Auxiliary Contact Blocks

An auxiliary contact block is a piece of equipment that contains auxiliary contacts for a relay. A relay is a type of switch that is operated electronically, commonly with an electromagnet.

What are auxiliary contact blocks used for?

Every relay contains contacts, which are pieces of electrically conductive material, usually metal. When a pair of contacts touch, they pass an electrical current, making the switch ’closed.’ When the contacts separate, the switch is ’open,’ and the current ceases to flow.

In electromechanical relays, auxiliary contacts are often used in a relay logic circuit, or for some other part of the motor control scheme, typically switching 120 Volt AC power instead of the motor voltage. One contactor may have several auxiliary contacts.

Types of auxiliary contact blocks

Auxiliary contact blocks are used with specific relays, such as thermal overload relays and motor starter protectors. They are also differentiated by their contact configurations, such as DPNO (double pole normally open) and DPDT (double pole double throw); and in the way they are mounted, such as through a chassis mount or DIN rail mount.


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Afficher 1 - 9 des 9 produits
Nombre de résultats par page
Description Prix Accessory Type For Use With Contact Configuration Mounting Type Series
Nouveau
N° de stock RS 221-1138
Référence fabricantLADR03
106,00 €
Each
Unité
- Tesys D Cad, Tesys D Lc1D - - -
N° de stock RS 192-0812
Référence fabricant66431
MarqueABB
67,18 €
Each
Unité
Contact Block SACE Tmax XT SPDT - AUX-C
Nouveau
N° de stock RS 213-1400
Référence fabricant3TX4010-3A
MarqueSiemens
17,20 €
Each
Unité
- Contactor relay and power contactor - - 3TX
N° de stock RS 192-0816
Référence fabricant66434
MarqueABB
134,36 €
Each
Unité
Contact Block Tmax XT SPDT - AUX-C
N° de stock RS 192-0815
Référence fabricant66429
MarqueABB
46,59 €
Each
Unité
Contact Block Tmax XT SPDT - AUX-SA-C
N° de stock RS 192-0809
Référence fabricant66994
MarqueABB
34,36 €
Each
Unité
Contact Block Tmax XT SPDT - AUX-C
N° de stock RS 759-005
Référence fabricantLA7K0064
11,67 €
Each
Unité
Contact Block K Thermal Overload Relay - DIN Rail -
Nouveau
N° de stock RS 213-1401
Référence fabricant3TX4413-1A
MarqueSiemens
19,10 €
Each
Unité
- Contactor relay and power contactor - - 3TX
N° de stock RS 192-0813
Référence fabricant66438
MarqueABB
188,11 €
Each
Unité
Contact Block Tmax XT SPDT - AUX-C