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MICRO SWITCH™ NT Series Commercial-Grade Toggle Switches

Honeywell MICRO SWITCH™ NT Series toggle switches meet the need for a rugged, cost-effective toggle switch. Quality construction features include a seal between the toggle lever and bushing, and between the cover and case. These switches are suitable for applications in many demanding outdoor environments, where the panels are sub jected to vibration from equipment, temperature extremes, dust, splashing water, and/or hose directed water.

They are capable of withstanding exposure to heavy accumulations of early morning dew that may condense on the control panel in cabs of vehicles left outdoors overnight. The NT toggle switches with larger standard metal or plastic levers are well suited for gloved-hand operation.

Available in both step-base and flat-base styles, the NT Series offers three popular styles of termination: 6-32 screws, solder lugs with 3,0 mm [0.12 in] diameter hole, or 6,35 mm [0.25 in] quick connect terminals.

The optional “Easy Start” threaded bushing enables quick alignment of the mounting nut to minimize any cross threading. The panel stand-off with O-ring feature available on some listings eliminates the need for behind-the-panel hardware, provides a uniform panel height, and a panel-to-cover seal.

Table 1. Specifications

CharacteristicParameter
DescriptionCommercial-grade toggle switch (step base and flat base options)
SealingIP67/IP68; NEMA 3, 3R, 4, and 13
Operating temperature-40 °C to 71 °C [-40 °F to 160 °F]
ActuatorsStandard, locking, special design, tab
Action2- or 3- position; momentary and maintained
MountingBushing 15/32 in (0.47 in) Ø
CircuitrySPST, SPDT, DPST, DPDT, 4PST, 4PDT
TerminationsScrew, solder, quick connect
ContactsSilver alloy, gold plated
Amp ratingUp to 20 A (resistive)
ApprovalsUL, CSA, CE
Measurement26,7 mm H  x 33,5 mm W x 22,6 mm D [1.05 in H x 1.32 in W x 0.89 in D]

Table 2. UL and CSA Electrical Ratings


Rating codeElectrical rating
L19210 amps, 125, 250, 277 Vac; ¼ Hp, 125 Vac; ½ Hp, 250, 277 Vac; 3 amps, 125 Vac “L”
L19115 amps, 125, 250, 277 Vac; ½ Hp, 125 Vac; 1 Hp, 250, 277 Vac; 5 amps, 125 Vac “L”

Table 3. Electrical Ratings (in amperes)


Electrical rating code28 Vdc115 Vdc250 Vdc115 Vac, 60 Hz & 400 Hz Max.230 Vac

Ind.Res.LampRes.Res.Ind.Res.LampRes.
1
12 20 0.75 0.5 10 15 6
210 15 0.75 0.5 15 6
315 20 0.75 0.5 15 15 6
410 18 0.75 0.5 11 26
512 20 0.75 0.5 15 15 46
610 18 0.75 0.5 11 26



NT系列鈕子開關(guān)樣本下載↓


鈕子開關(guān)honeywell-sensing-micro-switch-nt-toggle-product-sheet-005429-5-EN.pdf





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