WAGO 750-438: 2-channel digital input module for NAMUR signals, intrinsically safe, suitable for hazardous areas.
Product Model750-438
Product ID47725
Stock on Request
Last updated: 8/29/2026
Key Features
1
Feature2-channel digital input for NAMUR signals
2
FeatureIntrinsically safe for use in hazardous areas
3
Compact design48.5mm x 12mm x 100mm
4
Operating voltage24 V DC
5
FeatureHigh ambient temperature tolerance up to 55°C
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
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!
Number of digital inputs
2
Number of Channels
2
Signal type
NAMUR
Sensor connection
2 x (2-wire)
Input characteristic
High-side switching
Input filter (digital)
3ms
Open-circuit voltage
8.2V
Short-circuit current
≤ 8.2 mA
Signal current (0) NAMUR
≤ .2mA
Signal current (1) NAMUR
≤ .1mA
Switching hysteresis
0.2mA
Input pulse length
鈮 ms
Input pulse separation
鈮 ms
Power consumption Pmax.
0.4 W
Input data width (internal) max.
2bits
Intrinsically safe Ex i
yes
Input resistance
1,000Ω
Supply voltage (system)
5 VDC; Via data contacts
Current consumption (5 V system supply)
2.5mA
Supply voltage (field)
24 VDC; (Ex i power supply: Uo= max. 26.8 V); via power jumper contacts (power supply via blade contact; transmission via spring contact)
Current consumption, field supply (module with no external load)
16mA
Power loss Pl
0.27 W
Isolation
300 VAC system/supply
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)
1A
Identification
ATEXII 3 (1) G Ex ec [ia Ga] IIC T4 GcII (1) D [Ex ia Da] IIICI (M1) [Ex ia Ma] I
