EB3C Datasheet, PDF (20/20 Pages) List of Unclassifed Manufacturers – Relay Barriers

AS-Interface Components
EB3L Lamp Barrier
Precautions for Operation
6. Wiring for Intrinsic Safety
(1) The voltage applied on the general circuit connected to
the non-intrinsically safe circuit terminals of the EB3L
lamp barrier must be 250V AC, 50/60Hz, or 250V DC at
the maximum under any conditions, including the volt-
age of the power line and the internal circuit.
(2) When wiring, take into consideration the prevention of
electromagnetic and electrostatic charges on intrinsi-
cally safe circuits. Also, prevent intrinsically safe circuits
from contacting with other circuits.
(3) The intrinsically safe circuits must be separated from
non-intrinsically safe circuits. Contain intrinsically safe
circuits in a metallic tube or duct, or separate the intrinsi-
cally safe circuits referring to the table at right.
Note: Cables with a magnetic shield, such as a metallic sheath, prevent elec-
tromagnetic induction and electrostatic induction, however, a non-
magnetic shield prevents electrostatic induction only. For non-mag-
netic shields, take a preventive measure against electromagnetic
induction.
Finely twisted pair cables prevent electromagnetic
induction. Adding shields to the twisted pair cables pro-
vides protection against electrostatic induction.
Minimum Parallel Distance between the Intrinsically
Safe Circuit and Other Circuits (mm)
Voltage and
Current of Other
Circuits
Over 440V
440V or less
220V or less
110V or less
60V or less
Over 100A
2000
2000
2000
2000
2000
100A or less 50A or less
2000
600
600
600
500
2000
600
600
500
300
10A or less
2000
600
500
300
150
(4) When identifying intrinsically safe circuits by color, use
light blue terminal blocks and cables.
(5) When using two or more EB3L’s to set up one intrinsi-
cally safe circuit in the common wiring configuration,
interconnect two neutral terminals (N1 through N10) on
each EB3L between adjacent EB3L’s in parallel.
(6) Make sure that the power of the EB3L, pilot lights, and
other connected units are turned off before starting
inspection or replacement.
Note: For the details of wiring the intrinsically safe circuits, refer to a relevant
test guideline for explosion-proof electric equipment in each country.
Safety Precautions
• Do not use the EB3C Relay Barrier and EB3L Lamp Barrier for other than explosion
protection purposes.
• Read the user’s manual to make sure of correct operation before starting installation,
wiring, operation, maintenance, and inspection of the EB3C Relay Barrier and EB3L
Lamp Barrier.
Specifications and other descriptions in this catalog are subject to change without notice.
www.idec.com
IDEC CORPORATION (USA)
1175 Elko Drive, Sunnyvale, CA 94089-2209, USA
Tel: [phone] / (800) 262-IDEC (4332)
Fax: [phone]
E-mail: [e-mail]
IDEC CANADA LIMITED
Unit 22-151, Brunel Road Mississauga, Ontario,
L4Z 1X3, Canada
Tel: [phone], Toll Free: [phone]
Fax: [phone]
E-mail: [e-mail]
IDEC AUSTRALIA PTY. LTD.
2/3 Macro Court, Rowville, Victoria 3178, Australia
Tel: [phone], Toll Free: 1800-68-4332
Fax: [phone]
E-mail: [e-mail]
IDEC ELECTRONICS LIMITED
Unit 2, Beechwood, Chineham Business Park,
Basingstoke, Hampshire RG24 8WA, UK
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
7-31, Nishi-Miyahara 1-Chome, Yodogawa-ku, Osaka 532-8550, Japan
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC ELEKTROTECHNIK GmbH
Wendenstrasse 331, D-20537 Hamburg, Germany
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC (SHANGHAI) CORPORATION
Room 608-609, 6F, Gangtai Plaza, No. 700,
Yan'an East Road, Shanghai 200030, P.R.C.
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC (SHANGHAI) CORPORATION
Beijing Office
Unit 1002, No. 10 Kuntai Building, Zhaowai Dajie,
Zhao Yang District, Beijing, 100020, P.R.C.
Tel: [phone], Fax: [phone]
IDEC (SHENZHEN) CORPORATION
Unit AB-3B2, Tian Xiang Building, Tian’an Shuma Cheng,
Fu Tian District, Shenzen, Guang Dong 518040, P.R.C.
Tel: [phone], Fax: [phone]
IDEC IZUMI (H.K.) CO., LTD.
Unit 1505-07, DCH Commercial Centre No. 25,
Westlands Road, Quarry Bay, Hong Kong
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC TAIWAN CORPORATION
8F-1, No. 79, Hsin Tai Wu Road, Sec. 1,
Hsi-Chih, Taipei County, Taiwan
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
IDEC IZUMI ASIA PTE. LTD.
No. 31, Tannery Lane #05-01, Dragon Land
Building, Singapore 347788
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
Cat. No. EP1054-1 MARCH 2006 3ML PRINTED IN MALAYSIA