Data sheet
089
Electronic time relays
ATI, BTI, SDT and MTI
With their robust design and many built-in
functions, electronic timers ATI, BTI, SDT and MTI
are ideal for OEMs and panel builders.
Features
Approvals
• Easy time setting
• Electrical noise immunity
• Mechanical shock and vibration resistance
• Time ranges 0.1 s to 30 min for single function
Time ranges 0.05 s to 300 h for multi function
Electronic timers
• Compact standard dimensions
• DIN rail or adaptor mounting
• Single function electronic timers featuring:
– ON delay
– OFF delay or
– star-delta start
• Multi function timer with 10 timing functions
• Function selector
CE
EAC
•
•
•
•
•
•
•
pulse function
•
symmetrical
•
•
• Output relay R (On LED = yellow)
• Output relay R (On LED = yellow)
• U/T supply voltage (established LED = green)
• ”Inst“ switch (changes output relay R2 to
instantaneous relay).
cULus
LLC CDC TYSK
= ON delay
= OFF delay
= pulse with ON delay
= pulse with OFF delay
= flasher relay with pause start
= flasher relay with pulse start
= star-delta starters with
= ON-delay and OFF-delay,
= Pulse former
= ON/OFF-Function
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Data sheet | Electronic time relays ATI, BTI, SDT and MTI
Ordering
ON-delay electronic timers
Type Time range Voltage range Contact function Code no.
220 – 240 V AC, 50 – 60 Hz
0.1 – 10 s
24 V DC
220 – 240 V AC, 50 – 60 Hz
0.3 – 30 s
ATI
3 – 300 s
0.3 – 30 min.
OFF-delay electronic timers
Type Time range Voltage range Contact function Code no.
3 – 300 s
BTI
Star-delta electronic timers
Type Time range Voltage range Contact function Code no.
SDT 0.3 – 30 s
0.3 – 30 s
3 – 300 s
24 V DC
220 – 240 V AC, 50 – 60 Hz
24 V DC
220 – 240 V AC, 50 – 60 Hz
24 V DC
24 V AC, 50 – 60 Hz
24 V DC
220 – 240 V AC, 50 – 60 Hz
220 – 240 V AC, 50 – 60 Hz
110 – 130 V AC, 50 – 60 Hz
220 – 240 V AC, 50 – 60 Hz
24 V DC
380 – 415 V AC, 50 – 60 Hz
1 changeover
1 changeover
1 changeover
047H309224 V AC, 50 – 60 Hz
047H310424 V AC, 50 – 60 Hz
047H309324 V AC, 50 – 60 Hz
047H310524 V AC, 50 – 60 Hz
047H3095
047H3107
047H3099
047H3110
047H311124 V AC, 50 – 60 Hz
047H3112
Multi function electronic timers
Type Time range Voltage range Contact fuction Code no.
MTI 0.05 s – 300 h
24 – 240 V AC, 50 – 60 Hz
24 – 48 V DC
2 changeover 047H3077
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Data sheet | Electronic time relays ATI, BTI, SDT and MTI
Technical data
Type designation ATI BTI SDT MTI
Output circuit
Changeover switch 1 1 1 2
Max. A on 250 V 4 4 4 4
AC-15 on 230 V (A) 1.5 1.5 1.5 3
AC-15 on 415 V (A) 0.25
DC-12 on 24 V (A) 4 4 4 4
DC-13 on 24 V (A) 2 2 2 2
Input
•
•
•
•
Supply voltage
AC/DC 24 V
DC 24 – 48 V AC 24 – 240 V
AC/DC 24 V AC 220 – 240 V
AC 110 – 130 V
AC 220 – 240 V
AC 380 – 415 V
• •
• •
Voltage tolerance -10% – 10% -15% – 10%
Frequency 50 – 60 Hz
Duty rating Continuous
AC/DC 24 V 1.0 VA / W
Consumption
AC 220 – 240 V 12.0 VA
AC 380 – 415 V 23.0 VA
Time circuit
0.1 – 10 s 0.3 – 30s
Time ranges
0.3 – 30 s 0.15 – 3 s 0.05 – 1 s 1.5 – 30 s
3 – 300 s 5 – 100 s 5 – 100 s
0.3 – 30 min.
0.5 – 10 s 15 – 300 s
10 time ranges in each unit 15 – 300 h
Reset time (dwell time) < 100 ms 400 ms 80 ms
Control pulse time > 20 ms
Y/D changeover time 30 ms 50 ms
Repeat accuracy < 1% 0.2%
Time deviation within voltage tolerance < 0.5% 0.004% / V
Time deviation within temperature range
Ambient
temperature
operation -20 °C – 60 °C -25 °C – 60 °C
storage -40 °C – 80 °C -40 °C – 85 °C
<
0.1% / °C 0.03% / °C
1.5 – 30 min.
1.5 – 300 min.
1.5 – 30 min.
Control contact Y1 – Z2
No-load voltage 10 – 40 V DC
Remote pot.meter connection Z1 Cable screen
Z2 to screen
Potentiometer resistance 50 KΩ
2 x 25 m shielded with 100 pF/m
LED indication
Supply voltage, green
Supply voltage, green/flashes when timg
Output relay R, yellow
Outout relay R, yellow
• • • •
•
•
•
Other data
Installation DIN rail
Enclosure, housing/terminals IP50 / IP20
Installation orientation Any
Mechanical life 30 x 10
6
Electrical life, ohmic load 100,000 operations on 8 A, 230 V AC 100,000 operations on 4 A, 230 V AC
Max. fuse 2 A, gl 6 A, gl
Max. lead cross-section 2 × 1.5 mm
2
2 × 2.5 mm
2
Test voltage 2.5 kV, 50 Hz, 1 s 2.0 kV, 50 Hz, 1 s
EMC Directive 2004 / 108 / EC
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Data sheet | Electronic time relays ATI, BTI, SDT and MTI
089
Load graphs,
electronic time relays
ATI, BTI, SDT, MTI
Reduction factor F for inductive load on timers
Electrical life (N), AC-1 load
DC load (DC-1)
Approvals
Product type
ATI / BTI / SDT
MTI
• Approved
Approval
authority
EN 60947 E AC
UL-listed
CANADA
USA
LLC
CDC
TYSK
4 | IC.PD.C00.E6.02
© Danfoss | DCS (im) | 2018.03
Data sheet | Electronic time relays ATI, BTI, SDT and MTI
Contact symbols and
terminal markings
On- delay ATI On-delay (terminal marking) ATI
Electronic timers
Off-delay - BTI Off-delay (Terminal marking) - BTI
Star-delta timer - SDT Star-delta timer (Terminal marking)
Multi function timer - MTI (with 2 changeover contacts) Multi function timer (Terminal marking) - MTI
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Data sheet | Electronic time relays ATI, BTI, SDT and MTI
Function overview,
electronic time relays
supply on and contact made
n
t set time
supply on and contact made
n
t set time
ON delay
When voltage is applied to A1/A2 the time interval begins.
When the time interval elapses, the output relay is energised and
remains energised until the voltage supply is cut off.
With 24 V supply, terminals A1 and B1 must be used.
OFF delay
The supply must be connected to A1/A2 and remain established. Time
interval start is controlled by a contact on terminal Y1.
When the contact is made, the output relay is energised. When the contact is broken, the time interval starts (control pulse length min. 20 ms).
When the set time interval elapses, the output relay drops back to its
dwell position. If the control contact for terminal Y1 makes during the
time interval, the interval is stopped. If the contact is broken again, the
time interval starts anew.
Note! External load must not be connected so that it is supplied via
control contact Y1.
supply on and contact made
n
t set time (Y-operation)
tchangeover pause (approx. 30 ms)
Star-delta relay
When voltage is applied to A1/A2 the time interval starts.
When the time interval elapses, the output relay energises.
The Y-contactor switch-off and after a dwell time of 30 – 35 ms the
D contactor switch-in.
With 24 V supply, terminals A1 and B1 must be used.
6 | IC.PD.C00.E6.02
© Danfoss | DCS (im) | 2018.03
Data sheet | Electronic time relays ATI, BTI, SDT and MTI
MTI multi functions with two contacts
supply on and contact made
n
ON delay
When supply voltage is applied to A1/A2, the set time interval begins.
The green LED flashes for the duration of the interval. When the
interval elapses, the output relay is energised and the green LED lights
up constantly. The output relay remains activated until supply voltage
is cut off.
With permanent supply voltage, start and stop of the time interval can
also be controlled by breaking or making control contact Y1/Z2.
If control input Y1/Z2 closes before the time delay is complete, the time
delay is reset and the output relay remains de-energized. If control
supply voltage is interrupted, the output relay de-energizes and the
time delay is reset.When the red slide switch is brought to position
„Inst.“ changeover switch R2 is immediately activated when supply
voltage is applied and remains activated until the supply is cut off.
Note! Control contacts Y1/Z2 must be potential-free.
supply on and contact made
n
Pulse relay with ON delay
When supply voltage is applied to A1/A2 the output relay is immediately energised and remains activated until the set time interval has
elapsed. The green LED flashes for the duration of the interval. When
the time interval elapses, the output relay drops back to its dwell position and the green LED lights up constantly.
With permanent supply voltage, start and stop of the time interval can
also be controlled by making or breaking control contact Y1/Z2.
If control input Y1/Z2 closes before the time delay is complete, the
time delay is reset and the output relay remains de-energized. If control
supply voltage is interrupted, the output relay de-energizes and the
time delay is reset.
When the red slide switch is brought to position „Inst.“ changeover
switch R2 is immediately activated when supply voltage is applied and
remains activated until the supply is cut off.
Note! Control contacts Y1/Z2 must be potential-free.
Flasher relay with pulse begins
When supply voltage is applied to A1/A2 the time relay flasher function
begins, in accordance with the set symmetrical pause-pulse time.
The green LED flashes for both pause and pulse, but with double flash
frequency during pauses.
With permanent supply voltage, start and stop of the flash sequence
can also be controlled by breaking or making control contact Y1/Z2.
When the red slide switch is brought to position „Inst.“ changeover
switch R2 is immediately activated when supply voltage is applied and
remains activated until the supply is cut off.
Note! Control contacts Y1/Z2 must be potential-free.
© Danfoss | DCS (im) | 2018.03
supply on and contact made
n
t set time
IC.PD.C00.E6.02 | 7
Data sheet | Electronic time relays ATI, BTI, SDT and MTI
supply on and contact made
n
supply on and contact made
n
Flasher relay with pause begins
When supply voltage is applied to A1/A2 the time relay flasher function
begins, in accordance with the set symmetrical pause-pulse time.
The green LED flashes for both pause and pulse, but with double flash
frequency during pauses.
With permanent supply voltage, start and stop of the flash sequence
can also be controlled by breaking or making control contact Y1/Z2.
When the red slide switch is brought to position „Inst.“ changeover
switch R2 is immediately activated when supply voltage is applied and
remains activated until the supply is cut off.
Note! Control contacts Y1/Z2 must be potential-free.
OFF delay
The supply voltage must be connected to A1/A2 and remain established.
The output relay is energised immediately. Time interval start is controlled
by a contact on Y1/Z2.
(Note: No foreign voltage permissible).
When the contact is broken, the time interval begins. The green LED
flashes for the duration of the interval. When the set time interval has
elapsed, the output relay drops back to its dwell position and the green
LED lights up constantly.
If control input Y1/Z2 closes before the time delay is complete, the time
delay is reset and the output relay remains de-energized. If control supply
voltage is interrupted, the output relay de-energizes and the time delay is
reset.
When the red slide switch is brought to position „Inst.“ changeover switch
R2 is immediately energised when supply voltage is applied and remains
activated until the supply is cut off.
Note! Control contacts Y1/Z2 must be potential-free.
supply on and contact made
n
Pulse relay with OFF delay
The supply voltage must be connected to A1/A2 and remain established.
Closing control input Y1/Z2 energizes the output relay immediately and
starts timing. Operating the control contact switch Y1/Z2 during the time
delay has no effect.
The green LED flashes for the duration of the interval. When the selected
ON time is complete, the output relay de-energizes and the flashing green
LED turns steady. After the ON time is complete, it can be restarted by
closing control input Y1/Z2.
When the red slide switch is brought to position „Inst.“ changeover switch
R2 is immediately energized when supply voltage is applied and remains
activated until the supply is cut off .
Note! Control contacts Y1/Z2 must be potential-free.
Star-delta changeover with pulse function
When supply voltage is applied to A1/A2, output relay R1 is energised
immediately. When the set time interval elapses, output relay R1 drops
back to its dwell position. After a further 50 ms, output relay R2 is
energised and remains cut in as long as the supply is on.
The green LED flashes for the duration of the time interval.
8 | IC.PD.C00.E6.02
supply on and contact made
n
t set time t1 + t2
t2 changeover pause (approx. 50 ms)
© Danfoss | DCS (im) | 2018.03
Data sheet | Electronic time relays ATI, BTI, SDT and MTI
supply on and contact made
n
Symmetrical ON and OFF-delay
The supply voltage must be connected to A1/A2 and remain established.
Time interval start is controlled by a contact on Y1/Z2.
Closing control input Y1/Z2 starts the ON-delay t1. When timing is
complete, the output relay energizes. Opening control input Y1/Z2 starts
the OFF-delay t2. Both timing
functions are displayed by the flashing green LED. When the OFF-delay
t2 is complete, the output relay de-energizes.
If control input Y1/Z2 opens before the ON-delay t1 is complete, the time
delay is reset and the output relay remains de-energized. If control input
Y1/Z2 closes before the OFF-delay t2 is complete, the time delay is reset
and the output relay remains energized.
When the red slide switch is brought to position „Inst.“ changeover switch
R2 is immediately energized when supply voltage is applied and remains
activated until the supply is cut off .
Note! Control contacts Y1/Z2 must be potential-free.
supply on and contact made
n
Pulse former
The supply voltage must be connected to A1/A2 and remain established.
Closing control input Y1/Z2 energizes the output relay immediately and
starts timing. Operating the control contact switch Y1/Z2 during the time
delay has no effect.
The green LED flashes for the duration of the interval. When the selected
ON time is complete, the output relay de-energizes and the flashing green
LED turns steady. After the ON time is complete, it can be restarted by
closing control input Y1/Z2.
When the red slide switch is brought to position „Inst.“ changeover switch
R2 is immediately energized when supply voltage is applied and remains
activated until the supply is cut off .
Note! Control contacts Y1/Z2 must be potential-free.
ON/OFF-function
This function is used for test purposes during commissioning and troubleshooting.
If the selected max. value of the time range is smaller than 300 h (front-face
potentiometer “Time sector” not 300 h), applying control supply voltage
energizes the output relay immediately and the green LED glows.
Interrupting control supply voltage, de-energizes the output relay. If the
selected max. value of the time range is 300 h (front-face potentiometer
“Time sector” = 300 h) and control supply voltage is applied, the green LED
glows, but the output relay does not energize.
Time settings and operating of the control inputs have no effect on the
operation.
© Danfoss | DCS (im) | 2018.03
supply on and contact made
n
IC.PD.C00.E6.02 | 9
Dimensions [mm]
Electronic timers ATI, BTI, SDT
Electronic timers MTI
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