BZ-2RW8244-A2 Equivalent & Substitute Parts

Part Overview

The BZ-2RW8244-A2 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 5A at 125V AC and 500mA at 125V DC, featuring a straight lever actuator with screw terminal connections. The product is Active status and RoHS Compliant, designed for applications requiring reliable on-momentary switching action with high mechanical durability of 20,000,000 cycles.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter ranges for this switch category. Alternatives may be required due to inventory availability, lead time considerations, or specific application requirements within compatible electrical and mechanical specifications.

Key Parameters

Parameter	BZ-2RW8244-A2 Value	Substitution Relevance
Circuit Configuration	SPDT	Critical - must match
Switch Function	On-Mom	Critical - must match
Current Rating (AC)	5A @ 125V	Critical - substitute must support
Current Rating (DC)	500mA @ 125V	Critical - substitute must support
Actuator Type	Lever, Straight	Critical - mechanical compatibility
Mounting Type	Chassis Mount	Critical - must match
Termination Style	Screw Terminal	Critical - must match
Operating Temperature Range	-55°C ~ 204°C	Application dependent
Mechanical Life	20,000,000 Cycles	Application dependent
RoHS Status	RoHS Compliant	Regulatory requirement

Substitute Part Grouping Explanation

Substitution logic for the BZ-2RW8244-A2 is based on the following allowed parameters:

Electrical Compatibility Requirements:

Circuit must be SPDT (Single Pole Double Throw)
Switch function must be On-Mom (On-Momentary)
AC voltage rating must support minimum 125V
DC voltage rating must support minimum 125V
Current capacity must support minimum 5A AC or equivalent DC rating

Mechanical Compatibility Requirements:

Actuator type must be Lever, Straight
Mounting type must be Chassis Mount
Termination style must be Screw Terminal

Regulatory Requirements:

RoHS compliance status must be active (RoHS Compliant or ROHS3 Compliant)
Moisture Sensitivity Level must be 1 (Unlimited)

Substitute parts are grouped into two categories based on their electrical ratings relative to the main part specifications.

Parameter Comparison

Parameter	BZ-2RW8244-A2	Z-15GW-B	Z-15GW3-B	Z-15GW4-B	Z-15GW55-B	X-10GW-B	X-10GW4-B
Manufacturer	Honeywell	Omron	Omron	Omron	Omron	Omron	Omron
Circuit	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT	SPDT
Switch Function	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom	On-Mom
Current Rating (AC)	5A @ 125V	15A @ 125V	15A @ 125V	15A @ 125V	15A @ 125V	—	—
Current Rating (DC)	500mA @ 125V	6A @ 30V	6A @ 30V	6A @ 30V	6A @ 30V	10A @ 30V	10A @ 30V
Voltage Rating (AC)	125V	125V	125V	125V	125V	—	—
Voltage Rating (DC)	125V	30V	30V	30V	30V	30V	30V
Actuator Type	Lever, Straight	Lever, Straight	Lever, Straight	Lever, Straight	Lever, Straight	Lever, Straight	Lever, Straight
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Operating Temperature	-55°C ~ 204°C	-25°C ~ 80°C	-25°C ~ 80°C	-25°C ~ 80°C	-15°C ~ 80°C	-25°C ~ 80°C	-25°C ~ 80°C
Mechanical Life	20,000,000 Cycles	10,000,000 Cycles	10,000,000 Cycles	10,000,000 Cycles	10,000,000 Cycles	1,000,000 Cycles	1,000,000 Cycles
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tray	Bulk	Bulk	Bulk	Bulk	Bulk
Inventory Status	1112 Pcs	3300 Pcs	864 Pcs	35397 Pcs	710 Pcs	20099 Pcs	801 Pcs

Engineering Selection Recommendations

Primary Substitutes (Z-Series - Omron):

The Z-15GW-B, Z-15GW3-B, Z-15GW4-B, and Z-15GW55-B are qualified substitutes for AC applications. These parts maintain SPDT circuit configuration, On-Mom function, straight lever actuator, chassis mount, and screw terminal specifications. All Z-series alternatives support 15A at 125V AC, exceeding the BZ-2RW8244-A2 requirement of 5A at 125V AC. All Z-series parts are ROHS3 Compliant with MSL 1 rating.

Z-15GW-B offers standard performance with 10,000,000 mechanical cycles and 500,000 electrical cycles. Operating temperature range is -25°C ~ 80°C.

Z-15GW3-B provides identical electrical specifications with slightly different mechanical parameters (80gf operating force, 15gf release force, 0.045" differential travel).

Z-15GW4-B features reduced operating force (28gf) and release force (3.5gf) with 0.394" pretravel, suitable for applications requiring lighter actuation. This variant has the highest inventory availability at 35,397 pieces.

Z-15GW55-B includes IP62 ingress protection rating and operates across -15°C ~ 80°C temperature range, with 100gf operating force and 0.080" differential travel.

Secondary Substitutes (X-Series - Omron):

The X-10GW-B and X-10GW4-B are limited substitutes applicable only to DC applications at 30V or lower. These parts do not support the 125V AC rating of the main part. X-series switches are rated for 10A DC at 30V maximum. Mechanical life is significantly lower at 1,000,000 cycles compared to the main part's 20,000,000 cycles. These substitutes are not recommended for direct replacement in AC circuits.

Compliance and Regulatory Status:

All substitute parts maintain RoHS compliance (ROHS3 Compliant) and MSL 1 (Unlimited) moisture sensitivity rating, meeting regulatory requirements equivalent to the main part. Z-series parts are REACH Affected or REACH Unaffected as specified; X-series parts are REACH Affected.

Selection Criteria Summary:

For AC applications at 125V: Select from Z-15GW series (Z-15GW-B, Z-15GW3-B, Z-15GW4-B, Z-15GW55-B).

For DC applications at 30V or lower: X-10GW-B or X-10GW4-B may be considered only if application voltage and current requirements do not exceed 10A DC at 30V.

For extended temperature operation below -25°C: BZ-2RW8244-A2 is required (operating range -55°C ~ 204°C).

For high-cycle applications requiring 20,000,000+ mechanical life: BZ-2RW8244-A2 is required; Z-series alternatives provide 10,000,000 cycles maximum.

Frequently Asked Questions (FAQ)

Q: Can Z-15GW4-B replace BZ-2RW8244-A2 in all applications?

A: Z-15GW4-B is a qualified substitute for AC applications operating at 125V or lower. The part supports 15A at 125V AC, exceeding the 5A requirement. However, if your application requires operation below -25°C or above 80°C, the BZ-2RW8244-A2 extended temperature range (-55°C ~ 204°C) is necessary. If mechanical life requirements exceed 10,000,000 cycles, the BZ-2RW8244-A2 with 20,000,000 cycles is required.

Q: What is the difference between Z-15GW-B and Z-15GW4-B?

A: Both parts are SPDT On-Mom switches with identical electrical ratings (15A @ 125V AC). The primary differences are mechanical: Z-15GW-B has 70gf operating force and 14gf release force with no pretravel; Z-15GW4-B has 28gf operating force, 3.5gf release force, and 0.394" pretravel. Z-15GW4-B requires lighter actuation force. Z-15GW4-B has significantly higher inventory (35,397 pieces vs. 3,300 pieces).

Q: Can X-10GW-B be used as a substitute for BZ-2RW8244-A2?

A: X-10GW-B is not a suitable substitute for the BZ-2RW8244-A2 in standard applications. The X-10GW-B is rated for 10A DC at 30V maximum and does not support 125V AC operation. The BZ-2RW8244-A2 is rated for 5A at 125V AC. X-10GW-B is applicable only to DC circuits operating at 30V or lower. Additionally, X-10GW-B mechanical life is 1,000,000 cycles, significantly lower than the BZ-2RW8244-A2 rating of 20,000,000 cycles.

Q: Does Z-15GW55-B offer any advantages over other Z-series substitutes?

A: Z-15GW55-B includes IP62 ingress protection rating, providing sealed operation against water and dust ingress. Standard Z-series parts (Z-15GW-B, Z-15GW3-B, Z-15GW4-B) have IP00 rating with no ingress protection. Z-15GW55-B is specified for applications requiring environmental sealing. Operating temperature range is -15°C ~ 80°C (narrower than Z-15GW-B at -25°C ~ 80°C). Inventory is limited at 710 pieces.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant, meeting current RoHS requirements. The main part BZ-2RW8244-A2 is RoHS Compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging options are available?

A: BZ-2RW8244-A2 is supplied in Bulk packaging. Z-15GW-B is supplied in Tray packaging; Z-15GW3-B, Z-15GW4-B, and Z-15GW55-B are supplied in Bulk packaging. X-10GW-B and X-10GW4-B are supplied in Bulk packaging. Packaging selection may affect procurement and handling procedures.

Q: Which substitute has the best availability?

A: Z-15GW4-B has the highest inventory at 35,397 pieces in stock. X-10GW-B has 20,099 pieces. Z-15GW-B has 3,300 pieces. Z-15GW3-B has 864 pieces. Z-15GW55-B has 710 pieces. X-10GW4-B has 801 pieces.

Q: Can I use a substitute with lower mechanical life rating?

A: Substitution with lower mechanical life is application-dependent. BZ-2RW8244-A2 is rated for 20,000,000 cycles. Z-series substitutes provide 10,000,000 cycles. X-series substitutes provide 1,000,000 cycles. If your application requires 20,000,000+ cycle life, the BZ-2RW8244-A2 is necessary. For applications with lower cycle requirements, substitutes with reduced mechanical life ratings are acceptable.

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