Timers
Star-Delta Control Relay
Type S 115
• 4 selectable time ranges: 0.15 s to 800 s
• Automatic start
• Knob-adjustable time within range
• Fixed delay between star and delta output
• Oscillator-controlled time circuit
• Repeatability deviation: ≤ 1%
• Output: 10 A SPDT relay with neutral centre position
• Plug-in type module
• S-housing
• LED-indication for star and delta outputs
• AC or DC power supply
Product Description
Multi time range, plug-in stardelta control relays with 4
selectable time ranges up to
800 s. Used in applications
Ordering Key
where motors are started in a
star-delta configuration such
as large blowers etc.
S 115 186 024
Housing
Type/function
Output
Power supply
Type Selection
Plug
Output
Time range
Circ.
SPDT with 0.15 -800 s
neutral
centre
Sup.: 24 VAC
Sup.: 115 VAC
Sup.: 230 VAC
Sup.: 400 VAC
Sup.: 24 VDC
S 115 186 024
S 115 186 115
S 115 186 230
S 115 186 400
S 115 186 724
Time Specifications
Time ranges
Selectable by DIP-switch
Delay
between star and delta output
Time range accuracy
Repeatability deviation
Time variation
Within rated power supply
and ambient temperature
Reset
Time and/or relay
In star position:
In delta position:
0.15
0.6
5
40
Output Specifications
3s
- 12 s
- 100 s
- 800 s
Typically 100 ms
0 to +10% on max.
min. actual time ≤ min.
set time
≤ 1%
≤ 0.05%/V
≤ 0.2%/°C
power supply interruption
≥ 250 ms
≥ 600 ms
interruption ≥ 900 ms:
restart
interruption ≤ 300 ms:
remains in delta position
Specifications are subject to change without notice
Output
Basic electrical insulation
contact/contact)
Contact ratings (AgCdO)
Resistive loads
AC 1
DC 1
or
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
AC 1
SPDT relay
250 VAC (rms) (contact.elec.,
µ (micro gap)
10 A/250 VAC (2500 VA)
1 A/250 VDC (250 W)
10 A/25 VDC (250 W)
2.5 A/230 VAC
5 A/24 VDC
≥ 30 x 106 operations
≥ 2.5 x 105 operations
(at max. load)
≤ 7200 operations/h
Operating frequency
Insulation voltages
Rated insulation voltage
2.0 kVAC (rms) (cont./elec.)
Rated transient protection volt. 4 kV (1.2/50 µs) (cont./elec.)
(IEC 664)
1
S 115
Supply Specifications
General Specifications
Power supply AC types
Rated operational voltage
through pins 2 & 10
400
230
115
024
Drop-out tolerance
Rated insulation voltage
Rated transient protection volt.
Power ON delay
Power OFF delay
Installation cat. III (IEC 664)
≤ 200 ms
In star position: ≥ 150 ms
In delta position: ≥ 600 ms
400 VAC ± 15%, 45 to 65 Hz
230 VAC ± 15%, 45 to 65 Hz
115 VAC ± 15%, 45 to 65 Hz
24 VAC ± 15%, 45 to 65 Hz
≥ 40 ms
≥ 2.0 kVAC (RMS)
4 kV (1.2/50 µs)
(line/neutral)
Power supply DC type
Installation cat. III (IEC 664)
Rated operational volt. 724
24 VDC ± 15% (pin 2 pos.)
Rated insulation voltage
None
Rated transient protection volt. 800 V (1.2/50 µs)
Consumption
AC supply
2.5 VA
DC supply
1.5 W
Indication for
Delta output ON
Star output ON
Environment
Dregree of protection
Pollution degree
Operating temperature
Storage temperature
Weight
AC supply
DC supply
Approvals
Mode of Operation
Wiring Diagram
The relay is normally in neutral
centreposition. When power
supply is applied, the relay is
switched to star position (pin
4) and the star time period
starts.
At the end of the set time
period, the relay returns to
neutral centre position and
the fixed delay between star
and delta starts.
If power supply is interrupted
during the star time period for
min. 250 ms, the star time
period is repeated.
If power supply is interrupted
after the star time period for at
least 900 ms, the entire sequence is repeated.
Power supply
Accessories
Time-ranges for
star-position
DIP-switch selector (1 & 2).
Sockets◊
Hold down spring◊
Mounting rack
Socket covers
Potentiometer lock
Front mounting bezel
1 2
0.6 - 12 s
5
- 100 s
40
- 800 s
IP 20 B
2 (IEC 664)
-20° to +50°C (-4° to +122°F)
-50° to +85°C (-58° to +185°F)
200 g
125 g
UL, CSA, SEV
At the end of this delay,
approx. 100 ms, the relay is
switched to delta-position
(pin 3).
Function/Time Setting
0.15 - 3 s
LED, green
LED, red
Time setting
Knob-adjustable on scale in
per cent of max. time.
DIP-switches for selecting
time are placed behind a small
removable front plate on the
time relay.
S 411
HF
SM 13
BB 4
PL 3
FRS 2
For further information refer to "Accessories".
Operation Diagram
> 900 ms
> 250 ms
< 300 ms
Power supply
Star output pins 1 & 4
Delta output pins 1 & 3
100 ms
2
100 ms
Specifications are subject to change without notice