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Product Overview
The Schneider Electric TSXDSZ08R5 is a dedicated relay output module engineered for the Modicon TSX Micro programmable logic controller series. This module provides 8 independent, normally open (NO) relay outputs, enabling the PLC to interface directly with high-voltage field devices, including AC motors, contactors, and solenoid valves. By utilizing mechanical relay contacts, the unit ensures robust galvanic isolation between the low-voltage controller logic and high-power field circuits, protecting sensitive CPU components from electrical transients and voltage spikes common in industrial environments.
Features
- Eight independent relay output channels for versatile load control.
- Galvanic isolation between field contacts and the internal system backplane.
- Integrated RC snubber circuitry to suppress inductive spikes during reactive load switching.
- Front-panel LED indicators providing real-time status monitoring for each output channel.
- Removable screw terminal blocks for simplified field wiring and rapid maintenance.
- Compact form factor designed for integration into standard TSX Micro racks.
Applications
The TSXDSZ08R5 is widely utilized in industrial automation, particularly in sectors requiring high-voltage switching flexibility. Common applications include boiler control systems, fluid management and pumping stations, HVAC control, and general discrete manufacturing processes where physical isolation of control signals is required.
Technical Specifications
| Model | TSXDSZ08R5 |
| Output Type | 8 x Normally Open (NO) Relay |
| Voltage Range | 24 to 240 VAC / 24 to 48 VDC |
| Continuous Current (per channel) | 2.0 A max |
| Total Module Current | 10.0 A max |
| Min. Switching Current | 1 mA at 5 VDC |
| Bus Consumption | 45 mA at 5 VDC / 60 mA at 24 VDC |
| Insulation Voltage | 2000 VAC (contacts to logic bus) |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -25 to 70 deg C |
Installation Guidelines
- Ensure the PLC rack power is disconnected before installing or removing the module to prevent electrical damage.
- Mount the module securely into the designated TSX Micro slot and ensure the backplane connector is fully seated.
- Utilize shielded cabling for field wiring where high-EMI sources are present to maintain signal integrity.
- Verify that total load current does not exceed the 10.0 A module limit to prevent relay contact degradation.
- Maintain proper ventilation in the control cabinet to ensure ambient temperatures remain within the 0 to 60 deg C operating range.
FAQ
What is the primary function of the TSXDSZ08R5?
This module acts as an output interface for the TSX Micro PLC, allowing it to switch AC or DC power loads up to 240 VAC through its 8 onboard mechanical relays.
Does this module require external power for the relays?
The module draws its control power from the internal PLC bus, while the field-side load power is provided by the external circuit connected to the screw terminals.
Are the outputs isolated?
Yes, the module provides galvanic isolation between the outputs and the internal logic bus to protect the controller from field-side electrical faults.
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