Multi 9

System Catalog

Section 1—Introduction

7

03/2008

© 2002–2008 Schneider Electric All Rights Reserved

Section 1—Introduction

The Multi 9 modular system of miniature circuit breakers and supplementary protectors, accessories,

and peripherals provides complete protection of equipment or especially sensitive circuits within the

equipment. Installation labor and space are both minimized by the modular architecture of the Multi 9

system, whether a single protective device or multiple devices with their accessories are being used.

Schneider Electric offers an extensive line of UL 489 Circuit Breakers and UL 1077 Supplementary

Protectors. In addition, a variety of IEC certified Circuit Breakers and Accessories are available for

OEM's whose products are destined for export beyond North America. To an OEM, this means that

one family of electrical protection products can be used regardless of equipment destination.

The Standards include:

Potential applications include semi-conductor machines, communication equipment, process control

panels, computers, medical equipment, electronic controls, transformers, power supplies, and other

electrical equipment.

System Flexibility

The Multi 9 System includes an extensive line of field-installable accessories. Plug-on electrical auxiliaries

include shunt trip, undervoltage release, auxiliary switch, and alarm switch. Other protection devices include

residual current devices, dc circuit breakers, and switches. Control and display devices include signal

lamps, push buttons, and motor operators. There are also mechanical accessories for locking, operating,

shielding, mounting, etc. The following diagram shows many of the Multi 9 system accessories.

•

UL 489 Standard for Circuit Breakers

•

UL 489A Standard for DC Communication Applications

•

UL 1077 Standard for Supplementary Protectors

•

UL 1053 Ground Fault Sensing and Relaying Equipment

•

IEC 60947-2 Low-voltage switchgear and controlgear - Part

2: Circuit-breakers

•

CSA C22.2 No. 5 Standard for Circuit Breakers

•

CSA C22.2 No. 235 Supplementary Protectors

•

CCC Pending 4Q2007

•

C60 Miniature Circuit Breakers are RoHS Compliant

Figure 1:

Functional Diagram of Multi 9 System

CI

Impulse

Counter

CH

Hour

Counter

V

Signal

Lamp

V

Signal

Lamp

BP

Push

Button

(N.O.)

or

Signal

BP

Push

Button

(N.C.)

or

Signal

TM

Motor

Operator

SD

Alarm

Switch

OF

Aux

Switch

MX + OF

Shunt

Trip

&

Aux

Switch

MN

Under-

voltage

Release

C60

Circuit

Breaker

Vigi or GFP

Residual

Current Device

IH

and

IHP

Time

Switches

I

Switch

CM

Selector

Switch

DPN-N

Residual

Current

Circuit

Breaker

OFS

&

Elect.

Accessory

GFP

Ground

Fault

Protector

Status and Display Output

Plug-on Electrical Auxiliaries

Other devices used with or instead of the C60 device

Protected Line

Control Inputs

Switch or

Control

Metering

Device