Intrinsic Safety Barriers X57 ISO 9001 REGISTERED
X57 Intrinsic Safety Barriers Intrinsic Safety Barriers are devices which limit the power (energy) that can be delivered from a safe area into a hazardous area. Explosions are therefore prevented, not just contained, as in expansion proof conduit and heavy cast housings. Not only is electrical energy (voltage and current) held within safe limits, but also total energy, eliminating the possibility of an explosion due to excessive heat.
X57 Shunt Diode Zener (Passive) I.S. Barriers Ronan's Zener Barriers, especially the multi- require a high integrity I.S. ground. This may present channel versions, are a logical choice when space a problem, especially in older plant installations. and cost are the major considerations. They do not When the quality or availability of an I.S. ground is require their own power supply, but rather provide questionable, the designer should consider using protection passively.
X57 Galvanic Isolation (Active) Barriers In numerous applications, zener diode barriers of frustrating analysis to confirm both safety and will either not work, or they impose constraints that proper system operation. Ronan's line of active I.S. complicate system design. The series resistance, fuse barriers eliminates much of the tedious analysis re- rating and maximum working voltage of a zener quired.
X57 Common Applications and operation. Therefore, care should be excercised when selecting a barrier to assure compliance with approved installation drawings and to assure proper circuit operations. Ronan engineers are available to help in your barrier selection. These applications are intended as an aid in selecting possible barrier options. As with any I.S.
X57 Chassis Options (Surface Mount) Surface Mount for Active and Zener Barriers Extended Ground Connection Optional .16 in. (93.96 mm) Dia. 4 Places Ground Bar 18GA, Green 18GA, Green 1 2 3 4 I.S. GND V+ V– 2.96 in. (75.56 mm) 2.58 in. (65.40 mm) Ground Connection I.S. Ground 5 6 7 8 4 3 6 2 7 8 In/Out 1 to 4 Channels Used I.S. Ground 5 4.00 in. (101.60 mm) 5.82 in. (147.82 mm) 1 .91 in. (23.
X57 Chassis Options (DIN Rail Mount) DIN Rail Mount for Active and Zener Barriers X57-P DIN-32 for Active Barriers The “DIN” rail chassis options are an ideal choice to save on panel space. Order one chassis for each barrier module. With the X57-DIN chassis (for zener barriers) each chassis requires its own ground wire. On multiple chassis installations, the optional ground bars “buss” together the individual chassis grounds allowing one ground connection for the entire group.
W a r r a n t y Ronan warrants equipment of its own manufacture to be free from defects in material and workmanship, under normal conditions of use and service, and will replace any component found to be defective, on its return, transportation charges prepaid, within one year of its original purchase. This warranty carries no liability, either expressed or implied, beyond our obligations to replace the unit which carries the warranty.
