Specifications are subject to change without notice (14.03.01)
1
Timers
Mono-function, plug-in delay
on release time relays up to
180 h covering 10 individual
time ranges. Often used for
monitoring an external power
supply and signalling drop-
out of power supply after a
preset period of time.
Time ranges
3 m
- 60 m
8 m
- 180 m
0.5 h - 10 h
3 h
- 60 h
8 h
- 180 h
Time range accuracy
0 to +10% on max.
min. actual time
min.
set time
Repeatability deviation
1%
Time variation
Within rated power supply
0.05%/V
and ambient temperature
0.2%/C
Output
SPDT relay
Basic electrical insulation
250 VAC (rms)
(contact/electronics)
Contact ratings (AgCdO)
(micro gap)
Resistive loads
AC 1
8 A/250 VAC (2000 VA)
DC 1
0.4 A/250 VDC (100 W)
or
4 A/25 VDC (100 W)
Small inductive loads
AC 15
2.5 A/230 VAC
DC 13
5 A/24 VDC
Mechanical life
30 x 10
6
operations
Electrical life
AC 1
2.5 x 10
5
operations
(at max. load)
Operating frequency
7200 operations/h
Insulation voltages
Rated insulation voltage
2.0 kVAC (rms) (cont./elec.)
Rated transient protection volt.
4 kV (1.2/50 s) (cont./elec.)
(IEC 664)
Plug
Output
Time ranges
Supply: 24 VAC
Supply: 115 VAC
Supply: 230 VAC
Supply: 24 VDC
Circular
SPDT
3 m
- 60 m SB 135 024 60M
SB 135 115 60M
SB 135 230 60M
SB 135 724 60M
8 m
- 180 m SB 135 024 180M
SB 135 115 180M
SB 135 230 180M
SB 135 724 180M
0.5 h
- 10 h
SB 135 024 10H
SB 135 115 10H
SB 135 230 10H
SB 135 724 10H
3 h
- 60 h
SB 135 024 60H
SB 135 115 60H
SB 135 230 60H
SB 135 724 60H
8 h
- 180 h
SB 135 024 180H
SB 135 115 180H
SB 135 230 180H
SB 135 724 180H
Housing
Function
Output
Type
Power supply
Time range
Time ranges: 0.15 s to 180 h
Automatic start after drop-out of power supply
Knob-adjustable time within range
Oscillator-controlled time circuit
Repeatability deviation:
1%
Output: 8 A SPDT relay
Plug-in type module
S-housing
LED-indication for power supply on
AC or DC power supply
Delay on Release
Type SB 135
Product Description
Ordering Key
Type Selection
Time Specifications
Output Specifications
SB 135 024 3S
2
Specifications are subject to change without notice (14.03.01)
Power supply AC types
Installation cat. III (IEC 664)
Rated operational voltage
through pins 2 & 10
230
230 VAC 15%, 45 to 65 Hz
115
115 VAC 15%, 45 to 65 Hz
024
24 VAC 15%, 45 to 65 Hz
Drop-out tolerance
40 ms
Rated insulation voltage
2.0 kVAC (rms)
(supply/elec.)
Rated transient protection volt.
4 kV (1.2/50 s)
(line/neutral)
Power supply DC type
Installation cat. III (IEC 664)
Rated operational voltage 724
24 VDC 15% (pin 2 pos.)
Rated insulation voltage
None
Rated transient protection volt.
800 V (1.2/50 s)
Consumption
AC supply
2.5 VA
DC supply
1.5 W
Built-in battery for
time function
Nominal voltage
5 V
Capacity
40 mAh
Charging current
360 A
Discharging current
120 A
SB 135
Time setting
Knob-adjustable on scale in
seconds, minutes or hours.
PE = pin 7
Power supply
The relay operates immedi-
ately after power supply is
applied.
When power supply is inter-
rupted, the time period starts
and at expiration of the set
time period, the relay releases.
If power supply is reapplied
before the relay is released,
the time is reset and the re-
lay remains on.
The built-in battery is re-
charged when power supply
is applied and is discharged
during the time periods.
To maintain sufficient energy
in the battery, the relay must
be recharged for at least one
third of the total discharging
periods as the recharge/dis-
charge current ratio is 3:1.
The capacity of the built-in
battery is sufficient for more
than 300 h of continuous time
measuring without recharg-
ing it.
Please note
The SB 135 should not be
operated by short pulses. For
this purpose the relay
DMB01, operated by means
of an external contact func-
tion, should be used.
NB! It is recommended to
connect the SB 135 to the
power supply for 48 hrs be-
fore it is put into regular ser-
vice in order to compensate
for energy losses due to e.g.
a long storage period.
Between pins 6 and 7. Pin 6
positive.
R
j
= 1 k
.
Curve I
Ideal battery voltage at unin-
terrupted power supply.
Curve II
Min. battery voltage. Battery
should be recharged before
voltage drops to min. level.
Curve III
Course of battery voltage.
The recharging periods must
always equal at least one
third of the total discharging
periods.
PowerON delay
200 ms
Indication for
Power supply ON
LED, red
Environment
Degree of protection
IP 20 B
Pollution degree
2 (IEC 664)
Operating
-20 to +50C (-4 to +122F)
Storage
-50 to +85C (-58 to +185F)
Weight
AC types
200 g
DC types
125 g
Approvals
UL, CSA
CE Marking
Yes
Battery
control
Supply Specifications
General Specifications
Time Setting
Mode of Operation
Battery Control
Wiring Diagram
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