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Push Button Switches - ND Series

Push Button Switches - ND Series
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ND Series: 16 dia. types (ACEL, ACBL, ACSL, ACKL) 20 Illuminated pushbutton, non-illuminated pushbutton, selector, key selector switches ND Series (mounting hole 16 dia. type) TÜV Rheinland Bright, clear illumination (ultra-high intensity LED used) Separate mounting model features removable lock lever FEATURES 1. Bright, clear LED illumination 1) Uses brilliantly illuminating LEDs that are much brighter than incandescent bulbs. 2) Brightness greatly increased for vastly improved recognition and safety. Yellow and green are particularly easy to distinguish. Makers who are especially concerned about product liability laws and worker safety and sanitation are calling for machines that are designed and manufactured based on the ISO12100 series of international safety standards (general regulations governing basic conceptual design for machine safety). With the ISO12100 series, the manmachine interface must be designed so that the status of the machine can be recognized clearly and correctly by anyone running the machine, without special training or expertise. For that reason, display lamp colors are standardized under IEC60073, IEC60204-1 and other standards cited in the ISO12100 series, and are covered by JIS standards as well. The LED illumination of the ND type meets safety needs such as these, and beyond. Note) IEC60073: JIS C 0448 Colors for Display Units and Operation Devices IEC60204-1: JIS B 9960-1 Safety of Machines and Electrical Units of Machines Display lamp colors and meanings indicating machine status (taken from International Electrical Standards Conference IEC-60073 and 60204-1) 3) Power consumption greatly reduced (12 V type). The power consumption has been reduced by 60% in the 12 V type (mounting hole 16 dia. type). 4) Continuous illumination with no need for replacement for 5 years (50,000 hours). 5) Products available in 6 illuminated colors: red, orange, yellow, green, blue, and white. Color Meaning Explanation Operator action Red Emergency Hazardous situation Action appropriate to hazardous situation Yellow Caution Problem status/urgent or critical situation Visual monitoring and (or) intervention Green Normal Normal status As appropriate Blue Obligatory Displays status of action required by operator Obligatory action White Neutral Any other status; Can be used when using red, yellow, green, or blue might be interpreted erroneously. Visual monitoring Rated current Mounting hole 16 dia. type Mounting hole 22 dia. type 12 V AC/ DC type 8 mA (20 mA in previous model) 10 mA (20 mA in previous model) mm 2. Emergency pushbutton switches equipped with safety lock mechanism. Contacts have forced contact separation mechanism. Two button diameters available, 25 and 40. 1) Safety lock mechanism A safety lock mechanism is used in which the contact does not move until the pushbutton has completely locked. Because the contact does not operate unless the button has been pressed all the way down, there is no danger of the machine suddenly stopping because of a malfunction caused by something coming in contact with the button, and no loss from such situations. 2) Forced contact separation mechanism The mechanism is designed so that the button operation force is used, as is, as the contact separation force. Therefore, the circuit will shut off perfectly even if a problem happens to occur such as the contact welding shut. (Conforms to EN60947-5-1 Annex K.) 3) Two button diameters available, 25 and 40. 3. Nice, light switching feel. Light operation load due to snap action mechanism. Short stroke type. Relationship between operation load and stroke (Mounting hole 16 dia. type: 1 Form C contact momentary action) 1) Stroke: 3 mm 2) Mechanical life (mounting hole 16 dia. type) Momentary type: Min. 2 × 106 (4 times better than previous) Alternate type: Min. 2.5 × 105 (2.5 times better than previous) Tight, space-saving mounting Stroke (mm) Operation load (g) 0 100 200 300 250 150 50 350 1 2 3 04/2007

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ND Series: 16 dia. types (ACEL, ACBL, ACSL, ACKL) 21 ORDERING INFORMATION 1. Illuminated pushbutton switches (LED illumination) and indicators (display lamps) 4. Removal/installation type with lock lever system. Smooth installation now possible. 1) New tight mounting type added. Space saving realized with small installation area. 2) It is easy to install in tight spaces and maintenance is easy. 3) Operation efficiency is greatly increased since surface installation and wiring operations can be carried out separately. Mounting hole 16 dia. type Mounting hole 16 dia. type exterior...

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ND Series: 16 dia. types (ACEL, ACBL, ACSL, ACKL) 22 2. Pushbutton switches (non-illuminated types and transparent buttons) 3. Selector switches ACBL 2 Mounting holes and flange shapes (With transparent button type) Mounting hole 2: 16 dia. 3: 16 dia. 4: 16 dia. Flange shape 18 dia. projecting type 18 square flat type 18 × 24 flat type (With mushroom button type) Mounting hole 0: 16 dia. 5: 16 dia. Flange shape 24 dia. 30 dia. Protective construction 2: Splashproof type (IP65) No. of poles and operating characteristics Terminal shape and mounting dimensions Nil: solderable tab terminal,...

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ND Series: 16 dia. types (ACEL, ACBL, ACSL, ACKL) 23 4. Key selector switches Mounting holes and flange shapes 3: 16 dia. 4: 16 dia. 5: 16 dia. Flange shape> 18 square flat type 18 × 24 flat type 18 dia. flat type Protective construction 2: Splashproof type (IP65) Operation methods and key removal positions 11: 2-notch manual reset: OFF position 12: 2-notch manual reset: ON position 13: 2-notch manual reset: Both ON and OFF positions 21: 2-notch automatic reset: OFF position (mounting hole 16 dia. type only) 37: 3-notch manual reset (no single pole; double poles only) (Key can be removed at...

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ND Series: 16 dia. types (ACEL, ACBL, ACSL, ACKL) 24 TYPES 1. Illuminated pushbutton switches (LED illumination) Notes) 1. The following combinations of numbers and letters are entered in the square and in the . symbol to indicate the LED voltage and pushbutton color. 2. The white type has a colorless transparent cap. 3. If you would like PC board terminals, please add a “3” to the end of the part number when ordering. However, this only applies to gold contacts. Please inquire for details. Also, if you would like mushroom button type PC board terminals, please add a “3” in the position...

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