MEDC BG Call Point | ATEX IECEx Explosion Proof & Hazardous Area Call Points

ATEX Call Points Zone 1 & Zone 2 Safe Break Glass Hazardous Area Ex ed, Ex ia – Eaton MEDC BG Hazardous Area Manual Call Point

MEDC BG Call Point | ATEX IECEx Explosion Proof & Hazardous Area Call Points

MEDC BG

MEDC SM87BG Call Point

MEDC BG are ATEX call points designed for use in the most arduous environmental conditions. The hazardous area call points, manufactured by MEDC, are manually operated fire alarms that are both simple to install and maintain in explosive atmospheres in onshore or offshore locations in accordance with the ATEX & IECEx certification and explosion protection levels.

The GRP enclosure of the hazardous area call points are suitable for use offshore or onshore where light weight combined with a high level of corrosion resistance is required.

The break glass of the ATEX call point is covered by a membrane which protects the operator from glass fragments meaning that no hammer is required to activate the unit.

A plastic ‘break glass’ or deformable operating element is available to replace the break glass. Once the flexible element is pressed it will bend but will not break.

The hazardous area call point is reset by repositioning the element.

The Eaton MEDC BG range of Zone 1 & Zone 2 call point caters for numerous options such as variety of colours, LED indication, earth continuity, double switch, etc

➡ View the complete range of MEDC call points.

MEDC BG Call Point

MEDC BG Call Point

ATEX Call Points Zone 1 & Zone 2

Features

Call Point Order Code MEDC BG.

  • Glass Reinforced Polyester enclosure – light, strong and not subject to corrosion.
  • 4 basic versions available
    • (1) Explosion protected Exe (ATEX,TR CU, Chinese [CQST], Brazilian [Inmetro])
    • (2) Explosion protected Exi (ATEX, IECEx, TR CU, Chinese [CQST], Brazilian [Inmetro] or CSA),
    • (3) Weatherproof & Dust-tight/UL ordinary locations.
    • (4) Explosion protected:
  • Class I, Div. 2,
  • Groups A-D
  • Class II, Div. 2,
  • Class I, Zone 2
  • In line and end of line resistors and/or zener diodes can be fitted.
  • ATEX call point available in a variety of colours.
  • Up to 9 terminals available for the hazardous area call point
  • Lift flap available for extra protection against inadvertent operation.
  • Optional LED – this indicates that the unit has been operated – useful for testing purposes.
  • Earth continuity option for metal glands.
  • 1 or 2 changeover switches.
  • Captive cover screws.
ATEX Call Point | Ex II 1G (Ex ia) or Ex II 2GD (Ex d)

ATEX Call Point | Ex II 1G (Ex ia) or Ex II 2GD (Ex d)


Hazardous Area Guide

♦ Definition : Potentially explosive atmospheres exist where there is a risk of explosion due to mixtures of gas/air, vapour/air, dust/air or other flammable combinations. Where electrical equipment has to be used in these areas, it must be so designed and constructed such that it does not create sources of ignition capable of igniting these mixtures.
♦ Area Classification : Process plants are divided into Zones (European and IEC method) or Divisions (North American method) according to the likelihood of a potentially explosive atmosphere being present. Note: North American legislation now allows Zones to be used to classify areas, where this practice is used it follows the IEC Zone method.

➡ For further information about see Hazardous Area Zones and T-Class Temperature Ratings.

European ATEX & IEC ClassificationDefinition of Zone or DivisionNorth American Classification
Zone 0 (gases)A hazardous area in which an explosive mixture is continuously present or present for long periodsClass I Division I (gases)
Zone 20 (dusts)Class II Division 1 (dusts)
Zone 1 (gases)A hazardous area in which an explosive mixture is likely to occur in normal operationClass I Division 1 (gases)
Zone 21 (dusts)Class II Division 1 (dusts)
Zone 2 (gases)A hazardous area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short timeClass I Division 2 (gases)
Class II Division 2 (dusts)
Zone 22 (dusts)Class III Division 1 (fibres)
Class III Division 2 (fibres)

 


 

IECEx Call Point | Gb, Db Equipment Protection Level

IECEx Call Point | Gb, Db Equipment Protection Level

Eaton MEDC BG - Dimensions

Eaton MEDC BG – Dimensions

Eaton MEDC BG - Standard Wiring Configuration

Eaton MEDC BG – Standard Wiring Configuration

MEDC BG Hazardous Area Manual Call Point

Technical Specification

Hazardous Area Certifications
ATEX Ex dCert. no. BAS02ATEX2105X. ATEX Approved Ex II 2GD
Certified to: EN60079-0, EN60079-1, EN60079-7, EN60079-31
Ex d e IIC T6 Gb, Ex tb IIIC T85°C Db (switch only)
Ex d e mb IIC T6 Gb, Ex tb IIIC T85°C Db (with LED)
Ex d e mb IIC T4 Gb, Ex tb IIIC T135°C Db (with resistors & diodes)
ATEX Ex iaCert no. Baseefa 03ATEX0084X. ATEX approved Ex II 1GD
Certified to: EN60079-0, EN60079-11
Ex ia IIC T4 Ga, Ex ia IIIC T135°C Da
IECEx Ex iaCert. no. IECEx BAS 12.0093X
Certified to: IEC 60079-0, IEC 60079-11
Ex ia IIC T4 Ga, Ex ia IIIC T135°C Da
ULListing no. E186629
UL listed to Class 1, Div 2. Groups A – D
UL listed for ordinary locations. Listing no. S8117
TR CU Ex ed1Ex d e IIC T6 Gb, Ex tb IIIC T85°C Db (switch only)
1Ex d e mb IIC T6 Gb X, Ex tb IIIC T85°C Db X (with LED)
1Ex d e mb IIC T4 Gb X, Ex tb IIIC T135°C Db X (with resistors & diodes)
Russian Fire approved (Must be red and have burning house duty label)
TR CU Ex ia0Ex ia IIC T4 Ga X, Ex ia IIIC T135°C Da
Russian Fire approved (Must be red and have burning house duty label)
INMETRO Ex deEx d e IIC T6 Gb, Ex tb IIIC T85°C Db (switch only)
Ex d e mb IIC T6 Gb, Ex tb IIIC T85°C Db (with LED)
Ex d e mb IIC T4 Gb, Ex tb IIIC T135°C Db (with resistors & diodes)
CQST Ex deEx d e IIC T6 Gb (switch only)
Ex d e mb IIC T4 Gb (other versions)
CQST Ex iaEx ia IIC T4 Ga
CCCFChinese Compulsory Certification for Fire systems (CCCF). Ex de only
SILSIL 2 certified to IEC 61508. Cert no. Sira 11013
Type approvalsAmerican Bureau of Shipping type approval (ABS) Ex de only
Specifications
MaterialAnti static UV resistant glass reinforced polyester
FinishRed painted finish as standard or to customer specification
VoltageUp to 250Vac. Up to 50Vdc (model dependent)
Weight1.2 kg. (varies with models and entries)
Ingress protectionIP66 and IP67
Cable entriesUp to 4 entries, M16 or M20 top and bottom (1/2” NPT available on UL
version)
Terminals7 x 2.5sqmm
– non UL standard
9 x 2.5sqmm
– optional (up to 50V only)
6 x 12AWG – BGUL only
Resistors valuesVarious configurations available on versions up to 24V and all ‘IS’ versions (minimum
resistor value 100ΩBGE, 470ΩBGI)
Earth continuityInternal and external earth continuity is provided with an optional
earth plate
LED indicationA high intensity red LED can be fitted as an optional extra to indicate
operation on versions up to 24V and all ‘IS’ versions
As standard the LED is not provided with over current protection. The forward current
(If) should be limited to 20mA
LabellingBG glass label – reads either (1) Fire Break glass – press here
(2) Break glass – press here
(3) Worded to customer requirements
(7) Dot and arrows – no textDuty label – either worded to customer requirements (riveted on) or
(8) Burning house logoTag label – worded to customer requirements (screwed on)
Switch ratingsSwitch only 30Vdc 5A (resistive) or 3A (inductive)
30-50Vdc 1A (resistive or inductive)
250Vac 5A (resistive or inductive)LED 24Vdc 0.05AResistor(s) 24Vdc 0.05A

Eaton MEDC BG – Ordering Requirements

The following code is designed to help in selection of the correct MEDC hazardous area call point with ATEX approval and certification. Build up the part number of the call point by inserting the code for each component into the appropriate box.

Note: For CCCF units use the following code: BGEQF4B6B74DSA_9R. Add a code in the blank space only if resistors are required. The possible codes are C, D or S as per the options box below

Eaton MEDC BG - Ordering Information

Eaton MEDC BG Call Points – Ordering Information

ATEX Call Points

MEDC BG Call Points are certified to International Standards for Explosion Proof Protection Levels and Hazardous Area Classifications

How to Order | MEDC BG

BG Break Glass Manual Alarm Call Points

The following list of product variants and extras are available to order with MEDC BG type call point for safe us in hazardous areas:

BGW (Weatherproof only)

BGEB (Ex ed)

BGIB (Ex ia)

BGUL – Includes 2 metric/NPT nickel plated adaptors (UL listed)

BGUW – Includes 2 metric/NPT nickel plated adaptors (ordinary locations)

Extras

2.5mm² terminals (7 as standard, 6 on ul version, up to 9 maximum) price per extra terminal

Break glass hammer

Ex e & UL double pole switch

Ex ia, UW & weatherproof only double changeover switch

Ex i, UW & weatherproof only gold contact single changeover switch

Ex i, UW & weatherproof only gold contact double changeover switch

Internal earth plate & stud

LED – Ex e, Ex i & UL versions

LED – weatherproof only & BGUW versions

Lift flap stainless steel

Photo luminescent backplate

Resistor/diode – ex e (up to 2 off)

Resistor/diode – weatherproof, Ex ia & UL versions (up to 2 off)

 

Hazardous Area Accessories

MEDC TR CU, CQST, Inmetro and IECEx certified products are same price as their ATEX equivalents – contact Thorne & Derrick Sales Office for price and availability for MEDC BG2.

The following list of call point accessories are available to order for use with MEDC BG2:

Additional entries Ex d or Ex e per entry

Label (tag/duty) (special script)

Label (tag/duty) (standard script)

GRP paint finish: special (any code on the data sheets)

GRP paint finish: standard (red painted PB, BG, BG2, BG3 exempt from this)

GRP paint finish: striped

M20 or M25 Ex de IIC stainless steel plug

M20 or M25 Ex de IIC brass plug

M20 or M25 Ex de IIC nylon plug

MEDC

MEDC have developed ATEX & IECEx call points designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable atmospheres both onshore and offshore – since 1975 MEDC have been designers and manufacturers of Explosion Proof alarm, signal, control and communications equipment.

Thorne & Derrick International, based in the UK, distribute the extensive range of Eaton MEDC ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.

Explosion Proof & Hazardous Area Call Points | ATEX IECEx | Zone 1 & Zone 2

Explosion Proof & Hazardous Area Call Points | ATEX IECEx | Zone 1 & Zone 2

Thorne & Derrick International, based in the UK, are the leading stockists and suppliers of Call Points for hazardous area and explosive atmosphere applications from market-leading brands including the MEDC range from the Crouse Hinds series of Signalling & Alarms

MEDC is a globally renowned manufacturer of call points and hazardous area communication systems – Thorne & Derrick International, based in the UK, are the leading stockists and suppliers of Call Points for hazardous area and explosive atmosphere applications from market-leading brands including the MEDC range from the Crouse Hinds series of Signalling & Alarms