Mercurywetted contact relays in these relays, the electrical. Dry contact and mechanical relay output modules typefunction grayhill part number miniature, normally open 70modc5r 70modc24r standard, normally open 70odc5r 70oac5rly 70odc24r. Cutlerhammer molded case circuit breakers 25 15100. Computer components has long been recognized as a major supplier of mercury wetted relays to the industrial, commercial and defense markets. Low and stable contact resistance during life, no bounce. As the voltage on an unoperated relay is increased, the value at or. The pickering series 100 is a complete range of singlein line sil reed relays primarily intended for direct drive from 4000b cmos or nmos logic or similar low current sources. Mercurywetted contact relay hg1002 amateurd clare, c. Cp clare mercurywetted contact relay hgjm51111p00 moose. The voltage pulse will activate the relay to pullin or release the contacts. The only major weakness of a mercury wetted contact relay is the necessity to mount the relay within 30 of a vertical position, due to its position sensitivity. Mercury relays, mercury contactor, high voltage relay and. This module provides high voltage carrying capability as well as very low and consistent contact resistance.
Miniature reed relays with mercury wetted contacts. The relay is now trying to hold its present state contacts open or closed. Mercury relays and tilt switches safety data sheet according to the federal final rule of hazard communication revised on 2012 hazcom 2012. This module provides high voltage carrying capability as well as very. The mercury is provided by a small reservoir which blade actuation tends to pump up a grooved surface on the reed blade. For example, some contact materials require an arc to keep them free of sulfidation. Abb library is a web tool for searching for documents related to abb products and services. Auxiliary relay small size high degree of reliability, even when it has been idle for a long time the magnetic system comprises the fixed core andmechanical operation indicator high contact rating 2 or. Recent listings manufacturer directory get instant insight into. Mercury relay disposal info 3 american ultraviolet. Msds mercury relays, mercury contactor, high voltage. Both dry and mercury wetted switches are available in a wide range of configurations including coaxial types for rf up to 5ghz, or high speed.
The 4511 has been designed with several exceptional features that make it stand out from competitive products. For high speed use, the mercurywetted relay is used instead. The series 200 is a complete range of surface mount reed relays. Rio1s manual relay inputoutput transformerbalanced. Metering isolation relays advanced surge protection for metering installations. Table 1 illustrates that the amount of mercury used in individual switches and relays varies widely. Drycontact 250v a maximum connections 3, 5 to a dedicated voltage. Dry and mercury wetted switches are available with the same pin. Institute of physics publishing reports on progress in physics rep. Open frame, encapsulated and axial lead packages are. High sensitivity reed relays pickering electronics. Mercury reed relays there is a class of reed relays that has been historically very popular where the reed contacts include mercury that provides the electrical contact between the blades. The average half time for clearance of mercuryfor different parts of the human body is as follows.
Prolonged contact may lead to ulceration of the skin. Some types of reed relay use mercury wetted contacts, consequently reed relays that use plated contacts are often referred to as dry reed relays. Cutlerhammer molded case circuit breakers 27 15100 amperes series ct gframe type ghbgfep bolton panelboard 30ma industrial ground fault circuit protectors 1560 amperes, 277 volt, 5060 hz. Relay contacts are available in a variety of metals and alloys, sizes and styles. The mercury films are stretchable, there is no contact bounce and because it is a mercury contact, the contact resistance is very low and idea for low level switching. Available in voltage ratings ranging from 120 v to 240 v with hermetically sealed contacts in inert gas atmosphere. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. A mercury relay mercury displacement relay, mercury contactor is a relay that uses mercury as the switching element. Since this modules relay must receive a mute signal from a higher priority module to change. Series 86, 87 switch ratings the contact ratings for each switch type are shown below.
Would anyone like a type hg2a1034 mercury wetted contact relay. Hella relay terminals are designed to easily mate with hella relay connector blocks or directly to hella relays. To determine the effect of these regulations on your location, contact your states environmentalhazardous material organization. While there are several variations of the mercury wetted contact relay on the market, the basic contact element has essential concepts in common.
Company contact information upcoming events news let us know what you think. Mercury contactor relay 3 pole, normally open 60 80 amp 120v ac coil ko. How reed relays work the item reed relay covers dry reed relays and mercurywetted contact relays, all of which use hermetically sealed reed switches. A mercury relay is a relay that uses mercury as the switching element. Rather than serving to prevent malfunctions, the forcibly guided contact structure enables another. The latching isolation relay modules are designed utilizing mercurywetted relays to provide the required equipment isolation. It consists of a set of input terminals for a single or. A mercurywetted reed contact relay comprising at least two reed means having coacting ends contained in a glass capsule. Model 4511 32 spdt mercury wetted relays product description the 4511 provides 32 spdt mercury wetted relay channels. Transdata isolation relays provide surge protection for energy metering installations by electrically isolating the. What links here related changes upload file special pages permanent link page information. They are used as highcurrent switches or contactors, where contact erosion from.
Dry contact may mean any of the following in electronics. Pickering series 86, 87 high sensitivity reed relays dry and mercury wetted features z encapsulated in a plastic package with internal mumetal magnetic screen z wide range of switch configurations z dry. Mercurywetted relays are fast in operation and have relatively good load carrying capacity and long life. Comus international started out as a manufacturer of glass mercury tiltswitches for residential and. I acquired this a number of years ago when i had the chance to salvage electronics from the basement of my friend brians deceased. Do not use silicon or siliconcontaining product or materials near relays.
A mercurywetted contact capsule used in relays or switch assemblies whose contacts are hermetically sealed in a chosen environment and includes a flat, spiral spring armature. Model 4511 32 spdt mercury wetted relays gigatronics. Pickering series 86, 87 high sensitivity reed relays. Relay priority level the relay setting determines what priority level and above will cause the relay to energize. They are used as highcurrent switches or contactors, where contact erosion. Comus international was founded in june 1978 by our chairman and ceo, robert p. Relays were used extensively in telephone exchanges and early computers to perform logical. Our mercury wetted relays are double sealed, consisting. Mdi relays are hermetically sealed with high quality glass to metal seals and the stainless steel tube is. The solaredge smart energy relay referred to as the device is a zigbee wireless load management. Brentek dry relay output modules have zero offstate leakage current so they are able to directly control solid state devices and other loads. Dry contact can refer to a secondary set of contacts of a relay circuit which.
The kdn relay is used in applications where the contacts are set and reset with permanent power or impulses. Models available with or without a lockingtype photo control receptacle mounted to the top of the relay enclosure. The 4511 provides 32 spdt mercury wetted relay channels. Our relays are applied mainly in industrial and power automation systems, in signaling and protection. The mercury films are reestablished at each contact closure and contact erosion is eliminated. Dry contact and mechanical relay output modules typefunction grayhill part number miniature, normally open 70modc5r 70modc24r standard, normally open 70odc5r 70odc24r.
True dry contact switching of acdc large and small signals. Each input is protected with mov surge protection and the device is provided with a. Do not use relays in the atmosphere with sulfide gas, chloride gas or nitric oxide. Mercury displacement relay mercury wetted relay mercury contact relay photo source. Monitoring relays trend series tih4x industrial design width 45mm acdc current monitoring in 1phase mains fault latch position of output relay presettable 1 change over contact 2. Mercury contactor relays surplus sales of nebraska. Mercurywetted relays make and break circuits using a thin, selfrenewing film of liquid mercury. Mercury can be irritating to contaminated skin and eye. What links here related changes upload file special pages permanent link page information wikidata. A dry contact is the synonym of volt free it is not wetted by a voltage source. Available in 610 gauge, 1416 gauge, 1420 gauge, or 18 gauge options to suit your specific. Mercury wetted contacts reed relays engineering360. The relay will hold its contact position till the next voltage pulse.
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