Current-Relay for Obstacle Lights Type STW200

Current Relays for obstacle lights,  AC 12 - 120 mA for LED lanps, 0,1...1 A for light bulbs

Current-Relay for Obstacle Lights Type STW200

Part number


Product description

 

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