91MCE16-S1 Equivalent & Substitute Parts Reference

Part Overview

The 91MCE16-S1 is a snap action DPST switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with 6A AC and 550mA DC current capacity at 120V AC / 125V DC. This component features a side rotary roller actuator, IP67 ingress protection, and 1-meter cable leads for industrial control applications.

The 91MCE16-S1 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new design implementations where this switch type is specified.

Key Parameters

Parameter	Value
Circuit Configuration	DPST-NO/NC
Switch Function	On-Mom, Off-Mom
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 Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE16-S1 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

Circuit configuration must be DPST-NO/NC
Switch function must be On-Mom, Off-Mom
Current rating must support minimum 6A AC and 550mA DC
Voltage rating must support minimum 120V AC and 125V DC

Mechanical Compatibility Requirements:

Actuator type must be Side Rotary, Roller
Mounting type must be Chassis Mount
Termination style must be Cable Leads
Ingress protection must be IP67 or equivalent

Environmental & Compliance Requirements:

Operating temperature range must encompass or exceed -25°C to 85°C
RoHS compliance status must be maintained
Electrical and mechanical life ratings must meet or exceed specified values

Parts meeting all these criteria are classified as direct substitutes. The NGCMA10AX01A1B satisfies all substitution parameters and is listed as an active product.

Parameter Comparison

Parameter	91MCE16-S1	NGCMA10AX01A1B	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 - Dust Tight, Waterproof	IP67 - Dust Tight, Waterproof	Equivalent
Operating Temperature Range	-25°C to 85°C	-25°C to 75°C	NGCMA10AX01A1B has narrower range
Electrical Life	500,000 Cycles	500,000 Cycles	Equivalent
Mechanical Life	5,000,000 Cycles	5,000,000 Cycles	Equivalent
RoHS Status	RoHS Compliant	RoHS Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is active

Engineering Selection Recommendations

The NGCMA10AX01A1B is a direct functional substitute for the obsolete 91MCE16-S1. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical ratings, circuit configuration, and mechanical specifications.

Selection Basis:

The NGCMA10AX01A1B is recommended as the primary substitute based on:

Product Status: The NGCMA10AX01A1B is active and currently in production, ensuring long-term availability and supply chain continuity.
Electrical Equivalence: Both parts maintain identical current ratings (6A AC / 550mA DC) and voltage ratings (120V AC / 125V DC), ensuring direct functional replacement in existing circuits.
Mechanical Equivalence: Both parts feature identical actuator type (Side Rotary, Roller), mounting configuration (Chassis Mount), and termination style (Cable Leads), enabling direct mechanical installation.
Environmental Protection: Both parts maintain IP67 ingress protection rating, suitable for dust-tight and waterproof applications.
Compliance: Both parts are RoHS compliant, meeting current regulatory requirements.

Operating Temperature Consideration:

The NGCMA10AX01A1B operates across -25°C to 75°C, compared to the 91MCE16-S1 range of -25°C to 85°C. Applications requiring operation above 75°C must evaluate this specification difference against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the NGCMA10AX01A1B directly replace the 91MCE16-S1 in existing installations?

A: Yes. Both components share identical electrical ratings (6A AC / 550mA DC at 120V AC / 125V DC), circuit configuration (DPST-NO/NC), actuator type (Side Rotary, Roller), mounting type (Chassis Mount), and termination style (Cable Leads). Direct mechanical and electrical substitution is supported.

Q: What is the primary difference between these two parts?

A: The 91MCE16-S1 is obsolete, while the NGCMA10AX01A1B is an active product. The NGCMA10AX01A1B operates across -25°C to 75°C, whereas the 91MCE16-S1 operates to 85°C. For applications requiring operation above 75°C, the temperature specification must be evaluated.

Q: Are both parts RoHS compliant?

A: Yes. Both the 91MCE16-S1 and NGCMA10AX01A1B are RoHS compliant.

Q: What packaging is available for the NGCMA10AX01A1B?

A: The NGCMA10AX01A1B is supplied in bulk packaging.

Q: Do both parts have the same cable lead length?

A: The 91MCE16-S1 features a 1-meter cable length. The NGCMA10AX01A1B is specified with stainless steel roller construction. Cable length specifications for the NGCMA10AX01A1B should be confirmed with the manufacturer for specific applications.

Q: What is the electrical life expectancy for both parts?

A: Both the 91MCE16-S1 and NGCMA10AX01A1B are rated for 500,000 electrical cycles and 5,000,000 mechanical cycles.

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