Giovenzana Limit Switches

Giovenzana limit switches are the best that the could offer in terms of technology and performance. They satisfy the most various needs by covering application fields in the automation sector, lifts and general machinery. NC Contacts with positive opening and different contact combinations, quick switch, slow or overlapping.

Kronenberg Interlocks and Switches

Kronenberg offers door locks in various designs for a wide variety of applications and optionally with integrated monitoring of the emergency release according to EN 81-21.

An extensive range of accessories complements the respective standard devices for single and double-leaf doors.

The quality and innovation of the products made by Kronenberg GmbH one of the leading suppliers of switches in elevator industry.

Key Features:

• Robust fine silver contacts guarantee safe and reliable contact making
• Maintenance-free due to long-life lubricants
• Extensive range of accessories
• Large diversity of variants
• Quiet functioning

Dewhurst Gatelocks VL10, VL20 & VL30

For use on lift landings, Dewhurst gate locks are robustly designed dual-contact locks, with pre-locking features. The VL10/11/20 and VL21 are use with collapsible gates or sliding doors; the VL30/31 with single swing doors. The gate locks are used in conjunction with a suitable retiring ramp (such as the Dewhurst Type FR21) and are adaptable for either right-hand or left-hand operation.

Key Features:

• Available from stock (left or right-hand options)
• Robustly designed dual-contact lock
• The VL10/20/30 locks now comply with the requirements of BS EN81-20:2014 & BS EN81-50:2014 as per Lift Directive 2014/33/EU for Landing Door Locking Devices
• IP Rating: IP20
• Can be used with the Dewhurst FR21 Retiring Ramp

Dewhurst VC40 Limit Switch

The rugged, low cost VC40A switch is used with a suitable operating ramp, to limit the travel of electric lifts and skiphoists etc. requiring accurate positioning at low speeds. It is supplied with normally-closed contacts and an earth safety screen.

Key Features:

• Ideal for low speed final limit switch
• 1 normally close (1N/C)Contact rating 5A @ 240Vac or 2A @ 240Vdc
• Meets EN81-1 1998
• CSA and other recognised standards
• Available from stock
• Rugged, low cost switch

Dewhurst VC50 Limit Switch

This rugged, competitively priced VC50 switch is used with a suitable operating ramp to limit the travels of electric lifts and ship hoists. It is supplied with one normally open and one normally closed contact.

Key Features:

• Ideal for final limit switch or slowing switch
• 1 normally close and 1 normally open contact (1N/C+1N/O)
• Contact rating 3A @ 240Vac or 0.5A @ 240Vdc
• Available from stock
• Rugged, low cost switch

Dewhurst EM21 Proximity Switch

The EM21 is designed to provide car position signals in the control of electric and hydraulic lifts and elevators. It is a rugged and heavy duty switch, small enough to fit within the overall depth of standard T guides. The EM21 is rated to IP32.

Switch rating:

• 10 Watts @250Vdc (non-inductive)
• 10VA @240Vac RMSmaximun current 1A @ 250V
• Provides car position signals in the control of electric and hydraulic lifts
• Rugged and heavy duty switch

Key Features:

• Provides car position signals in the control of electric and hydraulic lifts
• Rugged and heavy duty switch
• Switch rating: 10 Watts @250Vdc (non-inductive) and 10VA @240Vac RMSmaximun current 1A @ 250V
• Life expectancy >12M operations
• Repeat accuracy: 1.6mm in 10M operations
• Speed range: 0.01m/sec to 2.5m/sec or 2ft/min to 500ft/mim 

Dewhurst Car Gate Switch

CGS is for incorporation in the interlocking circuits of collapsible gates or sliding doors of lift cars.

Key Features:

• For incorporation in the interlocking circuits of collapsible gates or sliding doors of lift cars
• Meets EN81-1 1998
• 1 normally open contact (1NO)
• Contact rating 2A @240Vac

Dewhurst SWT Limit Switch

This geared limit switch is for use in light and medium-duty applications where it is necessary to limit reciprocating motion. The point at which the switch operates is precisely and easily adjustable by means of a special micro setting device.

Available versions:

• Left-hand, gear ratio 36:1 001003-020000
• Right-hand, gear ratio 36:1 001003-010000
• Right-hand, gear ratio 115:1 001003-030000

Dewhurst VF20 (Coffin) Safety Switch

The VF20, or Coffin Safety Switch is designed to be incorporated in pilot interlocking and safety circuits of control equipment. Contact ratings available as 200Watt max @ 240Vdc 2A (non-inductive), 200Watt max @240Vdc 1A (inductive) or12KVA max 440Vac RMS 5A max.

Key Features:

• Wide range of applications
• Silver-to-silver contacts
• Positive break (safety contact)
  

Dewhurst FR21 Retiring Cams

FR21 is designed to prevent landing doors or gates being snatched open whilst the lift car is passing through a LOCK zone at intermediate floors. Used in Dewhurst prelocking lift systems it also ensures that the landing door mechanism has functioned correctly before the car is allowed to move away.

Key Features:

• Robustly designed
• Fabricated steel ramp
• Designed to work with Dewhurst VL gate lock range
• Wide range of coil voltages available
  

Kronenberg RKMO / EM17-18 Retiring Cams

Retiring cams are designed to prevent landing doors or gates being snatched open whilst the lift car is passing through a LOCK zone at intermediate floors.
Both motorized and electromagnetic retiring cams suitable for various AC/DC operation voltages are available for a wide variety of applications.

Key Features:

• High actuation force
• Energy-Saving Due To The Low Current Requirement
• Low Noise
• All Steel Parts Galvanized
• Automatic Switchover To Reduced Holding Current
• Robust And Precise