Allen-Bradley 1734-CTM POINT I/O Terminal Module

1734-CTM POINT I/O Common Terminal Module

Product Introduction

The Allen-Bradley 1734-CTM is a common terminal module that expands the termination capabilities of your POINT I/O system. Specifically, it provides additional connection points for field devices, making it an essential component for managing complex wiring schemes. This module supports higher-density 8-channel I/O modules and serves as an external common connection point for three-wire devices. Its flexible power supply design accommodates both AC and DC voltages, further enhancing its versatility in diverse automation environments.

Technical Specifications

The 1734-CTM offers a wide range of power supply options to suit various applications. It accepts a field power supply of either 1–28.8 Volts DC or 12–240 Volts AC. For current handling, it supports up to 4 amps per module. The module provides a continuous isolation voltage rating of 250 Volts, and it has successfully passed a 1600 Vrms dielectric withstand test for 60 seconds. Its keyswitch position is 5, which ensures proper mechanical keying when installing onto the base.

Power and Wiring Capabilities

This module can handle both AC and DC field power, giving you significant flexibility in system design. For DC systems, the supply voltage ranges from 10 to 28.8 Volts DC, while for AC systems, it accepts 120 to 240 Volts AC. The 1734-CTM supports a field power supply current of 4 amps per module, enabling it to drive multiple field devices. Additionally, it serves as an external common connection point, which proves especially useful when wiring three-wire devices such as proximity sensors and photoelectric sensors.

Installation and Mounting

Installing the 1734-CTM requires a compatible terminal base assembly. You can mount it on a 1734-TOP, 1734-TOPS, 1734-TB, or 1734-TBS base. Before installation, ensure that you have keyed the mounting base correctly. The module features a keyswitch position of 5 for accurate alignment. You can install this module either before or after mounting the base onto the DIN rail, providing flexibility during system assembly.

Environmental and Safety Certifications

The 1734-CTM carries a C-UL-US certification, confirming its compliance with North American safety standards. Notably, it is UL Listed for use in Class I, Division 2, Groups A, B, C, and D hazardous locations, making it suitable for environments where flammable gases or vapors may be present. For optimal performance, maintain an operational temperature between -20 and 55 degrees Celsius (-4 to 131 degrees Fahrenheit). Additionally, keep the relative humidity between 5% and 95%, noncondensing.

Applications and Use Cases

This terminal module finds extensive use in systems requiring high-density I/O configurations. Because it supports 8-channel modules, the 1734-CTM helps reduce the overall footprint of your control panel. Moreover, its ability to serve as a common connection for three-wire devices simplifies wiring and reduces the need for additional terminal blocks. Many engineers use this module to streamline field device termination and improve the maintainability of their POINT I/O installations.

Shipping & Logistics

We process all orders for the 1734-CTM promptly and ship them using premium global carriers. Our standard shipping partners include Fedex, UPS, and DHL, ensuring fast and trackable delivery to your facility worldwide.

Packaging List

• 1 x Allen-Bradley 1734-CTM POINT I/O Common Terminal Module

• 1 x Installation Instructions sheet (publication 1734-IN025)

Frequently Asked Questions (FAQ)

1. Which terminal bases are compatible with the 1734-CTM?
You can install this module on a 1734-TOP, 1734-TOPS, 1734-TB, or 1734-TBS terminal base assembly.

2. Can the 1734-CTM handle both AC and DC power inputs?
Yes, it accepts a wide range of inputs, including 1–28.8 Volts DC and 12–240 Volts AC, offering great flexibility.

3. What is the maximum current rating for the 1734-CTM?
It supports a field power supply current of up to 4 amps per module.

4. Is the 1734-CTM suitable for hazardous locations?
Yes, it carries a UL Listing for Class I, Division 2, Groups A, B, C, and D hazardous locations, making it suitable for such environments.

5. What is the purpose of the keyswitch position on the 1734-CTM?
The keyswitch position of 5 ensures proper mechanical keying and alignment when installing the module onto the mounting base.