M2049LL1W01 Toggle Switch 4PDT Equivalent & Substitute Parts

Part Overview

The M2049LL1W01 is a 4PDT toggle switch manufactured by NKK Switches, rated for 6A at 125V AC and 3A at 30V DC. This panel-mount switch features a locking lever actuator with solder lug termination and epoxy sealed terminals. The product is currently obsolete, making equivalent substitutes necessary for ongoing maintenance, repair, and new design applications where this switch specification is required.

Substiute Parts

M2049LL1W01

NKK SwitchesIn Stock: 1063M2049LL1W01 Datasheet

Current PartRFQ

5668AB9

APEM Inc.In Stock: 8565668AB9 Datasheet

SimilarRFQ

A431K12KZG

ElectroswitchIn Stock: 818A431K12KZG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M2049LL1W01 is determined by the following critical parameters:

• Circuit Configuration: Must be 4PDT to maintain electrical functionality
• Current Rating: Must support minimum 6A at 125V AC; DC rating must support 3A minimum
• Voltage Rating: Must support 125V AC and 30V DC minimum
• Switch Function: Must be On-Off-Mom configuration
• Mounting Type: Must be panel mount with compatible panel cutout dimensions
• Termination Style: Must use solder lug termination for direct connection compatibility
• Operating Temperature: Must encompass or exceed -30°C to 85°C range

Both substitute parts meet these core electrical and mechanical requirements, though with variations in secondary parameters such as actuator design, electrical life rating, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

5668AB9 (APEM Inc.) is suitable for direct substitution in applications where the original M2049LL1W01 specifications are required. This part maintains identical AC current and voltage ratings, matching panel cutout dimensions, and achieves RoHS3 compliance. The extended operating temperature range (-40°C to 85°C) provides additional thermal margin. DC current rating of 4A exceeds the original 3A requirement.

A431K12KZG (Electroswitch) provides enhanced electrical life performance at 60,000 cycles compared to the original 25,000 cycles. This part supports 6A DC current rating, exceeding the original 3A specification. The operating temperature range extends to 90°C. Panel cutout dimensions are not specified; verification against mechanical installation requirements is necessary. RoHS compliance is confirmed, though REACH status is vendor-undefined.

Both substitute parts are currently in active production status, ensuring long-term availability compared to the obsolete M2049LL1W01.

Frequently Asked Questions (FAQ)

Q: Can the 5668AB9 replace the M2049LL1W01 in existing designs?

A: Yes. The 5668AB9 maintains identical AC electrical ratings (6A, 125V), matching panel cutout diameter (6.50mm), and solder lug termination. Operating temperature range is extended to -40°C, providing additional margin. Mechanical fit and actuator length differences (11.40mm vs. 16.50mm) must be verified for panel space constraints.

Q: What are the key differences between the A431K12KZG and the original M2049LL1W01?

A: The A431K12KZG provides superior electrical life (60,000 vs. 25,000 cycles) and higher DC current rating (6A vs. 3A). Operating temperature extends to 90°C. DC voltage rating is 28V, slightly below the original 30V specification. Panel cutout dimensions are not specified and must be confirmed for mechanical compatibility.

Q: Are both substitute parts RoHS compliant?

A: Yes. The 5668AB9 is RoHS3 compliant. The A431K12KZG is RoHS compliant. Both meet environmental regulatory requirements for electronic component manufacturing.

Q: Which substitute part has the longest electrical life?

A: The A431K12KZG offers 60,000 electrical cycles, compared to 30,000 cycles for the 5668AB9 and 25,000 cycles for the original M2049LL1W01.

Q: Can I use either substitute part interchangeably?

A: Both parts meet the core electrical specifications (4PDT, 6A AC, 125V AC, On-Off-Mom function, solder lug termination). Selection depends on mechanical constraints (actuator length, panel cutout verification) and application requirements (operating temperature, electrical life expectations, DC current demands).