Wago 750 Series Catalog Page

Digital Input; NAMUR; Ex i

Volume 3 Section 5.9 | I/O System ‒ 750 and 753 Series; Intrinsically Safe Modules Ex i

3 ms

DI 1

24 V

A

+

0 V

U

V

Figure: 750-435

Item Description 1-Channel Digital Input; NAMUR;

Intrinsically safe

A

+

2-

Channel Digital Input; NAMUR;

Intrinsically safe

3 ms

DI 1 DI 2

24 V

0 V

U

1U

V

2

V

Item No. 750-435 750-438
Order Text 1DI; NAMUR; Ex i 2DI; NAMUR; Ex i

Technical Data

Number of digital inputs 1 2
Signal type NAMUR NAMUR
Sensor connection 2-wire 2-wire
Input characteristic High-side switching High-side switching
Input lter (digital) 3 ms 3 ms
Open-circuit voltage 8.2VDC 8.2VDC
Diagnostics Short circuit; wire break -/­Supply voltage (sensor) 8.2VDC; short-circuit-protected; isolated chan

nels

Supply voltage (eld) 24 VDC (Ex i power supply: U

power jumper contacts (power supply via blade

= max. 27.3 V); via

O

contact; transmission via spring contact)

Current consumption, eld supply (module with

13 mA 16 mA

8.2VDC; shor

24 VDC (Ex i power supply: UO = max. 27.3 V); via

power jumper contacts (power supply via blade

contact; transmission via spring contact)

t-circuit-protected; isolated chan-

nels

-

no external load)
Current consumption – system supply (5 V) 2.5 mA 2.5 mA
Data width (internal) 2bits 2bits
Isolation U

= 375 V system/supply Um = 375 V system/supply

m

Surrounding air temperature (operation) 0 … +55 °C 0 … +55 °C
Dimensions W x H x D 12 x 67.8 x 100mm 12 x 67.8 x 100mm

Explosion Protection

Safety-relevant data (circuit) U

R

eactancesEx ia IIC L

Reactances Ex ia IIB L
Reactances Ex ia IIA L
Reactances Ex ia I L

= 12 V; Io = 16 mA; Po = 48 mW;

o

Linear characteristic curve

= 180 mH; Co = 1.4 μF Lo = 190 mH; Co = 1.4 μF

o

= 560 mH; Co = 9 μF Lo = 600 mH; Co = 9 μF

o

= 900 mH; Co = 36 μF Lo = 1 H; Co = 36 μF

o

= 1 H; Co = 38 μF Lo = 1 H; Co = 38 μF

o

Reactances Reactances without accounting for the concur-

rence of capacitance (C

) and inductance (Lo)

o

Uo = 12 V; Io = 13.5 mA; Po = 40.5 mW;

Linear characteristic curve

Reactances without accounting for the concur-

rence of capacitance (Co) and inductance (Lo)

Ex guideline EN IEC 60079-0, -7, -11 EN IEC 60079-0, -7, -11

Approvals

Marking

Data sheet and further information, see:

4

; Marine; r OrdLoc/HazLoc/AEx;

1;

4 ATEX/IECEx; INMETRO

ATEX/IECEx:

II 3 (1) G

Ex ec [ia Ga] IIC T4 Gc

II (1) D

[Ex ia Da] IIIC

I (M1)

[Ex ia Ma] I

wago.com/750-435 wago.com/750-438

1; ; Marine; r OrdLoc/HazLoc/AEx;

4 ATEX/IECEx; INMETRO

4 ATEX/IECEx:

II 3 (1) G

Ex ec [ia Ga] IIC T4 Gc

II (1) D

[Ex ia Da] IIIC

I (M1)

[Ex ia Ma] I

A

+

5.9

Automation Technology

311