Wago

750-438

2-channel digital input; NAMUR; Intrinsically safe
750-438
750-438
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A total of 185 Parts In-Stock from 21 Distributors

Environmental Requirements

Ambient temperature (operation)
0 … +55 °C
Ambient temperature (storage)
-25 … +85 °C
Protection type
IP20
Pollution degree
2 per IEC 61131-2
Operating altitude
0 … 2000 m / 0 … 6562 ft
Mounting position
Horizontal (standing/lying); vertical
Relative humidity (without condensation)
95 %
Vibration resistance
4g per IEC 60068-2-6
Shock resistance
15g per IEC 60068-2-27
EMC immunity to interference
Per EN 61000-6-2, marine applications
EMC emission of interference
Per EN 61000-6-3, marine applications
Exposure to pollutants
Per IEC 60068-2-42 and IEC 60068-2-43
Permissible H2S contaminant concentration at a relative humidity 75 %
10 ppm
Permissible SO2 contaminant concentration at a relative humidity 75 %
25 ppm

Connection Data

Connection technology: inputs/outputs
8 x CAGE CLAMP®
Connection type 1
Inputs/outputs
Solid conductor
0.08 … 2.5 mm² / 28 … 14 AWG
Fine-stranded conductor
0.08 … 2.5 mm² / 28 … 14 AWG
Strip length
8 … 9 mm / 0.31 … 0.35 inches

Physical Data

Width
12 mm / 0.472 inches
Height
100 mm / 3.937 inches
Depth
67.8 mm / 2.669 inches
Depth from upper-edge of DIN-rail
60.6 mm / 2.386 inches

Material Data

Housing material
Polycarbonate; polyamide 6.6
Fire load
0.976 MJ
Weight
44.100 g
Conformity marking
CE

Technical Data

Number of digital inputs
2
Total number of channels (module)
2
Signal type
NAMUR
Supply voltage (sensor)
8.2 VDC; short-circuit-protected, each channel supplied separately
Sensor connection
2 x (2-wire)
Input characteristic
High-side switching
Input filter (digital)
3 ms
Open-circuit voltage
8.2 V
Short-circuit current
≤ 8.2 mA
Signal current (0) NAMUR
≤1.2 mA
Signal current (1) NAMUR
≥2.1 mA
Switching hysteresis
0.2 mA
Input pulse length
5 ms
Input pulse separation
3 ms
Power consumption Pmax.
0.4 W
Input data width (internal) max.
2 bits
Intrinsic safety Ex i
Yes
Input resistance
1000 Ω
Supply voltage (system)
5 VDC; via data contacts
Current consumption (5 V system supply)
2.5 mA
Supply voltage (field)
24 VDC; (Ex i power supply: UO = max. 27.3 V); via power jumper contacts (power supply via blade contact; transmission via spring contact)
Current consumption, field supply (module with no external load)
16 mA
Power loss Pl
0.27 W
Isolation
300 VAC system/field
Indicators
LED (A, E) green: Status DI 1, DI 2
Number of incoming power jumper contacts
2
Number of outgoing power jumper contacts
2
Current carrying capacity (power jumper contacts)
1 A
Marking
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

Mechanical Data

Mounting type
DIN-35 rail

Specifications

Product Group Code
0015

Commercial Data

Packaging type
Box
Country of origin
DE
GTIN
4045454725525
Customs tariff number
85389099990

Notes

Note
The digital input module must only be operated with a 24 VDC Ex i power supply!General information (e.g., installation regulations) on explosion protection is available in the WAGO I/O System 750 manuals!

Explosion Protection

Ex standard
EN IEC 60079-0, -7, -11
Safety-relevant data (circuit)
Uo = 12 V; Io = 13.5 mA; Po = 40.5 mW; linear characteristic curve
Reactances Ex ia IIC
Lo = 190 mH; Co = 1.4 µF
Reactances Ex ia IIB
Lo = 600 mH; Co = 9 µF
Reactances Ex ia IIA
Lo = 1 H; Co = 36 μF
Reactances Ex ia I
Lo = 1 H; Co = 38 µF
Reactances (note)
Reactances without accounting for the concurrence of capacitance (Co) and inductance (Lo)

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