Dolphin 120W Weekly Timer Power Supply (Maytronics 99956035US-ASSY)
- Genuine Maytronics 120W Weekly Timer Power Supply (Part #99956035US-ASSY)
- Built-in 3-mode Weekly Scheduler (Every Day, Every 2nd Day, Every 3rd Day)
- Fits Quantum, Cayman, S200, Nautilus CC, Explorer E20/E30, Triton PS & Active 15/20/30
- Also fits Proteus DX3/DX4, Advantage/Ultra, T25/T35/T45, S100/S300 & Discovery
- Direct factory plug-and-play replacement with caddy-mount clip
or 4 interest-free payments of $82.25 with
Make storage easier:
Dolphin Universal Caddy
$145
Why pool owners add the Universal Caddy
- Effortless Roll-to-Pool Transport – Wheel your Dolphin smoothly from patio or garage to poolside without heavy lifting
- Protects Scrubbing Brushes – Cradles the cleaner off the ground so active brushes never develop flat spots in storage
- Integrated Power Supply Mount – Locks your power supply upright off wet decks and neatly coils up to 60 ft of swivel cable
- Genuine Maytronics Fit – Engineered specifically by Maytronics to cradle residential Dolphin robotic pool cleaners
Dolphin Premium Caddy Cover
$99
Why add the Premium Caddy Cover
- All-Season UV & Rain Shield – Heavy-duty woven polyester protects plastics, tracks, and cables from harsh sun and storms
- Shields Power Supply Electronics – Keeps your caddy-mounted power supply dry, shaded, and free of dust and pollen
- Ventilated, Wind-Secure Fit – Built-in side vents prevent trapped humidity while bottom velcro straps hold firm in high winds
- Roll Without Removing – Integrated top handle slot lets you wheel your covered caddy straight into storage
*Rates from 0% APR. Subject to eligibility check. See payment terms.
Genuine 120W Weekly-Timer Power Supply for 25+ Residential Dolphins
3-Setting Weekly Timer
One button toggles LEDs between Daily (1), Every Other Day (2), or Every 3rd Day (3) automatic runs.
Fits 25+ Dolphin Models
Covers Cayman, Quantum, S100/S200/S300, Active 15/20/30, Explorer E20/E30, Nautilus CC, Triton PS & Proteus DX3/DX4.
Regulated 120W DC Output
Official Maytronics electronics protect brushless pump and drive motors.
Splash-Resistant Housing
Sealed top membrane keypad resists damp poolside fingers and outdoor humidity.
Clicks Onto Universal Caddy
Rear slot locks securely into the Dolphin Universal Caddy upright bracket.
Certified Maytronics OEM
Exact factory part #99956035US-ASSY—zero wiring adapters or guesswork.
Confirmed Compatible Dolphin Models (120W Weekly Timer)
- ProLine & Max-Series: Quantum, Cayman, Escape (Timer)
- Nautilus, Explorer & Triton: Nautilus CC, Explorer E20, Explorer E30, Triton PS, Triton PS Plus, Mercury
- S, Active & T Series: S100, S200, S300, S300i, Active 15, Active 20, Active 30, Active 30i, T25, T35, T45, T55i
- Advantage & Proteus: Advantage, Advantage Ultra, Proteus DX3, Proteus DX4, Proteus DX5i, Discovery, Saturn, Premium
Need Wi-Fi app control on Explorer E30 Wi-Fi, E50, S300/S400, Active 30/40, or Triton PS Plus? Choose the Wi-Fi version (99956085-ASSYV4) instead!
Power Supply 99956035US (120W Timer) Specs
Power Supply 99956035US (120W Timer) FAQ
Does 99956035US-ASSY have Wi-Fi or Bluetooth?
No—99956035US-ASSY has the physical 3-setting Weekly Timer on the faceplate (no Wi-Fi). If your model uses the myDolphin™ Plus Wi-Fi app on a 120W supply, order 99956085-ASSYV4.
Can I use this to add a Weekly Timer to my Explorer E20 or E30?
Yes! Because Explorer E20 and E30 share the 120W S-Series architecture, 99956035US-ASSY adds physical Weekly Timer scheduling.
We’re Here Long After Delivery Day
Genuine Maytronics OEM Warranty
Manufacturer-backed protection and help from authorized US service centers.
30-Day Returns
If it isn’t right for your pool, start a return within 30 days.
Fast, Free Shipping
Your cleaner ships fast and free on qualifying orders, ready for its first run.
Let the robot clean the pool. Let ICO watch the water.
ICO tests your water every hour and tells you exactly what to add—before cloudy water or algae ruins the weekend.
- Measures pH, ORP, and water temperature every hour
- Exact chemical amounts in the free iOS & Android app
- Warns you before heat or rain knocks the water out of balance
- Versions for chlorine/bromine and salt water pools (salt also tracks TDS)
ICO - The Smart Pool Water Monitor
Hourly water readings and exact dosing help—without another subscription.
Which type of pool do you have?
Complete Your Setup
Make poolside transport effortless and shield your cleaner and power supply between cycles.
*Rates from 0% APR or 10–36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.