AUXILIARY SWITCH

AUXILIARY SWITCH FEATURES Control devices for the circuit breaker play important roles for protecting the power system. It is an auxiliary switch that functions interlocking with the main circuit switching mechanism of the circuit breaker or the insulated switch, therefore high reliability is required. ■Rotary type auxiliary switch ●Cam-operated type B type auxiliary switch Applicable for shutting down relatively large current in frequently switching uses. BMZ and CMZ type auxiliary switches High-reliable auxiliary switches that have higher breaking capacity and higher impact resistance (prevention of chattering) than the conventional ones. All the wiring terminals are located on one side, for making wiring work easier. ●Drum type M type auxiliary switch Compactly designed and yet relatively high in breaking performance; therefore most suitable for miniaturize for the equipment. ■Push-type auxiliary switch ●UX-33A Applicable for a high-voltage electromagnetic contactor or a vacuum circuit breakers. The contact parts has a structure that can be incorporate a magnet, so that it’s possible to increase the breaking capacity of the contacts. SPECIFICATIONS (RATINGS, PERFORMANCE) Item B-AUS BM-AUS BMZ CMZ S-AUS M-AUS UX-33A Rated insulation voltage (Ui) 600V 250V Rating Rated current-carrying capacity (Ith) 20A 10A 8A 10A Screw size Ｍ4×9 M3.5×7／PC board Ｍ4×8／faston＃250 Ｍ4×8 500,000 500,000 50,000 30,000 30,000 10,000 250,000 Electrical life （110V DC 1.5A（110V DC 1.5A （110V DC 5A （110V DC 10A （110V DC 5A （110V DC 2A （110V DC 3A Performance L/R＝40ms） L/R＝40ms） L/R＝40ms） L/R＝40ms） L/R＝40ms） L/R＝40ms） L/R＝40ms） Mechanical life 1,000,000 500,000 30,000 50,000 1,000,000 Contact resistance 50ｍΩ or less Withstand voltage 2,500V for 1 min. 2,000V for 1 min. 2,500V for 1 min. Standard operating Ambient temperature −20℃ to 60℃（No freezing） condition Altitude 2,000 ｍ or less 1,000 ｍ or less 2,000 ｍ or less A141

SWITCH HOW TO ORDER Please choose a code below. Please ask us for special specifications (contact arrangement, shaft shape, confirmable standard etc.). 【B-AUS type】 　Ex.１） 　Ex.2） B-AUS-05X□□□ B-AUS 5-5（1A1B） Basic type Spec No. Basic type No. of units Contact 【 arrangement BM-AUS type】 　Ex.１） 　Ex.2） BM-AUS 1-05X□□□ BM-AUS 1- 5（1A1B） Basic type Spec No. Basic type No. of Contact units arrangement Fix bolt number Fix bolt number 1 2 bolts of front (less than 7 units) 1 2 bolts of front (less than 7 units) 2 4 bolts of front and raer (more than 8 units) 2 4 bolts of front and raer (more than 8 units) 【BMZ type】 　Ex.１） 　Ex.2） BMZ-03X□□□-□ BMZ-5（1A1B） Basic type Spec No. Basic type Contact arrangement 【CMZ type】 　Ex.１） 　Ex.2） CMZ-03X□□□-□ CMZ-5（1A1B） Basic type Spec No. Basic type Contact arrangement 【S-AUS type】 　Ex.１） S-AUS-03X□□□-□ Basic type Spec No. 【M-AUS type】 　Ex.１） M-AUS 6-3（1A1B） Basic type No. of units Contact arrangement ［UX-33A type ］ UX-33A 3A2B1DB-MR ●In case of tropical treatment products, due to produced an order, please ask us about the delivery time and price separetely. Basic type Tropical region type (Special products) Contact arrangemen t 5A1B 5A 1DB A,B contact…Standard contact 4A2B 4A1B1DB DB contact…Delay contact 3A3B 3A2B1DB ※1DB contact parts (terminal No. 25-26) has a magnet that’s a standard structure. 2A4B 2A3B1DB However, please specify when putting magnet into the 1A contact parts (terminal No. 11-12) ※Terminal No. 26 and 12, wiring on the ＋ side is standard. 1A5B 1A4B1DB A142 E CONTROL D ELECTRONIC DEVICES C CONNECTING DEVICES B PILOT LAMP & CENTER PARTS INDICATOR A SWITCH

AUXILIARY SWITCH OUTLINES B-AUS Mounting hole size Mounting panel t = 1 to 3.2 max. No. of units 3 4 5 6 7 8 9 10 L (mm) 70 83 96 109 122 135 148 161 BH-AUS（BM-AUS） Added for 8 units or more Mounting hole size Insulation sheet Cannot be attach to the model rated at 250V. No. of units 1 2 3 4 5 6 7 8 9 10 L (mm) 36 49 62 75 88 101 114 127 140 153 BMZ Added for 8 units or more Mounting hole size 4-φ6 φ13 No. of units 1 2 3 4 5 6 7 8 9 10 L (mm) 36 49 62 75 88 101 114 127 140 153 CMZ Mounting hole size 50 4-φ6 φ13 No. of units 1 2 3 4 5 6 7 8 9 10 L (mm) 34 49 64 79 94 109 124 139 154 169 A143 25 20 20 20

AUXILIARY SWITCH SWITCH OUTLINES B-AUS S-AUS Mounting hole size Mounting hole size 38 M3.5×7 Terminal No. NP 90° 17.3 L＋16.6 4-φ5 21 17 13 9 5 1 23 19 15 11 7 3 M3 tap Depth: 7mm Mounting panel t = 1 to 3.2 max. No. of units 1 2 3 4 5 6 7 8 9 10 No. of units 3 4 5 6 7 8 9 10 L (mm) 31 42 53 64 75 86 97 108 119 130 L (mm) 70 83 96 109 122 135 148 161 BH-AUS（BM-AUS） M-AUS Added for 8 units or more Mounting hole size Mounting hole size シャフト（注） M4 thresd Insulation sheet Cannot be attach to the model No. of units 4 6 8 10 12 rated at 250V. L (mm) 61 81 101 121 141 No. of units 1 2 3 4 5 6 7 8 9 10 Contact 2A2B 3A3B 4A4B 5A5B 6A6B L (mm) 36 49 62 75 88 101 114 127 140 153 BMZ UX-33A Added for 8 units or more Mounting hole size 4-φ6 φ13 No. of units 1 2 3 4 5 6 7 8 9 10 Full stroke: Mounting hole size L (mm) 36 49 62 75 88 101 114 127 140 153 Stroke: 3-φ4.6 or M4 thread CMZ Mounting hole size Mounting hole 50 4-φ6 Indicator type ● ON status → ● OFF status The ON / OFF status is shown by the indicator located at φ13 the center of the stage. This design ensures high reliability and safety as well as simple recognition. No. of units 1 2 3 4 5 6 7 8 9 10 L (mm) 33 49 64 79 94 109 124 129 154 169 A144 25 20 20 20 27.5 72 64 2.3 27.5 34 E CONTROL D ELECTRONIC DEVICES C CONNECTING B PILOT LAMP & CENTER PARTS DEVICES INDICATOR A SWITCH