I Separate Normally Closed and Normally Open Contacts Precision Series Switchgear Electro-mechanical, Standard BSW 492 (Switching Pointswith Adjustable by ± 20 o during Operation) Characteristics 1. Device for adjusting the switching pulses (smoothly). Adjustment tool in the casing lid. Construction Front view Adjusting spring A 6 x 6 X 25 or A 6 x 6 x 16 DIN 6885 2. No tightening or releasing of the cam is required. 3. Pulse position can also be adjusted by ± 200 for each switching point individualiy, during operation. \ 4. High precision snap action switch according to DIN 43695 type BSE 44.0. Mounted on individual segments. Two circuit changeover with two electricaliy and thermaliy isolated contact bridges. r;.. 40120---1 :2 Q .- c Side view 7. Available with a short (20 mm) or long (40 mm) shaft end of 20 mm diameter. Snap action switch Protective cover Hinge Dimensions 219 279 537 339 7 5 4 12 20 225 245 259 6 9 165 483 285 577 379 185of 503 319 305 Number cable Dimension A í _l 5. Drive on either of the shaft ends. The cover and the scale ring can be mounted on either end of the shaft. 6. Suitable for clockwise and anti clockwise rotation. The scale ring can be used as required. M 10 9 mm deep --\ 3 105 125 199 159 3 Reference edge __ 110 --1..-- __ 108 _••- --185 Ordering Instructions Production code I Switchgear code BSW 492 = Switching point variable by ±20° Snap action switch BSE 44.0 according to DIN 43695 Number of switching points 3, 6, 9, 12 or 20 Shaft end s 20 mm diameter L = shaft length 40 mm, centre thread M 10 at both ends of the shaft, 9 mm deep K = shaft lerigth 20 mm, centre thread M 10 at both ends of the shaft, 9 mm deep 3 = Type of drive 6 BALLUFF • I Technical Series Data BSW 492 Standard Switchgear BSW 492 Mechanical Data Casing material Die cast-aluminium, black anodized Cable entries in the casing Thread Pg 21 Shaft Steel, mounted in maintenance-free bea rings Cam rings Steel, surface hardened and ground Push-rod material Steel (rust resistant), with ballbearing fitted as support Lubrication None, maintenance-free, push-rod mounted in DU bush Protection class Speed Minimum opening angle 15° Permissible -5°C Operating Snap Action Switch BSE 44.0 to DIN 43 695 Construction, Mechanical and Electricai Data lP 65 to DIN 40050 Max. 200/min. ambient temperature (NEMA 4, 4X, 12) +800C oo. Greater than 30 million revolutions life Cas ing material Duroplast, Thermoplast Contact material Fine silver, gold plated (Iid) , Contact configuration The BSE 44 does not meet the requirements of a forced-opening independent trip switch. See page 25 ff. for safety switchgear. 1~ 3 2 --<)-0- 4 Cable connection M 3 screw connections for 2 x 1.5 mm2, with self releasing clíp washers Contact system Two circuit changeover with two electrically and thermally isolated contact bridges Operating system Snap action system with friktion contacts Operating force on push-rod Max. 4.4 N (440 p) Return force Min. 1.3 N (130 p) Recoil time ~ 1.5 ms Changeover , Normally closed 1 + 2 Normally open 3 + 4 time ~ Reproduceability of switching from circuit to circuit 1O ms point ±0.002 mm ~ ±0.1° ovenu m 60 protection Insulation Group "Cn to VDE 0110 Rated voltage 250 V AC Continuous 6A Switching Switching current capacity capacity Initial resistance AC (At 250 V, 40-60 (At 250 V, 40-60 (At 250 V, 40-60 DC (At 220 V, UR (At 24 V, UR when new Below 40 mO Hz) cos Hz) cos Hz) cos = 200 = 200 <p <p = 0.4 ms) ms) More than 50 mill ion cycles (VDE 0660 E 3) Electrical operating Dependent upon load and switching frequency Permit ( E EC Guideline 1 = 0.8 Mechanical operating life at 1.6 operations per second life = <p 6 A 2 A 1A 0.5 A 4 A UL E 66808 CSA LR 50067-1 89/336/EWG (EMC Guideline) BALLUFF 7