i-select Rotary Switches
Hand operated rotary switches provide the most cost effective method of solving complex contact switching functions. However, every item of electrical equipment needs a method of disconnecting it safely from the supply, and here again, the rotary switch with positive break contacts, performs that function effectively.
Craig & Derricott rotary switches are supplied in 6A, 16A, 20A & 40A ratings:-Please click on the following link to download the i-select catalogue:- 'i-select' short form catalogue (Interactive)
6A/16A Rotary Switches
The R6 & R16 rotary switches are built upon a common frame, the R16 deriving its increased rating from larger contacts. These items lend themselves to the more common rotary switch functions such as 'general control' as well as 'Ammeter and Voltmeter' selectors. Due to their small size they are also ideal for the specialist OEM user.
20A Rotary Switches
The 20A 'Minirotary' switch is one of the most versatile items in the rotary switch families. Its design permits the addition of a wide range of accessories. The switch is well proven in arduous conditions, being particularly favoured for Rail applications with its ability to withstand the required 'shock & vibration' tests.
Control panel manufacturers favour the Minirotary switch for its rear facing terminals which can be useful in terminating in confined spaces.
40A Rotary Switches
The R40 rotary switch represents the ultimate in versatility. To this frame size we have added the facility of both 30 deg & 60 deg indexing.
With excellent switching performance and a high level of mechanical strength, the R40 is the choice for isolation duties.
There are a vast array of configurations available to the end user within the ranges and so to assist in selecting the correct item we offer below selections from our most popular arrangements. Each section contains a link to a datasheet which shows each item in greater detail and shows all of the accessories and options available.
Should you require a rotary switch designed to your own specification then you can either download our 'Custom Switch design template' on which you can show your requirements in detail, or call to talk to one of our experienced designers who will guide you through the design process.
During 2010 Craig & Derricott has made several new ranges of rotary switches available to the UK market. A 'short form' catalogue has been prepared to introduce the various features, ratings and options which are now available.
Simple Off/On switches can become quite complex when additional contacts are required for performing auxiliary functions. So it you should ever require say a 9 pole rotary switch with 3 N/O and 4 N/C contacts, one of each being gold plated, then the rotary switch is the only logical solution. In this section we show the basic building blocks only; so if you need a standard format it's here, but ...
Changeover switching can be as simple as providing an alternative feed to a device, but there are times when an 'Off' position may be required to enable maintenance to take place safely. Add to this various actuators, some of which may be lockable and the end item can be quite specific. In this section we show the basic building blocks only; so if you need a standard format it's here, but please ...
The title 'Multi position Selectors' covers a wide range of switch sequences, and in this section you will find switches from 3 to 12 positions. Although there are a number of variations shown, there are always going to be the situations where your precise requirement is 'a little different' to that shown. This is not a problem, we have been designing special sequence switches for more than 50 ...
Panel metering switches fall generally into two groups - Ammeter and Voltmeter switches. Ammeter switches can be directly connected, but more generally are fed from current transformers (C/T's). When C/T fed, the switch must have make-before-break contacts when switching between phases, as an open circuit could generate dangerously high voltages. We show some standard sequences in this data sheet, ...
Motor Control Switches
Simple Forward & Reverse switches with an isolation position are fairly common items, however there are numerous and complex ways motors can be wound, and matching control and switching arrangements can become very specific.There is not room in this document to show even the most common of these arrangements, we would therefore advise you to contact our technical sales for advise. ...
Cumulative switches provide a simple and effective way of adding functions or loads sequentially. They can be used in control circuits to ensure successive functions are added in a specific order, or more generally for adding successive loads such as heating or lighting. This document shows a selection of standard formats, but if your requirement is somewhat different, then give our technical ...
There are numerous applications for 'Heater' control switches. From the simple water heater, to the moulding injection tool heater control circuits. In most cases the selection of 'Low, Medium & High' levels describes the sequence of series & parallel heater connections; however if your application requires a more complex connection arrangement, or additional increments, then our dedicated ...
The number of construction options available with rotary switches is vast. In this section we list cvarious options that are available but require incorporating in the product when it is assembled. If you require any special features added that would make your switch selection ideal for your application, then please contact our technical slaes team who will be there to discuss your specific ...
With such a comprehensive range of rotary switches it's only when an equally extensive accessory selection is added that the full potential is released. Alternative actuators/locking handles can upgrade a simple switch into an integral part of a complex switching plan and a comprehensive selection is provided to suit most situations. Every switch will need some method of indicating its position; ...