
3100Y20Q600 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $19.99 | Condition is New, New Mars 30 AMP 2 Pole Definite Purpose Contactor 91321 685744, shipping cost = $0.99 | 99.8% |
![]() | $21.95 | Condition is New, Mars 30 AMP 2 Pole Definite Purpose Contactor 91321, FREE SHIPPING | 99.9% |
![]() | $13.99 | Condition is New, Brand New (NIB) - 91321 Mars Definite Purpose Contactor 2 Pole, 30A, 24V AC, shipping cost = $9.69 | 100.0% |
![]() | $16.00 | Condition is New, NEW Mars 685744 91321 Definite Purpose Contactor 2 Pole 30 Amp 24 Volt, shipping cost = $7.90 | 100.0% |
![]() | $23.99 | Top Pick! Condition is New, Mars 91321 24 Volt VAC 2 Pole 30 Amp Condenser Contactor Relay 3100Y20Q600 50/6, FREE SHIPPING | ![]() |
![]() | $24.95 | Top Pick! Condition is New, Jard by Mars, 2 Pole Definite Purpose Contactor (30A, 24V), FREE SHIPPING | 99.7% |
![]() | $16.49 | Condition is New, New (NIB) Mars 91321 30A Contactor HEAVY DUTY 24 Volt Coil (3100Y20Q600) 2 pole, shipping cost = $9.69 | 100.0% |
![]() | $16.99 | Condition is New, New (NIB) Mars 91321 30A Contactor HEAVY DUTY 24 Volt Coil (3100Y20Q600) 2 pole, shipping cost = $9.69 | 100.0% |
![]() | $29.89 | Condition is New, Mars 91321 24 Volt VAC 2 Pole 30 Amp Condenser Contactor Relay 3100Y20Q600 50/60, FREE SHIPPING | ![]() |
![]() | $29.99 | Condition is New, 91321 NEW 2-pole Contactor 24 volt Coil 30 amp Mars for hvac a/c condenser, FREE SHIPPING | 100.0% |
![]() | $39.99 | Condition is New, 91321 NEW 2-pole Contactor 24 volt Coil 30 amp Mars for hvac a/c condenser, FREE SHIPPING | 99.9% |
![]() | $39.99 | Condition is New, 3 Pack Mars 91321 Definite Purpose Contactor 2 Poles 30 Full Load Amps 24 VAC, FREE SHIPPING | ![]() |
![]() | $32.19 | Condition is New, 91321 Mars - 2-pole Contactor 24 volt Coil 30 amp - HEAVY-DUTY REPLACEMENT BOXED, shipping cost = $8.75 | 99.8% |
![]() | $41.84 | Condition is New, 2 Pack Mars 91321 Definite Purpose Contactor 2 Poles 30 Full Load Amps 24 VAC, FREE SHIPPING | ![]() |
![]() | $49.99 | Condition is New, LOT OF 2 MARS 91321 DEFINITE PURPOSE CONTACTOR 2 POLE 30AMPS: 24 VAC, FREE SHIPPING | ![]() |
![]() | $49.99 | Top Pick! Condition is New, Mars Catalog No91321 Contactor 2-Poles 30 Full Load Amps 24 VAC, shipping cost = $9.35 | 100.0% |
![]() | $125.00 | Condition is New, MARS 91325/91321 30 Amp, 2 Pole, 24V Contactor with Lugs - 10 Pieces, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $10.36 | Condition is New – Open box, MARS 91321 Definite Purpose Contactor, 24 VAC Coil, 30 A, 2 Pole - NOS, shipping cost = $11.35 | 99.4% |
![]() | $21.99 | Condition is New – Open box, MARS 685744 / 91321 2 Pole 30 Amp 24V Coil Definite Purpose Contactor, FREE SHIPPING | 100.0% |
![]() | $24.99 | Top Pick! Condition is New – Open box, Mars Definite Purpose HVAC Contactor 685744-91321 Coil Voltage 24, New, FREE SHIPPING | 99.2% |
![]() | $25.00 | Top Pick! Condition is New – Open box, Mars 685744 91321 Definite Purpose Contactor 2 Pole 30 Amp 24 Volt, FREE SHIPPING | 100.0% |
![]() | $18.00 | Top Pick! Condition is New – Open box, 91321 NEW 2-pole Contactor 24 volt Coil 30 amp Mars for hvac a/c condenser, shipping cost = $9.14 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.99 | Condition is Used, Mars 3100Y20Q600 30 Amp 240-600VAC 24V Coil Contactor - Flawed, shipping cost = $11.95 | 99.8% |
![]() | $16.10 | Condition is Used, Mars Definite Purpose Contactor W/ Box 91321, shipping cost = $6.72 | 98.9% |
![]() | $15.00 | Condition is Used, Mars 91321 Definite Purpose Contactor w/ Screw Type Termination 30A 24V 2 Pole, shipping cost = $8.13 | 100.0% |
![]() | $16.99 | Condition is Used, Mars Contactor 91321; 3100Y20Q600; 24V; 50/60HZ---"USED", shipping cost = $10.50 | 99.7% |
![]() | $15.67 | Condition is Used, MARS 91321 / 91321 (USED), shipping cost = $12.90 | 99.7% |
![]() | $20.00 | Condition is Used, Mars 91321 Definite Purpose Contactors 1.5 Poles 30 FLA 24 VAC Open Style Vf4, shipping cost = $9.00 | 97.6% |
![]() | $24.99 | Condition is Used, Mars Contactor 91321; 3100Y20Q600; 24V; 50/60HZ, shipping cost = $9.02 | 100.0% |
![]() | $27.95 | Condition is Used, 91321 30 Amp Contactor HEAVY-DUTY Mars 24 Volt VAC (3100 Y 20Q600) 2 pole, shipping cost = $7.95 | 99.8% |
![]() | $17.95 | Condition is Used, MARS DEFINITE PURPOSE CONTACTOR (LOT OF 3) 2P, CAT# 91321 ... WO-18, shipping cost = $23.85 | 99.9% |
![]() | $68.60 | Condition is Used, Mars 91321 Contactor Fla30 Coil24Vac 50/60Hz, FREE SHIPPING | 98.3% |

The Mars 3100Y20Q600 Contactor, with the model number 91321, is a versatile and reliable electrical switching device designed for a wide range of applications. This 24V contactor is compatible with both 50 and 60Hz power supplies, making it a suitable choice for use in various regions worldwide.
The Mars 3100Y20Q600 Contactor is characterized by its robust construction, ensuring durability and long-term performance. It features a high-quality rust-resistant body, protecting it from environmental factors such as moisture and corrosion. The contactor also boasts a high-current carrying capacity, capable of handling up to 600 amperes, making it suitable for high-power applications.
The Mars 3100Y20Q600 Contactor operates on a 24V power supply, which is a common voltage level in various industrial and automation systems. This contactor is available in a variety of coil voltages, allowing it to be easily integrated into existing control systems.
The contactor's operating mechanism is characterized by its quick and reliable performance, ensuring smooth and precise switching of loads. It is designed to minimize arcing and sparking, reducing the risk of damage to the contactor and associated components.
The Mars 3100Y20Q600 Contactor is also equipped with a number of safety features, including overload protection and short-circuit protection. These features help to prevent damage to the contactor and the connected load in the event of abnormal operating conditions.
In summary, the Mars 3100Y20Q600 Contactor is a high-performance, reliable, and durable electrical switching device suitable for a wide range of applications. Its robust construction, high current carrying capacity, and compatibility with both 50 and 60Hz power supplies make it a versatile choice for industrial and automation systems. Additionally, its quick operating mechanism, safety features, and wide range of coil voltages ensure easy integration and smooth operation in various control systems.
The Mars 3100Y20Q600 contactor is a 24V, 50/60Hz, 3-phase, 10A to 600A contactor. Here are some pros and cons to consider before making a purchase: Pros:1. High current handling capacity: With a range of 10A to 600A, this contactor can handle a wide range of loads, making it a versatile choice for various applications.
2. Wide voltage range: Operating on both 50Hz and 60Hz, this contactor can be used in various parts of the world, eliminating the need for multiple contacts for different regions.
3. Long lifespan: The Mars 3100Y20Q600 contactor is known for its durability and long lifespan, making it a cost-effective option in the long run.
4. Compact size: Despite its high current handling capacity, the contactor is compact, making it easier to install and saving space in the control panel.
Cons:1. Limited voltage options: While the contactor operates on both 50Hz and 60Hz, it is only available in 24V. If you need a higher or lower voltage, you will need to look for a different model.
2. Limited operating temperature range: The contactor is rated for an operating temperature range of -40 C to 70 C, which may not be suitable for all applications.
3. Limited mounting options: The contactor has a standard mounting pattern, which may not fit all control panel designs.
In conclusion, the Mars 3100Y20Q600 contactor is a great choice for applications that require a high current handling capacity and a wide voltage range. Its durability and compact size make it an attractive option for cost-conscious buyers. However, its limited voltage options and operating temperature range may make it less suitable for some applications. It is recommended to carefully consider your specific requirements before making a purchase.
Details:
May have cosmetic scrapes /chips on body and tattered/pealing, removed labels stamps due to long term use. Please get in touch with us for expedited shipping. Cleaned and tested. May have missing accessories outside of what makes the item function able.
Replacements available.
specifications maxohvac:
- brand: Mars
- mpn: 3100y20q600
- model: 91321
- part type: Contactor
returns maxohvac:
- policy: no returns
payments maxohvac:
- other
- wallet: google-pay
- credit card: discover
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- started: september 12, 2024
- options: ship-to-home
- best offers: true
- sold #: 31
- in stock #: 5
- prices: $9.99–$125.00
- item condition:
- New
- New – Open box
- Used
- availability: in stock
shipping maxohvac:
- type: fixed
- service: usps priority mail
- transit: 5-9 days
- carrier: usps
- class: expedited
seller maxohvac:
- # reviews: 164
- rating: 96.9%
- city: perris, california































