Rechercher
Français

Current-Relay STW20K

Fabricant:

Ziehl

Numéro de pièce du fabricant:

S225121
Délai de livraison: 2 Weeks

Current Relay for AC-Detection, AND-Evaluation, 3 Transformers, Housing type K for switch-gear cabinet mount

89 CAD
+ -
Spécifications des produits
Brand ZIEHL
Country of origin Germany
Rated supply voltage AC/DC 24 - 240 V, AC 20 - 264 V, DC 20 - 297 V, < 1 W , < 4 VA
Overload capacity 100 A / 300 A
Ambient temperature range -20...+55 °C
Protection housing IP 30
Protection terminals IP 20
Applied standards UL/CSA

The current relay STW20K monitors the current in up to 3 lines with current transformers STWA1 (AND circuit). If there is a current in all 3 monitored lines, the relay (2 change-over contacts) picks up. If there is no current in at least one of the lines, the relay releases. The relay works in closed circuit current. When voltage is applied to the STW, the relay signals an alarm until the it has picked up.

Applications

Identifies power failure with 1- or 3-phase electrical consumers, e.g. with monitoring of heating elements or heating installations where a constant heating has to be guaranteed.

A further application is the identification of phase failure, monitoring of fuses, or triggering of operating hours counters.

If the switching threshold is not reached due to low currents of less than 1 A, the monitored wire should be led multiple times through the transformer. Not required inputs have to be connected to a occupied input.

Features

  • 3 current transformers STWA1
  • AND-evaluation
  • relay output 2 CO
  • Switching point approx. AC 1 A
  • LED-display for power on and alarm
  • housing design K
Entrez votre propre avis fermer
  • Un produit ne peut être commenté qu'après avoir été acheté
  • Seuls les utilisateurs enregistrés peuvent saisir des avis
  • Mauvais
  • Excellent
Description

The current relay STW20K monitors the current in up to 3 lines with current transformers STWA1 (AND circuit). If there is a current in all 3 monitored lines, the relay (2 change-over contacts) picks up. If there is no current in at least one of the lines, the relay releases. The relay works in closed circuit current. When voltage is applied to the STW, the relay signals an alarm until the it has picked up.

Applications

Identifies power failure with 1- or 3-phase electrical consumers, e.g. with monitoring of heating elements or heating installations where a constant heating has to be guaranteed.

A further application is the identification of phase failure, monitoring of fuses, or triggering of operating hours counters.

If the switching threshold is not reached due to low currents of less than 1 A, the monitored wire should be led multiple times through the transformer. Not required inputs have to be connected to a occupied input.

Features

  • 3 current transformers STWA1
  • AND-evaluation
  • relay output 2 CO
  • Switching point approx. AC 1 A
  • LED-display for power on and alarm
  • housing design K
Spécifications des produits
Brand ZIEHL
Country of origin Germany
Rated supply voltage AC/DC 24 - 240 V, AC 20 - 264 V, DC 20 - 297 V, < 1 W , < 4 VA
Overload capacity 100 A / 300 A
Ambient temperature range -20...+55 °C
Protection housing IP 30
Protection terminals IP 20
Applied standards UL/CSA
Tags des produits