The Schneider Electric LA9FF4TKF100D3 is a 100 VA control transformer, stepping 208 V primary down to 120 V secondary, designed as an accessory for TeSys D, K, and F contactor ranges. It supplies the coil circuit for contactors in a panel, so the control voltage stays isolated from the line side.
Schneider LA9FF4TKF100D3 Contactor Access Transformer, 208-1
MPNLA9FF4TKF100D3
Obsolete
Schneider Electric TeSys, contactor accessory transformer, LA9FF4TKF100D3, 208-120V 100VA.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Category | 22341-CONTACTOR,D,K,&F ACCESS |
Product details
Frequently asked questions
What is the closest alternative to LA9FF4TKF100D3?
The evidence does not list an official successor or a pin-compatible alternative. For a replacement, the panel's control transformer requirements (208 V primary, 120 V secondary, 100 VA) define the parametric match; a sourcing specialist can cross-reference against active TeSys transformer offerings.
What is the listed category for this part?
Category 22341-CONTACTOR,D,K,&F ACCESS — it is an accessory for the TeSys D, K, and F contactor families.
MPN
LA9FF4TKF100D3