Overview
Manuals
Relay Load Limits
NO/NC Selection
IOTA Extension Pair
Features:
- Coated, nonredundant 6-inch IOTA identified as CC-TDOR01 / 51308376-175, with CC-PDOB01 and separate relay-extension hardware.
- The matched relay arrangement supplies 32 isolated dry contacts, with Form A normally open or Form B normally closed selection by output jumper.
- Relay load limits depend on AC/DC voltage and resistive or inductive duty; channel isolation, socketed relays and output-status indication support maintenance.
The CC-TDOR01 is the nonredundant termination assembly in Honeywell's Series C relay-output configuration. It provides the interface for a CC-PDOB01 output module and the connection to the relay-extension hardware, rather than acting as an independent controller or a complete bank of field relays. Honeywell identifies the coated IOTA by assembly number 51308376-175 and a nominal 6-inch size. The associated relay arrangement delivers 32 isolated output contacts, with the required normally open or normally closed behavior selected separately for each channel.
Load selection is an essential part of applying this assembly. The documented relay contacts support up to 3 A at 125 or 250 VAC for resistive duty, but the allowable DC current falls as voltage rises, and inductive duty has separate limits. Check both the steady-state load and any starting or switching surge before connecting equipment. Record the existing jumpers, IOM identity, relay-extension connection and field-circuit labels before replacement, then verify commanded states and contact behavior using the approved installation and commissioning procedure.
The CC-TDOR01 Honeywell Nonredundant Digital Output Relay IOTA may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-TDOR01 documentation and reference links.
Important Notice: This six-page excerpt retains both original document covers, the complete relay specification, the nonredundant IOTA drawing and the exact spare-parts entry. Ratings refer to the matched IOM/IOTA/relay-extension arrangement. Use the complete applicable installation instructions for field wiring and servicing.
Match the switched load to the applicable relay rating. Resistive limits are 3 A at 125/250 VAC, 3 A at 30 VDC, 1 A at 48 VDC and 0.2 A at 125 VDC. For inductive AC duty, the stated limit is 2 A at 125/250 VAC with a 0.4 power factor. Check the full specification for other load conditions; the maximum load voltage is not a promise that every listed current is permitted at that voltage.
The complete relay arrangement provides 32 isolated contacts. A channel jumper selects Form A (SPST, normally open) or Form B (SPST, normally closed) operation. Record the installed settings and confirm the intended de-energized contact state before maintenance. A relay contact choice does not by itself establish a safety-rated function or replace the plant's interlock design and validation.
The nonredundant CC-TDOR01 IOTA is listed with CC-PDOB01 and the separate CC-SDOR01 relay extension. Its nominal 6-inch size differs from the 12-inch redundant CC-TDOR11 arrangement. Inspect the actual IOTA label and relay-extension connection, and specify whether the order requires only the IOTA or additional hardware. Similar signal functions do not make the redundant and nonredundant assemblies direct substitutes.
