Schneider STBDRA3290 High-Current Relay Module

Schneider STBDRA3290 Modicon STB Relay Output

Product Introduction

The Schneider STBDRA3290 belongs to the Advantys STB distributed I/O platform. This standard relay output module provides 2 channels for high-current switching duties. Specifically, each channel handles loads up to 7 A, which suits larger contactors, heaters, and valve actuators. Furthermore, the STBDRA3290 delivers 1780V AC field-to-bus isolation for dependable separation. Therefore, it fits applications that demand both higher current capacity and electrical isolation.

Technical Specifications

Each output channel uses a relay contact arrangement rated for 7 A per channel. Moreover, the contacts switch either 24V DC or 115/230V AC loads. The higher current rating separates this module from standard relay output units in the same family. Additionally, the field-to-bus isolation withstands 1780V AC, protecting the logic bus from field transients.

The STBDRA3290 supports hot swapping when paired with a standard network interface module. This feature allows replacement without disrupting other stations on the network. Power for the module arrives through the STBPDT3100 power distribution module at 24V DC. Besides, the module mounts on the wider STBXBA3000 I/O base, which measures 28.1 mm. Consequently, the extra width supports the higher current handling requirements.

Mechanical and Environmental Parameters

This module uses the STBXBA3000 base, which measures 28.1 mm in width. The wider base accommodates the higher current paths inside the module. In addition, the product weighs approximately 0.130 kg. The housing carries an IP20 protection rating, so it belongs inside a control cabinet.

For environmental tolerance, the operating temperature spans 0°C to 60°C. Meanwhile, storage temperature extends from -40°C to 85°C. The module also withstands 95% relative humidity at 60°C without condensation. Moreover, it resists vibration at 3 gn on standard DIN rails. These ratings support reliable performance in typical factory conditions.

Installation Guide

First, snap the STBXBA3000 I/O base onto a 35 mm DIN rail. Next, slide the STBDRA3290 module onto the base until it locks firmly. After that, wire the relay contacts to the load circuits with conductors sized for 7 A. Additionally, confirm the STBPDT3100 supplies 24V DC power to the module. Finally, check the status LEDs to verify correct channel operation.

The module supports hot swapping with standard NIMs. However, always follow local electrical codes during installation. For instance, de-energize field circuits before wiring if safety procedures require it.

Packaging List

• 1x Schneider STBDRA3290 High-Current Relay Output Module

• 1x STBXTS1110 Screw Type Connector

• 1x STBXTS2110 Spring Clamp Connector

• 1x STBXBA3000 I/O Base

FAQ

Q1: What current rating does each channel provide?
A: Each of the two relay channels handles up to 7 A continuously. Therefore, the module drives larger contactors, heaters, and valve actuators directly.

Q2: Which load voltages can this relay module switch?
A: The contacts handle 24V DC or 115/230V AC loads. Additionally, the higher current rating suits demanding output circuits.

Q3: Is the Schneider STBDRA3290 still available?
A: Schneider Electric has discontinued this module and replaced it with the Modicon X80 range. However, distributors may still hold remaining inventory.

Q4: Which I/O base does this module require?
A: The STBDRA3290 mounts on the STBXBA3000 base, which measures 28.1 mm wide. The wider base supports the higher current paths.

Q5: Which power distribution module pairs with this relay module?
A: Use the STBPDT3100 power distribution module, which supplies 24V DC field power. Alternatively, the STBPDT3105 model also offers compatible performance.