AS-Interface Components

EB3L Lamp Barrier

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)

(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.

Voltage and

Current of Other

Circuits

Over 100A

100A or less

50A or less

10A or less

Over 440V

2000

2000

2000

2000

440V or less

2000

600

600

600

220V or less

2000

600

600

500

110V or less

2000

600

500

300

60V or less

2000

500

300

150

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.

Precautions for Operation

IDEC CORPORATION (USA)

1175 Elko Drive, Sunnyvale, CA 94089-2209, USA

Tel: +1-408-747-0550 / (800) 262-IDEC (4332)

Fax: +1-408-744-9055 / (800) 635-6246

E-mail: opencontact@idec.com

IDEC CANADA LIMITED

Unit 22-151, Brunel Road Mississauga, Ontario,

L4Z 1X3, Canada

Tel: +1-905-890-8561, Toll Free: (888) 317-4332

Fax: +1-905-890-8562

E-mail: sales@ca.idec.com

IDEC AUSTRALIA PTY. LTD.

2/3 Macro Court, Rowville, Victoria 3178, Australia

Tel: +61-3-9763-3244, Toll Free: 1800-68-4332

Fax: +61-3-9763-3255

E-mail: sales@au.idec.com

IDEC ELECTRONICS LIMITED

Unit 2, Beechwood, Chineham Business Park,

Basingstoke, Hampshire RG24 8WA, UK

Tel: +44-1256-321000, Fax: +44-1256-327755

E-mail: sales@uk.idec.com

7-31, Nishi-Miyahara 1-Chome, Yodogawa-ku, Osaka 532-8550, Japan

Tel: +81-6-6398-2571, Fax: +81-6-6392-9731

E-mail: products@idec.co.jp

Specifications and other descriptions in this catalog are subject to change without notice.

Cat. No. EP1054-1 MARCH 2006 3ML PRINTED IN MALAYSIA

IDEC ELEKTROTECHNIK GmbH

Wendenstrasse 331, D-20537 Hamburg, Germany

Tel: +49-40-25 30 54 10, Fax: +49-40-25 30 54 24

E-mail: service@idec.de

IDEC (SHANGHAI) CORPORATION

Room 608-609, 6F, Gangtai Plaza, No. 700,

Yan'an East Road, Shanghai 200030, P.R.C.

Tel: +86-21-5353-1000, Fax: +86-21-5353-1263

E-mail: idec@cn.idec.com

IDEC (SHANGHAI) CORPORATION

Beijing Office

Unit 1002, No. 10 Kuntai Building, Zhaowai Dajie,

Zhao Yang District, Beijing, 100020, P.R.C.

Tel: +86-10-6599-5541, Fax: +86-10-6599-5540

IDEC (SHENZHEN) CORPORATION

Unit AB-3B2, Tian Xiang Building, Tian’an Shuma Cheng,

Fu Tian District, Shenzen, Guang Dong 518040, P.R.C.

Tel: +86-755-8356-2977, Fax: +86-755-8536-2944

IDEC IZUMI (H.K.) CO., LTD.

Unit 1505-07, DCH Commercial Centre No. 25,

Westlands Road, Quarry Bay, Hong Kong

Tel: +852-2803-8989, Fax: +852-2565-0171

E-mail: info@hk.idec.com

IDEC TAIWAN CORPORATION

8F-1, No. 79, Hsin Tai Wu Road, Sec. 1,

Hsi-Chih, Taipei County, Taiwan

Tel: +886-2-2698-3929, Fax: +866-2-2698-3931

E-mail: service@idectwn.com.tw

IDEC IZUMI ASIA PTE. LTD.

No. 31, Tannery Lane #05-01, Dragon Land

Building, Singapore 347788

Tel: +65-6746-1155, Fax: +65-6844-5995

E-mail: info@sg.idec.com

www.idec.com

EB3C-3L catalog Page 20 Monday, February 13, 2006 1:44 PM