Equivalent & Substitute Parts for Honeywell 91MCE16-S3

Part Overview

The Honeywell 91MCE16-S3 is a snap action DPST switch rated for 6A at 120V AC with chassis mount configuration and IP67 ingress protection. This component features a side rotary roller actuator with 3-meter cable leads and operates across -25°C to 85°C. The 91MCE16-S3 is classified as obsolete, necessitating identification of functionally equivalent active alternatives to maintain system availability and support ongoing procurement requirements.

Key Parameters

Parameter	Value
Circuit Configuration	DPST-NO/NC
Current Rating (AC)	6A
Current Rating (DC)	550mA
Voltage Rating (AC)	120V
Voltage Rating (DC)	125V
Actuator Type	Side Rotary, Roller
Mounting Type	Chassis Mount
Termination Style	Cable Leads
Ingress Protection	IP67
Operating Temperature Range	-25°C to 85°C
Electrical Life	500,000 Cycles
Mechanical Life	5,000,000 Cycles
RoHS Compliance	Yes

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE16-S3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

Circuit configuration must be DPST-NO/NC
Current rating must support minimum 6A AC and 550mA DC
Voltage ratings must meet or exceed 120V AC and 125V DC

Mechanical & Environmental Requirements:

Actuator type must be side rotary with roller mechanism
Mounting configuration must be chassis mount
Termination must be cable leads
Ingress protection must be IP67 or higher
Operating temperature range must encompass -25°C to 85°C minimum

Lifecycle & Compliance Requirements:

Electrical life minimum 500,000 cycles
Mechanical life minimum 5,000,000 cycles
RoHS compliant status required

The NGCMA30AX01A1B meets all mandatory substitution criteria while offering active product status and enhanced mechanical specifications.

Parameter Comparison

Parameter	91MCE16-S3	NGCMA30AX01A1B	Compatibility
Manufacturer	Honeywell Sensing and Productivity Solutions	Honeywell Sensing and Productivity Solutions	Same
Circuit Configuration	DPST-NO/NC	DPST-NO/NC	Equivalent
Switch Function	On-Mom, Off-Mom	On-Mom, Off-Mom	Equivalent
Current Rating (AC)	6A	6A	Equivalent
Current Rating (DC)	550mA	550mA	Equivalent
Voltage Rating (AC)	120V	120V	Equivalent
Voltage Rating (DC)	125V	125V	Equivalent
Actuator Type	Side Rotary, Roller	Side Rotary, Roller	Equivalent
Mounting Type	Chassis Mount	Chassis Mount	Equivalent
Termination Style	Cable Leads	Cable Leads	Equivalent
Ingress Protection	IP67	IP67	Equivalent
Operating Force	14gfm	18gfm	Substitute higher
Pretravel	20°	25°	Substitute higher
Differential Travel	13°	15°	Substitute higher
Overtravel	50°	65°	Substitute higher
Operating Temperature Range	-25°C to 85°C	-25°C to 75°C	Substitute narrower
Electrical Life	500,000 Cycles	500,000 Cycles	Equivalent
Mechanical Life	5,000,000 Cycles	5,000,000 Cycles	Equivalent
Product Status	Obsolete	Active	Substitute active
RoHS Compliance	Yes	Yes	Equivalent

Engineering Selection Recommendations

The NGCMA30AX01A1B is the qualified substitute for the obsolete 91MCE16-S3. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical ratings, circuit configuration, and mechanical mounting specifications.

Product Status Advantage: The NGCMA30AX01A1B carries active product status, ensuring continued availability, technical support, and compliance with current manufacturing standards. The 91MCE16-S3 obsolete classification restricts future procurement and support options.

Compliance Certification: Both parts maintain RoHS compliance and identical ECCN (EAR99) and HTSUS (8536.50.9055) classifications, supporting regulatory and trade documentation requirements.

Mechanical Specification Differences: The NGCMA30AX01A1B exhibits higher operating force (18gfm versus 14gfm), increased pretravel (25° versus 20°), greater differential travel (15° versus 13°), and extended overtravel (65° versus 50°). These parameters indicate enhanced mechanical robustness and actuation precision in the substitute component.

Temperature Range Consideration: The NGCMA30AX01A1B operates across -25°C to 75°C, which is 10°C narrower at the upper limit compared to the 91MCE16-S3 (-25°C to 85°C). Applications requiring sustained operation above 75°C must evaluate this specification difference against system thermal requirements.

Inventory Status: The NGCMA30AX01A1B maintains 652 units in active stock, supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the NGCMA30AX01A1B directly replace the 91MCE16-S3 in existing designs?

A: The NGCMA30AX01A1B meets all mandatory electrical and mechanical substitution criteria. However, the upper operating temperature limit is reduced from 85°C to 75°C. Applications operating continuously above 75°C require thermal analysis to confirm compatibility.

Q: What are the key differences between these two components?

A: Both parts share identical electrical ratings (6A AC, 120V AC), circuit configuration (DPST-NO/NC), and mechanical mounting (chassis mount, IP67). The NGCMA30AX01A1B features higher actuation forces and travel angles, indicating enhanced mechanical performance. The 91MCE16-S3 supports a wider operating temperature range (to 85°C versus 75°C).

Q: Why is the 91MCE16-S3 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support. The NGCMA30AX01A1B represents the active equivalent, ensuring access to current manufacturing, technical documentation, and supply chain support.

Q: Are there any cable length differences?

A: The 91MCE16-S3 specifies a 3-meter cable length. The NGCMA30AX01A1B includes stainless steel roller construction. Cable length specifications for the substitute should be confirmed with the manufacturer for specific application requirements.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS compliant and classified under ECCN EAR99 and HTSUS 8536.50.9055, supporting identical regulatory and trade documentation requirements.

Q: How do the mechanical life ratings compare?

A: Both components specify 5,000,000 mechanical cycles and 500,000 electrical cycles, indicating equivalent durability and operational longevity.

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