STW200 Current-Relay, for obstacle lights
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- Part number: S225530
Current Relays for obstacle lights, AC 12 - 120 mA for LED lanps, 0,1...1 A for light bulbs
Current-relays STW 200 monitor AC-currents for falling below an adjusted limit. The ranges 12 ... 120 mA and 0.1 ... 1 A allow the monitoring of LED-Lamps as well as incandescent lamps in obstruction lights. In case of main lamp failure a relay switches on the reserve lamp. An alarm contact is available for signalling a lamp failure.
Application
Monitoring of LED-Lamps or light-bulbs in twin obstacle lights with alarm (lamp failure) and switching on a reserve lamp. Monitoring of the function of single obstacle lights. At conventional solutions with a change over contact, there is a short on-pulse at the reserve lamp every time when the system is switched on. The STW 200 switches it on only in case of a failure of the main lamp. LED-lamps can also be monitored with long cables between relay and lamp. When monitoring LED-lamps a total failure is detected. Failures of single LEDs are not detected.
- Measuring input 12…120 mA for LED-lamps
- Measuring input 0,1…1 A for incandescent lamps (bulbs)
- Adjustment range 10…100%
- Relay for switching on reserve lamp in operating current mode
- Relay for Alarm in closed current mode
- Cable-length from relay to lamp up to 500 m
- Display green = o.k., red = low current alarm
- Housing 70 mm wide, mounting height 55 mm
Technical Data
Rated supply voltage US / Frequency
.......
AC 230 V / 50 Hz
Power consumption
.......
< 3 VA
Tolerance of supply voltage
.......
0,85 … 1,1 Us
Tolerance of frequency
.......
48 ... 62 Hz
Adjustment range
Limit I
.......
10…100 % of measuring range
Tolerance
.......
± 20 %
Repeating error
.......
< 1 %
Temperature-factor
.......
< 0.1 %/K
Hysteresis
.......
ca. 5 %
Measuring ranges
Input F1.2
Adjusting range
.......
0.1…1 A
Resistance of input
.......
<= 0.2 Ohm
Overload capacity continuously
.......
2 A
Overload capacity < 10 s
.......
5 A
Overload capacity < 1 s
.......
10 A
Input F1.1
Adjusting range
.......
0.012…0.12 A
Resistance of input
.......
<= 0.5 Ohm
Overload capacity continuously
.......
1.5 A
Overload capacity < 10 s
.......
3 A
Overload capacity < 1 s
.......
10 A
Frequency of measured signal
.......
45…65 Hz
Cable capacitance with LED-lamp
.......
max. 200 nF = approx. 500 m
Switching delays
Switch on delay t1
.......
< 0.2 s
Alarm delay t2
.......
= 2 s
Switch-back delay t3
.......
= 0.2 s
Tolerance at Tu = 25 °C
.......
< ± 10%
Temperature-factor
.......
< 0.4 %/K
Data of relay (EN 60947-5)
Type of contact
.......
2 change-over contacts (CO)
Switching voltage
.......
max. AC 415 V
Switching current
.......
max. 6 A
Switching capacity
.......
max. 2000 VA (ohm resistive load)
max. 120 W at DC 24 V
Rated nominal current Ie (for CO)
.......
3 A AC15 250 V; 2 A DC13 24 V
Recommended fuse
.......
3.15 A gl (slow)
Expected contact life mechanical
.......
3 x 107 switching cycles
Expected contact life electrical
.......
1 x 105 switching cycles at 240 V / 6 A
Factor of reduction at cosϕ = 0,3
.......
0.5 of max. switching capacity
Test conditions (EN 50178 / EN 60 947)
Rated insulation voltage Ui
.......
250 V
Overvoltage category
.......
III
Contamination level
.......
3
Rated impulse voltage
.......
4000 V
On-time
.......
100 %
Rated ambient temperature range
.......
-40 °C ... +55 °C
Temperature for storage
.......
-40…+70 °C
EMV – interference resistance
.......
EN 61000-6-2
EMV – emitted interference
.......
EN 50 081-1
Vibration resistance EN 60068-2-6
.......
2…25 Hz ±1.6 mm
25 ... 150 Hz 5g
Housing
Design
.......
V4, Polyamide PA 66, UL 94 V-2
Mounting height
.......
55 mm
Width
.......
4 TE
Dimensions (W x H x D)
.......
90 x 70 x 58 mm
Installation
.......
Snap mount on 35 mm rail EN 60715 or with screws 2 x M 4
Protection housing / terminals
.......
IP 30 / IP 20
Wire connection one wire
.......
1 x 4 mm2
Stranded with insulated ferrules
.......
1 x 2.5 mm2
Weight
.......
approx. 210 g
| Input / measuered parameter: | Current measuring |
| Outputs: | Alarms/relays |
| Design: | Mount in switchgear cabinet, Mount in circuit breaker box |