Equivalent & Substitute Parts for Honeywell 11NT1-3G Toggle Switch

Part Overview

The Honeywell 11NT1-3G is a panel-mount toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 15A at 125V AC. This component features a locking lever actuator, sealed construction for IP67/IP68 ingress protection, and solder lug termination. The 11NT1-3G carries an obsolete product status, making identification of equivalent substitute parts essential for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

11NT1-3G

Honeywell Sensing and Productivity SolutionsIn Stock: 112011NT1-3G Datasheet

Current PartRFQ

1TL1-3D

Honeywell Sensing and Productivity SolutionsIn Stock: 12041TL1-3D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 11NT1-3G toggle switch is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Circuit configuration (SPDT), current rating (15A AC), and voltage rating (125V AC) must match exactly. These parameters define the switch's load-handling capability and circuit topology.

Mechanical Parameters: Panel mount configuration, actuator type (locking lever), actuator length (26.67mm), panel cutout diameter (12.40mm), and bushing thread (15/32-32) must be identical to ensure physical compatibility with existing panel installations.

Environmental Parameters: Ingress protection rating (IP67/IP68), operating temperature range (-65°C to 71°C), and sealed construction must be maintained for equivalent environmental performance.

Compliance Parameters: RoHS compliance status must be maintained for regulatory equivalence.

The substitute part 1TL1-3D meets all critical electrical, mechanical, and environmental parameters. The primary difference is the termination style (screw terminal versus solder lug) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The 1TL1-3D toggle switch is a direct functional equivalent to the obsolete 11NT1-3G. Both components share identical electrical ratings (15A, 125V AC, SPDT), mechanical dimensions (26.67mm actuator, 12.40mm panel cutout, 15/32-32 bushing thread), and environmental specifications (IP67/IP68 sealed, -65°C to 71°C operating range).

For New Designs: The 1TL1-3D is the recommended selection due to its active product status, ensuring long-term availability and supply chain continuity. Both components maintain RoHS compliance.

For Maintenance and Repair: The 1TL1-3D provides functional equivalence for replacement applications. The termination style difference (screw terminal on 1TL1-3D versus solder lug on 11NT1-3G) requires circuit board or wiring harness modification. This difference does not affect electrical performance or load-handling capability.

Compliance Consideration: Both parts are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications, supporting regulatory and export compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 1TL1-3D directly replace the 11NT1-3G without any modifications?

A: The 1TL1-3D is electrically and mechanically equivalent. However, the termination style differs: the 11NT1-3G uses solder lugs while the 1TL1-3D uses screw terminals. Panel mounting dimensions are identical. Connection method modification is required based on your circuit board or wiring harness design.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The 11NT1-3G is obsolete, meaning Honeywell no longer manufactures this part. The 1TL1-3D is active and in current production. For new designs and long-term availability, the 1TL1-3D is the appropriate selection.

Q: Are the electrical ratings identical between these two parts?

A: Yes. Both components are rated for 15A AC at 125V AC with SPDT circuit configuration and On-On switch function. Load-handling capability is identical.

Q: Do both parts meet the same environmental specifications?

A: Yes. Both components operate across the -65°C to 71°C temperature range and provide sealed construction. The 11NT1-3G specifies IP67/IP68 (Dust Tight, Waterproof) while the 1TL1-3D specifies Environment Sealed, providing equivalent environmental protection.

Q: What are the panel mounting considerations?

A: Both parts use identical panel mount specifications: 12.40mm circular cutout diameter and 15/32-32 bushing thread. Physical panel installation is identical. Wiring connection method differs due to termination style variation.

Q: Are there any compliance or certification differences?

A: No. Both components are RoHS compliant with identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications. Regulatory and export compliance requirements are equivalent.