MTL Instruments MTL1991 Data sheet

DRAFT - 28 June 2017

Technical data

MTL signal conditioners

MTL1991 Power Feed
and Alarm Module

MTL1000 power bus module

The MTL1991 provides the power supply
feed to the power bus for the MTL1000
series isolators. A relay alarm contact and
LED indicate power supply status. 2 modules
may be used to provide a redundant power
feed to the power bus when feeding power
via terminal 5 with a maximum load of 1A.
For single power feed use terminal 6, the
maximum recommended load is 2A.

June 2017
EPS 1991 rev 3

1

ALARM

2

D E

Vs+
Vs-

Terminals Function

1 Alarm

2 Alarm

5 Power supply input +ve

6 Power bus repeat +ve

7 Power supply input -ve

D Power bus -ve

E Power bus +ve

5

V+ supply input 19-32V dc 1A

672A

Direct V+ supply input (max 2A)

V- supply input

Bus supply output

SPECIFICATION see also common specification

Power supply voltage

Relay contact rating

Maximum power dissipation

Eaton Electric Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2017 Eaton
All Rights Reserved
Publication No. EPS 1991 rev 3 280617
June 2017

19V to 32V DC

40V 0.5A max resistive

<1W (power via terminal 5)

<0.3W (power via terminal 6)

EUROPE (EMEA):

[phone]

[e-mail]

THE AMERICAS:

[phone]

[e-mail]

ASIA-PACIFIC:

[phone]

[e-mail]

The given d ata is only intended as a p roduct
descrip tion and sho uld not be reg arded as a legal
warrant y of properties or gu arantee. In t he interest
of further technical developments, we reserve the
right to make de sign changes.

1