Spa Electrics WN903 Plug Seal Kit – PIN Terminals & Glands for WN / WNRX / WN9RX Pool Lights

The Spa Electrics WN903 Plug Seal Kit is a complete connection and sealing kit for Spa Electrics WN, WNRX, and WN9RX series LED pool lights. It contains everything needed to correctly terminate and seal the cable connection at the plug top, ensuring a watertight, corrosion-resistant connection for lasting reliability.

Kit Contents

• WN9 plug top body (black, with red base)
• PIN terminals (2 × silver crimp terminals)
• Colour-coded cable glands (green, blue, grey, white) — select the correct gland for your cable diameter
• Spa Electrics lanolin (moisture and corrosion protection)

Cable Gland Colour Guide

Select the gland colour that matches your cable diameter:

• Green — cable diameter 4.8mm–5.8mm
• Blue — cable diameter 5.9mm–6.5mm
• Grey — cable diameter 6.6mm–7.3mm
• White — cable diameter 7.4mm–8.0mm
• Red — cable diameter 9.0mm–9.8mm

Gland colour codes are consistent across all Spa Electrics products — the same colour represents the same cable diameter range regardless of the light model.

Product Details

• Brand: Spa Electrics
• Part number / SKU: WN903
• Barcode: SLY-301-91031
• Compatible with: Spa Electrics WN, WNRX, WN9RX series LED pool lights
• Genuine Spa Electrics spare part

Frequently Asked Questions

When do I need to replace the plug seal kit?

Replace the plug seal kit when re-cabling a WN, WNRX, or WN9RX series pool light, when the existing plug top is cracked or damaged, when the cable gland seal is deteriorated or leaking, or when corrosion is visible at the pin terminals. Using a fresh kit ensures a watertight seal and reliable electrical connection after any cable work.

How do I choose the right cable gland?

Measure the outside diameter of your pool light cable, then select the gland colour that matches that diameter range from the guide above. Using the wrong gland size will result in a poor seal — too small and the cable won’t fit; too large and the gland won’t compress correctly around the cable. The kit includes multiple gland colours so you can select the correct one on site.

Is this kit compatible with other Spa Electrics models?

The WN903 kit is designed for the WN, WNRX, and WN9RX series. Other Spa Electrics series (such as GK, EMRX, or ORB) use different plug tops and may require a different kit. Check your light’s model number before ordering, or contact us if you are unsure.