WT18T-RO NKK Switches, WT18T-RO Datasheet - Page 6

• Manufacturer Part Number: WT18T-RO
• Description: Toggle Switches DPDT (ON)-OFF-(ON) Screw Lug Panel Mnt
• Manufacturer: NKK Switches
• Series: WTr

Specifications of WT18T-RO

• Contact Form: SPDT
• Switch Function: (ON) - OFF - (ON)
• Contact Rating: 10 Amps at 125 VoltsAC, 30 VoltsDC, 6 Amps at 250 VoltsAC
• Termination Style: Screw Lug
• Mounting Style: Panel
• Terminal Seal: Epoxy
• Contact Plating: Silver
• Actuator: Bat
• Current Rating (max): 6 Amps, 10 Amps
• Voltage Rating Ac: 125 VoltsAC, 250 VoltsAC
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 633-WT18T WT-18AT WT18T

Environmentally Sealed Toggles
Note: When using boot assemblies
AT401A/H/S or AT4181, also use o-ring AT401P from the standard hardware supplied.
Hex face nut AT503M and lockwasher AT508 are not used with these boot assemblies.
AT503M Hex Face Nut
Material: Brass with Chrome Plating
1 supplied with each switch
AT401A for Oil Resistance
Boot Material:
Black nitrile butadiene rubber
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
AT4181 Splashproof Boot Assembly
Boot Material:
Black Silicon rubber
Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
(13.2)
.520
(12.5) Dia
.492
(16.0)
.630
(3.5)
.138
(11.2)
.441
(11.7)
.461
~
.063
(1.6) Max
(5.5)
.217
(10.0)
.394
M12 P1
.094
(2.4)
(14.3)
.563
Maximum Effective Panel Thickness
Boot Assemblies for High Particulate Contamination Applications
(17.5) Dia
.689
(16.0) Dia
.630
(17.0) Dia
.669
PANEL CUTOUT & THICKNESS
AT401H for Dust & Ozone Resistance
Boot Material:
Gray ethylene propylene rubber
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
.039
AT508 Internal Tooth Lockwasher
Material: Steel with Zinc/Chromate
1 supplied with each switch
OPTIONAL ACCESSORIES
(24.3)
(1.0)
.957
STANDARD HARDWARE
(18.6)
.083
.732
(2.1)
Boot
Hex Nut
O-ring
Panel
O-ring
.039
(1.0)
(14.8)
.583
(8.0) Dia
.315
www.nkk.com
(11.7)
.461
With Standard Hardware: .157” (4.0mm)
With optional Boot Assembly AT401A/H/S: .063” (1.6mm)
With optional Boot Assembly AT4181: .083” (2.1mm)
(12.1) Dia
.476
(13.8) Dia
.543
(10.0)
.394
(12.1)
.476
(0.5)
.020
(15.8) Dia
.622
(13.8) Dia
.543
(21.5) Dia
.846
Boot
O-ring
Panel
O-ring
(16.0) Dia
.630
(17.5) Dia
.689
(17.0)
.669
.059
(1.5)
M12 P1
(24.3)
AT401P O-ring
Material: Natural Rubber
1 supplied with each switch
AT401S for Retention of Flexibility,
Resilience & Tensile Strength
Over Wide Temperature Range
Boot Material: Black silicone rubber
Hex Nut Material & Finish:
Nickel plated brass
O-ring Material: Natural rubber
.957
Boot
Hex Nut
O-ring
(18.6)
.732
(12.1) Dia
.476
(14.8)
.583
Series WT
(17.5) Dia
.689
(21.5) Dia
.846
(12.1) Dia
.476
(8.0) Dia
.315
.059
(1.5)
.039
(1.0)
M12 P1
(17.5) Dia
.689
Boot
& Nut
O-ring
A129
A