Honeywell 102TL1-2 Toggle Switch DPST 15A 125V Equivalent & Substitute Parts

Part Overview

The Honeywell 102TL1-2 is an active-status toggle switch with DPST (Double Pole Single Throw) circuit configuration, rated for 15A AC at 125V. This panel-mount switch features a standard round actuator with non-illuminated design and environment-sealed ingress protection. The component is manufactured by Honeywell Sensing and Productivity Solutions and is RoHS compliant. Equivalent and substitute parts are identified when identical electrical ratings, mechanical mounting interfaces, and functional characteristics are maintained across alternative part numbers within the same manufacturer's product portfolio.

Substiute Parts

102TL1-2

Honeywell Sensing and Productivity SolutionsIn Stock: 877102TL1-2 Datasheet

Current PartRFQ

2NT91-2

Honeywell Sensing and Productivity SolutionsIn Stock: 21532NT91-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 102TL1-2 with the 2NT91-2 is valid based on the following electrical and mechanical parameters that remain constant across both part numbers:

Electrical Equivalence Criteria:

• Circuit configuration: DPST maintained
• Current rating: 15A AC maintained
• Voltage rating: 125V AC maintained
• Switch function: On-Off maintained

Mechanical Equivalence Criteria:

• Mounting type: Panel Mount maintained
• Panel cutout dimensions: Circular 12.40mm Dia maintained
• Bushing thread: 15/32-32 maintained
• Actuator type: Standard Round maintained
• Illumination: Non-Illuminated maintained

Compliance Criteria:

• RoHS Compliant status maintained
• Manufacturer: Honeywell Sensing and Productivity Solutions (same manufacturer)
• Moisture Sensitivity Level: MSL 1 (Unlimited) maintained

The 2NT91-2 represents a functionally equivalent alternative within Honeywell's product line, differing only in series designation (NT versus TL), termination style, actuator length tolerance, and environmental protection rating.

Parameter Comparison

Engineering Selection Recommendations

Both the 102TL1-2 and 2NT91-2 maintain active product status with Honeywell Sensing and Productivity Solutions and are RoHS compliant. Selection between these parts should be based on the following provided specifications:

Termination Interface: The 102TL1-2 uses IWTS termination, while the 2NT91-2 uses Quick Connect 0.250" (6.3mm) termination. The circuit board or wiring harness design must accommodate the specified termination style.

Environmental Protection: The 102TL1-2 provides environment-sealed protection. The 2NT91-2 provides enhanced IP67/IP68 protection (dust tight, waterproof). Applications requiring submersion or high-moisture environments should specify the 2NT91-2.

Operating Temperature Range: The 102TL1-2 operates from -65°C to 71°C. The 2NT91-2 operates from -40°C to 71°C. Applications requiring operation below -40°C must use the 102TL1-2.

Actuator Length: The 102TL1-2 has a 17.27mm actuator length, while the 2NT91-2 has a 17.02mm actuator length. Panel thickness and actuator accessibility requirements may influence selection.

Both parts share identical electrical ratings (15A AC, 125V AC, DPST), mechanical mounting interfaces (12.40mm panel cutout, 15/32-32 bushing thread), and compliance certifications, confirming functional equivalence for standard switching applications.

Frequently Asked Questions (FAQ)

Q: Can the 2NT91-2 directly replace the 102TL1-2 in an existing assembly?

A: Direct replacement depends on termination compatibility. The 102TL1-2 uses IWTS termination while the 2NT91-2 uses Quick Connect 0.250" termination. If the circuit board or wiring harness is designed for IWTS connections, the 2NT91-2 cannot be directly substituted without adapter hardware or circuit redesign. Panel mounting dimensions are identical, so mechanical fit is compatible.

Q: What is the difference in environmental protection between these parts?

A: The 102TL1-2 provides environment-sealed protection suitable for general industrial applications. The 2NT91-2 provides IP67/IP68 protection, which is dust tight and waterproof. For applications exposed to moisture, washdown environments, or submersion, the 2NT91-2 offers superior environmental sealing.

Q: Are there temperature limitations for either part?

A: The 102TL1-2 operates across -65°C to 71°C. The 2NT91-2 operates across -40°C to 71°C. Applications requiring operation below -40°C must use the 102TL1-2. Both parts are suitable for standard industrial temperature ranges above -40°C.

Q: Do both parts have the same electrical specifications?

A: Yes. Both the 102TL1-2 and 2NT91-2 are rated for 15A AC at 125V with DPST circuit configuration and On-Off switch function. Electrical performance is identical between the two part numbers.

Q: What is the significance of the actuator length difference?

A: The 102TL1-2 has a 17.27mm actuator length while the 2NT91-2 has a 17.02mm actuator length. This 0.25mm difference is within typical manufacturing tolerance. Panel thickness and operator accessibility requirements should be evaluated, but this difference is not significant for standard panel-mount applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the 102TL1-2 and 2NT91-2 are RoHS compliant and have MSL 1 (Unlimited) moisture sensitivity rating, confirming equivalent compliance status for regulated applications.

Q: What termination style should I specify for new designs?

A: Termination selection depends on assembly process and circuit interface design. The IWTS termination on the 102TL1-2 is suitable for wire-to-switch connections. The Quick Connect 0.250" termination on the 2NT91-2 is suitable for quick-disconnect harness applications. Specify based on your assembly and maintenance requirements.