Switches, Relays & Keypads


Force guided relays

1 May 2013 Switches, Relays & Keypads

Force guided relays are key electromechanical switching components used within safety relay circuits. They enable the recognition of a contact’s switching condition in a simple and safe manner.

With the normally open (NO) and normally closed (NC) contacts of a force guided relay being insulated from each other, the load and monitoring circuit may have different voltage potentials. This simplifies monitoring, as the same relay can switch line voltage with one set of contacts and switch a DC signal to the microprocessor with another.

Force guided relays are designed to switch outputs of safe PLCs (programmable logic controllers) for automation and control, to monitor railway signals, to provide information related to the opening of an elevator door, and for use in monitoring machines and processes.

The specific details entitling force guided relays to monitor a switching state safely are described by EN 50205. By this, force guided relays can be used to achieve the required functional safety level by applying the highest diagnostic coverage according to IEC 61508-2. In most markets, if relays are used for safe monitoring, they must be force guided relays according to EN 50205.

TE Connectivity’s relay products division offers the SR2M, SR4M and SR6 two-, four- and six-pole models for such applications. Small in size, they are offered with PCB terminals and special types and modules are available.

For more information contact Electrocomp, +27 (0)11 458 9000, andrew@electrocomp.co.za, www.electrocomp.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Automotive solid-state relays
Switches, Relays & Keypads
The TPSI3050-Q1 isolated switch driver and the TPSI2140-Q1 isolated switch both integrate power and signal isolation across a single barrier

Read more...
Wire-to-board connectors with 0,8 mm pitch
Electrocomp Interconnection
An extensive array of circuit sizes (2 to 20 circuits) enables the extension of device functionality and features to meet product development needs.

Read more...
Regional edition of Degson catalogue
Electrocomp Technical Literature
Electrocomp has released a special regional edition of Degson’s short-form general catalogue. The 8-page catalogue summarises Degson’s range of PCB terminal blocks, DIN-rail terminal blocks, heavy-duty ...

Read more...
Type-C connectors for USB 2.0
Electrocomp Interconnection
The USB4105 Type-C USB 2.0 connectors from GCT (Global Connector Technology) offer a 5 A current rating, 100 MΩ insulation resistance and 3,31 mm profile. They feature 16 contacts with a top-mount position ...

Read more...
Dual-port PoE++ transformer
Electrocomp Passive Components
Bourns’ Magnetics product division is introducing the new Model SM13143EL dual-port LAN 10/100/1000 Base-T PoE++ transformer for Ethernet applications. This part is IEEE 802.3bt Type 3 (also known as ...

Read more...
Range of passive and active antennas
Electrocomp Telecoms, Datacoms, Wireless, IoT
Kyocera AVX’ antennas are available in standard and custom configurations, using a wide variety of materials to ease antenna integration and maximise performance. The company’s passive antennas boast ...

Read more...
Regional edition of Degson catalogue
Electrocomp Technical Literature
Electrocomp has released a special regional edition of Degson’s short-form general catalogue. The 8-page catalogue summarises Degson’s range of PCB terminal blocks, DIN-rail terminal blocks, heavy-duty ...

Read more...
Heavy-duty incremental and absolute encoders
Vepac Electronics Switches, Relays & Keypads
Wachendorff Automation now offers a heavy-duty variant, in a very compact 36 mm design, as part of its range of incremental encoders in the WDGP series, as well as absolute encoders in the WDGA series. ...

Read more...
Tektronix adds 5G capabilities to 6-Series scopes
Electrocomp Test & Measurement
The release of SignalVu 5G NR analysis software for Tektronix’ 6-Series B mixed-signal oscilloscopes (MSO) gives engineers the ability to perform critical 5G NR measurements, per 3GPP specifications, ...

Read more...
Optional inner panels for IP68/66 plastic enclosures
Electrocomp Enclosures, Racks, Cabinets & Panel Products
Hammond Manufacturing’s 1557 family has proved to be very popular since it was launched some two years ago and is increasingly being used as a housing for electromechanical components as well as PCB-mounted ...

Read more...