The Siemens SENTRON 3VA9877-0GX42 is an auxiliary switch module designed for use with 3VA57, 3VA58, 3VA59, 3VA67, 3VA68, and 3VA69 rotary operators. It provides two auxiliary switches for signaling the ON-to-OFF position of the main breaker. Rated for a thermal current of 5 A, the contacts carry AC-12 resistive loads at 5 A across 12 V to 240 V, AC-15 inductive loads at 2 A across the same voltage range, and DC-13 solenoid loads at 0.2 A from 12 V up to 250 V. The minimum DC operating voltage is 250 V, meaning the DC ratings apply only at or above that level.
Siemens SENTRON 3VA9877-0GX42 Auxiliary Switch Module, 5 A
MPN3VA9877-0GX42
Active
Siemens SENTRON auxiliary switch module, 3VA9877-0GX42, 2 aux switches, 5 A thermal current, for 3VA57/58/59/67/68/69 rotary operators.
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
Identification
| Parameter | Value |
|---|---|
| Accessories | Auxiliary switch module |
Product details
Frequently asked questions
What are the key ratings for 3VA9877-0GX42?
The module is rated for a thermal current of 5 A, with AC-12 contacts at 5 A, AC-15 contacts at 2 A, and DC-13 contacts at 0.2 A across the applicable voltage ranges. Operating temperature is -40 °C to 80 °C.
Where can I buy 3VA9877-0GX42?
The 3VA9877-0GX42 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What breakers does 3VA9877-0GX42 fit?
It is designed for Siemens SENTRON 3VA57, 3VA58, 3VA59, 3VA67, 3VA68, and 3VA69 rotary operators.
MPN
3VA9877-0GX42