Norstat, Inc. is now offering a full line of Non-Contact, Magnetically Operated Safety Switches. The O-Type line of switches are available in two versions. The OHE1 is a standalone, non-contact safety switch with 2 OSSD safety outputs and 1NC contact and is magnetically coded. The ODNK is a standalone, non-contact, RFID safety switch with 2 OSSD safety outputs and 1NC contact. The uniquely coded RFID has a possible 4 billion code combinations and both switches are suitable for series connection of up to 30 switches while still maintaining PL-e.
These O-Type safety switches have been designed for use on applications where guard-locking is not required. They are available in either uniquely coded RFID (yellow) or coded magnetic (black). The dual channel OSSD outputs can be used to reach a safety category of CAT4, SIL3, PL-e
These switches can be used with a feature called EDM (external device monitoring). This means you can monitor the state of contactors or safety relays in order to detect failure of the external device eliminating the need for a safety monitoring device.
The O-Type safety switches are available with 3, 6 or 10 meter, pre-wired cables which are fully sealed and suitable for use in wet or harsh environments ( IP 67 & IP 69K ).