Foxboro G60 Tricon System Enclosure I/A Series® HARDWARE

The G60 Tricon System Enclosure provides environmental

protection and housing for Triconex™ Tricon system chassis

and modules.

FEATURES

The G60 Tricon system enclosure offers the following features:

• Accommodates up to three Tricon system chassis

• Main power entry includes disconnect terminal

blocks for 120/240 V ac or 125 V dc systems, or

10 A, Type D, double pole circuit breakers for

120/240 Vac systems.

• Optional EMC/RFI line filters for redundant main

power (Triconex recommended).

• Vented enclosure for use in ordinary (IP 43) rated

environments

• Option for EMC compliance

• Compact design to minimize use of floor space

with both front and rear access that allows

maximum density of enclosures in a control room

environment

• Options for front and rear access or front access

only, both with optional safety glass front door

• Optional door intrusion monitoring

• Alarm contact terminal block assembly for main

chassis alarming, door intrusion monitoring

switches, enclosure temperature switch and field

power supply status.

• Bottom cable entry for power wiring and cables

for Triconex termination devices, such as External

• Termination Panels (ETPs), Field Terminations and

• External Termination Assemblies (ETAs)

• Conveniently placed eyebolts for transporting

and lifting the enclosures

• A 100 mm (4 in) plinth - total enclosure height of

2160 mm (85.0 in)

• Comfort handles with push-button/keylocks

Three earth (ground) points; two protective earth

(ground) studs, one isolated protective earth

(ground) rail and one isolated instrument earth

(ground) rail.

INTRODUCTION

The G60 enclosure is specifically designed for

housing Tricon system chassis and modules. It is

designed for use with the G61 or G66 Tricon

Termination Enclosures, and is available as a vented

enclosure only.

The G60 enclosure can be configured with up to

three Tricon chassis. Main power entry can include

optional EMC/RFI line filters. It is a free-standing,

floor mounted unit with an IP 43 rating for location in

mild (ordinary) environmental areas. A version is

available with optional EMC compliance.

NOTE

In regions that require EMC compliance, you

must order the EMC compliance option if

Tricon modules SMM or SRXM will be

installed in a chassis in this enclosure.

Without these modules, the enclosure

already fulfills the requirements for EMC

compliance.

The G60 enclosure, IP 43 rated, can be installed

bayed or adjoined to others to maximize the use of

floor space and ease of cabling. The enclosures can

be bayed together using third-party kits.

This enclosure and its configurations have been

tested and qualified by Invensys for use with the

Tricon chassis.

NOTE

It is possible to configure the G60 enclosure

with front access only and the safety glass

front door. However, since no ventilation is

located on a rear wall, the end-user is

responsible for locating adequate inlet

ventilation to maintain proper operation of

the enclosure’s equipment, through

ventilation on a side wall or from an adjoined

cabinet.

Vented enclosures have a limited thermal load (see

“Operating Temperatures (Ambient)” on page 8).

INGRESS PROTECTION

The metal enclosures provide the outer layer of

protection for the control electronics. Other layers are

provided by the module covers and built into the

modules. This approach to protection means that a

minimum of contaminants in the plant environment

reaches the control components, thus greatly

extending the life of the equipment.

DUAL THERMOSTAT

An optional dual (high/low) thermostat is available to

monitor enclosure temperature extremes.

DOOR INTRUSION MONITORING

An optional door intrusion monitoring switch is

available for each door on the enclosure. Each switch

is prewired to a set of alarm status terminal blocks.