T522B On-On Toggle Switch
■ The current has 10A and 15A
■ Movement way has fixed type and auto-return type (both single-throw and double-throw can return)
■ The terminal block has screw terminal and solder terminal (tab terminal also can be used)
■ Rainproof cap, water-proof and oil-proof, it is suitable for full series products
■ Mounting hole: φ12mm

Technical Parameters
An On-On Toggle Switch is a type of electrical switch designed to toggle between two active states or circuits. Unlike momentary switches, it maintains its position until manually toggled. This makes it ideal for applications requiring stable circuit control.
An On-On Toggle Switch is a two-position switch that connects one input to one of two outputs. It does not have an "Off" position, meaning one circuit is always active.
T522B DPDT On-On Toggle Switch (Double Pole Double Throw): Controls two independent circuits with two output options for each.
Ratings
Load | Type | AC Rating | DC Rating |
Resistance Load | TO | 10A 250V 15A 125V | 0.4A 250V 0.8A 125V |
T5 | 15A 250V 20A 125V | 0.5A 250V 0.9A 125V | |
Inductive Load | TO | 10A 250V 15A 250V | 0.2A 250V 0.4A 125V |
T5 | 15A 250V 20A 125V | 0.3A 250V 0.5A 125V 15A | |
Lamp Load | TO | 300W 100V 500W 200V | 30V |
T5 | 400W 125V 800W 250V | - | |
Motor Load | TO | 200W 125V 300W 250V | 7A 30V |
T5 | 400W 125V (single phase) | ||
TO | 550W 250V (three phase) | ||
T5 | 750W 250V (three phase) |
Characteristics
Contact resistance | 15MΩmax. (initial) |
Insulation resistance | 100MΩ above Under 500VDC |
Dielectric strength | 2000VAC,50/60Hz For 1minute |
Vibration | 10-55Hz,1.5mmDouble amplitude |
Ambien temperture | -10℃~+80℃ (With no icing) |
Humidity | 85% RH max |
T522B DPDT On-On Toggle Switch Features
Dual Circuit Control:
Controls two independent circuits simultaneously.
Two Active States:
No "Off" position; always connects the input to one of the outputs for continuous operation.
Reliable Mechanism:
Designed for durability and long-term use in demanding environments.
Compact Design:
Saves space while providing efficient circuit control.
Versatility:
Can be wired for various configurations, including reversing polarity for DC motors.
Model Designations
T□-□ □
① ②③
Items | Code | Description |
Type | TO | 10A 250VAC |
TOR | 10A 250VAC Spring return | |
T5 | 15A 250VAC | |
T5R | 15A 250VAC Spring return | |
Contact | 11 | Single pole single throw ON-OFF |
12 | Single pole double throw ON-ON | |
13 | ingle pole double throw (central OFF)ON-OFF-ON | |
131 | Single pole double throw (central OFF single returm)ON-OFF-ON | |
21 | Double pole single throw ON-OFF | |
22 | Double pole double throw ON-ON | |
23 | Double pole double throw (central OFF)ON-OFF-ON | |
231 | Double pole double throw (central OFF single retum)ON-OFF-ON | |
Terminal | A B C | (#250) Tab terminal Screw terminal (#187) Solder terminal |