Part Number | 18-40421 |
---|---|
Manufacturer | ITW SWITCHES |
Category | Switches » Switch Snap Action |
Price | Request Quote |
Lead Time | Request Quote |
Switch Snap Action N.O./N.C. SPDT Plunger Solder 7A 250VAC 28VDC 1.67N Screw Mount
18-40421
Once you accept your quote and confirm your order, we prepare by retrieving related parts and components from our inventory. Anything we do not currently have in stock is sourced.
Upon receipt, all parts are visually inspected for damage and then photographed to document their condition. Parts acquired from vendors must meet our quality standards.
Industrial computer boards and other parts we are equipped to evaluate are tested to verify functionality and discover possible damage.
Industrial computer boards have all components with low MTBF numbers (such as capacitors and connectors) replaced and are washed in our PCB cleaner to remove dust and grime.
Industrial computer boards are fully diagnosed and repaired by our engineers. Logs of the problems encountered and solutions implemented are recorded.
Industrial computer boards have all I/O connections rigorously tested to ensure that everything is working properly before the board is certified as ready to ship.
After photos are taken to document the exterior condition of the part, it is packaged and sent to the customer. ESD-safe materials are used to protect sensitive equipment on its journey.
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Manufacturer | ITW Switches |
---|---|
Manufacturers Part # | 18-40421 |
Lead Time | 12 Week Lead Time |
Industry Aliases | 18-40421 |
Sub-Category | Snap Action Switches |
Factory Pack Quantity | 50 |
Download "Series_18.pdf" (230 KiB)
SNAP ACTION SWITCHES ULTRA SUB-MINIATURE 7 AMP DOUBLE-BREAK SNAP ACTION SWITCHES ® Series 18 switches feature the Butterfly double- break momentary switch mechanism. This very small package can carry a full 7 amp load (or low current load). APPLICATIONS • Industrial valve controls • Aircraft rotary actuator • Aircraft linear actuator • Float control pumps • Spool valves • Medical equipment • Aircraft fuel valves • Pressure switches ACTUAL SIZE KEY FEATURES: • Gold contacts • UL recognized and CSA certified: 7 amps @ 125/250 VAC • Solder terminals • Lever and roller actuator are • Meets MIL-S-8805/76 available ORDERING INFORMATION: Switches Part Number Contacts Terminals RoHS Compliant 18-40421 Gold Plated End Solder 18-488051 (MS27257-1) Gold Plated End Solder Actuator (see page 70 for additional specifications) Part Number Oper. Force Release Force Pretravel Overtravel Movement Diff. Operating Point 78-3000 6 ± 2 oz 2 oz min .125 max 030 min .030 ± .015 .325 ± .030 Spring Lever 78-3100 6 ± 2 oz 2 oz min .125 max .030 min .035 ± .015 .560±.030 Roller Lever STANDARDS / AGENCY / RATINGS: 33 3 ® IEC RoHS V IP67 COMPLIANT D E 2 2002 / 95 / EC COMPLIANT Contact an Authorized Distributor or Factory for Pricing www.itwswitches.com 54 SNAP ACTION SWITCHES SERIES 18: ULTRA SUB-MINIATURE 7 AMP DOUBLE-BREAK MECHANICAL / ELECTRICAL CHARACTERISTICS: PRODUCT DRAWINGS Pretravel: 0.030 inches max Overtravel: 0.006 inches min Operating Force: 5 oz + 3 oz - 2 oz Release Force: 1.5 oz min Movement Differential: 0.015 inches ± 0.005 Operating Point: 0.320 inches ± 0.015 (from mounting hole centers) Circuit: SPDT-DB (Form Z) MIL-PRF-8805/77 QPL listed: 18-488051 MS27257-1 Electrical Rating @ 28VDC: Circuitry Current 2 Circuit 5 amp Res (SPDT-DB) 3 amp Ind* 1 Circuit 8 amp Res (SPST) 7 amp Ind* *L/R = .026 Designs and specifications are subject to change 55 800.544.3354 without notice due to product improvement. Copyright © 2011 ITW Switches 2011 Copyright © 2011 ITW Switches 2011 ACTUATORS SEE PAGE 54 FOR SWITCHES KEY FEATURES: • Spring Lever • Roller Lever MECHANICAL CHARACTERISTICS: Part Number Oper. Force Release Force Pretravel Overtravel Movement Diff. Operating Point 78-3000 6 ± 2 oz 2 oz min .125 max .030 min .030 ± .015 .325 ± .030 Spring Lever 78-3100 6 ± 2 oz 2 oz min .125 max .030 min .035 ± .015 .560 ± .030 Roller Lever 78-3000 78-3100 Designs and specifications are subject to www.itwswitches.com 70 change without notice due to product improvement.
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