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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Description Price For Use With Contact Configuration Mounting Type Series Accessory Type
全新
RS庫存編號 192-0812
製造零件編號66431
BrandABB
TWD1,884.00
單位
SACE Tmax XT SPDT - AUX-C Contact Block
全新
RS庫存編號 192-0813
製造零件編號66438
BrandABB
TWD5,276.00
單位
Tmax XT SPDT - AUX-C Contact Block
全新
RS庫存編號 192-0816
製造零件編號66434
BrandABB
TWD3,768.00
單位
Tmax XT SPDT - AUX-C Contact Block
RS庫存編號 759-005
製造零件編號LA7K0064
TWD434.00
單位
K Thermal Overload Relay - DIN Rail - Contact Block
全新
RS庫存編號 192-0809
製造零件編號66994
BrandABB
TWD1,312.00
單位
Tmax XT SPDT - AUX-C Contact Block
全新
RS庫存編號 192-0815
製造零件編號66429
BrandABB
TWD1,285.00
單位
Tmax XT SPDT - AUX-SA-C Contact Block
RS庫存編號 552-851
製造零件編號G73Z-02Z
BrandOmron
TWD822.00
單位
G7Z Series DPST DIN Rail - Contact Block