Wago

Wago 750-421

2-channel digital input; 24 VDC; 3 ms; Diagnostics

MPN: 750-421
Category: I/O Systems

Price and lead time confirmed within 1 business day

Request a Quote

1We check stock, condition and lead time
2You get a written quote by email
3Approve it and we ship — in-stock parts within 1 business day

12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
100% positive eBay feedback
Ships via

Have spare Wago parts? We buy surplus →

What is the Wago 750-421?

This digital input module receives control signals from the field side and supplies a short-circuit proof voltage to the sensors. The module transfers the control signals and other information via a fieldbus coupler to the higher-level controller.

Each input module has a noise-rejection filter.

Each sensor can be supplied separately. A short circuit to ground is indicated as an error/fieldbus failure and a message is sent to the supervisory control.

The error is canceled automatically after it has been rectified.

Field and system levels are electrically isolated.

Specifications

Technical data

Number of digital inputs	2
Total number of channels (module)	2
Signal type	Digital
Signal type (voltage)	24 VDC
Sensor connection	2 x (2-wire, 3-wire)
Input characteristic	high-side switching
Input filter	3 ms
Input current per channel for signal (1) typ.	3.7 mA
Voltage range for signal (0)	−3 … +5 VDC
Voltage range for signal (1)	15 … 30 VDC
Output current per channel	0.5 A
Short-circuit current	1.5 A, pulsating due to thermal overload protection
Sensor supply	24 VDC
Diagnostics	Short circuit, automatic acknowledgment after error rectified
Input data width (internal) max.	4 Bit
Supply voltage (system)	5 VDC; via data contacts
Current consumption (5 V system supply)	12 mA
Supply voltage (field)	24 VDC (-25 … +30 %); via power jumper contacts (power supply via blade contact; transmission (field side supply voltage only) via spring contact)
Isolation	500 V system/field
Indicators	LED (A, C) green: Status DI 1, DI 2; LED (B, D) red: Error DI 1, DI 2
Number of incoming power jumper contacts	2
Number of outgoing power jumper contacts	2
Current carrying capacity (power jumper contacts)	10 A

Connection data

Connection technology: I/O	8 x CAGE CLAMP® (inputs)
Connectable conductor materials	Copper
Connection type	Input
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	69.8 mm / 2.748 inches
Depth from upper-edge of DIN-rail	62.6 mm / 2.465 inches

Mechanical data

Mounting type	DIN-35 rail
Pluggable connector	fixed

Material data

Color	light gray
Housing material	Polycarbonate; polyamide 6.6
Fire load	1.02 MJ
Weight	49.8 g
Conformity marking	CE

Environmental requirements

Ambient temperature (operation)	0 … +55 °C
Ambient temperature (storage)	-40 … +85 °C
Protection type	IP20
Pollution degree	2 per IEC 61131-2
Operating altitude	0 … 2000 m / 0 … 6562 ft
Mounting position	Horizontal left, horizontal right, horizontal top, horizontal bottom, vertical top and vertical bottom
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 61000-6-4, marine applications
Exposure to pollutants	per IEC 60068-2-42 and IEC 60068-2-43
Permissible H<sub>2</sub>S contaminant concentration at a relative humidity <lt/> 75 %	10 ppm
Permissible SO<sub>2</sub> contaminant concentration at a relative humidity <lt/> 75 %	25 ppm

Commercial data

Product Group	15 (I/O System)
PU (SPU)	1 pcs
Packaging type	Box
Country of origin	DE
GTIN	4045454495008
Customs tariff number	85389099990

Product Classification

UNSPSC	32151705
eCl@ss 10.0	27-24-26-04
eCl@ss 9.0	27-24-26-04
ETIM 9.0	EC001599
ETIM 10.0	EC001599
ECCN	NO US CLASSIFICATION

Environmental Product Compliance

CAS-No.	1303-86-2, 1317-36-8, 7439-92-1, 79-94-7
REACH Candidate List Substance	2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol, Diboron trioxide, Lead, Lead monoxide
RoHS Compliance Status	Compliant,With Exemption
RoHS Exemption	6(c), 7(a), 7(c)-I, 7(c)-II
SCIP notification number (Austria)	803ed15f-47c7-47af-93c7-03f4217ca831
SCIP notification number (Belgium)	a4eadee4-501f-404d-907a-d2abde33bebc
SCIP notification number (Bulgaria)	eb4795f9-30a6-4773-a667-b06bf93c3a72
SCIP notification number (Czech Republic)	549d6e19-fcd3-4abc-bcae-42c616a2f9cf
SCIP notification number (Denmark)	1b35d4c1-68b8-4707-9d46-8ca3a5acd5d8
SCIP notification number (Finland)	e0c0e1b3-91a5-469f-8da1-4d4d99097b96
SCIP notification number (France)	51bb9dff-ee15-4e7d-9af9-4150d1c8c11a
SCIP notification number (Germany)	fc9f1adf-96cf-445e-b9c7-6e803f976708
SCIP notification number (Hungary)	d2f9a2d6-007f-41d5-904a-f281d8970651
SCIP notification number (Italy)	12ce542d-acf7-4617-a9e0-ced61fc4108b
SCIP notification number (Netherlands)	57a24adf-2146-4697-8320-6060779bb171
SCIP notification number (Poland)	fb1f3cf0-883f-4331-9602-346ac3571954
SCIP notification number (Romania)	87107905-be31-4c23-a2f0-4e2a534580d6
SCIP notification number (Sweden)	63b3124a-dd15-4c17-b337-c5c391958f50

750-421: frequently asked questions

When can 750-421 be shipped?

750-421 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up 750-421 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for 750-421 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 750-421, subject to availability and destination.