In-Cabinet Distributed I/O

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1797 FLEX Ex I/O

Specifications

Use in North American Hazardous Locations

FLEX Ex modules are rated for installation in Class I Division 1 & 2, Groups A-D hazardous areas. They are also rated to connect to field devices that are located in Class I, II, or III, Groups A-G hazardous areas.

If FLEX Ex components are to be installed in a Class II or III location in your application, you can mount them in a suitable, dust-proof enclosure with the appropriate connectors, glans, and seals. For example, a NEMA 9 enclosure may be appropriate. The FLEX Ex modules are rated to connect to devices in Class II or III locations.

FLEX Ex modules are rated for installation in North American Class I Zone 1 & 2, Groups IIC, IIB, & IIA hazardous areas. They are also rated to connect to field devices that are located in North American Class I Zone 0, 1, & 2, Groups IIC, IIB, & IIA hazardous areas.

As always, observe local code requirements when applying your FLEX Ex application.

Use in CENELEC Hazardous Locations

FLEX Ex modules are rated for installation in European Zones 1, 2, and 22. They are also rated to connect to field devices that are located in European Zones 0, 1, 2, 21, and 22 hazardous areas. The FLEX Ex power supplies (1797-PS1E and -PS2E2) are rated for use in Zones 1 and 22.

If FLEX Ex components are to be installed in a European Zone method dust or fiber location in your application, you must mount them in an approved, dust-proof enclosure with the appropriate connectors, glans, and seals. Pepperl+Fuchs have three cabinets that are approved for use with FLEX Ex components in Zone 22 applications: IVK2-ISRPI-V8LC; IVK2-ISRPI-V8HYW; and IVK2-ISRPI-V16LC. P+F has offices in Twinsburg, Ohio, USA, and Mannheim, Germany. See their website at http://www.pepperl-fuchs.com.

As always, observe local code requirements when applying your FLEX Ex application.

General Specifications

Enclosure Type Rating	IP20
Mounting Type	DIN-rail, Panel
Operating Temperature	-20…70 °C (-4…158 °F)
Nonoperating Temperature	-40…85 °C (-40…185 °F)
Relative Humidity	5…95% noncondensing
Operating Shock	15 g peak acceleration, 11 (±1) ms pulse width
1797-BIC, -CEC, -BCNR	30 g peak acceleration, 11 (±1) ms pulse width
Nonoperating Shock	15 g peak acceleration, 11 (±1) ms pulse width
1797-BIC, -CEC	30 g peak acceleration, 11 (±1) ms pulse width
1797-BCNR	50 g peak acceleration, 11 (±1) ms pulse width
Vibration	2 g at 10…500 Hz
1797-BIC, -CEC, -BCNR	5 g at 10…500 Hz per IEC 68-2-6
Conformal Coating / Noxious Gas Exposure⋆	Tested to severity level G3, ISA-S71.04-1985
⋆ Does not apply to 1797-BCNR.

Dimensions and Weights

Cat. No.	Dimensions (H x W x D), Approx.	Weight
I/O Modules	46 x 94 x 75 mm (1.8 x 3.7 x 2.95 in)	0.2 kg (0.4 lb)
1797-ACNR15	94 x 94 x 91 mm (3.7 x 3.7 x 3.58 in)	0.2 kg (0.4 lb)
1797-RPA
1797-RPFM		0.1 kg (0.3 lb)
1797-BCNR	70 x 100 x 90 mm (2.76 x 3.94 x 3.55 in)	0.2 kg (0.4 lb)
1797-BIC	87 x 94 x 75 mm (3.4 x 3.7 x 2.95 in)	0.2 kg (0.4 lb)
1797-CEC	80 x 55 x 69 mm (3.15 x 2.17 x 2.72 in)	0.1 kg (0.2 lb)
1797-PS1E	174 x 174 x 280 mm (6.9 x 6.9 x 11.0 in)	7.7 kg (17 lb)
1797-PS2E2
1797-PS1N	174 x 174 x 128 mm (6.9 x 6.9 x 5.04 in)	7.3 kg (16 lb)
1797-PS2N2
Terminal Bases	94 x 94 x 69 mm⋆  (3.7 x 3.7 x 2.7 in⋆ )	0.2 kg (0.5 lb)
Extender Cables	‡	0.1 kg (0.2 lb)
⋆ With module installed in base. ‡ 1794-CE1, 1797-CE1S: 0.3m (1 ft) cable; 1794-CE3, 1797-CE3S: 0.9m (3 ft) cable.