Series LB

Standard Size Snap-in Pushbuttons

D57

D

www.nkkswitches.com

OPTIONAL ACCESSORIES

Barriers

Protective Guard

AT497

End

Material: Polyamide

Material: Polyamide

Protective Guards reduce depth of switch behind panel by .020” (0.5mm).

AT499

Square

Protective Guard

Opens 90°

Closes manually

AT498

Center

Cutouts for More Than 1 Switch

Square

A = .752” (19.1mm) x Number of Switches + .051” (1.3mm)

Rectangular

A = .996” (25.3mm) x Number of Switches + .051” (1.3mm)

A

(16.2)

.638

(20.0)

.787

Center Position

End Position

(19.2)

.756

(1.19)

.047

(19.2)

.756

(23.5)

.925

(5.2)

.205

(4.3) Typ

.169

(15.0)

.591

(1.19)

.047

(17.0)

.669

(20.0)

.787

(10.0)

.394

(21.0)

.827

(8.0)

.315

Cap Height

When

Assembled

(14.0) Sq

.551

(17.9) Sq

.705

(18.4)

.724

(20.4)

.803

(10.5)

.413

(20.5)

.807

(7.5)

.295

Cap Height

When

Assembled

180°

(17.9)

.705

(14.2)

.559

(17.9)

.705

(7.1)

.280

(20.4)

.803 (N)

(16.2) Sq

.638

(39.0) Min*

1.535

(N) = Number of switches

AT4171

(10.5)

.413

(20.5)

.807

(20.4)

.803

* Minimum dimension allows opening of cover to 180°

Spring Loaded Protective Guard

AT4171

Square

Protective Guard

Opens 180°

Closes automatically

Materials:

Cover: Clear Polycarbonate

Base: Black GFR Polyamide

Coil Spring: Stainless Steel

Recommended Panel Thickness:

.039” ~ .106” (1.0mm ~ 2.7mm)