Leviton 1O277-1W Quick start guide

Brand: Leviton

Model: 1O277-1W

Type: Quick start guide

CT1

CT2

X1 X2 X1 X2

CT2 CT1

CT INPUTs

INPUTS

VOLTAGE

ISOLATED

OUTPUT

RS485

10 1K A B

COM

L2 L1 N

Quick Start Installation Guide

Series 1000 3-Wire Meter Wiring Detail

Current Transformer (CT) Wiring

Colored Wire to X1

White Wire to X2

L1 L2

Observe Proper Phase Wiring

CT1 & Line 1 Voltage Match

CT2 & Line 2 Voltage Match

CT Placement

RED LED Reverse Phase Indicator

If illuminated, installation is incorrect.

Check the following:

1- CT Line and Load Orientation

2- Verify Reference Voltage Connections Match CT

Phase Placement

3- Proper Polarity of Conductors at CT Input Terminals

GREEN LEDs

Left - 1000 Watt Hour Duty Cycle

(500 wHrs ON and 500 wHrs OFF)

Right - 10 Watt Hour Duty Cycle

(5 wHrs ON and 5 wHrs OFF)

Neutral

Bus

15A 3-Pole

Circuit Breaker*

Line 1 (L1)

Power for the Meter

Reference

Voltage

Connections*

*Use appropriate wire gauge based on breaker rating.

Load

Center

H1 or Label

Must Face

Source (Line)

0RA4850000001 REV 1

In accordance with NEC, CTs may not be installed in any panel

board where they exceed 75% of the wiring space of any

cross-sectional area.

Variations and Installation of Current Transformers (CTs)

To reduce the risk of electric shock, always open or discon-

nect the circuit from the power distribution system of a

building before installing or servicing current transformers.

Step 2

Install Conduit per

Local/NEC Code

Step 3

Install Leviton Split

Core or Solid Core CTs

Step 4

Connect Meter to

15A 2-Pole Breaker

or Inline Fuses

Load Center

Metering Solutions

Series 1000 3-Wire Meter

Quick Start Installation Guide

Explanation of Warning Symbols

Indicates the need to consult the

operation manual due to the

presence of a potential risk.

Indicates the presence of electric

shock hazards. Prior to proceeding,

de-energize the circuit and consult

the operation manual.

Indicates that the equipment is

protected throughout by double

insulation.

WARNING

• Installation of electric meters requires working with possibly hazardous

voltages. These instructions are meant to be a supplement to aid trained,

qualiﬁed professionals.

• Turn off all power supplying the equipment before performing any wiring

operations. Use a properly rated voltage sensing device to conﬁrm power

is off.

• Bonding is not automatic for metal conduit connections; separate bonding

is to be provided.

• Installations should be done in accordance with local codes and current

National Electric Code requirements.

• Equipment used in a manner not specied by this document impairs the

protection provided by the equipment.

Failure to follow these warnings could result in serious injury or death.

Installation of Voltage Lines

Check to make sure service

is disconnected before any

connections are made.

Leviton Manufacturing Co., Inc. Lighting & Energy Solutions

201 N. Service Rd. Melville, NY 11747-3138

Tech Line: 1-800-824-3005

Fax: 1-800-832-9538

www.leviton.com/les

Installation Notes

These instructions apply to Leviton Series 1000 3-Wire Meters. See

wiring detail on reverse side.*

Step 1

Mount meter to surface at desired location near load center. Meter

is designed to be permanently mounted.

Step 2

Install conduit between meter and panel. Pull voltage reference and

CT secondary wires through conduit. Wire sizes and ratings must

comply with the NEC and local codes.

Step 3

Connect CT secondary wires to appropriate terminals on meter;

white wires always land on X2 terminals (see wiring diagram). Install

split core or solid core CTs on feeder wires. Observe proper line, load

and phase orientation. “H1” or label must face source (line).

Step 4

Connect the meter to a low amperage (15A) circuit breaker for

meter power and reference voltage. Single pole, two pole or three

pole based on meter type. Use the appropriate wire gauge based on

breaker rating. If space is not available for breaker, voltage can be

sourced by tapping off main lugs (per NEC and local code). Use fast-

acting fuses 0.5A-2A with appropriate voltage ratings for service.

Step 1

Mount Leviton

Submeter

*Visit www.leviton.com/meters for the complete installation manual.

0RA4850000001 REV 1

Leviton 1O277-1W Quick start guide

Leviton 1O277-1W Quick start guide

Leviton 1O277-1W Quick start guide

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