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TYPICALLY INTRINSICALLY SAFE APPLICATION

Status Instruments intrinsically safe products

Please contact the Status sales office or browse the Status web page www.status.co.uk for the latest product information.

Documentation

All approved parts are supplied complete with Status Instruments Ltd certificate of conformance stating that the product is manufactured to approved drawings and giving the classification and Certifying Body certificate number.

North American classifications

The North American protection concept differs from the European concept, therefore separate approvals apply for products sold for use within Northern America. Certain Status products are approved by FM for use within Northern America. The tables listed below are a guide to the differences between concepts.

European & IEC

North American

Zone 0 (gases)

Class 1 Division 1 (gases)

Zone 20 (dust)

Class 2 Division 1 (dust)

Zone 1 (gases)

Class 1 Division 1 (gases)

Zone 21 (dust)

Class 2 Division 1 (dust)

Zone 2 (gases)

Class 1 Division 2 (gases)

Zone 22 (dust)

Class 2 Division 2 (dust)

Class 3 Division 3 (fibre)

Class 3 Division 2 (fibre)

Gas & Groups

Typical Gas/Material	European/I.E.C Gas Group	North American Gas Group
Methane	I	-
Acetylene	IIC	A
Hydrogen	IIC	B
Ethylene	IIB	C
Propane	IIA	D
Metal Dust	-	E
Coal Dust	-	F
Grain Dust	-	G

Temperature classifications

Temperature Classifications

European/I.E.C

North American

Max. Surface Temp.

450 °C

T2A

T2B

T2C

T2D

300 °C

280 °C

260 °C

230 °C

215 °C

T3A

T3B

T3C

200 °C

180 °C

165 °C

160 °C

T4A

135 °C

120 °C

100 °C

85 °C

All Intrinsically Safe Apparatus must be installed with the correct level of ingress Protection as specified on the apparatus instruction manual.

Ingress protection

2 digits are used to denote the level of ingress protection that a piece of apparatus enjoys.

For example IP 01 would give no protection against solids but would give protection against vertically falling drops of water.

	Solids		Liquids
0	No Protection	0	No Protection
1	Protected against solid objects up to 50 mm, e.g. hands.	1	Protected against vertically falling drops of water.
2	Protected against solid objects up to 12 mm, e.g. fingers.	2	Protected against water spray up to 15 degrees from vertical.
3	Protected against solid objects up to 2.5 mm, e.g. tools.	3	Protected against water spray up to 60 degrees from vertical.
4	Protected against solid objects over 1 mm, e.g. wires.	4	Protected against water spray from all directions.
5	Protected against dusts. (No harmful deposits)	5	Protected against water jets from all directions.
6	Totally protected against dust.	6	Protected against strong water jets from all directions e.g. offshore.
		7	Protected against immersion between 15 cm and 1 m in depth
		8	Protected against long immersion under pressure.

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