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A16-T2-2S
Electronics Part Number
A16-T2-2S-WXManufacturer
Omron Automation
A16-T2-2S
Description
Contact Block DPDT, 5A, 125VACInventory
97 Pcs New Original In Stock
DPDT 5A @125VAC switch contact block; durable contacts, straightforward installation, supports dual-signal switching applications.
Quantity
Minimum 1
Minimum 1
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Freight
Basic cost: USD 70.00
Actual cost may vary depending on weight and destination
Shipping method
Shipped from Hong Kong via FedEx/DHL/UPS/TNT
Delivery Time
In-stock items: Ready to ship in 1-2 days
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Technical Specifications
Category
Configurable Switch Components, Configurable Switch Contact Blocks
Manufacturer
Omron Automation
Packaging
Bulk
Series
A165S
Base Product Number
A16
Product Status
Active
Termination Style
Solder, Quick Connect - 0.110" (2.8mm)
Circuit
DPDT
Contact Rating @ Voltage
5A @ 125VAC
Requires
Switch Body
(Select First, Then Apply Filters) Compatible Series
Omron, A165S
Data Sheet Document (D)
Datasheets
Download A16S-3N-2 Product Specification (PDF)
HTML Datasheet
A16S-3N-2-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8538.90.8180
Additional Information
Other Names
Z8107 A16S3N2 A16S-3N-2-DG
Standard Package
1
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Frequently Asked Questions (FAQ)
Can the A16S-3N-2 be used as a direct replacement for Allen-Bradley 800T-C2D2M in an existing indust
The A16S-3N-2 is not a direct form-fit-function replacement for the Allen-Bradley 800T-C2D2M due to differences in mounting dimensions and terminal layout. While both are DPDT contact blocks rated around 5A/125VAC, the A16S-3N-2 requires an Omron A165S series switch body and uses 0.110" quick connect terminals, whereas the 800T-C2D2M uses a different housing system and screw terminals. Attempting a drop-in replacement risks misalignment, improper latching, and wire strain. For safe integration, verify switch body compatibility, rework terminal connections, and confirm panel cutout compatibility to avoid long-term reliability issues in high-vibration environments.
What are the key design-in risks when using the A16S-3N-2 in a high-cycle industrial machine with fr
When integrating the A16S-3N-2 into high-cycle applications, the primary risk is mechanical wear on the contact block due to its non-latching, spring-actuated design. While the Omron A165S series switch bodies support millions of cycles, the A16S-3N-2 contact block itself has a lower mechanical life compared to sealed industrial relays. For operations exceeding 100,000 cycles annually, consider pairing the A16S-3N-2 with a pilot-duty relay instead of direct load switching to prevent contact degradation. Also ensure proper actuator alignment to avoid side loading, which can lead to premature failure.
How does the A16S-3N-2 perform when switching small signal loads below 10VDC, and is there a risk of
The A16S-3N-2 is rated for 5A @ 125VAC and is not optimized for low-level signal switching below 10VDC or 100mA. Using it in such applications risks 'dry circuit' failure due to lack of sufficient contact wetting current, leading to increased contact resistance and intermittent operation over time. For signal-level circuits, consider using a sealed low-power switch or signal relay instead. If you must use the A16S-3N-2 in mixed-load panels, isolate low-voltage signals from power contacts to maintain long-term reliability.
What are the compatibility constraints of the A16S-3N-2 with non-Omron switch actuators or custom op
The A16S-3N-2 is specifically designed to interface only with Omron A165S series switch bodies and actuators. Using non-Omron or custom actuators risks improper contact actuation force, incomplete travel, and potential failure to make/break circuits reliably. The contact block relies on precise cam action from the compatible switch body, and deviations can lead to 'floating contact' conditions or chatter. Always verify actuator compatibility from Omron’s A165S mechanical drawings and avoid third-party adapters unless validated for electrical and mechanical performance under actual load conditions.
What PCB layout and soldering practices should I follow when using the A16S-3N-2 with solder termina
When solder-mounting the A16S-3N-2, use adequate PCB pad size (per Omron's recommended footprint) and include strain relief supports to handle mechanical stress during wire insertion or panel vibration. The 0.110" terminals are not designed for wave soldering over prolonged exposure—limit dwell time to 3 seconds at 260°C to prevent internal contact damage. Additionally, avoid applying force to the terminals after soldering, as misalignment can crack the internal contact assembly. For high-reliability designs, consider conformal coating to protect against moisture, especially in industrial environments where condensation or cleaning cycles are frequent.
Can the A16S-3N-2 be used as a direct replacement for Allen-Bradley 800T-C2D2M in an existing indust
The A16S-3N-2 is not a direct form-fit-function replacement for the Allen-Bradley 800T-C2D2M due to differences in mounting dimensions and terminal layout. While both are DPDT contact blocks rated around 5A/125VAC, the A16S-3N-2 requires an Omron A165S series switch body and uses 0.110" quick connect terminals, whereas the 800T-C2D2M uses a different housing system and screw terminals. Attempting a drop-in replacement risks misalignment, improper latching, and wire strain. For safe integration, verify switch body compatibility, rework terminal connections, and confirm panel cutout compatibility to avoid long-term reliability issues in high-vibration environments.
What are the key design-in risks when using the A16S-3N-2 in a high-cycle industrial machine with fr
When integrating the A16S-3N-2 into high-cycle applications, the primary risk is mechanical wear on the contact block due to its non-latching, spring-actuated design. While the Omron A165S series switch bodies support millions of cycles, the A16S-3N-2 contact block itself has a lower mechanical life compared to sealed industrial relays. For operations exceeding 100,000 cycles annually, consider pairing the A16S-3N-2 with a pilot-duty relay instead of direct load switching to prevent contact degradation. Also ensure proper actuator alignment to avoid side loading, which can lead to premature failure.
How does the A16S-3N-2 perform when switching small signal loads below 10VDC, and is there a risk of
The A16S-3N-2 is rated for 5A @ 125VAC and is not optimized for low-level signal switching below 10VDC or 100mA. Using it in such applications risks 'dry circuit' failure due to lack of sufficient contact wetting current, leading to increased contact resistance and intermittent operation over time. For signal-level circuits, consider using a sealed low-power switch or signal relay instead. If you must use the A16S-3N-2 in mixed-load panels, isolate low-voltage signals from power contacts to maintain long-term reliability.
What are the compatibility constraints of the A16S-3N-2 with non-Omron switch actuators or custom op
The A16S-3N-2 is specifically designed to interface only with Omron A165S series switch bodies and actuators. Using non-Omron or custom actuators risks improper contact actuation force, incomplete travel, and potential failure to make/break circuits reliably. The contact block relies on precise cam action from the compatible switch body, and deviations can lead to 'floating contact' conditions or chatter. Always verify actuator compatibility from Omron’s A165S mechanical drawings and avoid third-party adapters unless validated for electrical and mechanical performance under actual load conditions.
What PCB layout and soldering practices should I follow when using the A16S-3N-2 with solder termina
When solder-mounting the A16S-3N-2, use adequate PCB pad size (per Omron's recommended footprint) and include strain relief supports to handle mechanical stress during wire insertion or panel vibration. The 0.110" terminals are not designed for wave soldering over prolonged exposure—limit dwell time to 3 seconds at 260°C to prevent internal contact damage. Additionally, avoid applying force to the terminals after soldering, as misalignment can crack the internal contact assembly. For high-reliability designs, consider conformal coating to protect against moisture, especially in industrial environments where condensation or cleaning cycles are frequent.
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Sep 15 2026
