Weidmuller DRM270730LT 230 V AC Industrial Relay with LED & Test Button
Weidmuller DRM270730LT 230 V AC industrial relay with LED and test button is a robust plug-in relay designed for dependable switching in industrial control and automation systems. Part of the D-SERIES, this relay provides two changeover contacts with a continuous current rating suitable for both control signals and moderate power loads. Its integrated status LED offers immediate visual feedback of operating conditions, while the built-in test button allows safe manual actuation during commissioning or maintenance. Compact dimensions and standardized connections make the DRM270730LT easy to integrate into modern control panels.
The DRM270730LT is built to support efficient operation and simplified diagnostics in real-world industrial environments. Visual status indication reduces troubleshooting time, enabling technicians to quickly confirm relay activation without additional tools. The test button supports controlled verification of downstream circuits, improving safety and reducing downtime during maintenance. With reliable contact materials, stable switching behavior, and compatibility with multiple relay socket options, this relay is well suited for PLC interfacing, machine automation, HVAC control, and power management applications where reliability, clarity, and serviceability are critical.
Why DRM270730LT?
The DRM270730LT stands out because it combines dependable switching performance with practical, technician-friendly features in a compact relay format. Its integrated status LED and test button transform everyday maintenance into a faster, more intuitive process. Designed for industrial reliability, it fits seamlessly into control panels where space, clarity, and long service life matter, making it a smart choice for engineers who value both performance and ease of use.
What problem does it solve?
The DRM270730LT addresses the common challenges of unclear relay status, time-consuming troubleshooting, and unsafe testing during maintenance. By providing immediate visual indication and manual test capability, it eliminates guesswork when diagnosing control circuits. This reduces downtime, minimizes wiring errors, and supports safer commissioning in automation systems where stable switching and quick fault identification are essential.
Key Features & Specifications – Weidmuller DRM270730LT: 7760056076
| Feature | Details | Benefit |
|---|---|---|
| Product Type | Industrial plug-in relay (D-SERIES) | Easy integration into control panels and relay sockets |
| Coil Rated Voltage | 230 V AC | Direct compatibility with standard AC control circuits |
| Contact Configuration | 2 changeover (2 CO) contacts | Flexible switching for NO/NC control logic |
| Continuous Current | Up to 10 A | Reliable handling of control and moderate power loads |
| Contact Material | AgNi flash gold-plated | Stable switching performance and long contact life |
| Status Indication | Integrated red LED | Instant visual confirmation of relay operating state |
| Test Button | Lockable, momentary test button | Safe manual testing and faster commissioning |
| Switching Voltage | Up to 250 V AC | Suitable for a wide range of industrial applications |
| Switching Capacity | Up to 2500 VA (AC, resistive) | Supports demanding load conditions |
| Mechanical Service Life | Up to 20 million operations | Reduced maintenance and extended system uptime |
| Connection Type | Plug-in connection | Quick replacement and simplified wiring |
| Protection Degree | IP20 | Designed for enclosed control cabinet environments |
| Operating Temperature | −40 °C to +55 °C | Reliable operation in harsh industrial conditions |
| Compliance & Approvals | RoHS compliant, UL certified | Meets international safety and environmental standards |
| Dimensions (W × H × D) | 21 × 27.4 × 35.7 mm | Compact form factor for space-efficient panel design |
Download Weidmuller DRM270730LT (7760056076) Datasheet
Commercial Information – Weidmuller DRM270730LT
| Commercial Data | Details |
|---|---|
| EAN Number | 4032248855797 |
| Net Weight | 30.71 g |
The Applications
1. Reliable PLC Interface for Machine Control Panels
In machine automation systems, the DRM270730LT is commonly used as an interface relay between PLC outputs and higher-power field devices. The 230 V AC coil allows direct connection to standard control voltages, while the 2 changeover contacts provide flexible logic for normally open or normally closed switching. The integrated status LED gives maintenance engineers immediate feedback on output signals, reducing diagnostic time during faults. The test button enables manual activation without forcing PLC logic, which is especially valuable during commissioning, troubleshooting, or machine upgrades where safe verification of wiring and actuator response is required.
2. HVAC and Building Automation Switching
In HVAC and building management systems, the DRM270730LT is used to control fans, pumps, heaters, and valves from centralized controllers. Its stable contact material ensures consistent switching of inductive and resistive loads over long operating cycles. The compact relay size allows high channel density inside control cabinets, which is critical in building automation panels. The visual LED indication helps facility technicians quickly identify active circuits, while the manual test function supports functional checks during maintenance windows, minimizing downtime and ensuring smooth operation of climate control systems.
3. Power Distribution and Load Control Circuits
The DRM270730LT is well suited for auxiliary switching tasks in power distribution panels, such as controlling contactors, alarms, or signaling circuits. Its high switching capacity and robust electrical isolation support safe separation between control and load sides. The relay’s fast response time ensures precise switching, even in applications with frequent state changes. During installation and service, the test button allows technicians to validate downstream wiring and load behavior without energizing the entire system, improving safety and reducing the risk of costly wiring errors.
4. Industrial Process Monitoring and Alarm Systems
In industrial process environments, the DRM270730LT is often deployed in alarm and monitoring circuits for temperature, pressure, or level control systems. The dual changeover contacts allow one relay to simultaneously trigger visual indicators and audible alarms or send feedback signals to supervisory systems. The integrated LED provides instant confirmation of alarm activation, which is essential in noisy or visually complex environments. With a wide operating temperature range and long mechanical life, the relay delivers dependable performance in continuous monitoring applications where reliability and clear status indication are critical.