The innovative SIRIUS 3SE5 position switches are modern in design, and compact, modular and simple to connect. They save time and increase flexibility during installation of a whole range of switch variants. In principle it is possible to combine any enclosure with any operating mechanism, paying due consideration to the EN 50041 and EN 50047 standards where necessary.

Complete units

Popular versions of the position switches in standard enclosures are available as complete units.

3SE5 position switches with plastic and metal enclosures

Modular system

The 3SE5 series is the modular system comprising different sizes of the basic switch and an actuator which must be ordered separately. Thanks to the modular construction of the switch the user can select the right solution for his application from numerous versions and install it himself in a very short time.

An easy plug-in method enables fast replacement of the actuator heads.

Examples of selection options in the modular system

Design

All enclosure variants have an integrated chlorinated rubber diaphragm for high functional safety in cold and aggressive environments.

Enclosure sizes

The 3SE5 switches are available in five different enclosure sizes with 2 or 3 contacts and with the XL enclosure:

• Open-type position switches IP20 or IP10
• Plastic enclosures according to EN 50047, 31 mm wide, IP65, 1 cable entry
• Metal enclosure according to EN 50047, 31 mm wide, IP66/IP67, 1 cable entry
• Plastic and metal enclosures according to EN 50041, 40 mm wide, IP66/IP67, 1 cable entry
• Plastic enclosure, 50 mm wide, IP66/IP67, 2 cable entries
• Metal enclosure, 56 mm wide, IP66/IP67, 3 cable entries
• XL metal enclosure with 4 to 6 contacts, 56 mm wide, IP66/IP67, 3 cable entries

Enclosure versions

Various basic switches can be selected for the enclosures of the 3SE5 series:

• With contact blocks with two or three contacts (screw terminals) designed as slow-action or snap-action contacts; the slow-action contacts also with make-before-break
• Optional LED status display
• With mounted four or five-pole M12 connector socket (available for the wide enclosures as an accessory for self-assembly)
• With 6-pole connector socket + PE on the metal enclosures
• With increased corrosion protection (ICP)
• Versions for operating temperatures up to –40 °C
• AS-Interface version with integrated ASIsafe electronics for all enclosure designs, see "SIRIUS 3SF1 mechanical safety switches for AS-Interface"

Actuator variants

All operating mechanisms can be rotated around the axis in increments of 22.5°. The following actuator variants are available:

• Standard, rounded and roller plungers
• Roller levers and angular roller levers
• Spring rod
• Twist levers and rod levers with twist actuator
• Fork levers with twist actuator

The actuator rollers are available with various materials and diameters.

Twist actuator for twist levers and rod levers, with setting of switching direction to right, left or right/left (standard for all twist lever actuators except fork levers)

Version of the cover

The mechanical position switches have a turquoise cover, and the mechanical safety switches have a yellow cover.

If requested, the switches can be supplied from the factory with a yellow cover. The cover does not have any effect on the way the switch works. Both versions can be used in safety applications.

Many different contact types

Exchangeable two and three-pole contact blocks for all enclosure sizes

The three-pole contact block with snap-action or slow-action contacts is available for all enclosure forms. The same installation space is required as for a two-pole block. The version with 1 NO + 2 NC offers, for example, more safety through redundant shutdowns (2 NC contacts) with simultaneous signaling (NO contact). The three-pole blocks are also available with make-before-break and with 2 NO + 1 NC.

Contact reliability

The contact blocks ensure an extremely high contact stability. This applies even when the devices are switching low voltages and currents, e. g. 1 mA at 5 V DC.

Positive opening (>)

The NC contacts of the switch are forced open mechanically, positively-driven and reliably by the plunger. This is referred to as "positive opening".

Mounting

Easy plug-in method – for fast replacement of the actuator heads

Position switch, 31 mm wide, replace head

• Open cover (1)
• Actuate locking lever (2)
• Replace the head (can be rotated 16 x 22.5°) (3)
• Lock and close the cover (4)

Quick-connect technology

For plastic enclosure with a width of 31 mm

These position switches can be wired quickly and easily as an added customer benefit. The connecting cable is first connected to the terminals of the contact block and then guided through a slit into the cable gland opening. The time saved through this new connection method is approx. 20 to 25 %.

A cable gland with seal must be used with the quick-connect method.

Optional LED indicators

LED indicators are available for all enclosure sizes except for XL. The enclosures are supplied with an LED signaling indicator (1 ? green + 1 ? yellow).
This is the first time that optical signaling equipment is also available for small standard enclosures according to EN 50047. The LEDs are implemented in 24 V DC and
230 V AC.

Article No. scheme

Note:

The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data.