Description
3.3 Device versions
3RP25 Time Relays
16
Manual, 09/2019, A5E31947765002A/RS-AC/003
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Two-wire timing relays
In conjunction with contactors, they have the following advantages compared to
conventional timing relays:
–
Reduced wiring
–
Bounce-free control
–
The solid-state output enables increased service life as there is no mechanical wear
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Multifunction timing relay with 1 CO contact and 13 functions (A-M) or 2 CO contacts and
27 functions (A-M + YD). The unit can be set as a 2 CO contact unit (2CO) or 1 CO
c 1 CO contact unit (1CO+1CO):
Function - 1CO: 1 CO contact
- 1NO: 1 NO contact
- 2CO: 2 CO contacts, parallel contacts
- 1CO+1CO: 1 CO contact d 1
instantaneous CO contact
- Star-delta (wye-delta) function
A
ON-delay
ON-delay
and instantaneous contact
B
OFF-delay with control signal
OFF-delay with control signal
and
instantaneous contact
C
ON-delay and OFF-delay with control
signal
ON-delay and OFF-delay with control signal
and instantaneous contact
D
Flasher relay, symmetrical, starting with
interval
Flasher relay, symmetrical, starting with
interval
and instantaneous contact
E
Passing make contact, interval relay
Passing make contact, interval relay
and
instantaneous contact
F
Retriggerable interval relay with
deactivated control signal (passing
break contact with control signal)
Retriggerable interval relay with deactivated
control signal (passing break contact with
control signal)
and instantaneous contact
G
Passing make contact with control
signal, not retriggerable, (pulse-forming
with control signal)
Passing make contact with control signal, not
retriggerable, (pulse-forming with control
signal)
and instantaneous contact
H
Additive ON-delay, instantaneous OFF
with control signal
Additive ON-delay, instantaneous OFF with
control signal
and instantaneous contact
I
Additive ON-delay with control signal
Additive ON-delay with control signal
and
instantaneous contact
J
Flasher relay, symmetrical, starting with
pulse
Flasher relay, symmetrical, starting with pulse
and instantaneous contact
K
Pulse-delayed (pulse and pulse delay
adjustable)
Pulse-delayed (pulse and pulse delay
adjustable)
and instantaneous contact
L
Pulse-delayed with control signal (pulse
and pulse delay adjustable)
Pulse-delayed with control signal (pulse and
pulse delay adjustable)
and instantaneous
contact
M (GND) Retriggerable interval relay with
activated control signal (watchdog)
Retriggerable interval relay with activated
control signal
and instantaneous contact
(watchdog)
YD
Star-delta (wye-delta) function
