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

MEDC pb

MEDC PB 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 point is suitable for use onshore or offshore where light weight combined with a high level of corrosion resistance is required. The unit is now supplied with a lift flap that latches firmly in place.

➡ View the complete range of MEDC call points.

MEDC PB Call Point

ATEX Call Points Zone 1 & Zone 2

Features

Call Point Order Code MEDC PB.

Glass reinforced polyester enclosure – light, strong and not subject to corrosion.
The call point is now supplied with a lift flap that latches firmly in place.
4 basic versions available
(1) Explosion protected Exe (ATEX, TR CU, Chinese CQST, INMETRO)
(2) Explosion protected Exi (ATEX, IECEx, TR CU, CQST, CSA)
(3) Weatherproof & Dust-tight/UL ordinary locations.
(4) Explosion protected:

Class I, Div. 2,
Groups A-D
Class II, Div. 2,
Groups F & G
Class I, Zone 2

SIL2 certified
DNV certified
In line and end of line resistors and/or zener diodes can be fitted.
Variety of colours available.
Up to 9 terminals available.
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)

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 Classification	Definition of Zone or Division	North American Classification
Zone 0 (gases)	A hazardous area in which an explosive mixture is continuously present or present for long periods	Class 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 operation	Class 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 time	Class 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

Eaton MEDC PB – Dimensions

Eaton MEDC PB – Standard Wiring Configuration

MEDC PB Hazardous Area Manual Call Point

Technical Specification

Hazardous Area Certifications
ATEX Ex de	Cert. no. BAS02ATEX2105X. ATEX Approved Ex II 2GD EN60079-0, EN60079-1, EN60079-7, EN60079-31 Ex de IIC T6 Gb, Ex tb IIIC T85ºC Db (switch only) Ex de mb IIC T6 Gb, Ex tb IIIC T85ºC Db (with LED) Ex de mb IIC T4 Gb, Ex tb IIIC T135ºC Db (with resistors & diodes)
ATEX Ex ia	Cert no. Baseefa 03ATEX0084X. ATEX Approved Ex II 1GD Certified to: EN60079-0, EN60079-11 Ex ia IIC T4 Ga , Ex ia IIIC T135ºC Da
IECEx Ex ia	Cert. no. IECEx BAS 12.0093X Certified to: IEC 60079-0, IEC 60079-11 Ex ia IIC T4 Ga, Ex ia IIIC T135ºC Da
UL	Listing no. E186629 UL listed to Class 1, Div 2. Groups A,B,C & D UL listed for Ordinary Locations. Listing no. S8117
CSA	Cert. no. 79120-3. Class 1 groups A,B,C & D
TR CU Ex ed	1Ex 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 l
TR CU Ex ia	0Ex 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 d	Ex de IIC T6 Gb (Switch only), Ex de mb IIC T4 Gb (other versions)
CQST Exd	Ex de IIC T6 (switch only), Ex de mb IIC T4 (other versions)
CQST Exia	Exia IIC T4
Type Approvals	American Bureau of Shipping type approval (ABS) PBI only DNV (IEC 60945)
SIL	SIL2 Certification to IEC61508. Cert no. 20151118-4786827453
Specifications
Material	Anti-static UV resistant glass reinforced polyester
Finish	Red painted finish as standard or to customer specification
Voltage	Up to 250Vac. Up to 50Vdc (model dependent)
Weight	1.2 kg. (Varies with models and entries)
Ingress Protection	IP66 & IP67
Entries	Up to 4 entries, M16 or M20 top and bottom (1/2” NPT available on UL version)
Weight
Ingress protection
Entries	Up to 4 x M20 or M25 ISO Ex d/Ex ia Up to 4 x 1/2” or 3/4” NPT UL
Terminals	7 x 2.5sqmm – standard 9 x 2.5sqmm optional – up to 60V only
Resistor	Various configurations available on versions up to 24V and all ‘IS’ versions. (Minimum Resistor value 100ΩPBE, 470ΩPBI)
Earth continuity	Internal and external earth continuity is provided with an optional earth plate
LED indication	A 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
Labelling	Duty label – worded to customers requirements. Riveted on Tag label – worded to customers requirements. Screwed on
Switch ratings (1 or 2 changeover switches fitted)	Switch only 30Vdc 5A (resistive) or 3A (inductive) 30-50Vdc 1A (resistive or inductive) 250Vac 5A (resistive or inductive) LED 24Vdc 0.05A Resistor(s) 24Vdc 0.05A

MEDC PB – 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.

MEDC PB Call Points – Order Requirements

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

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

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

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