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LOCKABLE SWITCH in a box with 1 to 3 key slots from 5 to 215 KW
Mechanical or electromechanical blockage of power circuits in the open position.
It has one blocking or interlocking latch that can release from 1 to 3 keys.
Protection: IP 55
Options: ADF; 4 poles - 6 poles; Timer; Blockage in the open position; Advance action auxiliary contacts upon request.
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Safety Switch STA
The robust metal safety switch STA is dimension-compatible with the proven EUCHNER safety switches TP and STP in plastic housings. Due to its die-cast aluminum housing and its high degree of protection IP 67, the switch can withstand even extreme ambient conditions. Like the switches TP and STP, the safety switch STA also offers a guard locking and a guard locking monitoring. A great variety of switching elements is available. The contacts can switch a minimum current of 1 mA. Therefore the safety switch STA is suitable for use in safe control systems.
Features
Robust design
3 cable entries
High degree of protection IP 67
LED upon request
AS-Interface version upon request
BG approval (pending)
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Application:
Safety switches with separate actuator are suitable for sliding, hinged and particularly removable safety guards, which need to be closed to ensure the necessary operational security. They are also suitable for fitting on profile sections and existing equipment.
In combination with safety control modules all safety switches with class 2 shown in this chapter achieve Control Category 3 or 4 to EN 954-1.
Design and mode of operation:
On the safety switches with class 2, the switching element is not physically connected to the actuator but functionally brought together or separated for switching. When the guarding device is opened, the actuator is separated from the base unit. In the process, NC contacts are positively opened and NO contacts closed.
Enclosure rating of all the safety switches is IP 67. The safety switches can be fitted in any desired mounting position.
Schmersal make both standard and AS-i Safety at Work safety switches with separate actuator.
Or for the standard models click below
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Guardian Line Heavy Duty - Stainless Steel - Type GLHL/R-SS
The GLHL/R-SS is a robust Heavy Duty Safety Rope Pull switch designed to protect long conveyor lengths were protection is required up to 125m using two switches or up to 100m using a single switch. The Stainless Steel 316 housings are designed specifically to withstand the tough environments found in the Food and Pharmaceutical industries. They will survive chemical and detergent washdown by providing all stainless steel parts and robust IP67 sealing by using integral bellows and gaskets. They can be used to compliment the GLHD-SS versions at each end of the rope span
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Ratings 25 - 125A three and four pole
Comply with IEC 947-3 AC23 utilisation category
Disconnecting electrical equipment from the main
Visible indication of contacts status (when operation handle is in the 'OFF' position all contacts are open)
Red/Yellow emergency stop operating handle
Handles padlockable in the 'OFF' position
Front and rear mounting options
Special emergency stop switches with undervoltage release available
Enclosed versions available
Wide choice of accessories : terminal shrouds, black/grey operating handles, auxiliary contact blocks, fixed and switched neutral add-on contact poles, shaft extensions for greater panel depth operation
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Safely equipped for all cases
According to EN 292-2 (Machine safety), movable guards must be provided with safety switches. Protective door bolts for protective devices work in tandem with SICK safety switches. On deliberate opening of the protective device, the N/C contact of the safety switch is opened and the hazardous motion of the machine is brought to a standstill.
Developed for harsh industrial everyday use
SICK products easily withstand harsh conditions such as impacts and vibrations. Opening, closing and locking is reliably guaranteed over a long lifetime. SICK safety switches are available in plastic or metal versions.
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Pizzato Elettrica introduces in the market of switches for potentially explosive environments a range of products that can satisfy the requirements of all the users. There are different switch series available in conformity with the directive ATEX 94/9/CE in the categories M2, 2G, 2D plus the new categories 3G and 3D (zones 2 and 22) introduced with the new regulations.
The approved products include both the position switches and the safety switches with different contact blocks and actuators. To introduce these products on the market there’s a special brochure available which can be downloaded from the web-site www.pizzato.com.
Pizzato Elettrica is an established company with more than 20 years experience in the sectors of position switches and safety devices for machineries. The products are entirely planned and produced in Marostica - Italy in compliance with the standard ISO 9001 and they undergo the inspection by a third party for product conformity.
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Ex-Safety and Main Current Switches
CEAG safety switches can be protected against inadvertent switching on by our integrated locking facility for up to three padlocks in the OFF position.
To prevent manipulations, the enclosure covers cannot be opened in the locked position without destroying the enclosure itself.
All CEAG safety switches feature full AC-3 motor switching capacities and isolating properties according to EN 60947-4-1 with compulsory opening of the main current contacts; optional EMERGENCY STOP versions according to EN 60204-1 are also available.
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SAFETY CODED MAGNETIC SENSOR, SR series
Pizzato Elettrica extends its range of safety magnetic sensors by introducing the SR A series which distinguishes itself from the SR B series in the reduced dimensions.
Both series are devices studied to monitor protections and guards that, when linked to a safety module, can create a system up to safety category 4, according to EN 954-1. These products are composed by a magnetic field monitoring sensor, which is connected to the machine structure; and by a coded magnetic actuator, which has to be connected to the mobile guards. The sensor is manufactured to be activated only by the correct coded actuator and not through a common magnet.
Pizzato Elettrica safety sensors distinguish themselves by following main features:
- Insensitivity to dirt as totally sealed, making them especially proper to be used in the food-industry sector.
- Wide actuation zone, characteristic appreciated in the use of inaccurate protections or for protections that can change their mechanical characteristics through the time.
- Centering mark on the housing as a reference for the operating distances
- Possibility of connection in series more sensors also with mechanical switches.
- Actuation from two different directions.
- Available with cable or M8 integrated connector.
- Actuators with operating distance of 5mm or 8 mm.
The new sensor series complete the wide range of products that Pizzato Elettrica can offer in the machine safety field. For further information visit the web-site www.pizzato.com
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NEWS 2009
SAFETY SWITCHES HINGE-SHAPED, PALLADIO LINE
Pizzato Elettrica widens the own range of products making a new series of safety switches hinge-shaped named Palladio, where thanks to an aimed planning and a punctual analysis of the market requirements, safety and style are melted in one single product. The switch is completely integrated in the mechanical hinge, to result practically invisible to an inexpert eye: this guarantees a higher safety.
The assembly without visible screws and the pleasant line, make the switch perfectly integrated also with guards of modern design machinery.
In order to complete the offer it's available also the new variant of the safety switches hinge-shaped, Palladio line, HP AB, whose main features are:
- Version suitable for the direct assembling of glass plates or polycarbonate plates. The wider arm support and the spaced fixing points make installation easier, avoiding the developing of cracks when the holes are too close to the protection rim
- Version with working angle different from 0°
- Metal housing, cable output from bottom, from top or from back
- 4 integrated cable types available
- Versions with M12 connector
- Adjustable operating point, which allows the setting possibility for large guards
- Protection degree IP67
- 9 contact blocks available
- Additional hinge available with purely mechanical functions
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The FailSafe GuardSwitch is designed as a safety interlock to be attached to a machine's guard or door. Unlike a standard reed switch interlock, the circuit has been designed to have an "open" failure mode. If the main reed sticks closed when the guard opens, the in-line fuse will blow, opening the circuit. If the watchdog reed sticks closed when the guard closes, the in-line fuse will blow, opening the circuit. The circuit will draw up to 4.5A to blow the fuse in less than 200ms. Along with being FailSafe, all the 200 series switches have non-coded actuators.
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Position switches for high temperature
For more than 20 years Pizzato Elettrica has been producing one of the world most wide range of position switches, safety switches, microswitches, foot switches. Pizzato Elettrica products are usually used worldwide in different industrial sectors characterized by their reliability and their quality/price ratio.
Eventually the range of products in the survey sector has been growing covering very specialized sectors such as switches in conformity with ATEX directive and switches with electronic contacts.
Among the various new products 2007 Pizzato Elettrica has introduced a new series of position switches especially studied for high temperature application. These products are characterized by their long mechanical life in relation to the working temperature, that is up to 1 million operation cycles at +180°C.
A dedicated brochure on these new products is available on the website www.pizzato.com.
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NEWS 2009
MODULAR PREWIRED SWITCHES NA-NB-NF SERIES
Always consistent with its innovation and the company quality targets, Pizzato Elettrica introduces three new prewired switches series provided with innovative and unique characteristics.
The main features of these products are:
- Separation between the switch body and the wired connector, which allows the user to change a product in the field without having to completely remove the wires.
- 14 contact blocks available: these series contact blocks are versatile and compact. In the same space of the previous versions now it’s possible to have up to 4 different contacts, provided with positive opening.
- 35 actuators available, some of these were not available in the previous series: based on chosen actuator, many products variations are available.
- Single pieces of these products can be purchased separetely: this is advantageous to distributors of electrical material for stock flexibility and final customers for spare parts or new combinations.
- Metal housing (NA-NB) and polymer housing (NF), adjustable cable output.
- 3 (NA-NB) or 2 (NF) types of integrated connector cable.
- Protection degree IP67.
The new series support the FA-FB-FF series, which are currently present in the market, proposing in this way one of the widest products range in the position switches sector.
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Safety-/ position switches
Monitoring safe positions with LS-Titan
safety position switches From material handling systems to plastic injection moulding; from car washes to doors on trams: the position switches LS-Titan are used wherever there is exact positioning requirement.
The analog position switch with a voltage or current output also enables a range of new applications for the LS-Titan, where mechanical position detection could only provide insufficient information up to now – for example, detecting the position with opened flaps for flue gasses.
World innovation – the electronic position switch LSE-Titan®
electronic position switch The electronic position switch LSE has an operating point that can be set variably. Two fast and bounce-free PNP switch outputs enable high switching frequencies. They are protected against short-circuit and overload and are equipped with an abrupt switching behaviour. This guarantees a defined and reproducible operating point.
The actual operation point is in a range between 0.5 mm to 5.5 mm (supplied ex-works = 3 mm). The setting to the “new” operating point is performed as follows: The plunger must be moved from the “old” to the “new” operating position. Now the set button should be pressed for a duration of 1 sec. The LED now flashes with a higher pulse frequency and the new operation point is set retentively.
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sensors for cylinders
- 2- and 3-wire reed contact, electronic versions as well
- plug or cable connection
- LED indicator
- special designs on request
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HE1G grip switches are available with or without a built-in Emergency Stop switch, and were designed for use as "deadman" switches by second operators in robotic cells. The Off-On-Off functionality provides a high level of safety based on human behavioral studies which determine personnel may squeeze OR let go when presented with a panic situation.
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Safety Rope Pull switches
SR
Plastic housing Protection class IP67
Emergency stop switch gear
Integrated emergency stop push button
Quick mounting device for rope installation
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Safety switches FR series
Pizzato Elettrica switches of the FR series with separate actuator reach the 4th generation. These switches are ideal for gates, protections, carter and all different guards which protect dangerous parts of a machine. The stainless steel actuator is fixed to the mobile section of the protection in order that every time the protection is opened the actuator is pulled out of the switch. A particular mechanism assures the positive opening of the electrical contacts by the pulling out of the actuator. These switches are easy to install and can be applied to any type of protection (hinged, sliding or removable). Furthermore the possibility of operating the switch only with the specific actuator assures that the machine can start again only when the guard is closed.
Pizzato Elettrica switches of the FR series distinguish themselves for the following characteristics:
- Rotating heads: by unscrewing the fixing screw the head can be rotated in 90° steps.
- Not detachable heads: the head “93” is perfectly interchangeable and compatible with the previous head “92” but it has the advantage that it is not detachable from the body, nonetheless it can rotate in 90° steps (Pizzato Elettrica patent). Practically speaking the new head is safer because it’s not possible to damage it during the installation.
The FR series complements the range of products that Pizzato Elettrica can offer to its customers. For further information, please visit the website www.pizzato.com or ask for the relative documentation.
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Hinged machinery guards and covers as well as safety fence doors may be found in every type of industry. The Bernstein safety hinge switch SHS represents the integration of a safety switch in a load-bearing hinge for industrial applications.
The slim profile of the SHS allows the hinge to be readily mounted where space is constrained.
The operating angle is a full 180°, the switching point can be set between 0° and 180°.
The SHS hinge switch opens new doors with the safety contact mounted internally, inaccessible to the user and therefore providing excellent tamper protection.
2 SHS each with a forced disconnect safety contact allow safety category 4 systems to be configured subject to the required risk analysis and safety contact monitoring.
One or more SHS may be used dependent on the category of safety protection required.
Matching hinges without safety contacts are also available, allowing the style to be standardised for general use.
Connectors as well as fixed cable versions with axial and radial (rear) mounting are available.
An IP67 protection rating is sufficient for nearly all machine environments.
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Safety switches are used to detect the opening of machine guard doors, gates or panels and to prevent physical access to dangerous areas of the machine. Safety switches are designed to help deter tampering with either the internal machine controls or guards while in an unsafe condition.
All mechanical safety switches are equipped with positive opening contacts that open any normally closed contacts to assure machine shutdown when an unsafe condition is detected.
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Designed for applications where safety, high performance and continuity of service are essential. Featuring quick-make, quick-break mechanisms.
Features and Benefits
Wide, unobstructed gutter and removable interior make wire pulling quick and easy.
Direct-drive, quick-make, quick-break mechanism provides long life and positive ON/OFF indication .
Bright red handles are easy to see, easy to grip; donut shape on heavy duty and double throw safety switches is ideal for bookstick operation.
Positive 3-point mounting speeds installation, simplifies ganging in close quarters.
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The XA and XW series of Emergency Stop switches include a revolutionary new technology called "safe break action" that will change the way E-Stop switches are designed. This innovative concept provides greater levels of human safety and is the first of its kind in the world.
Conventional E-Stop switches are designed with spring pressure on the Normally Closed (NC) contacts, keeping them in the closed position and allowing the machine to operate. Improper installation or excessive force to the stop button in an emergency may break or dislodge a vital part, causing the spring loaded contact to stay closed. This situation renders the E-Stop incapable of stopping the machine and can lead to catastrophic events, personal injury and possible loss of life.
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SAFETY SWITCH WITH SEPARATE ACTUATOR FW SERIES
These safety switches are ideal to control gates, sliding doors and other guards protecting dangerous parts of machine. The stainless steel actuator is fastened to the moving part of the guard, so it is removed from the switch on every opening of the guard. The switch mechanism guarantees that removing the actuator forces the positive opening of the electrical contacts. Easy to install, these switches can be applied to any kind of protection (with hinge, sliding and removable ones). Besides, the possibility to actuate the switch only with its actuator guarantees that the machine can be restarted only when the guard has been closed.
- Polymer housing, three M20 or M16 knock out conduit entries
- Protection degree IP67
- 6 contact blocks available
- 8 stainless steel actuators available
- 30 N actuator extraction force versions
- Silver contacts gold plated versions
- Cylindrical or slotted fixing holes
- Cover with hinged opening and with only one fixing screw
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Bernstein presents the innovative safety switch SLK as a solution to safety applications in industrial automation. The SLK performs a slim and compact enclosure as well as a mounting acc. per EN 50041 standard. The outstanding feature is the availability of a multi-supply voltage version covering a range from 24 V DC up to 230 V AC. The new actuator head allows both, horizontal and vertical, actuation. Turning the actuator head by 4 x 90° makes it easy to fit the SLK safety switch to various movable guards. The SLK features two independent safety circuits which monitor the position of the movable guard and the condition of the interlocking. Both circuits carry combinations of up to two forced disconnected contacts each and thus achieve compatibility with different safety systems.
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Explosion Proof Switches - Type GLS-Ex - GLS-SS-Ex
Safety Switches with positively operated ATEX Eexd llC T6 certified explosion proof blocks.
Part No Type Pre-wired cables Contacts
142025 GLS-Ex 1 x 3m. 4 core 1NC 1 NO
142028 GLS-Ex 1 x 3m. 4 core 2NC
144025 GLS-SS-Ex 1 x 3m. 4 core 1NC 1 NO
144026 GLS-SS-Ex 1 x 3m. 4 core 2NC
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Explosion Proof Switches - Type GLES-Ex - GLES-SS-Es
Safety Switches with positively operated ATEX Eexd llC T6 certified explosion proof blocks.
Part No Type Pre-wired cables Contacts
146003 GLES-Ex 1 x 3m. 4 core 1NC 1 NO
146004 GLES-Ex 2 x 3m. 4 core 3NC 1 NC
146005 GLES-Ex 1 x 3m. 4 core 2NC
146006 GLES-Ex 2 x 3m. 4 core 2NC 2NO
147003 GLES-SS-Ex 1 x 3m. 4 core 1NC 1 NO
147004 GLES-SS-Ex 2 x 3m. 4 core 3NC 1 NC
147005 GLES-SS-Ex 1 x 3m. 4 core 2NC
147006 GLES-SS-Ex 2 x 3m. 4 core 2NC 2NO
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Emergency pull-wire switches
ZS 80
Metal enclosure
4 contacts
Position indicator and integrated emergency-stop push button
Wire length up to 75 m
Pretensioning force 100 N
Lever for release and position indication
Watertight collar
Wire pull and breakage function
Indicator lamp available
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Explosion proof switches are used wherever the ambient conditions are such that the presence of inflammable substances, oxygen and a source of ignition are to be anticipated simultaneously. The primary applications are to be found in the chemical and petro-chemical industries as well as paint lines. Protection against explosions is often also necessary where a large collection of line powder can develop such that a movement of air can lead to a spontaneous detonation. Examples include mills, wood processing and food processing industry.
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The installation switches are used for lighting installations. For greater clarity when the lighting fails, a phosphorescent strip is inlaid in the switch lever.
The switch position is shown unambiguously by the 90°C action. This is especially convenient if lights and switch are in different rooms.
Installation Switch Series 8030:
Explosion protection to CENELEC, IEC
For use in Zone 1 and Zone 2, Zone 21 and Zone 22
Degree of protection IP 65
Robust moulded plastic enclosure
Large switch lever with phosphorescent inlaid strip
Watertight Switch Series TEF 1239
For use in Marine application, Safe area
For use in harsh environments and adverse weather conditions
Solid brass execution
Easy mounting
Switch with extremely low lifecycle cost
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With most elevators the position of the elevator car is determined by magnetic switches. Here the elevator technology division of the Schmersal group offers an extensive program. In addition the assembly-friendly, contact-free USP system is at the disposal, with which the car position is determined over the running time of the ultrasonic signals in a special wire.
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