  We discuss low-energy and collider constraints on the effective couplings
characterizing non-standard charged current interactions. A direct comparison
of low-energy and LHC probes can be performed within an effective theory
framework, when the new physics mediating these interactions originates in the
multi-TeV scale. We find that for the effective couplings involving
right-handed neutrinos the LHC bounds from pp -> e+MET+X are at the
(sub)percent level, already stronger than those from beta decays. For operators
involving left-handed neutrinos, the (axial-)vector and pseudo-scalar effective
couplings are best probed at low energy, while scalar and tensor couplings are
currently probed at the same level by beta decays and the LHC channels pp ->
e+MET+X and, by using SU(2) gauge invariance, pp -> e^+e^- +X. Future beta
decay experiments at the 0.1% level or better will compete in sensitivity with
higher statistics and higher energy data from the LHC.
