Datasheet

ESG 2.9
Multifunctional clock-pulse generator relay
MFT T21S, MFT T51SE
Type key
MFT T 5 1 S E
Functions
U Universal
A Without auxiliary voltage
T Cycling timer
S Star-delta
D Digital
Output
1 1 changer
2 2 changers
3 1 changer / 1 immediate contact
4 1 changer / 1 closing contact
5 1 closing / 1 opening contact
Special functions
E External potentiometer
Control
S Voltage control
P Potential free
Connecting voltage
1 24 Vdc/ac and
110 ... 240 Vac
2 12 ... 240 Vdc and
24 ... 240 Vac
Technical data
Nominal consumption
24 Vac/dc 1,5 VA / 1 W
110 Vac 2 VA / 1 W
240 Vac 11 VA / 1,4 W
Control contact / Voltage controlled
Parallel switching of loads possible
Parallel minimum load 1 VA or 0,5 W
Voltage dependence: The potential between connections 2 and 5, resp. 7 and 5, must
cover 90% of the supply voltage.
Connecting length between connections 10 and 5: 10 m or capacity <10 nF
Resistance >1 MW (contact K2 open)
Rest current at parallel load: approx. 2 mA at contact K2 open
Accuracy
Scale limit stops ±0,5%
Repeatability
of the scale limit at constant conditions ±5 ms or <0,5%
Adjustment accuracy ≤5%
Temperature influence ≤0,01% / °C
Reaction times
Operating/return time K1 max. 60 ms / 30 ms
Reaction time K2 max. 30 ms
Min. pulse/pause time K2 ac >50 ms /
dc >20 ms
Recovery time max. 90 ms