CC-TDOB01 — Honeywell Series C Non-Redundant 24 V Bussed Digital Output IOTA

CC-TDOB01 is the 9-inch, non-redundant Input/Output Termination Assembly for Honeywell’s bussed 24 VDC digital output path. The electronics module that plugs onto this board is CC-PDOB01 (32 source-type, field-isolated, bussed outputs). The redundant counterpart is the 12-inch CC-TDOB11. This page is not a digital output IOP listing. HKXY Instruments is a China industrial automation trader with 15 years of export experience, not the OEM.

Identity versus CC-TDOB11 and CC-PDOB01

Load grouping on the paired CC-PDOB01

The current limits below are specified for the bussed 24 VDC digital output function of CC-PDOB01, which this IOTA terminates. Outputs are source type and share a common return. Field excitation may come from the Series C system supply or from an external 24 V supply; an external source can galvanically isolate the outputs from the Series C power system. Documented absolute-maximum load currents (no-short condition):

• 0.5 A per channel
• 4 A per group of eight channels (channels 1–8, 9–16, 17–24, 25–32)
• 6 A per module

If shorted channels are already present, Honeywell reduces the allowable group current to 3 A (one short condition) or 1.5 A (two short conditions) before protection disables the function. Galvanic isolation is specified as 1500 VAC RMS or ±1500 VDC. Typical on-state voltage is 24 V at 0.5 A; turn-on and turn-off time is 10 ms maximum. Load voltage is listed as 15–30 VDC maximum in the same table — re-check the official sheet for the installed revision before applying those numbers to a design [TO CONFIRM against the current document revision].

The IOP provides fuse-less short-circuit protection: a shorted channel is detected and de-energized until the fault is cleared. Each channel can be configured latched, pulsed, or PWM, with direct or reverse action and per-channel FAILOPT (hold last value or shed to a user-defined safe value). Those behaviors are properties of CC-PDOB01, not a reason to order this IOTA when the installed board is a relay or sink-type termination.

Cabinet choice: 9-inch non-redundant versus 12-inch redundant

Choose CC-TDOB01 when the mounting pitch and IOM count are non-redundant 9-inch. Choose CC-TDOB11 when the same CC-PDOB01 IOP is used on a 12-inch redundant IOTA (two electronics modules, 0 ms documented switchover gap on the output). Swapping one length for the other is a mechanical and redundancy change, not a label typo. If the load is a dry contact or a mixed voltage, the project may instead need the relay IOTA path that still uses CC-PDOB01 (CC-TDOR01 / CC-TDOR11). Sink-type 24 V outputs belong on the CC-PDOD51 family, not on this bussed source IOTA.

What to send with an RFQ

• Nameplate photo showing CC-TDOB01 (or the installed sibling code if you are unsure)
• Whether the cabinet is non-redundant 9-inch or redundant 12-inch
• Confirmation that the IOP is CC-PDOB01, plus any required load grouping or external 24 V field power
• Quantity, destination, inspection scope, and packing needs

Stock, price, and lead time are not stated here. They are confirmed only after the exact codes are checked.

Related Series C output hardware

Comparison links only — not interchangeability claims.

• CC-TDOB11 — 12-inch redundant 24 V bussed DO IOTA
• CC-PDOB01 — 32-channel bussed 24 V digital output IOP
• Series C I/O spare overview

FAQ

Is CC-TDOB01 a digital output module?
No. It is the 9-inch non-redundant IOTA. The digital output module is CC-PDOB01.

How does it differ from CC-TDOB11?
Same IOP family and bussed 24 V source function, but CC-TDOB01 is 9-inch non-redundant and CC-TDOB11 is 12-inch redundant. They do not share a mounting footprint.

Can I land relay or sink outputs on this IOTA?
Not as a substitute for the relay IOTAs (CC-TDOR01 / CC-TDOR11) or the sink-type IOTAs (CC-TDOD51 / CC-TDOD61). Confirm the installed termination type first.

Where do the 0.5 A / 4 A / 6 A figures come from?
They are the absolute-maximum load currents documented for CC-PDOB01 in EP03-490-520 section 5.16. Re-validate them against the revision used on your project.

Do you list a price on this page?
No. Ask for a current quotation after the nameplate and redundancy layout are confirmed.