Allen-Bradley 1746-IB32/D 32-Point DC Sink Input Module – SLC 500 Series
When a critical input module fails on the plant floor, the entire production line stops. Conveyors freeze, robotic arms halt mid-cycle, and every minute of downtime translates directly into lost revenue and missed delivery commitments. The Allen-Bradley 1746-IB32/D is the exact component standing between your SLC 500 system and that scenario — a high-density, field-proven 32-point DC sink input module engineered for continuous industrial duty.
Within the SLC 500 modular I/O family, the 1746-IB32/D occupies a strategic position: it delivers the highest point density available in a single-slot DC input module, making it the preferred choice for engineers who need to maximize I/O capacity without expanding the chassis footprint. Globally, the SLC 500 platform remains one of the most widely deployed small-to-mid-range PLC architectures, with millions of installed units across manufacturing, material handling, and process industries — ensuring long-term parts availability and deep integrator expertise.
Technical Specifications
- Catalog Number: 1746-IB32/D
- Series: D
- Platform: Allen-Bradley SLC 500
- Number of Input Points: 32
- Input Type: DC Sink (Current Sinking)
- Nominal Input Voltage: 24V DC
- Input Voltage Range: 10–30V DC
- Input Current (ON State): 8 mA @ 24V DC
- ON-State Voltage Threshold: ≥ 10V DC
- OFF-State Voltage Threshold: ≤ 5V DC
- Backplane Current Draw (5V DC): 185 mA
- Isolation: Optical isolation between field and backplane
- Slot Width: Single-slot
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Relative Humidity: 5–95% non-condensing
- Certifications: UL, CSA, CE
Key Features & Benefits
- 32-Point High Density: Maximizes I/O capacity in a single chassis slot, reducing hardware costs and panel space requirements.
- 24V DC Sink Input: Compatible with the vast majority of industrial sensors, proximity switches, and pushbuttons using NPN (sinking) output signals.
- Optical Isolation: Protects the SLC 500 backplane and processor from field-side voltage transients and electrical noise common in heavy industrial environments.
- LED Status Indicators: Individual per-point LEDs provide instant visual diagnostics without requiring a programming terminal, accelerating troubleshooting.
- Series D Revision: Incorporates Rockwell Automation’s latest hardware revisions for improved noise immunity and long-term component availability.
- Drop-in Replacement: Fully backward-compatible with earlier 1746-IB32 series revisions, enabling seamless field replacement without program changes.
- Removable Terminal Block: Wiring can be pre-terminated and transferred during module swap, minimizing downtime during maintenance.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white assembly lines, transfer presses, and conveyor indexing systems using high-density sensor arrays.
- Food & Beverage: Packaging machinery, filling lines, and conveyor control where washdown-rated sensors output 24V DC NPN signals.
- Material Handling: Sortation systems, palletizers, and automated storage/retrieval systems (AS/RS) requiring large numbers of position inputs.
- Water & Wastewater Treatment: Pump station monitoring, valve position feedback, and level switch inputs in distributed control panels.
- Oil & Gas: Wellhead control panels and pipeline monitoring systems where SLC 500 platforms are deeply embedded in existing infrastructure.
- General Discrete Manufacturing: Any application requiring reliable, high-density 24V DC digital input acquisition within the SLC 500 ecosystem.
System Integration & Compatible Parts
The 1746-IB32/D is designed to operate within the Allen-Bradley SLC 500 modular I/O system. Compatible and commonly paired components include:
- SLC 500 Processors: 1747-L20, 1747-L30, 1747-L40, 1747-L511, 1747-L514, 1747-L524, 1747-L531, 1747-L541, 1747-L542, 1747-L543, 1747-L551, 1747-L552, 1747-L553
- SLC 500 Chassis: 1746-A4, 1746-A7, 1746-A10, 1746-A13
- Power Supplies: 1746-P1, 1746-P2, 1746-P3, 1746-P4, 1746-P7
- Complementary Output Modules: 1746-OB32 (32-point DC source output), 1746-OV32 (32-point DC sink output)
- Wiring Systems: 1492-IFM series interface modules for pre-wired terminal block connections
Our Quality Assurance Process
At Konmask.com, every Allen-Bradley 1746-IB32/D module undergoes a structured verification process before shipment:
- Visual Inspection: Physical examination of the module housing, terminal block, connector pins, and PCB for damage, corrosion, or counterfeit indicators.
- Label & Revision Verification: Catalog number, series revision, and date code are cross-referenced against Rockwell Automation’s published documentation.
- Functional Test: Where applicable, modules are bench-tested to verify backplane communication and I/O point response prior to packaging.
- Anti-Static Packaging: All modules are shipped in ESD-protective bags with foam cushioning to prevent transit damage.
- Traceability: Each order is documented with source traceability records available upon request for MRO and compliance purposes.
How to Order
Konmask.com specializes in B2B industrial automation components. To place an order or request a quote for the Allen-Bradley 1746-IB32/D:
- Email: support@konmask.com
- Phone/WhatsApp: +0086 19859288691
- Online: Submit an inquiry directly through this product page
Please include your required quantity, delivery timeline, and destination country. We respond to all inquiries within 1 business day.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and industrial control components — not a generalist marketplace.
- Global Sourcing Network: Access to both new and surplus Allen-Bradley inventory from verified supply chain partners worldwide.
- Technical Support: Our team includes engineers with hands-on SLC 500 experience who can assist with compatibility and application questions.
- Fast Quotation: Competitive pricing with transparent lead times — no hidden fees.
- Secure Export Compliance: All international shipments are handled in accordance with applicable export regulations.
Frequently Asked Questions
Q: Is the 1746-IB32/D compatible with all SLC 500 chassis sizes?
A: Yes. The 1746-IB32/D is a single-slot module compatible with all SLC 500 chassis (1746-A4, A7, A10, A13) and all SLC 500 processors. It occupies one I/O slot and is addressed as a standard discrete input module.
Q: What is the difference between the 1746-IB32 and 1746-IB32/D?
A: The “/D” designates the Series D hardware revision. Series D incorporates component updates for improved noise immunity and long-term manufacturability. It is fully functionally equivalent to earlier series and is a direct drop-in replacement.
Q: Can this module accept signals from PNP (sourcing) sensors?
A: No. The 1746-IB32/D is a current sinking (NPN-compatible) input module. For PNP sourcing sensors, the appropriate module is the 1746-IV32 (DC source input). Please confirm your sensor output type before ordering.
Q: Do you supply new or surplus units?
A: Konmask.com supplies both new and quality-verified surplus units depending on availability. All units are inspected and tested. Please specify your preference when submitting an inquiry.
Q: What is the lead time for the 1746-IB32/D?
A: Lead time varies by stock availability. In-stock units typically ship within 2–3 business days. For out-of-stock items, we will provide a sourcing timeline upon inquiry. Contact us for current availability.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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