Castell FS Switchgear Interlock

Out of Stock

Item Code: CL1019

Castell FS Switchgear Interlock

Out of Stock

Item Code: CL1019


The FS and Q Interlocks are designed for use as a mechanical interlock for electrical switchgear. This is done through a mechanical connection to the isolation equipment. The standard unit is fitted with a 9.5mm square x 22mm spigot that can be used to operate an isolator. Inserting and turning the key moves the spigot through a predetermined angular position (45°/65°/90° clock or anti clock wise) moving the isolator to closed. Rotating the key in the opposite direction will open the isolator and will release the key. The free key can then be transferred to operate a parallel supply stream or an access interlock. The FS and Q locks are manufactured in brass or stainless steel making it ideal for harsh or corrosive environments.


We understand that purchasing product online can be difficult as you're unable to touch, feel or try on items you wish to purchase. Therefore we offer a flexible returns policy, where if you're not happy with any product you have purchased, you can exchange or return the product for a full refund within 14 days of invoice provided it meets our returns criteria.

Click here to learn more


Click & Collect - You will be notified when ready to collect

  • Albany: Corner of Bush Road & William Pickering Drive, Rosedale 0632
  • Pukekohe: 27 Nelson Street, Pukekohe 2120

**All Orders Ship Freight Free Over $200**

Shipping Rates (Excl. GST)


Standard: $6.95

Rural: $9.00

North Island

Standard: $8.00

Rural: $10.43

South Island

Standard: $10.00

Rural: $14.90


Contact for quote


Contact for quote

*Exclusions include Express Courier Services, Oversized, Drop Ship, Custom and Special-Order products.

Orders are processed Mon-Fri, excluding public holidays and are usually dispatched within 48 hours of order placement. For further information and to view our full shipping policy click here.