circuit breaker. This breaker serves as the intended disconnect switch and provides short circuit protection for the connecting conductors.

An equipment grounding conductor must be used on all electrical circuits connected to the SPD. For optimal performance, a single-point ground system is recommended, where the service entrance grounding electrode system is connected and bonded to all other available electrodes, building steel, metal water pipes, and driven rods. For sensitive electronics and computer systems, the ground impedance measurement should be as low as possible. If metallic raceway is used as an additional grounding conductor, an insulated grounding conductor should be run inside the raceway, ensuring adequate electrical continuity at all raceway connections. A separate isolated ground for the SPD is not recommended. On 4-Wire Power Systems, neutral-to-ground bonding (Main Bonding Jumper) must be installed per the NEC; failure to do so will damage the SPDs.

For retrofitting into existing panels without available breaker positions, applicable codes must be followed. Consolidating loads to free up breaker positions is an option. A 10 ft tap rule in NEC 240.21(B)(1) allows tapping the bus if the tap conductors are rated at least 10% of the panel's ampacity. If the panel's ampacity is larger than the SPD's wires, the bus can be tapped per NEC 240.21(B)(1), running appropriate size conductors to a safety switch fused to 30A. The SPD should then be mounted immediately adjacent to the safety switch.

Pre-installation planning includes meeting all National and Local codes (NEC Article 285 addresses SPDs), mounting the SPD as close to the panel or equipment as possible to keep leads short, ensuring leads are as short and straight as possible (including neutral and ground), considering breaker positions closest to the SPD and the panel's neutral and ground wires. Suggested breaker sizes are 20A for the R, P, and B Series, and 30A for the M Series. The system must be grounded per NEC and clear of faults before energizing the SPD.

Installation involves checking all voltages with a voltmeter, pre-planning dry contact installation, turning off power at the panel, confirming de-energization, identifying connection and breaker locations, and ensuring short leads. An appropriately-sized knockout should be removed from the panel. The SPD is then mounted, connecting to equipment using an approved wiring method, including seals appropriate for the enclosure rating. Conductors should be connected as short and straight as possible. Hi-Legs are Phase B (ORANGE). Conductors should be labeled or marked as appropriate: BLACK for Energized, WHITE for Neutral, GREEN for Ground, and ORANGE for Hi-Leg (Delta units only). The system must be bonded per NEC and clear of hazards or faults before energizing. Finally, energize and confirm proper operation of indicators and/or options. If the Audible Alarm cycles, power must be turned off immediately, and Leviton should be contacted.

Maintenance Features

Leviton SPDs require minimal maintenance. Periodic inspection of diagnostic indicators is recommended to ensure proper operation. Keeping the SPD clean is also advised. For any service-related issues, Leviton customer support should be contacted.

Leviton R Series Specifications