[Notification of CAD Data Download Issue]
We regret to inform you that we are currently experiencing issues with downloading CAD data for some products.
We are investigating the cause of this problem. We apologize for any inconvenience this may cause and appreciate your understanding.
Business > Industrial Devices > Automation Controls Top > Components & Devices > Relays / Couplers > Power Relays (Over 2A) > Difference between Polarized and Non-polarized Relays
Non-polarized | Polarized | |
---|---|---|
Main relays | ||
Contact arrangement | 1a, 1c |
1a, 1b, 1c, 2a, 2b, 2c, 1a1b, 4a, 4c, 2a2b, 3a1b |
Latching type | Without |
With |
Nominal operating power (Comparison: 10A type) |
LQ relays 200 mW (1 Form A contact only) |
DK relays 200 mW |
Vibration and shock resistance | Weak compared to polarized relays. |
Strong compared to non-polarized relays. |
Coil power consumption can be controlled, because ON or OFF state of relay contact can be held using pulse input (zero power consumption when there is no pulse drive).
Non-polarized (non-latching) type | Polarized (latching) type | ||||
---|---|---|---|---|---|
|
|
When compared under the same contact capacity, the polarized relays are more sensitive than non-polarized relays.
Compared with 10 A switching capacity | LQ relays 200 mW (1 Form A contact only) |
---|---|
DK relays 200 mW |
Vibration resistance (Functional) | LQ relays 10 to 55 Hz (double amplitude of 1.6 mm) |
---|---|
DK relays 10 to 55 Hz (double amplitude of 3 mm) |
Contact bouncing when resetting is controlled thanks to power of permanent magnet.
NC switching ability at same level as NO (a contact) is maintained.
Non-polarized type | Polarized type | ||||
---|---|---|---|---|---|
|
|
Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)