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Timing Relays (RTW/ERWT)
6
Electronic devices that allow switching an output signal according to the timing range function and
selected time. Designed according to international standards, they are available in 22.5 mm wide
housings and can be mounted on DIN rails 35 mm or fixed with screws (PLMP accessory required) -
available with one or two NOC outputs. They can be used in various types of industrial applications,
such as electric motor starters, control panels, industrial furnaces and die casting machines. They can
also be used in residential and commercial applications.
Selection
ERWT - MF1 02 - MT1 - E05
RTW Single or multiple timing relay
ERWT Multifunction timing relay
Number of output contacts
01 1 NOC contact
4)
02 2 NOC contacts
Timing
U001S 0.1 - 1s
5)
U003S 0.3 - 3s
U010S 1 - 10s
U030S 3 - 30s
U060S 6 - 60s
U100S 10 - 100s
U300S 30 - 300s
U010M 1 - 10min
6)
U030M 3 - 30min
6)
MAT 0.1s - 10min
7)
MBT 0.2s - 150h
7)
MT1 0.1s - 10 dias
8)
Selection of the function
RE Delay and impulse
PE Impulse ON
CI Flasher 2 settings, start ON
1)
CIR Flasher 2 settings, start OFF
1)
CIL Flasher 1 setting, start ON
CID Flasher 1 setting, start OFF
RD OFF-delay with control signal
RDI OFF-delay
1)
ET Star-delta
2)
MF1 8 configurable functions
3)
A ON-delay
Ba ON-delay with control signal
Ca ON-delay and OFF-delay with control signal
Da Symmetric flasher, start ON
Db Asymmetric flasher, start OFF
E Impulse ON with control signal
G Star-delta
MF2 8 configurable functions
3)
Dc Asymmetric flasher, start ON
Dd Asymmetric flasher, start OFF
De Percentage flasher, start ON
Df Percentage flasher, start OFF
Dg Flasher for motor reversing
Cb ON-delay and OFF-delay with control signal and independent settings
Ia Delayed adjustable-length pulse
J Bistable
Power supply selection
Alternating (50/60 Hz) / Direct
Code Description Applicable RTW
E26 24 V ac / 24 V dc RE, PE, CI, CIR, CIL, CID, ET
E33 48 V ac / 24 V dc RE, PE, CI, CIR, CIL, CID, ET
E37 110-130 V ac / 24 V dc RE, PE, CI, CIR, CIL, CID, ET
E40 220-240 V ac / 24 V dc RE, PE, CI, CIR, CIL, CID, ET
E05
9)
24-240 V ac / 24-240 V dc RE, PE, CI, CIR, CIL, CID, ET, RD, RDI
Alternating current (50/60 Hz)
Code Description Applicable RTW
10)
D02 24 V ac RD
D07 48 V ac RD
D61 110-130 V ac RD
D66 220-240 V ac RD
D71 380-440 V ac RE, PE, ET
Continuous voltage
Code Description Applicable RTW
C03 24 V dc RD
Notes: 1) Not available for multiple timing relays (RTW-M);
2) For single timing RTW-ET relays, only the 3 - 30 s timing range selection is available (U030S).
For multiple timing RTW-ET relays, only the 0.1s - 10min timing selection is available (MAT);
3) MF1 and MF2 available only for ERWT multifunction relays;
4) Not available for the star-delta relays (RTW-ET) and multifunction relays (ERWT-MF1, MF2);
5) Timing range U001S (0.1 - 1s) not available for the RTW-CI, CIR, RD and RDI relays;
6) Timing range U010M (60 - 600s) and U030M available only for the RTW-RDI relays;
7) Timing ranges MAT/MBT available only for the RTW-RE, PE, RD, CIL, CID or ET relays;
8) Timing range MT1 available only for ERWT-MF1 and MF multifunction relays;
9) For all single timing relays: RTW-CI, CIR and RDI.
For the multiple timing relays (MAT/MBT): RE, PE, CI, CIL, CIR, CID, RD and ET.
For multifunction relays: MF1 and MF2;
10) Only single timing relays.
TIMING RELAYS