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SIEMENS

SIEMENS 5.5-8 AMP MOTOR PROTECTION CIRCUIT BREAKER 3RV2011-1HA25
SIEMENS 50 AMP 35kA TRIPLE POLE MCCB 3VF3111-1FL41-0AA0 3VF3
SIEMENS 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER 5SX21 5SX2

SIEMENS 50 AMP CURVE B 6kA MCB CIRCUIT BREAKER 5SX21 5SX2

£59.95

  • Item Condition:Used
  • SKU:8277
SIEMENS 6 AMP AUXILIARY CONTACT 5SX9100 HS

SIEMENS 6 AMP AUXILIARY CONTACT 5SX9100 HS

£9.95

  • Item Condition:Used
  • SKU:8291
SIEMENS 6 AMP CURVE B 6kA MCB CIRCUIT BREAKER 5SY61 5SY6106-6
SIEMENS 6 AMP CURVE B 6kA MCB CIRCUIT BREAKER 5SY6106-6 5SY61
SIEMENS 6 AMP CURVE B 6kA TRIPLE POLE MCB CIRCUIT BREAKER 5SX23 5SX2
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Siemens
Keep your specialised distribution boards, commercial installations, and complex industrial networks running safely with our immediately available stock of genuine Siemens circuit protection components. As dedicated UK electrical supply experts, we specialise 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 Siemens catalog is updated regularly and designed to accommodate a diverse range of configurations, including:
  • Siemens MCBs: High-quality miniature circuit breakers tracking single-pole, double-pole, and triple-pole layouts across premium modern lines and legacy families—featuring the 5SX1, 5SX2, 5SX4, 5SY4, 5SY6, 5SP4, and classic 5SN1 hardware series scaling from fractional 0.3A up to high-capacity 125A profiles.
  • Siemens RCBOs & RCDs: Comprehensive earth-leakage devices featuring double-pole standalone RCBO options across the 5SU1, 5SU3, and 5SU9 product groups paired with double-pole and four-pole high-sensitivity RCCB blocks (such as the 5SM1, 5SM3, and 5SV3 ranges) scaling up to 80 Amp benchmarks.
  • Siemens MCCBs & Industrial Switchgear: High-capacity moulded case circuit breakers built for complex commercial engineering, featuring premium multi-pole 3VF, 3VT, 3VA1, and heavy-duty VL collections (including the VL160 and VL250 frameworks) tracking industrial limits up to 400 Amp.
  • Siemens Control Gear & Automation Components: Industrial-grade panel processing and motor management hardware, featuring SIRIUS 3RT contactors, 3RV motor protection circuit breakers, 3UA and 3RU overload relays, 3RP timing devices, 5TT contactors, and advanced Sinamics control units.
  • Main Switches & Wiring Accessories: Robust panel switch disconnectors up to 100A (featuring the 5TE7, 5TE8, and 5TL1 lines), traditional physical cartridge fuse holder carriers, matching long terminal covers, and continuous-duty voltage conversion modules.
  • Advanced Circuit Safety: Reliable fault tracking across varied breaking capacity benchmarks (from standard 3kA, 6kA, 10kA, up to industrial 25kA, 35kA, 40kA, and heavy-duty 70kA short-circuit parameters) and distinct tripping characteristics (Curves B, C, D, and legacy Type 3 or Curve G settings).
Why Choose Circuit Breaker Specialists?
  • Free UK Delivery: Enjoy cost-free shipping automatically applied on every single order across our entire catalog.
  • 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 minimise system downtime during critical faults.