Basic HTML Version
5/40
Technical
Section 9
Dimensions
Section 10
RTA, RTB, RTC, RTH, RTL and
RTMF time delay relays
Time management
5
Technical data
Time delay range:
0.1 s to 100 h
Control circuit:
Control and supply voltage:
- 24 V DC ±10 %
- 24..40 V AC ±10 %
- RTMF: 12..240 V AC/DC ±10 %
Frequency:
50…60 Hz
Operating temperature:
-5…+55 °C
Power circuit:
Changeover switch (without cadmium)
- minimum rating: 10 mA/5 V DC
- maximum rating: 8 A/250V DC
and 8 A/250 V AC
Mechanical durability:
> 5.106 operations
Electrical durability:
> 105 operations (utilisation category AC1)
Accuracy:
±10 % full scale
Minimum control
100 ms
impulse duration:
Maximum resetting
100 ms
time by voltage break:
Repetition accuracy:
±0.5 % with constant parameters
Visualisation of contact status by green indicator light (flashing during the time
delay)
Unaffected by brownouts <20 ms
Case protection:
IP40
Connection by
2 x 2.5 mm
2
single-strand cable without end
tunnel terminals:
2 x 1.5 mm
2
multi-strand cable with end
Specific technical data
RTA
Delays energisation of a load
The single time delay cycle starts on energisation of the supply of the RTA relay
The load is energised at the end of time delay T
RTB
Applies a time delay to energisation of a load on closing of an auxiliary contact
(pushbutton)
The single time delay cycle starts on closing of an auxiliary contact (pushbutton)
At the end of time delay T, the load is de-energised
RTC
Delays energisation of a load on closing of an auxiliary contact (pushbutton)
The single time delay cycle only starts when an auxiliary contact is released
(pushbutton)
At the end of time delay T, the load is de-energised
RTH
Applies a time delay to energisation of a load
The single time delay cycle starts on energisation of the supply of the RTH relay
The load is de-energised at the end of time delay T
RTL
Applies a time delay to energisation and de-energisation of a load for different
periods of time, repeatedly (flashing indicator)
The time delay cycle starts on energisation
The load is energised for an adjustable time T1, then de-energised for an
adjustable time T2. This cycle is repeated until the RTL relay supply is
de-energised
RTMF
Lets you select one of the 4 time delay types: A, B, C or H
As applicable, the RTMF generates the time delay cycles of the RTA, RTB, RTC or
RTH relays