KX Series Precision Sine Switches

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Precision Sine Switches FEATURES Hermetic seal provides exceptional operational freedom from environmental conditions Compactly designed to fit small, narrow spaces Available with either screw or

INTRODUCTION The Klixon KX Series ally sealed sine switch is a precision snap acting device.

KX series switches are sealed within a one-piece steel case engineered to withstand extremely low or high ambient pressures.

1 Precision Sine Switches FEATURES Hermetic seal provides exceptional operational freedom from environmental conditions Compactly designed to fit small, narrow spaces Available with either screw or solder lug type terminals Snap acting sine switch provides exceptional resistance to shock and vibration Embedded leads are available Lead lengths can be supplied to customer requirements INTRODUCTION The Klixon KX Series ally sealed sine switch is a precision snap acting device. It is designed for use in the aerospace industry and for other applications where operational freedom from environmental conditions is a requirement. KX series switches are sealed within a one-piece steel case engineered to withstand extremely low or high ambient pressures. True sealing is achieved with a metal wave type diaphragm at the actuating lever. The actuating arm is keyed to hold the arm in alignment and to prevent damage to the diaphragm. The switching element is the versatile Klixon sine switch. This simple, one-piece element eliminates knife edges and high friction joints. Rigidly supported at both ends and accurately prestressed in tension, the sine switch features outstanding resistance to shock and vibration. Klixon switches have been used in a variety of aircraft, weapons systems, aircraft engine and aerospace applications for well over 30 years. A brief listing of typical applications include: Door interlock systems Aircraft engine ignitions Aircraft missile launcher position indication External stores emergency jettison switches Stowed / deployed indication for thrust reversers Safety ignition indication for military jet engines Radar pod door switches Tank/armored personnel carrier missile launcher switches Tank gun turret position indication KX 4 4 Seal Epoxy Sealed (class 4) Hermetically Sealed (class 5, MIL-S-8805) Max Ambient Temperature KX4-60 F (7 C) KX5-75 F (35 C) KX5-375 F (9 C) Terminals Solder Lug 5 Screw 3 KX Series

2 PERFORMANCE & ACTUATION CHARACTERISTICS CHART KX4-- KX4-- KX5-- KX5-- Device Type Environmental Seal Hermetic Seal KX5-- KX5-- Hermetic Seal, High Temperature Actuating Force (STP) 8 to 4 oz 8 to 4 oz 6 to 48 oz Min Release Force (STP) Max Pretravel Max Movement Differential Min Overtravel Positive, Overtravel Stop Yes Yes Yes Max Force on Actuator 5 lb 5 lb 5 lb Current Ratings in Amps 8VDC & 0VAC Hz Resistance Inductive Lamp 3 3 Min Rated Load 5K 5K 5K -65 F to 60 F (-53.8 C to 7. C) -65 F to 75 F (-53.8 C to 35 C) -65 F to 375 F (-53.8 C to 90.5 C) Dielectric Strength 50 VRMS 50 VRMS 50 VRMS Shock Resistance 00G w/o damage Vibration Resistance 0G Contact Arrangement SPDT SPDT SPDT Backfill Dry nitrogen with 0% helium Dry nitrogen with 0% helium Seal (MIL-S-8805) Resilent, Class 4 (epoxy seal) Fusion, Class 5 ( seal) Fusion, Class 5 ( seal) Max Leakage x 0-6 Std. cc He/Sec x 0-8 Std. cc He/Sec x 0-8 Std. cc He/Sec (35.00).378 (0.3) PART NUMBER STAMPED HERE KX4-- (5.6) FREE 0.65 POSITION (3.70).48 KX5--, KX5-- KX4-- KX5--, KX5-- TIN DIPPED TERMINALS KX Series 3

3 KX4 sealed 4 oz KX5 4 oz.05 (.0mm).00 (.76mm).05 (3.8mm) KX5 hi temp 4 oz -67 F to 60 F (-55 C to 7 C) 00 SINE SWITCH PACKAGE, POLE (0 amps) KX SPDT SPST, N.C. SPST, N.O. Dielectric Strength 50 VRMS terminal to terminal 50 VRMS terminal to case 0.90 oz (0.3 ± 0.38) ± 0.05 (35.00 ± 0.787).378 ± 0.03 (9.78 ± 0.38) ± 0.05 (0.3 ± 0.076) ± (6.38) FREE POSITION (3.5) X (.95) LENGTH/WIDTH (.3 ± 0.7) ± (.9 ± 0.38) 0.45 ± 0.05 (3.56 ± 0.38) 0.40 ± 0.05 (3.7 ± 0.38) ± 0.05 (0.6) APPROX RADIUS (0.95) 0.43 AWG #8 MIL-W-6878, TYPE EE (3-PL) CODE TERMINAL IDENTIFICATION COM, WITHIN (5.4MM) OF POTTING KX4 KX5 KX5 48 oz 48 oz 48 oz 8 oz 8 oz 8 oz.090 (.9mm) 00 SIDE PLATE SWITCH PACKAGE, POLE (0 amps) KX SPDT SPST, N.C. SPST, N.O. (4.55 ±.58) ± 0.06 (6.58 ± 0.38) 0.59 ± 0.05 (7.97) REF.0 (5.4) (43.8).700 (4.83 ± 0.07) 0.90 ± (5.88) 0.65 #8-3NC- TAP OPERATING (37.80).488 (0.787 ± 0.076) 0.03 ± (0.9 ± 0.508) 0.40 ± 0.00 (5.03 ± 0.508) 0.98 ± 0.00 OVERTRAVEL (3.75).5 (6.35 ± 0.38) RAD 0.50 ± 0.05 (30.5 ± 0.38).87 ± 0.05 (63.5 ± 0.7).50 ± KX Series

4 Overtravel Force (max) KX4 KX5 KX5 96 oz 96 oz 96 oz 60 oz 60 oz 60 oz.00 (.54mm).06 (.53mm).75 (4.45mm) -65 F to 75 F (-54 C to 35 C) oz 003 SIDE PLATE SWITCH PACKAGE, POLE (0 amps) KX (9.73) (55.30) (6.48) (40.0).575 (45.89 ± 0.4).807 ± 0.06 (5.65).0 (.7) (3.0) 0. FREE POSITION (.43 ± 0.76) ± (6.50 ± 0.5) 0.56 ± (.7) (55.88).0 AWG #0 WIRE LEADS PER MIL-W-6878/5 MIN 8FT (.44M) LENGTH (8.00 ± 0.508) 0.35 ± 0.00 (8.5 ± 0.54) ± 0.00 (6.67 ± 0.76).050 ± (9.8 ± 0.76) ± OVERTRAVEL (6.48 ± 0.7) 0.55 ± (6.86 ± 0.78) 0.70 ± KX4 sealed 60 oz KX5 60 oz.50 (3.8mm).00 (.76mm).450 (.43mm) KX5 hi temp 60 oz 004 ROLLER LEAF SWITCH PACKAGE, POLE (0 amps) KX (7.95 ± 0.787) 0.33 ± 0.03 (5.4 ±.54).000 ± 0.00 (38.0).500 (56.39 ± 0.508).0 ± 0.00 (.9 ± 0.38) 0.45 ± 0.05 WIRE LEADS PER MIL-W-8777 #0, WIRE 4 MIN LENGTH (43.8 ± 0.76).700 ± (6.5) SWITCH # SWITCH # (43.69 ± 0.38).70 ± 0.05 KX Series 34

5 Positive Overtravel Stop Max Force on Actuator KX4 KX5 KX5 96 oz 96 oz 96 oz.075 (.9mm).030 (.76mm).75 (4.45mm) -65 F to 75 F (-54 C to 35 C) Yes 0 lbs 005 PLUNGER SWITCH PACKAGE, POLE (0 amps) KX oz (4.66 ± 0.54) ± 0.00 (40.0).575 (3.6) (3.75) /3-3NS-A THREAD (9.4 ± 0.54) ± 0.00 (0.7 ± 0.54) 0.85 ± 0.00 (55.88).0 (46.3).80 AT FULL OVERTRAVEL (5.8 ± 0.508).040 ± 0.00 (.60) AWG #0 WIRE LEADS PER MIL-W-6878/S, 96 MIN KX4 KX5 KX5 48 oz 48 oz 48 oz 8 oz 8 oz 8 oz.090 (.9mm) 006 LEAF SWITCH PACKAGE, 4 POLE (0 amps) KX PDT 8 3PST, N.C. 9 3PST, N.O. 0 4PDT 4PST, N.C. 4PST, N.O. (8.89) (5.4) OPERATING (38.).500 (50.8 ± 0.54).000 ± 0.00 (5.4 ± 0.38).000 ± 0.05 (5.69) MIN 0.4 (8.9) 0.70 (37.09) (.59).460 (38.) (54.6 ± 0.54) (3.8 ± 0.54) TYP MIN OVERTRAVEL ± ± 0.00 (6.35) 0.50 #4-40 TERMINAL SCREWS (7.39)

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1500 Meriden Road Waterbury, CT 06705 1-800-243-2715 (International call 203-756-7441) Fax: 203-756-8724 e-mail: info@hsi inc.com Web: www.hsi inc.com This catalog was produced for the exclusive use by