Honeywell 621-3580R Discrete Input Module
$209.00
$450.00
Description
Overview
The Honeywell 621‑3580R is a high-performance discrete input module engineered for Honeywell 620/621-series and TDC-based automation platforms. This module provides 32 channels of sinking-type 24 VDC digital inputs, enabling precise monitoring of switches, sensors, and interlock devices in industrial applications. The “R” designation signifies hot-swap capability, allowing insertion or removal while the I/O rack remains powered, without disrupting other modules.
Key Features
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32-channel sinking digital input design for reliable ON/OFF signal detection
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Supports hot-swapping for continuous system operation
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Robust industrial construction with high noise immunity
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Compatible with Honeywell 620/621-series and TDC automation systems
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Suitable for real-time field device monitoring in harsh industrial environments
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Honeywell |
| Part Number | 621‑3580R |
| Module Type | 24 VDC Sinking Discrete Input Module |
| Input Channels | 32 sinking-type digital inputs |
| Input Type | Sink (−Vdc common) |
| Points per Common Group | 16 points |
| Nominal Voltage | 24 VDC |
| Operating Voltage Range | 18–28 VDC |
| Input Current | 6–15 mA (typical 10 mA at 24 VDC) |
| Hot-Swap | Supported |
| Dimensions | 120 × 80 × 50 mm |
| Weight | 0.99 lbs |
Applications
Ideal for process control, chemical plants, power generation, and manufacturing facilities, the 621‑3580R ensures accurate signal acquisition for control systems requiring high reliability and minimal downtime.
FAQ
Q: Can this module be replaced while the system is running?
A: Yes. The “R” version supports hot-swapping without interrupting other I/O modules.
Q: What type of input devices are compatible?
A: Compatible with 24 VDC discrete devices including switches, sensors, and interlocks.
Q: How does this module compare to Honeywell 621‑3581R?
A: The 621‑3581R provides similar sinking inputs but may differ in channel count or signal processing speed. Always verify specifications before replacement.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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