Rain Bird ESPSM3 3-Station Expansion Module Brand: Rain Bird SKU: ESPSM3 (F38200) Product Details The Rain Bird ESPSM3 is a 3-station expansion module designed to scale your irrigation system as your landscape grows. This module allows you to easily upgrade your Rain Bird modular controller without the need to purchase an entirely new unit. Engineered with "hot-swappable" technology, the ESPSM3 can be installed into any available slot in the controller bay while the power is still on. Whether you are adding a new flower bed, a small turf area, or a drip zone, this module provides a reliable, plug-and-play solution for residential and light commercial irrigation management. Key Features: Hot-Swappable Design: Install or remove the module at any time without having to power down or restart the controller. Seamless Integration: The controller automatically recognizes the new stations as soon as the module is snapped into place. Universal Slot Compatibility: Can be placed in any available expansion bay within the controller cabinet. Superior Surge Protection: Built-in MOVs (Metal Oxide Varistors) protect the microcircuitry from electrical surges and lightning strikes. Durable Terminal Contacts: Features high-quality screw terminals for secure, long-lasting wire connections. Specifications: Number of Stations: 3 Additional Stations Compatible Controllers: ESP-Me, ESP-ME3, ESP-M, ESP-SMT, and ESP-SMTe Series Installation Type: Internal Bay Slide-in Voltage Output: 24V AC Material: Heavy-duty, UV-resistant plastic Installation & Maintenance Tips: Simple Snap-In: Open the controller door, locate an empty bay, and slide the module in until it clicks. No tools are required for the module installation itself. Wiring: Use a small flat-head screwdriver to secure your 18-gauge valve wires to the numbered terminals on the module. Mixing Modules: You can mix the ESPSM3 (3-station) with the ESPSM6 (6-station) in the same ESP-Me controller to reach your desired zone count (up to 22 stations total). Troubleshooting: If the controller doesn't recognize the stations, ensure the module is seated firmly in the bay and that the locking lever (if applicable to your model) is engaged. Common Uses/Applications: Landscape Expansion: Perfect for when you add a new garden bed or backyard feature that requires its own watering schedule. System Customization: Allows for the separation of lawn and drip zones to improve water efficiency. Repairs: Can be used to replace a damaged 3-station module in an existing modular system. Common Questions: Q: Can I use this in an ESP-TM2 controller? A: No. The ESP-TM2 series has fixed stations and is not modular. This module is only for "ESP-Me" or "ESP-Modular" style cabinets. Q: Is there a 6-station version? A: Yes, the ESPSM6 is available if you need to add more zones at once, though it is primarily compatible with the newer ESP-Me and ESP-ME3 models. Q: Does it matter which slot I put it in? A: No. Rain Bird modular controllers are designed to read the modules in any order, though most users fill them from left to right for easier wire organization. The Rain Bird ESPSM3 is the fastest and most cost-effective way to grow your irrigation system alongside your landscape.
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