Lovato’s TMST time relay is a modular solution for star-delta control on DIN rail. The TMST SKU features straightforward setup via potentiometers, supporting dependable sequencing without complex programming. Built for panels, it delivers an Ith (IEC) of 8 A and a rated impulse withstand voltage Uimp of 4 kV, helping ensure robust performance in demanding industrial environments. Engineered to endure, this Lovato time relay offers a mechanical life of 30,000,000 cycles and reliable operation from -20 to + 60 °C, with storage from -30 to + 80 °C. Conformity to IEC/EN 61812-1, UL508 and CSA C22.2 n°14 supports acceptance in control panels, while a compact 90 g build aids installation and handling in space-constrained enclosures.
£112.47
The Lovato Electric TMST is a specialised star-delta starting time relay designed for automatic motor starting sequences in industrial control applications. Featuring multiscale timing, multivoltage operation, potentiometer adjustment, and modular DIN rail mounting, the TMST provides reliable control of star-to-delta motor transition timing for three-phase induction motors.
The Lovato TMST is an electronic timer relay developed for star-delta starter applications. It provides separate timing adjustments for motor starting and transition delay, allowing smooth switching between star and delta connections. The unit supports 24-48VDC and 24-240VAC supply voltages and is designed for compact modular installation on standard 35mm DIN rails.
| Specification | Details |
|---|---|
| Brand | Lovato Electric |
| Part Number | TMST |
| Product Type | Time Relay |
| Function | Star-Delta Starting |
| Supply Voltage | 24-48VDC / 24-240VAC |
| Frequency | 50/60Hz |
| Starting Time Range | 0.1s to 10min |
| Transition Time Range | 20ms to 300ms |
| Programming Method | Potentiometers |
| Relay Outputs | 2 Normally Open Contacts |
| Contact Rating | 8A |
| Mounting Type | 35mm DIN Rail Mounting |
| Terminal Type | Screw Terminals |
| Module Width | 17.5 mm |
| Dimensions | 17.5 x 104.7 x 64.9 mm |
| Operating Temperature | -20°C to +60°C |
| Protection Rating | IP40 Front / IP20 Terminals |
| Weight | 90 g |
| EAN | 8013975147146 |
The Lovato TMST provides a dependable solution for reducing motor starting current through controlled star-delta transitions. Its adjustable timing, wide voltage compatibility, compact DIN rail format, and dedicated motor starting function make it suitable for industrial motor control applications requiring precise switching sequences.
The Lovato TMST is used for controlling star-delta motor starting sequences by managing the timing between star connection starting and delta connection operation.
The Lovato TMST supports 24-48VDC and 24-240VAC supply voltages.
The relay provides adjustable star starting timing from 0.1 seconds to 10 minutes, with adjustable transition timing between star and delta operation.
The Lovato TMST is designed for modular installation on a standard 35mm DIN rail inside electrical control panels.
| HS Code | 91070000 |
|---|
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...