Best Well Pump Start Relay Options for Franklin Control Boxes
Choosing the right well pump start relay is essential for reliable operation of 5–15 HP Franklin control boxes at 230V. This guide highlights five compatible relays, detailing compatibility, construction, and installation considerations. Each option is designed to replace common part numbers 155031102, 155031110, and 305213902, ensuring a straightforward upgrade for many conventional well pump systems.
| Product | Brand | Voltage | Horsepower Range | Compatibility |
|---|---|---|---|---|
| Formiden RVA2ALKL Control Box Well Pump Relay | Formiden | 230V | 5–15 HP | Franklin control boxes, replaces 155031102/110 and 305213902 |
| WYZBEN RVA2ALKL Control Box Relay | WYZBEN | 230V | 5–15 HP | Franklin control boxes, replaces 155031102/110 and 305213902 |
| JUWEVAZU RVA2ALKL Well Pump Relay | JUWEVAZU | 230V | 5–15 HP | Franklin control boxes, replaces 155031102/110 and 305213902 |
| LDCRE 1PCS RVA2ALKL Control Box | LDCRE | 230V | 5–15 HP | Franklin control boxes, replaces 155031102/110/305213902 |
| Well Pump Relay Control Box (Repustor) | repustor | 230V | 5–15 HP | Franklin control boxes, replaces 155031102/110/305213902 |
Formiden RVA2ALKL Control Box Well Pump Relay

Brand: Formiden
Voltage: 230V • HP Range: 5–15
Features include a direct replacement for part numbers 155031102, 155031110, and 305213902, ensuring a hassle-free installation. The device is designed to precisely fit Franklin control boxes for well pumps at 230V, enabling seamless integration with conventional systems. Built with durable materials, this 35 amp RVA potential starting relay is designed for longevity and reliable performance in demanding environments.
WYZBEN rva2alkl Control Box Relay 230V

Brand: WYZBEN
Voltage: 230V • HP Range: 5–15
Features include a 35 amp RVA starting relay compatible with Franklin control boxes. It can be used on air conditioning and refrigeration systems as well as submersible pumps. The replacement targets part numbers 155031102, 155031110, and 305213902, offering a straightforward upgrade path with reliable materials for long-term use.
JUWEVAZU rva2alkl Well Pump Relay

Brand: JUWEVAZU
Voltage: 230V • HP Range: 5–15
Precisely compatible with Franklin control boxes (5–15 HP, 230V) and other conventional well pump boxes. Replace part numbers 155031102, 155031110, 305213902. The relay is described as reliable and wear-resistant, offering durable performance and an after-sales guarantee for peace of mind.
LDCRE RVA2ALKL Control Box

Brand: LDCRE
Voltage: 230V • HP Range: 5–15
Designed for Franklin control boxes and other conventional well pump control boxes, this 35 amp RVA potential starting relay replaces OE parts 155031102, 155031110, 305213902. It emphasizes a precise fit and robust construction to ensure dependable daily operation.
Well Pump Relay Control Box (Repustor)

Brand: repustor
Voltage: 230V • HP Range: 5–15
Replacement kit for Franklin control boxes 5–15 HP at 230V, replacing 155031102, 155031110, 305213902. The package includes a single Well Pump Relay as shown, promising straightforward substitution and compatibility with standard control boxes.
Buying Guide
- Compatibility and replacements: Verify that the relay directly replaces the OE part numbers 155031102, 155031110, and 305213902. This ensures seamless integration with Franklin control boxes and a range of conventional well pump setups.
- Voltage and horsepower: Focus on models designed for 230V and a 5–15 HP range. Mismatches can lead to motor starting issues or reduced performance.
- Construction and durability: Choose relays built to resist wear, heat, and outdoor exposure. Weather-resistant enclosures or robust housings extend service life in well environments.
- Installation ease: Prefer direct replacement relays with clear wiring compatibility. A straightforward upgrade minimizes downtime and reduces the risk of wiring errors.
- Protection and safety: Consider relays that provide solid isolation, reliable contacts, and protection against surges. This helps prevent premature failure and protects the control system.
- After-sales support and warranty: Look for brands offering reasonable warranties and accessible support to address any installation or performance questions.
- Price-to-value comparison: While all options aim to replace the same OE parts, compare materials, mounting options (panel vs. inline), and enclosure features to determine long-term value beyond upfront cost.
- Alternative configurations: If your system uses a different coil voltage or a non-Franklin control box, ensure the relay aligns with those specifications or consider a model explicitly marketed for your setup.