Rotary Switches – T Range

Flexible for all switching functions

The modular system is particularly flexible and enables a wide range of different combinations and types.

T rotary switches are available for rated uninterrupted currents from 10A to 315A in three basic designs: flush mounting (front fixing), centre mounting (base fixing with coupling) and surface mounting (insulated enclosure).

Each of these basic forms offers several variants. Mounting in central control or distribution panels and as main switches or main switches used as Emergency-Stop devices to IEC/EN 60 204-1, VDE 0113 Part 1.

T rotary switches can be used in a wide range of applications, as described below.

Auxiliary circuit control switches

T rotary switches for auxiliary circuits simplify command functions at central locations. For example, a particular program can be selected from a control station, thus saving time and providing a clear central overview of the production process.

Coding, step, series and manual/automatic switches are common applications for auxiliary-circuit control switches. T0 rotary switches and TM mini rotary switches are particularly suitable for this purpose, with space-saving installation.

With up to 22 contacts and 12 switch positions, the T0 handles a wide range of switching tasks. The small dimensions of the TM make it ideally suitable for use in conjunction with the RMQ Titan command and signalling range.

Maintenance, repair and safety switches

A number of padlocks may be fitted in the Off position. Disconnection is therefore visible, and the equipment cannot be switched on again.

On-Off switches

T rotary switches and P switch-disconnectors provide reliable service for lighting and heating systems, motors etc. in accordance with utilisation category AC-3, as well as in applications requiring a high switching capacity and switching frequency.

Other typical applications for T rotary switches include:

Star-delta motor starting circuits with or without reversing and with or without a contactor interlock.
Motor speed variation (tapped windings) for two, three or four speeds, with or without reversing.
Switching a load between two power systems, or connecting one power system to two loads using the same switch.
Three-phase motor starting on a single-phase power system with a capacitor.
Stepped switching for any required number of loads, with or without a zero position.
Ammeter switching for measurement directly or via current transformers.

Brochure: T Rotary Switches and P Switch-Disconnectors (732KB)

This page last updated: 22 September 2007