ASD3K40N Equivalent & Substitute Parts

Part Overview

The ASD3K40N is a keylock switch manufactured by IDEC, featuring 3-position, 4PST-NO (4 Pole Single Throw - Normally Open) contact configuration. This panel-mount switch is rated for 10A AC at 110V and 8A DC at 24V, with an IP54 rating and mechanical life of 500,000 cycles. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing.

Substiute Parts

ASD3K40N

IDECIn Stock: 721ASD3K40N Datasheet

Current PartRFQ

ASD3K40NU

IDECIn Stock: 1125ASD3K40NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete ASD3K40N is based on maintaining electrical and mechanical compatibility within the IDEC keylock switch product family. The primary substitute, ASD3K40NU, shares the same base product number (ASD3) and maintains critical functional parameters including circuit configuration, contact rating, voltage specifications, and panel mounting interface.

The substitution logic is determined by the following key parameters:

• Circuit configuration (4PST-NO)
• Number of positions (3)
• Current and voltage ratings (10A AC / 110V, 8A DC / 24V)
• Actuator type (Flat Key)
• Mounting interface (Panel Mount, Screw Terminal, 30.50mm circular cutout)
• Mechanical life specification (500,000 cycles)
• Environmental compliance (ROHS3, IP54)

Parameter Comparison

Engineering Selection Recommendations

The ASD3K40NU is the direct substitute for the obsolete ASD3K40N. Both components are manufactured by IDEC and share the same base product designation (ASD3), ensuring functional and mechanical compatibility. The ASD3K40NU maintains active product status with current manufacturing support and availability, whereas the ASD3K40N is obsolete.

Both parts meet ROHS3 compliance requirements and carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling. The transition from ASD3K40N to ASD3K40NU does not introduce compatibility issues for applications requiring 3-position keylock switching with 4PST-NO contact configuration at the specified voltage and current ratings.

Frequently Asked Questions (FAQ)

Q: Can ASD3K40NU directly replace ASD3K40N in existing installations?

A: Yes. Both components share identical electrical specifications (10A AC / 110V, 8A DC / 24V), circuit configuration (4PST-NO), mechanical interface (Panel Mount, 30.50mm circular cutout, Screw Terminal), and environmental ratings (IP54, ROHS3 Compliant). The panel mounting dimensions and termination style are compatible.

Q: What is the difference between ASD3K40N and ASD3K40NU?

A: The primary difference is product status. ASD3K40N is obsolete with no current manufacturing support. ASD3K40NU is an active product from IDEC with ongoing availability and manufacturing continuity. Electrical and mechanical specifications remain equivalent.

Q: Are there packaging differences between these parts?

A: ASD3K40N packaging is not specified in the product data. ASD3K40NU is supplied in Bulk packaging. This difference does not affect functional compatibility or installation.

Q: What parameters must remain constant for substitution?

A: Circuit configuration (4PST-NO), number of positions (3), current ratings (10A AC / 8A DC), voltage ratings (110V AC / 24V DC), actuator type (Flat Key), mounting type (Panel Mount), and panel cutout dimensions (30.50mm circular) must remain constant for direct substitution.

Q: Is the ASD3K40NU suitable for the same operating temperature range?

A: The operating temperature range for ASD3K40NU is not specified in the provided data. Verify temperature specifications with IDEC technical documentation if operating temperature range is a critical parameter for your application.