Slim Form Factor
6 mm and 12 mm interface relays save panel space while offering LED status and removable relays.
Control Relays & Monitoring
Interface relays, timing modules, and monitoring relays engineered for modern PLC and machine control systems.
WEG relays bridge field devices and automation controllers with slim DIN-rail modules, pluggable sockets, and integrated indicators. Combine timing functions, voltage monitoring, and IO expansion to build reliable control logic without sacrificing cabinet space.
Key Differentiators
Pluggable Architecture
Socket-based relays allow quick replacement and integrate surge suppression or freewheeling diodes.
Timing & Logic Functions
RTW timing relays cover on-delay, off-delay, star-delta, and multifunction timing with wide voltage ranges.
Monitoring Intelligence
Voltage, current, and phase monitoring relays deliver early warning signals for maintenance planning.
Relay & Monitoring Portfolio
Interface Relays
- 6 mm pluggable relays with screw or spring cage terminals.
- Integrated LED indication and test buttons for troubleshooting.
- Relay versions rated up to 10 A with gold-plated contacts for low-level signals.
- Relay bases supporting commoning jumpers and PLC wiring harnesses.
Timing & Logic Relays
- RTW timers with universal 24–240 VAC/DC input ranges.
- Multifunction timing (on-delay, off-delay, pulse, cyclic) with selectable ranges from milliseconds to hours.
- Star-delta starters and motor control logic built into compact modules.
- Plug-in sockets with mechanical indicators and locking clips.
Monitoring Relays
- Phase sequence, imbalance, and phase loss monitoring for three-phase systems.
- Voltage and current monitoring with adjustable thresholds and delay timers.
- Level, temperature, and pump control relays for industrial processes.
- Analog signal converters and isolation relays for PLC integration.
Relay Families & Modules
RW17 Interface Relays
6 mm and 12 mm pluggable relays rated up to 10 A with visual indication.
- Removable relays with gold-plated contacts for low-level switching.
- Sockets offer screw or spring terminals plus cross-connection jumpers.
- Integrated suppression diodes and test buttons expedite maintenance.
RTW Multifunction Timers
Universal timing relays with eight selectable functions and wide supply ranges.
- 24–240 VAC/DC supply with selectable time ranges from milliseconds to hours.
- Star-delta, pulse, on-delay, off-delay, and cyclic operation in one module.
- Front potentiometers and DIP switches simplify setup on the shop floor.
RW Monitoring Modules
Phase, voltage, and current monitoring relays that protect motors and processes.
- Detect phase loss, reverse rotation, undervoltage, and overvoltage conditions.
- Adjustable trip thresholds with delay timers to avoid nuisance alarms.
- Relay outputs interface directly with PLC inputs or annunciation circuits.
Relay & Monitoring Specifications
| Module | Nominal Range | Functions | Integration Notes |
|---|---|---|---|
| RW17 Interface Relays | Coil: 12–240 VAC/DC Contacts: 6 or 10 A |
SPDT/DPDT relay outputs with LED indication | 6 mm footprint saves space and supports plug-in jumpers for PLC wiring |
| RTW Multifunction Timers | Supply: 24–240 VAC/DC Time range: 0.1 s–100 h |
8 selectable timing modes with 1 or 2 changeover contacts | Front selector simplifies adjustment during commissioning and service |
| RW Voltage/Phase Monitoring | 208–480 VAC three-phase 24–240 VAC/DC control supply |
Phase loss, reverse phase, undervoltage, asymmetry | Two SPDT outputs with adjustable delay for integration into safety or PLC inputs |
| Analog Signal Converters | Input: 0–10 V / 4–20 mA Output: isolated 0–10 V / 4–20 mA |
Linear scaling, isolation, and filtering | Ideal for bridging sensors to PLC analog cards while eliminating ground loops |
Applications We Support
PLC I/O Expansion
Interface relays bridge PLC outputs to solenoids, contactors, and pilot lights with minimal wiring.
Machine Timing Sequences
Deploy RTW timers for conveyor indexing, pump alternation, and star-delta motor sequences.
Pump & Level Control
Monitoring relays manage tank levels, dry-run protection, and pump alternation with adjustable setpoints.
Predictive Maintenance
Voltage and current monitoring relays provide early warnings for bearing wear, phase imbalance, and overload conditions.
Relay Integration Services
I/O Mapping Workshops
We translate device lists into relay panels with terminal assignments and wiring diagrams.
Sequence Development
Our engineers create timing charts and logic narratives aligned with RTW timers and PLC programs.
Factory Acceptance Testing
Receive FAT checklists, test documentation, and onsite support for relay panels.
Deep Dive: RTW Relays & Timers
Visit the RTW relay page to compare plug-in, slim, and monitoring relays while accessing wiring deliverables crafted for PLC integration.
- Contact form and coil range summary for RTW17, RTW33, RTW-T, and monitoring relays.
- Socket and jumper accessories mapped to control cabinet marshalling best practices.
- Integration guidance linking relays to PLC500 or CLIC PLC projects.
Highlights
- Selection guide table outlining contacts, coil options, and feature sets.
- Bundled solutions for PLC I/O cabinets, motor starter interlocks, and monitoring suites.
- Integration session request connecting your team with our automation engineers.
Documentation & Application Notes
- Relay and timer catalog with wiring diagrams and pinouts.
- Monitoring relay selection guide by voltage, current, and sensing function.
- Sample PLC ladder logic for pump alternation and alarm sequencing.
- Control cabinet wiring examples featuring pluggable relays and jumpers.
Integration Support
Gross Automation engineers map relay signals to PLC500 and CLIC controllers, provide FAT documentation, and ensure diagnostic tags are available for HMIs and SCADA.
Plan Your PanelDesign Reliable Control Logic
Send us your I/O list or sequence requirements and we will specify the relays, timers, and monitoring modules that fit.
Talk with an Engineer