# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

IDEC EC2B Catalog

Summary

Designed for critical, high-risk industrial environments, these flameproof control boxes deliver exceptional safety with robust, corrosion-resistant stainless steel construction and an IP65 rating. Ideal for any facility subject to explosive gases, steam, or fine dust buildup, they maintain compliance across global standards including ATEX, IECEx, UL/c-UL, and Ex-CCC. The manual provides comprehensive technical specifications, certification details, and configuration options, helping users safely integrate reliable power control systems into the most challenging operational sites worldwide.

📄 Preview PAGE OF 30

Page 1 Text Content

EC2B Series Control Boxes (Flameproof & Increased Safety) lic ab le

lic ab le on tr ol ni

Complies with IECEx, ATEX, Ex-CCC, UL/c-UL and TIIS. Ideal for use in factories. • Corrosion resistant stainless steel enclosure. • Applicable in areas where explosive gases/steam exist including hydrogen and acetylene, and environments subject to dust (ATEX, IECEx, Ex-CCC). • Available with a variety of switches/pilot lights and enclo- sures. • Available for global applications Global: IECEx North America: UL/c-UL Europe: CE/ATEX China: Ex-CCC Japan: TIIS • Degree of protection: IP65 (IEC 60529), Type4X (UL)

Specifications Explosion protection specifications and Degree of protection IP65 (IEC60529), Type 4X (UL) certification number Housing Material Stainless steel (SUS304) Certification

Certification Explosion Protection

5Y7/1 (semi gloss) melamine baking (coating No.

thickness: 10 µm) TIIS Ex de IIC T6 See Page 24

Standard Coating *

1-column: Outside coating

Ex db eb IIC T6 Gb IECEx PTB

2-, 3-, 4-column: Inside and outside coating IECEx

Ex tb IIIC T80ºC Db (dust) 15.0032

Ex db eb IIC T6 Gb PTB 08 ATEX

(with pilot light or ET2A-8PE screw terminal ATEX

Rated Insulation Ex tb IIIC T80ºC Db (dust)

block: 500V)

Voltage Class I, Zone 1

Meter AC input: 300V

AEx d e IIC T6 Gb

Meter DC input: 150V UL

Class I Div 2, Groups A, B, C

Insulation Resistance 100 MΩ minimum (500V DC megger) and D Operating Temperature −20 to +50°C (no freezing) Class I, Zone 1, Ex de IIC T6 Gb E347230

Operating Humidity 45 to 85% (no condensation) Class I Div 2, Groups A, B, C

Without pilot light

and D

Altitude 2000m maximum

c-UL Class I, Zone 1, Ex de IIB T6 Gb

Special coating, buffing (#400), and special color are possible. With pilot light Class I, Div 2, Groups C and D Contact IDEC for details. Ex de IIC T6 Gb

Ex-CCC

Ex t D A21 IP65 T80ºC (dust)

IECEx/ATEX/Ex-CCC, UL/c-UL/ IECEx/ATEx, and TIIS Comparison

IECEx/ATEX/Ex-CCC certified UL/c-UL, IECEx/ATEX certified TIIS certified

Part No. EC2B- -GL EC2B- -U EC2B-

All enclosures except for 6 Control

Applicable Enclosure All enclosures All enclosures

Units x 4 Column

Wall Mount

Mounting Style Wall Mount Wall Mount

Pole Mount

Pilot Light Yes Yes (*1) Yes Pushbutton Yes (*2) Yes (*2) Yes Emergency Pushbutton Yes Yes Yes Selector Switch Yes Yes Yes Key Selector Switch Yes Yes Yes Meter Yes Yes Yes (*3) Buzzer Yes Variable Resistor Yes

Pipe Parallel Thread

Metric Thread (standard) NPT Thread (standard)

Reducer Screw (standard)

NPT Thread/Pipe Parallel Thread Metric Thread Metric Thread/NPT Thread

Cable Lead-in Fitting — (*4) — (*4) Yes (HPN) Lead-in Port Plug — (*4) — (*4) Yes (GBE) Degree of Protection IP65 IP65, TYPE4X (UL) IP65 Grounding Terminal Screw Material Stainless Steel Stainless Steel Brass Stranded Wire (mm2) 1.25 to 2.5 1.5 to 2.5 1.25 to 2.5

Solid Wire (mm2) 1.2 to 1.6 1.2 to 1.6 1.2 to 1.6

Solid/Stranded Wire (AWG) 16-14 16-14 16-14 *1: c-UL explosion protection is different when pilot light is installed. *2: Part no. is different from TIIS certified model. *3: Part no. of TIIS certified meter is different from the meter certified by other organizations. *4: Use fittings and plugs commercially available compliant to the corresponding standards.

Page Summary Contents For IDEC EC2B Catalog

Page 1 EC2B Series Control Boxes (Flameproof & Increased Safety) lic ab le lic ab le on tr ol ni Complies with IECEx, ATEX, Ex-CCC, UL/c-UL and TIIS. Ideal for use in factories. • Corrosion resistant sta...
Page 2 EC2B Flameproof and Increased Safety Control Boxes co lu co lu co lu Control Boxes (TIIS, IECEx, ATEX, Ex-CCC, UL/c-UL) Control Box 1, 2 control units 3 control units 4 control units 5 control units 6...
Page 3 EC2B Flameproof and Increased Safety Control Boxes Standard Part No. Development (reference) The chart below describes the configuration of standard model. See next page for standard model. For custom...
Page 4 EC2B Flameproof and Increased Safety Control Boxes Control Boxes 1 Control Unit × 1 Column (without wiring) (standard models) Pushbuttons Shape/Symbol Mounted Control Units Flush momentary Flush momen...
Page 5 EC2B Flameproof and Increased Safety Control Boxes 1 Control Unit × 1 Column (without wiring) (standard models) Selector Switches Key Selector Switches Shape/Symbol Mounted Control Units Shape/Symbol ...
Page 6 EC2B Flameproof and Increased Safety Control Boxes 2 Control Units × 1 Column (without wiring) (standard models) Combination Pilot Light/Selector Switch Shape/Symbol Mounted Control Units 100/110V AC ...
Page 7 EC2B Flameproof and Increased Safety Control Boxes 4 Control Units × 1 Column (without wiring) (standard models) 2 pilot lights/2 pushbuttons Shape/Symbol Mounted Control Units 100/110V AC, Illuminati...
Page 8 EC2B Flameproof and Increased Safety Control Boxes Cable Lead-in Fittings Wall Mount Flameproof Packing Type Cable Lead-in Fittings Reducers (for TIIS certified model only) Reducers installed at the b...
Page 9 EC2B Flameproof and Increased Safety Control Boxes Terminal Blocks A terminal block is not supplied with the standard control The number of terminal blocks, poles, and the installation boxes (without ...
Page 10 EC2B Flameproof and Increased Safety Control Boxes Dimensions 1, 2 Control Units × 1 Column * Pole mount: TIIS certified model only Shape Dimensions (mm) Pole Mount* 1 control unit Wall Mount 4-ø7 (mo...
Page 11 EC2B Flameproof and Increased Safety Control Boxes 2, 3, 4, 5 control units × 2 Columns * Pole mount: TIIS certified model only 5× Shape Dimensions (mm) Pole Mount* Hinge Wall Mount Mounting tab 4-ø10...
Page 12 EC2B Flameproof and Increased Safety Control Boxes Control Units Applicable Standards Switch Specifications Applicable Contact Resistance 50mΩ maximum (initial value) Control Units Mark Certification ...
Page 13 EC2B Flameproof and Increased Safety Control Boxes Buzzer Specifications (EC9F-Z) Meter Specifications (EU2B-YM/EC9F-M) Rated Insulation Voltage (Ui) 250V Accuracy Class 2.5 (JIS) Rated Operation Volt...
Page 14 EC2B Flameproof and Increased Safety Control Boxes Control Units Pilot Lights Part No. Illumination Color Weight Shape Symbol Contact Rating F terminal style: Code * (approx.)C terminal style: exposed...
Page 15 EC2B Flameproof and Increased Safety Control Boxes Selector Switches NC contact: direct opening action (IEC 60947−5−1 Annex K) Operator Contact Block Part No. No. of Position Weight Shape Symbol Posi-...
Page 16 EC2B Flameproof and Increased Safety Control Boxes Variable Resistors (for TIIS certified model only) (Cannot be installed on 1 to 5 units × 1 column boxes.) Insulation Weight Shape Symbol Resistance ...
Page 17 EC2B Flameproof and Increased Safety Control Boxes Available Control Units Pilot Lights Part No. Illumination Color Input Rated Voltage Finger-safe Screw Terminal Code *Exposed Screw Terminal 100/110V...
Page 18 EC2B Flameproof and Increased Safety Control Boxes 0° -p os iti on o. f P os iti on 0° -p os iti on /6 0° -p os iti on o. f P os iti on Selector Switches (2-position) Operator Part No. Contact Block P...
Page 19 EC2B Flameproof and Increased Safety Control Boxes 3- os iti on o. f P os iti on Selector Switches (3-position) Contact Operator Part No. Block Position Selector Switch Key Selector Switch Maintained ...
Page 20 EC2B Flameproof and Increased Safety Control Boxes Accessories Plate Lock Padlock Cover Shape Part No. Dimensions (mm) Remarks • Used for the following purposes. EU2B-YB2 extended pushbutton: to maint...
Page 21 EC2B Flameproof and Increased Safety Control Boxes Pushbutton Rubber Boots For use with Rubber boot on Shape Part No. Button Type Remarks nameplate pushbutton EU9Z-DB1 Flush No Material: Silicone rubb...
Page 22 EC2B Flameproof and Increased Safety Control Boxes Nameplates Control Unit Nameplates Shape Part No. Dimensions (mm) Remarks Marking Plate • Used for pilot light, pushbutton, selec- tor switch, and ke...
Page 23 EC2B Flameproof and Increased Safety Control Boxes TIIS Certified Models Control Unit No. of Mountable Control Units Box No. of Control Unit TIIS Type Test Configura- Size PB ES SS BZ VR BP Units Term...
Page 24 EC2B Flameproof and Increased Safety Control Boxes Safety Precautions • Use explosion-proof electrical equipment that are ap- • Do not open the lid of the EC2B control box when it is plicable for use ...
Page 25 EC2B Flameproof and Increased Safety Control Boxes Operating Instructions Limitation of the Operating Current 2. See the table below for the allowable operating current when applying current evenly to...
Page 26 EC2B Flameproof and Increased Safety Control Boxes 6. ax 6. ax 8. ax 8. 3. ax in 3. in ø4 ø4 .2 .2 in in Operating Instructions Warning ax 6. ax 6. ax ø4 .2 Wiring Incorrect wiring may cause fire haza...
Page 27 EC2B Flameproof and Increased Safety Control Boxes Operating Instructions Removing and Installing the Contact Unit/ Removing the Contact Block Lamp Unit To remove the contact block, insert a flat scre...
Page 28 EC2B Flameproof and Increased Safety Control Boxes EC2B 1-column Control Box Specication Sheet TO: IDEC Corporation No. of Control Box Company: TEL: Contact Person: FAX: Select the required specifica...
Page 29 EC2B Flameproof and Increased Safety Control Boxes ( / ) EC2B TO: IDEC Corporation No. of Control Box Company: TEL: Contact Person: FAX: Select the required specifications by checking the checkboxes (...
Page 30 Ordering Terms and Conditions Thank you for using IDEC Products. By purchasing products listed in our catalogs, datasheets, and the like (hereinafter referred to as “Catalogs”) you agree to be bound b...

Manual Details

Brand IDEC
Pages 30
File Size 1.71 MB
Published June 05, 2026
67 views

Enter the captcha to get the download link:

captcha

Frequently Asked Questions

What is the IP rating for the control boxes?

They have a degree of protection of IP65 (IEC 60529) and Type4X (UL).

What types of environments are these boxes suitable for?

They are suitable for areas with explosive gases/steam, including hydrogen and acetylene, as well as dusty environments.

What is the standard material for the enclosure?

The housing material is corrosion resistant Stainless steel (SUS304).

Are they available to customize according to specific needs?

Yes, special coatings, buffing (#400), and colors are possible; also contact IDEC for custom order models.