Limit Switches
143Pages

Limit Switches Contents General Information Quick Selection Guide . . . . . . . . . . . . . . . . . . . . . . . page 5--2 Technical Definitions and Terminology . . . . . . . . . page 5--6 Application Considerations . . . . . . . . . . . . . . . . . . . page 5--8 Products 801 General Purpose . . . . . . . . . . . . . . . . . . . . . . . . page 5--9 802DN DeviceNett Limit Switches . . . . . . . . . . page 10--15 802G Gravity Return . . . . . . . . . . . . . . . . . . . . . . . 802M/802MC Pre-Wired Factory Sealed Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802R Sealed Contact . . . . . . . . . . . . . . . . . . . . . . . page 5--15 page 5--16 page 5--30 page 5--34 802T Oiltight Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plug-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . NonPlug-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802X Watertight or Hazardous Location . . . . . . page 5--40 page 5--41 page 5--48 page 5--54 page 5--74 802XR Sealed Contact Hazardous Location page 5--13 . . page 5--81 802B Compact, Precision and Small Precision . page 5--87 802T Safety Limit Switches (DALS) . . . . . . . . . page 5--109 440P IEC-Style Safety Limit Switches 22mm Compact Metal . . . . . . . . . . . . . . . . . . 22mm Small Plastic . . . . . . . . . . . . . . . . . . . . 30mm Large Metal . . . . . . . . . . . . . . . . . . . . . 15mm Plastic . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Levers . . . . . . . . . . . . . . . . . . . . . . . . . Indexes page 5--114 page 5--116 page 5--122 page 5--128 page 5--130 Cat. No. Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13--1 Comprehensive Product Index . . . . . . . . . . . . . . . page 14--1 Visit our website: www.ab.com/catalogs. Preferred availability cat. nos. are printed in bold. 5-1

Limit Switches Quick Selection Guide Visit our website: www.ab.com/catalogs. Preferred availability cat. nos. are printed in bold.

Limit Switches Quick Selection Guide 802T 802T Plug-In Style 802T Low Energy NonPlug-In Style 802X 802XR Watertight or Hazardous Location Sealed Contact Hazardous Location • NEMA Types 7 and 9 • Designed for hazardous locations only • Class I, Groups B, C, D Class II, Groups E, F and G, Class III • Designed for hazardous locations • Contains sealed glass contact switch for greater contact reliability • Mounting option: surface • Mounting option: surface • Plug-in construction provides quick and easy installation • New front-mounting design and method of mode change in head make it easy to...

Limit Switches Quick Selection Guide 802B Specifications Description Features Contact Rating Temperature Rating 802B Compact • Compact metal body • Prewired to maintain enclosure seals • Industry standard mounting for ease of installation. • • • • • 802B Precision 3 m cable standard AC or DC LED versions Low current versions Booted and panel mount versions UL/CSA and CE Marked for all applicable directives • Precision style limit switch • Industry standard mounting • Low trip and reset points for more precise sensing • • • • • 1/2 in. NPT conduit entry Grounding screw Booted models Side and...

Limit Switches Quick Selection Guide Visit our website: www.ab.com/catalogs. Preferred availability cat. nos. are printed in bold.

Limit Switches Technical Definitions and Terminology Actuator: A switch mechanism that when moved as intended, operates the switch contacts. This mechanism transmits the applied force from the actuating device...the contact block, causing the contacts to operate. Actuator Free Position: The initial position of the actuator when there is no external force (except gravity) applied to Actuator Operating Position: The position of the actuator when the contacts operate. Actuator Resetting Position: The position of the actuator at which the contacts move from the operated position to the "normal"...

Limit Switches Application Considerations Actuator Consideration Limit switches are designed for proper performance with the actuators with which they are supplied. Supplementary actuators should not be used unless the limit switches are specifically designed for them. Free Position Free Position * Operating mechanism for limit switches should be so designed that under any operating or emergency conditions the limit switch is not operated beyond its overtravel limit position. A limit switch should not be used For limit switches with lever actuators, the actuating force should be applied as...

Limit Switches 5_8 Visi'our website: www.ab.com/catalogs. /IK „ j. Preferred availability cat. nos. are printed in bold. sggr nHGn~tSr3QlBy

Limit Switches General Purpose The Bulletin 801 line of general purpose limit switches includes many types of switches for use in a wide variety of applications. Many different contact arrangements are available. Slow and snap action contact operating mechanisms are available. Snap action limit switches are designed to provide high snap through force once the mechanism has traveled the required distance. Refer to the table on page 5-12 for limit switch selection. Lever on right side as illustrated. Clockwise operation only. Lever can be Contacts are operated in both directions of roller...

Limit Switches General Purpose Contact Arrangements and Ratings Light Duty Standard Duty Ambient Temperature Range temperature based on the absence of freezing moisture or water.l 5-"10 Vsit our website: www.ab.com/catalogs. /IK ... „ Preferred availability cat. nos. are printed in bold. sgg? t\ilx}n-uYaQt&y

Limit Switches General Purpose Visit our website: www.ab.com/catalogs. Preferred availability cat. nos. are printed in bold.