Time relays – BT SERIES
Digital signal processing
Installation time relays
Electronic time relays from the BT product range offer ideal
solutions for industrial applications.
The BT product range provides the following functions:
Output of the time relays
In every module, a change-over contact (250 V, 8A) switches
the load. The multifunction module (BTM) activates both
change-over contacts immediately, or one change-over contact
immediately and the second after a delay.
BTM-Z
A1
15
B1
A1
15
B1
A1
15
C
•
•
•
•
•
Pick-up delay (BTR)
Pulse emitter (BTTT)
Multifunction (BTM)
Multifunction (BTMF)
Star-delta change-over
BTM-S
BTMF-Z/BTR-Z
BTTT-Z
A1
15
BTMF-S/BTR-S
BTTT-S
L
L
15
15
15
18
16
18
18
18
16
A2
16
16
A2
18
16
18
18
16
16
A2
15
Time ranges and power supply for time relays
Using the central knob, you can select the functions of the
modules precisely over either 4 or 8 time ranges.
The multi-voltage supply voltage range offers a wide bandwidth
for industrial use (see table).
(see note 1)
18
16
A2
(see note 1)
(DIN notation)
(DIN notation)
Note:
1. Pole numbers are not necessary for DC voltage supply.
2. The contact symbol of H3DS is marked with
as it
provides serveral operating modes and differs from the
delayed contacts of conventional time relays.
Time ranges
Display of time scale
0.1 s
1s
0.1 min
1 min
0.1 h
1h
10 h
Time range
0.1 to 1.2 s
1 to 12 s
0.1 to 1.2 min
1 to 12 min
0.1 to 1.2 h
1 to 12 h
10 to 120 h
Note:
If the rotary knob for time adjustment is set to “0”, the output will be
switched without delay.
C.112
Time relays – BT SERIES
Digital signal processing
Choosing the time range
The time range is chosen by turning the rotary switch for the
ON-time scale and OFF-time scale. The time scales are visible
in the display to the left of the rotary switch in the following
order:
0.1 s, 1 s, 0.1 m, 1 m, 0.1 h, 1 h.
45
Dimensions
73
C
80
Note:
The time scales “1 s” and “0.1 h” are given twice. Both
adjustments represent the same time scale.
44
Locking/unlocking of selectors and time setting dial
The rotary switches for the ON/OFF time adjustment and the
option selector for the time scale can be locked with the locking
key.
This pen-style special tool is available separately. To lock either
rotary switches or the option selector, simply insert the locking
key into the keyhole bottom right of the rotary switch/option
selector and turn it clockwise until the knob/switch is totally
covered by the red cover. To unlock, simply turn the key in the
opposite direction.
Screw connec-
tion
68
Tension clamp
connection
17,5
17,5
Connection system
The units offers the following connection technologies:
Screw connection
• 2 x 1.5 mm
2
with wire end ferrule
• 2 x 2.5 mm
2
without wire end ferrule
Tension clamp connection
• 2 x 1.5 mm
2
with wire end ferrule
• 2 x 2.5 mm
2
without wire end ferrule
C.113
Time relays – BT SERIES
Digital signal processing
Installation time relays
• Screw or tension clamp connection
• LED status indicator Input:
Output:
• Approvals
a
508
EN 61812-1
IEC 60947-5-1
IEC 60664-1
EN 55011
voltage present
output active
r
22.2 Nr. 14
IEC 60664-1
EN 61812-1
IEC 60947-5-1
EN 50082-2
C
Type designation:
B
T
R
=
Building
=
Timer
=
Response
Delay
Input
Rated voltage
Voltage tolerance
Breaking voltage
Power consumption per type
V AC
V DC
TT
=
Two Times
M
=
Multifunction,
8 ranges
MF
=
Multifunction,
4 ranges
DS
=
Delta, Star
S
Z
=
Screw
=
Tension
Reset time
Insulation
Insulation resistance
Insulation test voltage
between input and output, to enclosure
between non-adjacent contacts
Ingress protection class
Output
Contact/contact material
Switch output
Service life
mechanical min.
electrical min.
Time range
Repetition accuracy
Other data
Flammability class as per UL 94
Ambient temperature/storage temperature
Clamping range (nominal/min/max)
Length x width x height
mm
2
mm
Contacts hard gold plated
24 ... 230 V AC, 50/60 Hz, 24 ... 48 V DC
85 … 100 % of rated voltage
Max. 2.4 V AC/V DC
21 ... 33 VA at 230 V
0.6 ... 1.3 W at 24 V
Min. 0.1 s (BTDS: 0.5 s)
100 MΩ min, at 500 V DC
2000 V AC, 50/60 Hz, 1 min
1000 V AC, 50/60 Hz, 1 min
IP30, terminal block IP20
1 change-over contact (BTDS 2 NOC) / AgNi 90/10
5A at 250 V AC, resistive load (cos = 1)
10
7
switching cycles (no load, 1800/h)
10
5
switching cycles (5A at 250 V AC, resistive load at 1800/h)
0.10 s … 120 h
±1%
V-2
–10 …. +55 °C / –25 … +65 °C (without condensation)
80.0 x 17.5 x 73.0
Accessories
Designation
Locking and adjusting key
Type
BT Lock Pen
Qty.
1
Order No.
8659840000
C.114
Time relays – BT SERIES
Digital signal processing
Order No.
8647700000
8647710000
Multifunction relay with control input (BTM)
Ordering data
Connection system
Screw connection
Tension clamp
Type
BTM-S
BTM-Z
Qty
1
1
Functions
Function A – pick-up delay
Function G – pick-up and drop-out delayed
C
Time delay T begins after applying
the input signal (A1/A2).
At the end of this time, output R
(15/18) connects the load (pick-up
delayed).
After the input signal (A1/A2) has
been switched off again, the output
switches the load off again after the
set time (drop-out delayed).
Function J – pick-up delay with pulse
A1 / A 2
15 / 18
T
T
The set time T begins to be subject to
delay when the input signal (A1/A2) is
applied.
The output R (15/18) connects the
load at the end of the set time.
Function B – pulse emitter (starts at normal setting)
After applying the input signal (A1/A2),
output R (15/18) switches the load
synchronously and alternately bet-
ween the normal and operating set-
tings within the set time T. The cycle
starts at the normal setting in this
function.
Function B2 – pulse emitter (starts at operating setting)
Time delay T begins after applying
the input signal (A1/A2).
At the end of this time, the output R
(15/18) connects the load for
1 second.
After applying the input signal (A1/A2),
output R (15/18) switches the load
synchronously and alternately bet-
ween the normal and operating set
tings within the set time T. The cycle
starts at the operating setting in this
function.
Function C – wipe function
After applying the input signal
(A1/A2), output R (15/18) connects
the load for the set time T. Output R
switches the load off again at the
end of time T.
After switching off the input signal
(A1/A2), output R (15/18) connects
the load again for the set time T.
Output R (15/18) switches the load
off again at the end of time T.
Function D – drop-out delayed
A1 / A 2
15 / 18
T
T
After applying the input signal (A1/A2),
output R (15/18) connects the load.
The time delay T begins after the input
signal (A1/A2) has been switched off.
At the end of time T, output R (15/18)
switches the load off again.
Function E – passing make contact
A1 / A 2
15 / 18
T
After applying the input signal (A1/A2),
output R (15/18) connects the load
immediately.
At the end of the set delay time T,
out put R (15/18) switches the load
off again.
C.115
Time relays – BT SERIES
Digital signal processing
Multi-function relay without control input (BTMF)
Time relay (BTR)
Functions
Connection system
Screw connection
Tension clamp
Type
BTMF-S
BTMF-Z
Qty
1
1
Order No.
8647680000
8647690000
Functions
Connection system
Screw connection
Tension clamp
Type
BTR-S
BTR-Z
Qty
1
1
Order No.
8647720000
8647730000
Ordering data
Ordering data
Function A – pick-up delay
C
Function A – pick-up delay
The set time T begins to be subject
to delay when the power supply is
applied.
At the end of the set time, the output
connects the load.
The set time T begins to be subject
to delay when the power supply is
applied.
At the end of the set time, the output
R connects the load.
Function B2 – pulse emitter (starts at operating setting)
After applying the supply voltage, out-
put R switches the load synchronous
ly and alternately between the normal
and operating settings within the set
time T. The cycle starts at the opera-
ting setting in this function.
Function E – passing make contact
After applying the supply voltage, out-
put R connects the load immediately.
After the set delay time T, output R
(15/18) switches the load off again.
Function J – pick-up delay with pulse
The time delay T begins after applying
the power supply.
At the end of this time, the output
R (15/18) connects the load for
1 second.
C.116
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