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GLAD20A2B Equivalent & Substitute Parts Reference
Part Overview
The GLAD20A2B is a snap action DPDT (Double Pole Double Throw) switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis mount switch is rated for 6A AC at 120V and 550mA DC at 125V, featuring a side rotary actuator with adjustable roller and screw terminal connections. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain system functionality and ensure continued component availability for maintenance and new installations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | GLAD20A2B |
| Manufacturer | Honeywell Sensing and Productivity Solutions |
| Series | GLS |
| Product Status | Obsolete |
| Circuit Configuration | DPDT |
| Switch Function | On-Mom (On-Momentary) |
| Current Rating (AC) | 6A |
| Current Rating (DC) | 550mA |
| Voltage Rating (AC) | 120V |
| Voltage Rating (DC) | 125V |
| Actuator Type | Side Rotary, Adjustable Roller |
| Mounting Type | Chassis Mount |
| Termination Style | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Force | 33gfm |
| Operating Position | 26° |
| Pretravel | 26° |
| Differential Travel | 12° |
| Overtravel | 59° |
| Operating Temperature Range | -25°C to 85°C |
| Mechanical Life | 15,000,000 Cycles |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the GLAD20A2B is determined by strict equivalence across the following critical parameters:
Electrical Compatibility Parameters:
- Circuit configuration: DPDT
- Switch function: On-Mom
- Current rating: 6A (AC) and 550mA (DC)
- Voltage rating: 120V (AC) and 125V (DC)
Mechanical Compatibility Parameters:
- Actuator type: Side Rotary, Adjustable Roller
- Mounting type: Chassis Mount
- Termination style: Screw Terminal
- Operating force: 33gfm
- Mechanical life: 15,000,000 Cycles
- Operating position, pretravel, differential travel, and overtravel specifications
Environmental & Compliance Parameters:
- Ingress protection: IP67
- Operating temperature range: -25°C to 85°C
- RoHS compliance status
- Moisture sensitivity level: 1
The GLAA20A2A meets all these critical parameters and is classified as an active product, making it a direct functional equivalent for the obsolete GLAD20A2B.
Parameter Comparison
| Parameter | GLAD20A2B (Main Part) | GLAA20A2A (Substitute) |
|---|---|---|
| Manufacturer | Honeywell Sensing and Productivity Solutions | Honeywell Sensing and Productivity Solutions |
| Series | GLS | GLS |
| Product Status | Obsolete | Active |
| Circuit Configuration | DPDT | DPDT |
| Switch Function | On-Mom | On-Mom |
| Current Rating (AC) | 6A | 6A |
| Current Rating (DC) | 550mA | 550mA |
| Voltage Rating (AC) | 120V | 120V |
| Voltage Rating (DC) | 125V | 125V |
| Actuator Type | Side Rotary, Adjustable Roller | Side Rotary, Adjustable Roller |
| Roller Material | Steel Roller | Nylon Roller |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Screw Terminal | Screw Terminal |
| Ingress Protection | IP67 | IP67 |
| Operating Force | 33gfm | 33gfm |
| Operating Position | 26° | 26° |
| Pretravel | 26° | 26° |
| Differential Travel | 12° | 12° |
| Overtravel | 59° | 59° |
| Operating Temperature Range | -25°C to 85°C | -25°C to 85°C |
| Mechanical Life | 15,000,000 Cycles | 15,000,000 Cycles |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The GLAA20A2A is the direct equivalent substitute for the obsolete GLAD20A2B. Both components are manufactured by Honeywell Sensing and Productivity Solutions within the GLS series and share identical electrical, mechanical, and environmental specifications.
The primary distinction between the two parts is the roller material: the GLAD20A2B features a steel roller, while the GLAA20A2A features a nylon roller. Both materials are compatible with the specified operating parameters and environmental conditions (IP67, -25°C to 85°C).
The GLAA20A2A is classified as an active product with substantial inventory availability (1,000,100 pieces), ensuring reliable sourcing for replacement and new applications. Both parts maintain RoHS compliance and identical moisture sensitivity levels, supporting regulatory and environmental requirements.
For applications currently using the GLAD20A2B, direct substitution with the GLAA20A2A is supported across all electrical, mechanical, and environmental operating conditions.
Frequently Asked Questions (FAQ)
Q: Can the GLAA20A2A directly replace the GLAD20A2B in existing applications?
A: Yes. The GLAA20A2A is a direct functional equivalent. Both parts share identical circuit configuration (DPDT), switch function (On-Mom), current ratings (6A AC / 550mA DC), voltage ratings (120V AC / 125V DC), actuator type (Side Rotary, Adjustable Roller), mounting type (Chassis Mount), termination style (Screw Terminal), and all mechanical specifications including operating force, travel parameters, and mechanical life (15,000,000 cycles).
Q: What is the difference between the GLAD20A2B and GLAA20A2A?
A: The primary difference is the roller material. The GLAD20A2B uses a steel roller, while the GLAA20A2A uses a nylon roller. Both materials are compatible with the specified operating parameters and environmental conditions. The GLAA20A2A is an active product, whereas the GLAD20A2B is obsolete.
Q: Are both parts RoHS compliant?
A: Yes. Both the GLAD20A2B and GLAA20A2A are RoHS compliant and carry an MSL rating of 1 (Unlimited).
Q: What is the ingress protection rating for these switches?
A: Both parts are rated IP67, providing dust-tight and waterproof protection suitable for harsh environmental conditions.
Q: What is the operating temperature range for these switches?
A: Both the GLAD20A2B and GLAA20A2A operate across a temperature range of -25°C to 85°C.
Q: What mounting configuration do these switches support?
A: Both parts are chassis mount switches with screw terminal connections, designed for direct panel or enclosure installation.
Q: Is the GLAA20A2A currently available?
A: Yes. The GLAA20A2A is an active product with 1,000,100 pieces in stock, ensuring reliable availability for immediate procurement.
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