Itw Tamper-proof pushbutton 125 V 0.125 A 1 x Off/(On) IP67 momentary 25 pc(s) 57-111 Data Sheet

The Series 57 is a range of miniature, momentary action, rugged panel sealed push-button
switches with a round button and bezel.

The Series is available with or without LED status illumination. A locknut is supplied with each
switch.

The body and button are manufactured from a non-spark zinc alloy and are velour chrome
plated. It is panel sealed to IP67 and is designed to be impact resistant. The small size,
robustness and panel sealing make this switch ideal in harsh environments.

Status Illuminated Version

The illuminated version is available with a choice of 2 high brightness LED colours.

Travel (nom)

2.3 mm

Life (nom)

1,000,000 cycles

Operating force (nom)

3N

Contact bounce (nom)

1ms

Panel thickness (max)

3 mm

Ingress protection

IP67 (panel sealed)

Shock

100g

Vibration

DEF STD 07-55

Non-Illuminated

Operating temperature range

-40°C to +125°C

SWITCH

Dielectric strength

1000V a.c.

Insulation resistance

1G

Ω

Contact resistance (initial)

50m

Ω

Current rating (typical)

400mA at 32V a.c. resistive
100mA at 50V d.c. resistive
125mA at 125V a.c. resistive

Life (min)

500,000 cycles

Switching power (max)

16VA a.c.

LED
Typical fwd voltage (Vf at I operating)

2,2V

Max fwd voltage (Vf at I operating)

3,0V

Forward current (I operating)

20mA

Meantime between failures

100,000 hours

Luminous intensity (Iv at lopr)

Red LED – 100mcd

Luminous intensity (Iv at lopr)

Green LED – 160mcd

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