Foxboro™ DCS G61 Tricon Termination Enclosure

Overview

The G61EcoStruxure™ Triconex™ Tricon termination enclosure is specifically

designed for housing Triconex termination devices and additional customer-supplied

terminal blocks for marshalling. This enclosure may accommodate the termination of

Tricon modules which are housed in a G60 Tricon System Enclosure or G62/G72

Tricon System and Termination Enclosure.

The G61enclosure is available as a vented or sealed enclosure. It can be configured

with:

• Uptosevenvertical DIN rails for mounting of Triconex termination devices and

additional customer-supplied terminal blocks for marshalling

• Redundantpowersupplies (480 W or 960 W 24 VDCpower supplies) for field

power

The G61vented enclosure is a free-standing, floor mounted unit with an IP43/55

rating for location in mild (ordinary) environmental areas.

The G61sealed enclosure is a free-standing, floor mounted unit, with options for

either an IP55 or IP66 rating for location in harsh environments.

Sealed enclosures with an IP66 rating provide a higher level of protection from

airborne contamination.

NOTE: In regions that require EMC compliance, you must order the EMC

compliance option if the Triconex termination devices for Tricon modules SMM or

SRXMwill be installed in this enclosure. Without these termination devices, the

enclosure already fulfills the requirements for EMC compliance.

An optional door intrusion monitoring switch is available for each door on this

enclosure. Each switch is prewired to a set of alarm status terminal blocks.

The G61enclosure can be installed bayed or adjoined to other Triconex enclosures 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 Foxboro for

use with the Tricon equipment.

Features

• Uptoseven1.800 mm(70.8 in) vertical DIN rails for mounting of termination

assemblies (TAs) and terminal blocks for marshalling, to provide a total of 12.6 m

(41.3 ft) of linear rail space

• Ventedorsealed enclosure selection for use in ordinary (IP 43/55) or harsh (IP

55/66) rated environments

• EMCcompliantversion available — vented (IP43/55) with roof-mounted fans

• Option for redundant 480 W (P0923VD) or 960 W 24 V DCfield power supplies

• Mainpowerentry includes disconnect terminal blocks, or 10A, Type D, double

pole circuit breakers

• Optional EMC/RFI line filters for redundant main power (Triconex recommended)

• Alarmcontact terminal block assembly for door intrusion monitoring switches,

enclosure temperature switch, and field power supply status

• Optional door intrusion monitoring

• Bottomcable entry for standard power wiring and cables for Triconex termination

devices, such as External Termination Panels (ETPs), Field Terminations, and

External Termination Assemblies (ETAs)

NOTE: Duetothe placement of field power supplies, top entry is not

recommended for this enclosure.

• Available PVC or non-PVC wireways for field I/O cabling, with optional signal

segregation barrier plate

• Generous76mmx102mm(3inx4in)wireductswith adequate capacity for

most wire management

• Compactdesign to minimize use of floor space with both front and rear access

that allow maximum packaging density of control environment

• Conveniently placed eyebolts for transporting and lifting the enclosures

• A100mm(4in)plinth increases total enclosure height of 2.160 mm (85.0 in)

• Comfort handles with push button/keylocks

• Twogroundpoints; two protective ground studs, and one isolated protective

ground rail

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.

For sealed, non-adjoined G61 enclosures, heat is transferred from the interior

surfaces of the enclosure and then dissipated by the enclosure's exterior surfaces into

the plant environment. Air is not exchanged between the enclosure's interior and the

outside environment. Therefore, contaminants are minimized inside the enclosure.

The enclosures support convenient top or bottom cable entry for TA cabling and

power wiring. Vented enclosures with roof-mounted fans are not recommended with

top cable entry, due to the location of the power supplies.