Available on request
2-channel digital input; 24 VDC; 3 ms; Diagnostics
MPN: 753-421 · Brand: Wago
Price on request
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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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Quick facts
| Availability | Confirmed on request |
| Category | I/O Systems |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can 753-421 be shipped?
753-421 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 753-421 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 753-421 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 753-421, subject to availability and destination.
<p>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.</p><p>Each input module has a noise-rejection filter.</p><p>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.</p><p>The error is canceled automatically after it has been rectified.</p><p>Field and system levels are electrically isolated.</p>
Specifications
Notes
| Note | Pluggable connectors and coding fingers (753 Series) are not included. |
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 | 9 … 10 mm / 0.35 … 0.39 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 | pluggable |
Material data
| Color | light gray |
| Housing material | Polycarbonate; polyamide 6.6 |
| Fire load | 0.917 MJ |
| Weight | 41 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 | 4044918937368 |
| 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, 25550-51-0, 7439-92-1, 79-94-7 |
| REACH Candidate List Substance | 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol, 4-Methyl-1,2-cyclohexanedicarboxylic anhydride, 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) | 690e68ba-0215-4460-892c-37fe1829a6b1 |
| SCIP notification number (Belgium) | cf312aab-40e3-4b6c-b284-ee7b8f7cef5f |
| SCIP notification number (Bulgaria) | 7f7d90a1-0037-474b-a8d3-a13bf4d4cf00 |
| SCIP notification number (Czech Republic) | a7a51d37-4553-436b-ac5a-63f90fdf4fcd |
| SCIP notification number (Denmark) | a229da12-194d-4141-bede-a5fe05bf6cab |
| SCIP notification number (Finland) | 27fcb888-d74f-47ae-9161-7cd7fe5d1be0 |
| SCIP notification number (France) | 40a1933a-aeab-4ad4-b91f-bc1a224396aa |
| SCIP notification number (Germany) | 1942a76c-07f2-4c7b-bc76-6d8511c51d0a |
| SCIP notification number (Hungary) | 0fe759e0-a668-450a-8913-82771fc353e3 |
| SCIP notification number (Italy) | 02316f18-8b6f-4a97-929f-eead91b15d67 |
| SCIP notification number (Netherlands) | 70f31585-0b8b-4257-9085-87e58bd25220 |
| SCIP notification number (Poland) | 5a2089cc-2114-45c3-9131-56013a523618 |
| SCIP notification number (Romania) | f68942ba-b137-4184-b692-7239718335af |
| SCIP notification number (Sweden) | 949b3597-e3c1-4e64-855f-c7b79c985c0a |
12-month warrantyon all new stock
3-month warrantyon used & refurbished parts
30-day returnsno restocking fee on unused parts
Global shippingFast, tracked delivery worldwide
