Technical information

The CEC, also known as CSA 22.1, a specific standard for “Industrial Control

Panel” (CSA 22.2 #14) is added to the CEC, also known as CSA 22.1.The standard

contains applicable additional prescriptions for the sector of the automation

panels.

3.1 Component certification

A component certification is evident by applying a mark by the certifying

laboratory. Underwriters Laboratory for instance affixes the UL “label”, while

the Canadian Standard Association affixes the CSA mark. It is worth noticing

that Underwriters Laboratory issues two different types of approvals,“Listed

(UL)” and “Recognised (UR)”, each of which is characterised by a specific mark,

UL and UR respectively.

The difference lies in the field of application of the marked product:

UL listed: it deals with components defined as "complete

devices", or finished products, with an autonomous

function.They are marked with the name and the logo of

the manufacturer,with all the data concerning tests and

the UL mark.These components do not require specifically

trained personnel for installation (the typical example is a

contactor,circuit breaker,etc.) These components are

managed by the manufacturer,but are verified by the UL

Inspector according to product quantities.

UL Recognised:This mark is used for components that do

not have their own function but are assembled with other

parts and components, a UL Recognition mark is applied

on the finished product.The UL-recognized components

are marked only with the name and the logo of the

producer and the type.These components require

qualified personnel for their installation, in compliance

with the prescriptions and the use limits set by the

manufacturer (conditions of acceptability indicated in the

files or UL certification report).

The Recognised UR mark is exclusively issued for the immediate identification

of the product in the American market and has not meaning in other markets.

To increase product turnover and to simplify the appraisal procedures, the two

principal UL and CSA organisations and all NRTL laboratories have reached an

agreement of mutual acceptance of certification tests in 1998.

INTRODUCTION TO NORTH AMERICAN STANDARDS

100-C

1492-J