Form 451 (05.18) ©SOR Inc.
5/8
Special Conditions for Safe Use
This apparatus may have a combined nameplate which carries multiple approvals
(intrinsically safe and flameproof). The equipment should be marked as to which protection
method it is installed as and shall not be changed or utilized in any other means than was
originally marked by the end user.
When marked and installed as Ex i equipment, the permanently attached leads must be
suitably protected against mechanical damage and terminated in a suitable junction box or
terminal facility having a degree of protection at least IP20.
When marked and installed as Ex d equipment, the permanently attached leads must be
suitably protected against mechanical damage and terminated in a suitable junction box or
terminal facility.
Ensure that the wiring conforms to all applicable local and national electrical codes and
install unit(s) according to relevant national and local safety codes.
Electrical connection is free wire leads with a 1/2” NPT(F) conduit connection. Use two
wrenches — one to hold the hex conduit connection, the other to tighten conduit fitting.
Switching element is a hermetically sealed reed switch.
Electrical Connection
SPST
Reed Switch
Capsule
SPDT
Reed Switch
Capsule
Common Black Lead
Common Black Lead
Normally Open White Lead
Normally Closed White Lead
Normally Open Blue Lead
Do not exceed
catalog stated electrical
ratings. Improper
current input to switch
will cause permanent
damage to contacts.
