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CTI

CTI 20 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB20 S2

CTI 20 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB20 S2

£4.95

  • Item Condition:Used
  • SKU:13471
CTI 25 AMP 30mA DOUBLE POLE RCD TYPE AC ZR25 SQ

CTI 25 AMP 30mA DOUBLE POLE RCD TYPE AC ZR25 SQ

£15.95

  • Item Condition:New
  • SKU:13502
CTI 32 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO32

CTI 32 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO32

£23.95

  • Item Condition:New
  • SKU:13508
CTI 32 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO32

CTI 32 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO32

£27.95

  • Item Condition:New
  • SKU:13509
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32

£5.95

  • Item Condition:New
  • SKU:13443
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32

£4.95

  • Item Condition:Used
  • SKU:13455
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S1

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S1

£4.95

  • Item Condition:Used
  • SKU:13464
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S2

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S2

£4.95

  • Item Condition:Used
  • SKU:13472
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S3

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S3

£4.95

  • Item Condition:Used
  • SKU:2023
CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S4

CTI 32 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB32 S4

£4.95

  • Item Condition:Used
  • SKU:13487
CTI 40 AMP 30mA DOUBLE POLE RCD TYPE AC ZR40

CTI 40 AMP 30mA DOUBLE POLE RCD TYPE AC ZR40

£15.95

  • Item Condition:Used
  • SKU:9164
CTI 40 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO40

CTI 40 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO40

£24.95

  • Item Condition:New
  • SKU:13512
CTI 40 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO40

CTI 40 AMP CURVE B 6kA 30mA RCBO TYPE AC ZCBO40

£24.95

  • Item Condition:New
  • SKU:13513
CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40

CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40

£4.95

  • Item Condition:Used
  • SKU:13456
CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S1

CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S1

£4.95

  • Item Condition:Used
  • SKU:13465
CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S2

CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S2

£4.95

  • Item Condition:Used
  • SKU:3295
CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S3

CTI 40 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB40 S3

£4.95

  • Item Condition:Used
  • SKU:13480
CTI 45 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB45 S2

CTI 45 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB45 S2

£6.99

  • Item Condition:Used
  • SKU:13473
CTI 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB50

CTI 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB50

£4.95

  • Item Condition:Used
  • SKU:13457
CTI 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB50 S1

CTI 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER ZB50 S1

£4.95

  • Item Condition:Used
  • SKU:13466
Displaying 21 to 40 (of 56 products)
CTI
Keep your specialized distribution boards, commercial installations, and domestic consumer units running safely with our immediately available stock of genuine CTI circuit protection components. As dedicated UK electrical supply experts, we specialize in sourcing both current and rare or obsolete modules, allowing you to find the exact replacements you need without facing costly panel retrofits.
Our online CTI catalog is updated regularly and designed to accommodate a diverse range of configurations, including:
  • CTI MCBs: High-quality miniature circuit breakers available across the standard ZB and ZC series, tracking single-pole layouts across specific modification suffixes (including S1, S2, S3, and S4 lines) from 6A up to 63A.
  • CTI RCBOs & RCDs: Comprehensive single-module RCBOs from the ZCBO range alongside robust double-pole RCD modules (including the ZR and ZR SQ lines) up to 80 Amp engineered for focused earth-leakage defense.
  • CTI Main Switches: Robust 100 Amp double-pole main switch disconnectors from the ZMA series designed to ensure complete, secure incoming system isolation.
  • Advanced Circuit Safety: Reliable fault tracking, standard residential breaking capacity parameters (6kA ratings), and popular domestic tripping profiles (Curves B and C) paired with Type AC protection profiles engineered for robust electrical safety.
Why Choose Circuit Breaker Specialists?
  • Free UK Delivery: Enjoy cost-free shipping automatically applied on every single order.
  • Same Working Day Dispatch: Complete your online checkout before 3PM, and we dispatch your package today.
  • Next Working Day Shipping: Urgent delivery options available at checkout to minimize system downtime during critical faults.
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