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BZ-2RLT04 Equivalent & Substitute Parts Reference
Part Overview
The BZ-2RLT04 is an active-status snap action switch manufactured by Honeywell Sensing and Productivity Solutions. This SPDT (Single Pole Double Throw) chassis mount switch is rated for 15A AC at 115V with lever/leaf actuator and screw terminal connections. The switch operates with an on-momentary function and is designed for applications requiring reliable snap action switching with mechanical life rated at 20,000,000 cycles. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage inventory across multiple suppliers, and maintain design compatibility when the primary part becomes unavailable.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | BZ-2RLT04 |
| Manufacturer | Honeywell Sensing and Productivity Solutions |
| Circuit Configuration | SPDT |
| Switch Function | On-Mom (On-Momentary) |
| Current Rating (AC) | 15A |
| Voltage Rating (AC) | 115V |
| Actuator Type | Lever, Leaf |
| Mounting Type | Chassis Mount |
| Termination Style | Screw Terminal |
| Operating Temperature Range | -55°C to 85°C |
| Mechanical Life | 20,000,000 Cycles |
| Product Status | Active |
| RoHS Status | RoHS Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the BZ-2RLT04 is determined by the following critical parameters:
Primary Compatibility Criteria:
- Circuit configuration must be SPDT
- Switch function must be On-Mom (On-Momentary)
- Actuator type must be Lever/Leaf
- Mounting type must be Chassis Mount
- Termination style must be Screw Terminal
Electrical Compatibility Criteria:
- AC current rating must be equal to or greater than 15A
- AC voltage rating must be equal to or greater than 115V
- Operating temperature range must encompass or exceed -55°C to 85°C
Mechanical and Regulatory Criteria:
- Mechanical life must support the application requirements
- RoHS compliance status must be maintained
- MSL rating must be 1 (Unlimited) or equivalent
The Z-15GL-B from Omron Automation and Safety meets all primary compatibility criteria. However, specific parameter differences exist that must be evaluated for application suitability.
Parameter Comparison
| Parameter | BZ-2RLT04 (Honeywell) | Z-15GL-B (Omron) | Compatibility Status |
|---|---|---|---|
| Circuit Configuration | SPDT | SPDT | Compatible |
| Switch Function | On-Mom | On-Mom | Compatible |
| Current Rating (AC) | 15A | 15A | Compatible |
| Voltage Rating (AC) | 115V | 125V | Compatible (Higher Rating) |
| Actuator Type | Lever, Leaf | Lever, Leaf | Compatible |
| Mounting Type | Chassis Mount | Chassis Mount | Compatible |
| Termination Style | Screw Terminal | Screw Terminal | Compatible |
| Operating Force | 106 ~ 141gf | 141gf | Within Range |
| Release Force | 14gf | 14gf | Compatible |
| Differential Travel | 0.050" (1.3mm) | 0.050" (1.3mm) | Compatible |
| Operating Temperature Range | -55°C to 85°C | -25°C to 80°C | Reduced Lower Limit |
| Mechanical Life | 20,000,000 Cycles | 10,000,000 Cycles | Lower Rating |
| Product Status | Active | Active | Compatible |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | Compatible |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Compatible |
Engineering Selection Recommendations
The Z-15GL-B from Omron Automation and Safety is an active-status substitute for the BZ-2RLT04. Both parts maintain active product status and comply with current RoHS regulations (RoHS Compliant and ROHS3 Compliant respectively). Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.
Key Considerations for Selection:
The Z-15GL-B provides equivalent electrical performance for AC applications at 15A, with a higher voltage rating of 125V compared to the BZ-2RLT04's 115V rating. This provides additional voltage margin in the application circuit.
The operating temperature range of the Z-15GL-B (-25°C to 80°C) is narrower than the BZ-2RLT04 (-55°C to 85°C). Applications requiring operation below -25°C or above 80°C must retain the BZ-2RLT04.
The mechanical life rating of the Z-15GL-B is 10,000,000 cycles, compared to 20,000,000 cycles for the BZ-2RLT04. Applications with cycle count requirements exceeding 10,000,000 cycles must use the BZ-2RLT04.
Both parts are currently in stock with substantial inventory availability (933 pcs for BZ-2RLT04 and 885 pcs for Z-15GL-B).
Frequently Asked Questions (FAQ)
Q: Can the Z-15GL-B replace the BZ-2RLT04 in all applications?
A: The Z-15GL-B is electrically and mechanically compatible for SPDT on-momentary switching at 15A AC. However, substitution is not suitable for applications requiring operation below -25°C, above 80°C, or exceeding 10,000,000 mechanical cycles. Verify your application's temperature range and cycle count requirements before substitution.
Q: What are the key differences between these two parts?
A: The primary differences are: (1) Operating temperature range—BZ-2RLT04 supports -55°C to 85°C while Z-15GL-B supports -25°C to 80°C; (2) Mechanical life—BZ-2RLT04 rated for 20,000,000 cycles versus Z-15GL-B at 10,000,000 cycles; (3) Voltage rating—Z-15GL-B has a higher 125V AC rating compared to BZ-2RLT04's 115V AC rating. All other parameters including circuit configuration, current rating, actuator type, and termination style are identical.
Q: Are both parts RoHS compliant?
A: Yes. The BZ-2RLT04 is RoHS Compliant and the Z-15GL-B is ROHS3 Compliant. Both meet current RoHS regulatory requirements and are suitable for applications with RoHS compliance mandates.
Q: What is the packaging format for both parts?
A: Both the BZ-2RLT04 and Z-15GL-B are supplied in Bulk packaging format.
Q: Do these switches have moisture sensitivity concerns?
A: No. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity level restrictions. Standard storage and handling practices are sufficient without special moisture control measures.
Q: Can the Z-15GL-B handle DC applications?
A: The Z-15GL-B is rated for 6A DC at 30V DC. The BZ-2RLT04 specifications provided do not include DC ratings. If your application requires DC switching, the Z-15GL-B provides this capability as an additional feature.
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