Weidmuller TRS 230V U 1CO Multi-Voltage Interface Relay

Weidmuller TRS 230V U 1CO Multi-Voltage Interface Relay

The Weidmuller TRS 230V U 1CO multi-voltage interface relay is a compact DIN-rail relay designed for dependable signal and load switching in industrial control panels. It supports a wide control voltage range from 24 to 230 V AC/DC, allowing one relay type to be used across different power standards. Equipped with one changeover (1CO) contact, the relay provides reliable electrical separation between control and load circuits. Its slim housing enables space-efficient panel layouts while maintaining stable operation in automation and machine control applications.

In practical installations, the TRS 230V U 1CO helps simplify control cabinet design by reducing the number of relay variants required. This is especially useful in systems that combine AC and DC control voltages or are deployed in multiple regions. The relay offers consistent switching performance for typical industrial loads and supports long-term use in continuous operation environments. Its narrow width allows higher component density on the DIN rail, while standard screw terminals enable secure wiring and faster installation during panel assembly and servicing.

Why Weidmuller TRS 230V U 1CO?

The Weidmuller TRS 230V U 1CO stands out because it combines flexibility, reliability, and space efficiency in a single relay module. Its ability to operate across a wide AC and DC voltage range makes it an excellent choice for modern control panels that must adapt to different power standards. With a compact footprint and dependable switching behavior, it supports cleaner panel layouts, reduces component variety, and helps engineers design systems that are both scalable and future-ready.

What Problem Does It Solve?

This relay solves the common challenge of managing multiple control voltages within one system. Instead of using different relays for different voltage levels, the TRS 230V U 1CO allows a single solution to handle varied power inputs. This reduces inventory complexity, minimizes wiring mistakes, and shortens commissioning time. It also addresses space constraints in control cabinets by delivering reliable switching and electrical isolation in a very slim DIN-rail format.

Key Features & Specifications – Weidmuller TRS 230V U 1CO: 1122820000

Download Weidmuller TRS 230V U 1CO (1122820000) Datasheet

Commercial Information – Weidmuller TRS 230V U 1CO: 1122820000

The Applications

1. One Relay for Mixed-Voltage Control Cabinets

Industrial control cabinets often combine 24 V DC sensors, 110 V AC control signals, and 230 V AC actuators within the same system. The TRS 230V U 1CO relay allows engineers to standardize on a single relay type for all these voltages. This simplifies panel design, reduces spare part requirements, and lowers the risk of incorrect replacement during maintenance. Its slim DIN-rail footprint helps preserve space in crowded cabinets, while reinforced isolation protects sensitive control electronics from higher-voltage load circuits operating nearby.

2. Safe PLC Output Expansion for Industrial Equipment

PLC outputs are typically limited in current and voltage capability, making direct control of field devices impractical. The TRS 230V U 1CO relay is commonly used to bridge this gap, enabling low-power PLC signals to switch higher-voltage devices such as solenoid valves, pilot lamps, or small contactors. The changeover contact supports flexible control logic, while reliable switching behavior ensures accurate signal transfer. This approach improves system reliability and protects PLC output modules from electrical stress and overload.

3. Flexible Control in Building Automation Systems

Building automation systems frequently integrate lighting controls, ventilation units, alarms, and access systems operating at different voltages. The TRS 230V U 1CO relay simplifies integration by accepting both AC and DC control signals without requiring separate relay models. Its compact design allows installation in space-limited distribution boards, and its stable switching performance supports continuous operation. Standardizing on a universal relay helps facility managers streamline maintenance while ensuring consistent behavior across diverse building subsystems.

4. Electrical Isolation for Machine Status and Safety Signals

Machine control systems require clear separation between control logic and power circuits to maintain safety and signal integrity. The TRS 230V U 1CO relay provides effective electrical isolation for status feedback, interlocks, and safety-related signaling. It helps shield control electronics from voltage spikes and electrical noise generated by inductive loads. With a long mechanical service life, the relay supports frequent switching cycles, making it suitable for applications where dependable isolation and consistent signal integrity are essential over time.