S1901 panel-mounted electrical key switch in the 2no + 2nc configuration, with metal-headed keys. The key controls an electrical contact mechanism. Match the selected function and supplier drawing to your circuit.

Specifications

Supplier model	S1901
Configuration code	S1901-2801-Y2O2C-MT
Nominal panel size	19 mm
Key head	Metal
Configuration	2NO + 2NC
Mounting	Threaded panel mount
Supplier selected-model rating	4 A at 125 V AC
Terminals	4

Package contents

Select 1 Set, 10 Sets or 100 Sets. Each set includes one electrical key switch and the two keys pictured for that configuration. All items in a quantity pack have the same specification.

Selection and installation

Key-removal behavior follows the selected supplier function drawing. Confirm keying requirements with sales for repeat orders.

Verify the terminal function and current rating for the selected model before installation. Family-title electrical ratings are not applied to every configuration.

Shipping & Returns

Shipping rates and delivery options are calculated at checkout.

For return inquiries, please contact us.

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S1901 19 mm 2NO + 2NC Key Switch — product and supplied contents

S1901 19 mm 2NO + 2NC Key Switch — supplier dimensions and installation reference

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Variant	Variant total	Quantity	Price	Variant total
1 Set	1 Set $14.70/ea	$0.00	Quantity	$14.70/ea	$0.00

10 Sets	10 Sets $139.65/ea	$0.00	Quantity	$139.65/ea	$0.00

100 Sets	100 Sets $1,323.00/ea	$0.00	Quantity	$1,323.00/ea	$0.00