CT 221H 32 channels digital output 24VDC NPN

CT 221H 32 channels digital output 24VDC NPN

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Product Description

Product Attributes

Model No.: CT-221H

Packaging & Delivery

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SPS-C Series IO_20260119_11180739

Unveiling the Future- ODOT's Highlights from SPS205

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Product Description

CT-221H 32 channels digital output/24VDC/NPN

Module features

Reliable 32-channel DO module with 0V low-level active output, designed to drive relays, solenoid valves, and other field devices. Features full electromagnetic isolation on both internal bus and outputs, built-in thermal shutdown and over-current protection, plus LED status indicators for all channels. Ideal for PLC and industrial Control Systems requiring robust, noise-immune I/O performance.

Technical parameters

General Parameters
Power	Max.54mA @ 5.0VDC
Isolation	I/O to internal bus: opto-couple isolation (3KVrms)
Field Power	Nominal:24VDC, Range: 19.2～28.8VDC
VCLAMP Voltage	Nominal:24VDC, Input range:12-36VDC
Wiring	Max.: AWG 18 Min.: AWG 24
Installation	35mm DIN-Rail
Size	1151475mm
Weight	65g
Environment Specification
Operating Temperature of Vertical Installation	-35℃~60℃
Operating Temperature of Horizontal Installation	-35℃~70℃
Relative Humidity	5~ 95%RH (No Condensation)
Storage Temperature	-40℃~85℃
Storage Humidity	5~ 95%RH (No Condensation)
Manufacturing Test Temperature	-40℃~75℃
Ingress Protection Rating	IP20
Output Parameters
Channel Number	32 channel sink type output
LED Indicator	32 channel output LED indicator
Rated Current	single channel output：Max.1000mA 16 channels simultaneously output：Max.500mA 32 channels simultaneously output：Max.300mA
Leakage Current	Max. 10uA
On Resistance	Typical value：500mΩ
Output Delay	OFF to ON: Max.100us ON to OFF: Max.150us
Protection Function	Over-temperature shut down: typical value 160℃ Overcurrent protection: typical value 1.8A Short circuit protection: supported Association protection: a group of 4 channels
Load type	GENERAL USE LOADS, PILOT DUTY LOADS

Application scenarios:

FQA

Q：Does this module support electromagnetic isolation and effectively prevent electrical interference?

A：Yes, this module features electromagnetic isolation on both the internal bus and field outputs, ensuring stability and safety in harsh industrial environments.

Q：Does the module have any protection mechanisms for overcurrent or overheating situations?

A：Yes, it includes thermal shutdown and overcurrent protection to safeguard the module and connected equipment from damage due to overheating or abnormal current conditions.

Q：How can I quickly check the working status of each channel?

A：This module comes with LED indicators for each digital output channel, providing real-time operational status for easy diagnostics and maintenance.

Certifications & Quality Assurance:

ODOT Products comply with international industrial standards, including CE and RoHS, and undergo strict quality control to ensure long-term reliable operation in industrial environments.