DC-Limit Value Switch Type STW1000V2

Limit Relay for DC standard signals 0/4 - 20 mA, 0/2 - 10 V

DC-Limit Value Switch Type STW1000V2

Part number

AC/DC 24-240 V

Product description

 

ZIEHL current-relays STW1000V2 monitor standardsignals from measuring transducers if a limit is exceeded. For monitoring of more than 1 signal, multiple relays can be connected in series (current) or in parallel (voltage). 

Measuring inputs for 0/4-20 mA and 0-10 V, adjustable hysteresis and switching delay and the choice between operating- and closed-current mode of the relay make it a very universal limit switch.

Applications
Monitoring of different values in combination with measuring transducers, e.g. in machines and controls.

  • Measuring inputs 0-20 mA / 0-10 V, switchable to 4-20 mA / 2-10 V
  • Limit adjustable 0-100 %
  • Hysteresis adjustable 5-30 %
  • Start-up delay adjustable 0,1 ... 10 s
  • Switching delay adjustable 0,1 ... 10 s
  • Output-relay 1 changeovercontact (co)
  • Operating- or closed-circuitmode for relay selectable with bridge
  • LEDs for display state of operation
  • Universal supply-voltage AC/DC 24-240 V
  • Housing for mounting in switchgear cabinets or fuseboxes, 35 mm wide

Technical Data

Supply voltage Us

.......

AC/DC 24 - 240 V, 0/50/60 Hz, < 2W, < 3VA
(DC 20,4 - 297 V, AC 20 - 264 V)

 

Relay output

.......

1 change-over contact (co)

 

Type of contact

.......

type 3 see general technical informations

 

Test conditions

.......

see general technical informations

 

Function

.......

Maximum limit switch

 

Measuring signals

.......

DC 0/4 ... 20 mA, 20 Ω
DC 0...10 V, 63 kΩ

 

Switching point

.......

adjustable 0...100%

 

Hysteresis

.......

adjustable 5...30% of set limit

 

Error of setting

.......

< 10% of fullscale

 

Repeat error

.......

< 0,2%

 

Temperature-dependence

.......

≤ 0,05 %/K

 

Start-up-delay dEnable

.......

adjustable 0,1...10 sec.

 

Switching delay dAL

.......

adjustable 0,1...10 sec.

 

Rated ambient temperature range

.......

-20°C…+55°C

 

Dimensions H x B x T

.......

design V2: 90x35x58 [mm], mounting height 55 mm

 

Attachment

.......

on 35 mm DIN-rail according to EN 60 715 or with screws M

 

Protection housing/terminals

.......

IP 30 / IP 20

 

Weight

.......

approx. 130 g