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Help CenterHoneywell CV-DINA-DO16-6A – DIN-rail 16‑channel Digital Output Module for Switching Loads up to 6 A
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The Honeywell CV-DINA-DO16-6A is a compact, DIN-rail mounted digital output module designed for applications that need reliable switching of field devices like solenoid valves, contactor coils, lamps, and small actuators. From my experience, the “DO16-6A” designation typically indicates 16 discrete outputs with relay contacts rated up to 6 A (resistive), which is handy when you don’t want to add interposing relays for medium-duty loads.
It’s well-suited for panel builders and OEMs who prefer clean wiring and solid isolation between control logic and field circuits. You might notice that this kind of module simplifies mixed AC/DC output panels and, in many cases, shortens commissioning time.
Key Features16 isolated relay outputs – Each output is a dry contact designed for switching external loads without exposing the controller’s low-voltage side.
Up to 6 A per channel (resistive) – Typically supports 250 VAC or 30 VDC loads; ideal for solenoids, pilot lights, and contactor coils. Always verify inductive derating.
DIN-rail form factor – Slim, panel-friendly housing that fits standard EN 60715 rails for quick installation and service.
Clear channel labeling – Terminal markers and status indication (where fitted) speed up I/O checks during FAT/SAT.
Galvanic isolation – Reduces noise coupling and improves reliability when switching mixed voltages.
Field-friendly terminals – Screw terminals sized for typical control cabinet wiring, making retrofits straightforward.
Honeywell ecosystem compatibility – Designed for the CV-series DIN-rail I/O architecture, ensuring smooth integration with Honeywell controllers in most cases.
| Brand / Model | Honeywell CV-DINA-DO16-6A |
| Output type | 16 digital outputs, relay contacts (dry contact), individually switched |
| Load rating (typical) | Up to 6 A resistive per channel; commonly 250 VAC or 30 VDC; lower rating for inductive loads |
| Power requirements | 24 VDC nominal for electronics (typical for DIN I/O) |
| Signal I/O terminals | Screw terminals for field wiring; per-channel commons as per relay design |
| Communication / bus | Integrates with Honeywell CV-series DIN-rail backplane/bus (module-level interface) |
| Installation method | DIN-rail (EN 60715) mounting inside control panels |
| Operating temperature | Typically 0 to 55 °C; follow product datasheet for exact range |
| Dimensions & weight | Compact DIN module; panel-space saving design (exact values per datasheet) |
Note: Ratings above reflect common Honeywell relay DO module conventions for “DO16-6A”. For inductive loads (solenoids, relays), apply proper suppression and observe derating.
Machinery and OEM panels – Switching contactors, brakes, clutches, and stack lights without extra interposing relays in many cases.
Water/Wastewater – Solenoid valves, dosing pumps (pilot control), and valve position indication circuits.
HVAC & building services – AHU/damper actuation, pump starters, and lighting zones where relay isolation is preferred.
Process skids & utilities – Skid-mounted controls requiring mixed AC/DC output switching with clear segregation.
Material handling – Conveyors, diverters, and beacon alarms that benefit from 6 A contact capability.
A maintenance lead recently told me, “The 16-channel relay card gave us enough headroom for our 230 VAC solenoids—no extra relay bank, less wiring, fewer points of failure.” That seems to be the typical feedback with 6 A channels.
Reduced panel complexity – Higher current relay contacts often remove the need for interposing relays, saving space and labor.
Robust isolation – Electrical separation between logic and field-side improves resilience against noise and transients.
Honeywell integration – Consistent wiring practices, diagnostics behavior, and lifecycle support across the CV-series stack.
Lower total cost – Fewer components to purchase and maintain, plus quicker FAT/SAT due to straightforward point testing.
Serviceability – DIN-rail mount with clearly labeled terminals for faster troubleshooting and replacements.
Cabinet environment – Mount on EN 60715 DIN rail in a clean, dry panel. Provide ventilation; avoid hotspots near VFDs or soft starters.
Wiring – Use appropriately rated copper conductors (commonly 0.5–2.5 mm²). Separate AC and DC wiring. Provide per-channel fusing or common fusing as required by your risk assessment.
Inductive loads – Fit RC snubbers (AC) or flyback diodes (DC) across coils to reduce contact wear and EMI.
Grounding & segregation – Keep control grounds clean; route signal and power cables separately to minimize noise coupling.
Routine checks – Periodically tighten terminals, inspect relays for contact wear (signs of heating), and verify output operation during scheduled PMs.
Firmware/config – If the module participates in system diagnostics, keep controller firmware and I/O configuration aligned with the vendor-specified versions.
Safety – De-energize circuits before servicing. Verify lockout/tagout. Confirm that contact ratings match the load category (AC-1/AC-15, DC-1/DC-13), especially for inductive duties.
Certifications – Honeywell DIN-rail I/O modules are typically CE and RoHS compliant; many variants also carry UL/cUL listings. Check the specific datasheet for the exact approvals tied to CV-DINA-DO16-6A.
Manufacturing quality – Built under Honeywell’s quality system (commonly ISO 9001) with traceable components and revision control.
Warranty – Standard Honeywell limited warranty applies (often 12 months from shipment), with extended service options available through authorized channels.
Support – Access to Honeywell’s technical assistance, lifecycle planning, and spare parts stocking for long-term availability.
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