E-Stops with redundant contacts
2 April 2008
Switches, Relays & Keypads
Rafi’s E-Stop ‘Plus 1’ emergency-stop switches offer two redundant normally-closed contacts for the primary emergency stop function and an additional normally-open contact. This normally-open contact can be used for example to inform a watchdog monitor or an additional security master about the status and the localisation of an actuated E-stop pushbutton.
The actuating plunger is available in two versions: one which is reset by pulling and is protected according to IP 69K, and the other which is reset by rotation and is protected according to IP 65. The contact block features gold contacts with a maximum rating of 42 V and 100 mA, and is available with quickconnect terminals with a mounting depth of 27 mm and a PCB mounting version with a mounting depth of only 9,2 mm.
Further reading:
Compact switching joystick
Brabek
Switches, Relays & Keypads
The MHS Series from Ruffy Controls is a momentary four-way or eight-way switching joystick with an optional pushbutton validation feature.
Read more...
Schlegel switches available from TME
Switches, Relays & Keypads
The range of Schlegel products available at TME comprises contact blocks, compatible switches, and accessories.
Read more...
Miniature SIP reed relay with 5 kV stand-off capability
Switches, Relays & Keypads
Pickering Electronics has added a 5 kV stand-off, up to 1,5 kV switching version to its single-in-line Series 104 reed relay family.
Read more...
New robust mid-sized joystick
Brabek
Switches, Relays & Keypads
These ergonomic mid-sized palm joysticks from Apem are available with multifunction configurable handles, and are IP67 rated.
Read more...
SMD tactile switches for miniaturised applications
Vepac Electronics
Switches, Relays & Keypads
Panasonic Industry has introduced a new series of durable thin-type SMD tactile switches for miniaturised applications requiring a switch with a short travel distance for extremely quick output.
Read more...
Miniature rotary switch series
Electrocomp
Switches, Relays & Keypads
The high-quality miniature rotary switch series (MRSS) by TE Connectivity has a compact design which offers 50% lower profile than standard DIP switches.
Read more...
‘Excellently average’ PhotoMOS relays
Avnet Abacus
Switches, Relays & Keypads
With the new AQY215S 100 V load voltage type, Panasonic Industry complements its GU series of MOSFET relays in the middle of the feature scale.
Read more...
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...
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...
Ergonomic tuning knobs with illumination options
Avnet Abacus
Switches, Relays & Keypads
With its new Control-Knobs range, OKW Gehäusesysteme offers an advanced range of tuning knobs as the central elements for menu-controlled interfaces. The soft-touch grip surface provides an easy hold,
...
Read more...
printer friendly version