SZL-VL-C Equivalent & Substitute Parts Reference

Part Overview

The SZL-VL-C is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This switch is rated for 5A AC at 250V and 400mA DC at 125V, featuring a side rotary adjustable rod actuator with IP64 ingress protection. The product is currently obsolete, necessitating identification of functionally compatible alternatives for ongoing maintenance and replacement applications.

Substiute Parts

SZL-VL-C

Honeywell Sensing and Productivity SolutionsIn Stock: 710SZL-VL-C Datasheet

Current PartRFQ

SZL-VL-S-C-N-M

Honeywell Sensing and Productivity SolutionsIn Stock: 1362SZL-VL-S-C-N-M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SZL-VL-C is determined by the following critical parameters:

Circuit Configuration: Both the main part and substitute maintain SPDT (DB/DM) circuit topology, ensuring identical switching logic and contact arrangement.

Actuator and Mounting: Both parts feature side rotary adjustable rod actuators with chassis mount configuration and screw terminal termination, providing mechanical and electrical interface compatibility.

Switch Function: Both parts operate in On-Momentary mode, maintaining identical functional behavior.

Environmental Protection: The substitute part SZL-VL-S-C-N-M provides IP67 ingress protection, which exceeds the IP64 rating of the main part, offering enhanced dust and water resistance.

Compliance and Lifecycle: Both parts are RoHS compliant and manufactured by the same supplier, ensuring regulatory alignment. The substitute part maintains active product status, supporting long-term availability.

Electrical Ratings Consideration: The substitute part operates at reduced current and voltage ratings (500mA AC at 380V AC; 50mA DC at 220V DC) compared to the main part. Substitution is valid only when the application circuit operates within these lower electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The SZL-VL-S-C-N-M serves as a direct substitute for the obsolete SZL-VL-C when the following conditions are met:

Electrical Load Compatibility: The application circuit must operate within the reduced electrical ratings of the substitute part: maximum 500mA AC at 380V AC, or maximum 50mA DC at 220V DC. Applications requiring the full 5A AC or 400mA DC capacity of the original part cannot use this substitute.

Active Product Status: The SZL-VL-S-C-N-M maintains active product status with Honeywell, ensuring continued availability, technical support, and supply chain reliability for new installations and replacements.

Regulatory Compliance: Both parts are RoHS compliant and manufactured by the same supplier, maintaining regulatory alignment and quality standards across substitution.

Environmental Protection Enhancement: The substitute part provides IP67 ingress protection compared to the IP64 rating of the main part, offering superior environmental sealing for applications exposed to moisture or dust.

Mechanical Interface Compatibility: Identical actuator type, mounting configuration, and termination style ensure direct mechanical and electrical interface compatibility without modification to existing mounting hardware or wiring.

Frequently Asked Questions (FAQ)

Q: Can the SZL-VL-S-C-N-M replace the SZL-VL-C in all applications?

A: No. The substitute part has reduced electrical ratings (500mA AC vs. 5A AC; 50mA DC vs. 400mA DC). Substitution is valid only when the application circuit operates within these lower parameters.

Q: What is the primary reason for substitution?

A: The SZL-VL-C is obsolete. The SZL-VL-S-C-N-M is an active product from the same manufacturer with compatible mechanical and circuit characteristics, ensuring long-term availability and support.

Q: Are the mechanical interfaces identical?

A: Yes. Both parts feature side rotary adjustable rod actuators, chassis mount configuration, and screw terminal termination, providing direct mechanical compatibility.

Q: Does the substitute part offer any performance improvements?

A: The SZL-VL-S-C-N-M provides enhanced ingress protection (IP67 vs. IP64) and an extended operating temperature range (-20°C to 70°C vs. -20°C to 60°C).

Q: Are both parts RoHS compliant?

A: Yes. Both the SZL-VL-C and SZL-VL-S-C-N-M are RoHS compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: What is the packaging format for the substitute part?

A: The SZL-VL-S-C-N-M is supplied in bulk packaging, consistent with the original part format.

Q: How do the electrical life ratings compare?

A: The main part does not specify electrical life. The substitute part is rated for 500,000 electrical cycles. Both parts are rated for 10,000,000 mechanical cycles.