DC-Limit Value Switch Type STW1000V2
Limit Relay for DC standard signals 0/4 - 20 mA, 0/2 - 10 V
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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 Ω
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
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