IDEC CORPORATION EB3L-N Relay Barrier Instruction Manual

: June 2, 2024
: IDEC CORPORATION

Table of Contents

EB3L-N Relay Barrier
Operating rating
References
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Installation Manual

EB3L-N Relay Barrier

Type EB3L-N Relay Barrier (alias Lamp Barrier)
For Intrinsically Safe System [Ex ia Ga]IIC, [Ex ia Da]IIIC
Certificate No. IECEx DEK 21.0070
Draw. No. B-2272-2 (0)
Rev.F
JULY. 22, 2022

When installing an IDEC Type EB3L-N Relay Barrier (thereafter, called Barrier), make sure it conforms to the following drawings and descriptions as well as all applicable requirements.
IEC Standard IEC 60079-0:2017(Ed.7), IEC 60079-11:2011(Ed.6), IEC 60079-25:2010(Ed.2), IEC 60079-14:2013(Ed.5)
All intrinsically safe systems must have “EB3L-N” in the part number. Barrier must be located in a safe area (non-hazardous area).
The intrinsically safe apparatus, such as the Contact certificated, approved or considered to be a “simple apparatus” such as the Switch specified by standard, may be located in the hazardous area.

Servicing – Replacement and Repairs : Inspection and replacement of Barrier shall not be made until power is disconnected and shall not be connected again until all replacement Barrier are properly re-assembled. All electrical components, including the interconnecting wiring, shall be kept in safe condition. Defective Barrier should be returned to the factory for repair.
Warning ! Substitution of components or unauthorized repair may impair intrinsic safety of apparatus.
To maintain intrinsic safety, the Signal output terminal (Pn-Nn) may only be connected to intrinsically safe circuits where both the wiring and the connected equipment maintain 500 V isolation to the hazardous area earthing/bonding connections.
Mounting : All bolts, nuts, screws, and other means of fastening, including the unused wiring screws, shall be fastened in place, properly tightened and secured. Mount Barrier on a 35mm track or directly mount on a panel surface using screws.
Certified Barrier: Type EB3L-abcdeN “EB3L-…N”= Series type
a = Output S: for Supper LED b = channels 01, 02, 03, 05, 06, 08, 08C, 10, 16C(C: common wiring only)
c = Signal type K: Sink, S: Source d = Power supply A: 100~240Vac, D: 24Vdc e = connection Blank: Terminal, -C: Connector
Rating and Parameters of I.S.
Typical Installation: Install Barrier must be according to the above Ratings and Parameters of I.S. and descriptions.To avoid electrical shock, install Barrier in a tool-accessible enclosure. Layout and wiring must be done to prevent the inductive or capacitive induction to the intrinsically safe circuit. For example, separate intrinsically safe circuits from non-intrinsically safe circuits, by a minimum space of 50mm or using a full height metal separator. If color-coding is required use for the intrinsic safe components and terminals, use only cables and terminals with light blue markings. Interconnection between the Barriers to setting Common Wiring: connect two independent wires in parallel at each two “ N “ terminals between adjacent the Barrier inside the panel. Maintain at least 3 mm clearance between the external connection terminals and the grounded metal part. Maintain at least 3 mm clearance between the external connection terminals and the grounded metal part.
Dielectric Strength: Between intrinsically safe circuit and non-intrinsically safe circuit 1526.4V AC.
Example of connections: The marks indicate the samples of single intrinsic safe circuits, and marks indicate IS apparatus.