The LX4FF045 is a DC low-consumption contactor coil from the TeSys range, designed as a service part for FF-frame contactors. It operates on a 45 V DC control circuit, with closing time between 30 and 40 ms and opening between 30 and 50 ms — a tight window that matters when coordinating interlocking or safety circuits on the same panel. The coil draws an inrush resistance of 3.45 Ω at 68 °F (20 °C), dropping to 621.7 Ω in the holding state. Dropout occurs between 0.15 and 0.2 Uc at 131 °F (55 °C).
TeSys LX4FF045 Contactor Coil, 45 V DC, Active Production
MPNLX4FF045
Active
Schneider Electric TeSys LX4FF045 contactor coil, 45 V DC, 30-40 ms closing, 30-50 ms opening, active production.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product type | Contactor coil |
| Product range | TeSys |
| Device short name | LX4FF |
| Coil technology | Without built-in suppressor module |
| Parameter | Value |
|---|---|
| Control circuit voltage [Uc] | 45 V DC |
| Control circuit type | DC low consumption |
| Control circuit voltage limits | Operational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.15...0.2 Uc 131 °F (55 °C)) |
| Coil resistance (avg.) | 3.45 Ohm inrush 68 °F (20 °C) 621.7 Ohm holding 68 °F (20 °C) |
| Parameter | Value |
|---|---|
| Operating time | 30...40 ms closing 30...50 ms opening |
| Parameter | Value |
|---|---|
| Operating temperature | 23...131 °F (-5...55 °C) |
Product details
Frequently asked questions
What compliance documentation is available for this coil?
As a Schneider Electric TeSys service part, the LX4FF045 is covered by the manufacturer's standard declarations for RoHS, REACH, and CE marking. Specific certificates are available through the brand's documentation portal.
MPN
LX4FF045