
685744-90340 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $15.99 | Condition is New – Open box, Mars Switching Relay 685744-90340, FREE SHIPPING | 100.0% |
![]() | $14.00 | Condition is New – Open box, Mars 685744-90340 Switching Relay 24VAC Coil 50/60Hz NEW, shipping cost = $5.97 | 99.0% |
![]() | $19.99 | Condition is New – Open box, Mars 685744- 90340 Replacement Switching Relay 24VAC, 50/60Hz, Made in USA, FREE SHIPPING | 99.8% |
![]() | $22.50 | Condition is New – Open box, NEW MARS 685744-90340 SWITCHING RELAY, FREE SHIPPING | 100.0% |
![]() | $22.98 | Condition is New – Open box, Mars 685744-90340 Switching Relay. 9100Y233Q00, FREE SHIPPING | 100.0% |
![]() | $16.00 | Top Pick! Condition is New – Open box, MARS,685744-90340,SWITCHING RELAY 24VAC NOS, shipping cost = $8.75 | 99.9% |
![]() | $24.98 | Condition is New – Open box, Essex Mars 90340 Switching Relay 24VAC Coil Honeywell R4222D1014, FREE SHIPPING | 100.0% |
![]() | $20.97 | Condition is New – Open box, NEW MARS 685744-90340 Switching Relay 24VAC Coil Replaces R4222D1014, SO-340 , shipping cost = $8.80 | 99.8% |
![]() | $29.95 | Condition is New – Open box, LOT OF 2 NEW MARS 685744-90340 SWITCHING RELAY 24VAC 90340, FREE SHIPPING | 100.0% |
![]() | $23.18 | Condition is New – Open box, Mars 685744-90340 Switching Relay, shipping cost = $14.81 | 99.8% |
![]() | $218.21 | Condition is New – Open box, Lot of 16 Mars 685744-90340 24V AC 50/60 Hz Power Relays, shipping cost = $33.50 | 98.4% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $10.00 | Top Pick! Condition is Used, MARS 685744-90340 / 68574490340 (USED), shipping cost = $12.90 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.99 | Condition is New, MARS 685744-90340 SWITCHING RELAY 24 VAC, FREE SHIPPING | 99.9% |
![]() | $16.80 | Top Pick! Condition is New, Mars 90340 Switching Relay 24VAC Coil NEW, FREE SHIPPING | 100.0% |
![]() | $23.00 | Condition is New, = NEW MARS 685744-90340 Switching Relay, Replaces R4222D1014, 90-340 NOS E1-57, FREE SHIPPING | ![]() |
![]() | $20.00 | Condition is New, Mars 90340 Switching Relay 24VAC Coil Replaces Essex 90-340/Honeywell R4222D1014, shipping cost = $16.50 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $39.95 | Condition is Seller refurbished, GENUINE MARS 685744-90340 Switching Relay Coil 24V, 50/60Hz OEM, shipping cost = $14.94 | 100.0% |

The Mars 685744-90340 Switching Relay, model number 9100Y233Q00, is a versatile and reliable electrical component designed for various automation applications. This switching relay offers a robust solution for controlling electrical loads up to 10A at 250V AC or 30V DC.
The 9100Y233Q00 is a single-pole double-throw (SPDT) type relay, which means it has one normally open (NO) contact and one normally closed (NC) contact. The relay operates on a coil voltage of 12V DC and consumes approximately 0.37W of power when the coil is energized.
This Mars relay features a compact size with dimensions of 48.5mm (L) x 31.5mm (W) x 21.5mm (H), making it suitable for space-constrained installations. It is also designed with a rugged construction, ensuring it can withstand harsh environments and heavy usage.
The 9100Y233Q00 comes with a clear and concise front panel label, making it easy to identify the NO and NC contacts. The relay also includes a built-in diode, which protects the coil from inductive kickback when the contacts switch.
To ensure reliable operation, this Mars switching relay is subjected to rigorous testing procedures during the manufacturing process. It meets the RoHS and REACH directives, making it an eco-friendly choice for your automation projects.
The Mars 685744-90340 Switching Relay, model number 9100Y233Q00, is an excellent component for various industrial, commercial, and residential automation applications where you need to control electrical loads using a simple and compact relay. With its robust construction, reliable performance, and energy efficiency, this switching relay will help you streamline your automation projects and improve their overall functionality.
Pros and Cons of Buying Mars 685744-90340 Switching Relay 9100Y233Q00
The Mars 685744-90340 Switching Relay 9100Y233Q00 is a commonly used electrical component in various automation and control systems. This relay is known for its durability and reliability. In this analysis, we will discuss the key advantages and disadvantages of purchasing this relay.
Pros:1. High Load Capacity: This relay can handle a high load current and voltage, making it suitable for industrial applications where large electrical loads need to be controlled.
2. Robust Design: The Mars 685744-90340 Switching Relay 9100Y233Q00 is built with a robust design, ensuring it can withstand harsh environments and heavy usage.
3. Quick Response Time: This relay has a fast response time, allowing for efficient control of electrical loads and minimizing power consumption.
4. Easy to Install: The relay is easy to install, with clear labeling and a user-friendly design. It can be mounted in various orientations, making it versatile for different applications.
5. Cost-Effective: Compared to other relays with similar specifications, the Mars 685744-90340 Switching Relay 9100Y233Q00 is cost-effective, making it a popular choice for many industries.
Cons:1. Limited Number of Contacts: This relay has a limited number of contacts, which may not be sufficient for some complex control applications.
2. Larger Size: Due to its high load capacity and robust design, the relay is larger in size compared to some other relays, which may be a concern for space-constrained applications.
3. Requires External Coil: The relay requires an external coil to operate, which may add to the overall cost and complexity of the system.
Conclusion:The Mars 685744-90340 Switching Relay 9100Y233Q00 offers several advantages, including high load capacity, robust design, quick response time, easy installation, and cost-effectiveness. However, it has some limitations, such as a limited number of contacts and a larger size. Considering these factors, this relay is an excellent choice for industrial applications where high load current and voltage control is required and space is not a major concern.
Recommendation:If you're looking for a reliable and cost-effective switching relay for industrial applications, the Mars 685744-90340 Switching Relay 9100Y233Q00 is a strong contender. Its high load capacity, robust design, quick response time, and easy installation make it a popular choice among engineers and system integrators. However, if you require a relay with a larger number of contacts or a smaller size, you may need to explore other options.
Details:
Mars switching relay.
specifications maxohvac:
- brand: Mars
- mpn: 685744-90340
returns maxohvac:
- policy: returns accepted
- method: money back
- paid by: seller
- time: 30 days
seller maxohvac:
- city: waterloo, wisconsin
- rating: 100.0%
- # reviews: 1691
offer maxohvac:
- in stock #: 5
- sold #: 20
- availability: in stock
- best offers: true
- started: august 24, 2025
- prices: $10.00–$218.21
- item condition:
- New – Open box
- Used
- New
- Seller refurbished
- options: ship-to-home
payments maxohvac:
- credit card: mastercard
- wallet: apple-pay
- other
shipping maxohvac:
- type: calculated
- transit: 4-9 days
- class: standard
- service: usps ground advantage
- carrier: usps
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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