
1640-1 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $39.99 | Condition is Used, Dwyer Instruments - 1640-1 - Null Switch, shipping cost = $23.36 | 99.6% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $843.00 | Top Pick! Condition is New, DWYER 1640-1 / 16401 (BRAND NEW), shipping cost = $12.90 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $100.00 | Condition is New – Open box, Dwyer 1640-1 Null Switch, shipping cost = $14.95 | 90.0% |
![]() | $99.99 | Condition is New – Open box, Dwyer Instruments Floating Contact Null Switch No 1640-1 .20-1.0 Inches T, shipping cost = $18.40 | 99.9% |
![]() | $145.00 | Condition is New – Open box, Dwyer Floating Contact Null Switch 1640-1, FREE SHIPPING | 0.0% |

Ups next day am. Ups 2 day air am. Prices for these options may differ from standard ground shipping.
Item is sold as pictured. These services include: ups 3 day select. The cost of combined shipping depends on weight, location buyer and size box. Dwyer 1640-1 floating null switch.
specifications indusswitch:
- brand: Dwyer
- mpn: 1640-1
- part type: Switch
offer indusswitch:
- in stock #: 5
- started: september 13, 2025
- options: ship-to-home
- best offers: true
- prices: $39.99–$843.00
- item condition:
- Used
- New
- New – Open box
- availability: in stock
- sold #: 13
seller indusswitch:
- # reviews: 22738
- city: kawkawlin, michigan
- rating: 99.9%
shipping indusswitch:
- type: calculated
- carrier: usps, ups
- service: usps priority mail, ups ground, usps priority mail express, ups next day air
- transit: 5-9 days
- class: expedited, standard, one-day
returns indusswitch:
- method: money back
- time: 30 days
- policy: returns accepted
- paid by: buyer
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Control Switches
payments indusswitch:
- credit card: mastercard
- wallet: paypal
- check
- other
- money order
rating: 99.9% out of 100 based on 738 user ratings.
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