



Craig & Derricott SDP253N I-Switch Moulded Triple Pole+Switched Neutral Enclosed Rotary Isolator Switch 25A 415V
SDP253N
I-Switch Enclosed Rotary Isolator – 25A 415V, Triple Pole + Switched Neutral, IP66 Rated
This 25A I-Switch rotary isolator features a triple pole + switched neutral configuration, making it ideal for full disconnection of three-phase systems including the neutral conductor. Housed in a durable moulded PC/ABS enclosure and sealed to IP66, it’s suitable for both indoor and outdoor industrial applications. The unit includes key safety features such as a padlockable OFF position and captive stainless steel cover screws, ensuring both ease of use and compliance with lockout/tagout procedures.
- Triple Pole + Switched Neutral: Provides full 4-pole disconnection, ideal for systems requiring isolation of all conductors, including neutral.
- IP66 Rated Enclosure: Sealed against dust and powerful water jets for reliable operation in harsh environments.
- Padlockable Safety Feature: Prevents removal of the enclosure cover when the device is padlocked in the OFF position—enhancing safety during maintenance.
- Robust Construction: PC/ABS housing with stainless steel captive screws offers excellent mechanical strength and corrosion resistance.
- Flexible Cable Entry: 2 x M20/25 knockouts on top and bottom faces for easy and adaptable wiring.
- Expandable Design: Accepts auxiliary contact blocks and additional neutral assemblies for system versatility.
Technical Specification
- Current Rating: 25A
- Voltage Rating: 415V AC
- Poles: 3P + Switched Neutral
- Material: PC/ABS moulded enclosure
- Ingress Protection: IP66
- Cable Entries: 2 x M20/25 knockouts (top and bottom)
- Fixings: Outside sealed cavity
- Earthing: Earth terminals included in base
- Accessory Compatibility: Supports add-on auxiliary blocks and neutral assemblies
✅ Choose this 25A triple pole + switched neutral I-Switch isolator for safe, weatherproof, and fully compliant isolation in demanding electrical installations!
Range | i-Switch |
Product | Rotary Isolator Switches |
Ingress Protection | IP65 |
Voltage | 415 V |
Pole Configuration | Triple Pole (3P) |
Current Rating | 25A |
Standards | IEC/BS EN 60947-3 |
Number Of Poles | Triple Pole (3P) |
Voltage Rating | 690 V |
Rated Current | 25 A |
Rated Short Circuit Withstand Current | 500A at 1sec kA |
Switched | Y |
C/w Fuses | Y |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.