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You are comparing the reliance controls a510a pro tran2 50 amp 10 circuit vs 310c pro tran2. Both are manual transfer switches with ten circuits. They share identical dimensions and operation types. The main difference is the current rating. One handles 50 amps. The other handles 30 amps. This affects how much power you can draw from your generator. You need to match the switch to your generator output.
Current Rating
50-Amp
30-Amp
Model Number
A510A
310C
Weight
17 pounds
16.8 pounds
Choose the first if
- You have a generator that outputs up to 50 amps.
- You want to power more high-draw appliances simultaneously.
Choose the second if
- You have a generator rated at 30 amps or less.
- You need a slightly lighter unit for easier handling.
Verdict
Choose the A510A if your generator provides 50 amps. Choose the 310C if your generator is limited to 30 amps. Both offer ten circuits for flexible home backup.
50-Amp vs 30-Amp Transfer Switches
Current capacity
Edge: Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch
The Reliance Controls A510A Pro/Tran2 is rated for 50 amps. This higher amperage allows you to power more circuits simultaneously or support higher-load appliances. The Reliance Controls 310C Pro/Tran2 is rated for 30 amps. While both models offer ten circuits, the 50-amp unit provides greater total power headroom. If your essential loads require significant combined wattage, the A510A offers a clear advantage in raw capacity. The 30-amp model is sufficient for lighter loads but limits your total simultaneous draw.
Circuit count
Edge: Tie
Both transfer switches provide ten individual circuits. This means you can connect the same number of essential home outlets or breakers to either unit. The A510A and the 310C offer identical flexibility in terms of how many separate lines you can manage during a power outage. Neither model gives you more or fewer connection points than the other. You will wire ten circuits regardless of which model you choose. The distribution of power across these ten lines depends entirely on the amperage rating of the specific unit.
Physical dimensions
Edge: Tie
The A510A and the 310C share identical physical dimensions. Both units measure 11.8 inches in length, 11 inches in height, and 4.5 inches in width. This consistency means they will fit into the same mounting space in your electrical panel or transfer switch enclosure. You do not need to adjust your installation layout based on size. The footprint is exactly the same for both models. This makes swapping between them or choosing based on other factors easier since space constraints are not a differentiating variable.
Weight
Edge: Tie
The A510A weighs 17 pounds. The 310C weighs 16.8 pounds. The difference is 0.2 pounds, which is negligible for installation purposes. Both units are manual transfer switches designed for wall or panel mounting. The slight weight variation does not impact stability or handling during installation. You will not notice a difference in how either unit feels when you are securing it to your structure. The build density appears similar given the identical dimensions and minimal weight difference.
Operation type
Edge: Tie
Both models are manual transfer switches. You must physically turn the handle to switch between utility power and generator power. Neither the A510A nor the 310C offers automatic transfer capabilities. This requires you to be present or nearby when power is restored or when you start your generator. The manual operation is consistent across both amperage ratings. You get the same user interaction experience regardless of whether you choose the 50-amp or 30-amp model. Reliance Controls maintains this operational standard across its Pro/Tran2 line.
Which Reliance Controls Transfer Switch Is Best For You
Users needing high power for heavy appliances
Our pick: Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch
Choose the 50-amp model if you plan to run high-draw equipment like central air conditioning or electric heating. The 50-amp rating provides significantly more capacity than the 30-amp version. This extra headroom ensures you can power multiple large circuits simultaneously without overloading the transfer switch during extended outages.
Budget-conscious buyers with lower power needs
Our pick: Reliance Controls 30 Amp Manual Transfer Switch
The 30-amp model is sufficient for powering essential circuits like lights, refrigerators, and sump pumps. It offers the same ten-circuit capacity and identical physical dimensions as the larger unit. If your total connected load stays under 30 amps, this model provides the necessary functionality without the higher current rating you do not need.
Those requiring identical installation dimensions
Our pick: Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch
Both units measure 4.5 by 11 by 11.8 inches and weigh nearly the same. You can swap either model into an existing enclosure without modifying the cutout or mounting structure. The choice depends entirely on your electrical load requirements, as the physical footprint and manual operation style remain consistent across both models.
Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch
Best for: 50-amp generators with 10 circuits
- Current Rating
- 50-Amp
- Operation Type
- Manual
- Circuit Count
- 10-Circuit
- Amperage
- 50A
- Dimensions
- 11.8 × 4.5 × 11 inches
- Weight
- 17 pounds
This manual transfer switch handles 50 amps across 10 circuits. It measures 11.8 inches long, 11 inches high, and 4.5 inches wide. The unit weighs 17 pounds. You should choose this model if your generator or power source provides 50 amps. It allows you to manually switch between utility power and backup power for your home.
- Supports up to 50 amps of current
- Manages 10 separate circuits
- Manual operation type
- Gray color finish
- Heavier at 17 pounds compared to the 30-Amp model
- Larger dimensions at 11.8 inches long and 11 inches high
- Requires manual switching operation
- You need to power 10 different circuits
- Your generator supplies 50 amps
- You prefer manual control over automatic switching
- You only need a 30-amp connection
- You want automatic transfer capabilities
- You need a lighter or more compact unit
Verdict: Reliance Controls 50-Amp 10-Circuit Transfer Switch fits homes requiring higher power capacity and more circuit coverage. It suits buyers with 50-amp generators who need to manage ten essential circuits manually.
Reliance Controls 30 Amp Manual Transfer Switch
Best for: 30-amp generator backup for 10 circuits
- Current Rating
- 30-Amp
- Operation Type
- Manual
- Circuit Count
- 10-Circuit
- Dimensions
- 11.8 × 4.5 × 11 inches
- Weight
- 16.8 pounds
This manual transfer switch handles 10 circuits with a 30-amp rating. It measures 11.8 inches long, 11 inches high, and 4.5 inches wide. The unit weighs 16.8 pounds. You should choose this model if your generator provides 30 amps. It suits homes needing backup for essential loads without requiring higher amperage. The manual operation ensures reliable switching during outages.
- 10-circuit capacity for multiple loads
- 30-amp current rating
- Manual operation for control
- Compact 4.5-inch width
- 30-amp rating is lower than the 50-amp option
- 16.8-pound weight adds bulk to installation
- You need to power 10 essential circuits
- You have a 30-amp generator
- You prefer manual switching control
- You require more than 30 amps
- You want automatic transfer capabilities
- You need to power more than 10 circuits
Verdict: Reliance Controls 30-Amp 10-Circuit Manual Transfer Switch fits users with 30-amp generators who need to backup 10 specific circuits. It is ideal for those who want a straightforward manual solution.
Specifications side by side
| Spec | Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch | Reliance Controls 30 Amp Manual Transfer Switch |
|---|---|---|
| Current Rating | 50-Amp | 30-Amp |
| Operation Type | Manual | Manual |
| Circuit Count | 10-Circuit | 10-Circuit |
| Amperage | 50A | 30 Amp |
| Operation | Manual | Manual |
| Dimensions | 11.8 × 4.5 × 11 inches | 11.8 × 4.5 × 11 inches |
| Weight | 17 pounds | 16.8 pounds |
| Color | Gray | – |
| Model | A510A | 310C |
Frequently asked questions
Are both Reliance Controls transfer switches manual?
Yes, both models operate manually. You must physically turn the switch to transfer power from the utility grid to your generator. Neither the 50-amp A510A nor the 30-amp 310C features automatic transfer capabilities. This requires you to be present to manage the power source change during an outage.
Do the A510A and 310C have the same physical size?
Both units share identical external dimensions. Each measures 11.8 inches in length, 11 inches in height, and 4.5 inches in width. The 50-amp version weighs 17 pounds, while the 30-amp model weighs 16.8 pounds. You can use the same mounting space for either unit without needing to adjust your installation layout.
Can I use a 30-amp generator with the 50-amp switch?
Yes, you can connect a 30-amp generator to the 50-amp A510A transfer switch. The switch is rated for up to 50 amps, so it safely handles lower current inputs. However, you will be limited by your generator's 30-amp output capacity, not the switch's maximum rating. This setup works for smaller backup needs.
Is the Reliance Controls A510A gray in color?
Yes, the Reliance Controls 50-Amp 10-Circuit Manual Transfer Switch (model A510A) is gray. This color matches standard electrical enclosures and utility boxes. The finish is designed for outdoor durability and visual consistency with other home electrical components. The color does not affect performance but helps it blend into your installation area.
How many circuits do these transfer switches support?
Both the 50-amp and 30-amp models support ten circuits. This allows you to select which specific household loads receive power during an outage. You can prioritize essential items like refrigerators, lights, or sump pumps. The circuit count is identical, so your ability to manage specific loads remains the same regardless of amperage.
Which model is heavier?
The 50-amp A510A model is slightly heavier. It weighs 17 pounds, compared to the 30-amp 310C model, which weighs 16.8 pounds. The difference is minimal and unlikely to impact mounting requirements. Both units are designed for wall installation and include standard hardware for secure attachment to your home's electrical panel.
