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SIEMENS

SIEMENS 0.5 AMP CURVE G MCB CIRCUIT BREAKER 5SN1

SIEMENS 0.5 AMP CURVE G MCB CIRCUIT BREAKER 5SN1

£7.95

  • Item Condition:Used
  • SKU:12005
SIEMENS 0.7 - 1 AMP OVERLOAD RELAY 3RU1116-0JB0

SIEMENS 0.7 - 1 AMP OVERLOAD RELAY 3RU1116-0JB0

£19.99

  • Item Condition:Used
  • SKU:12045
SIEMENS 10 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX1

SIEMENS 10 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX1

£10.00

  • Item Condition:Used
  • SKU:12008
SIEMENS 10 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

SIEMENS 10 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

£5.95

  • Item Condition:Used
  • SKU:12000
SIEMENS 10 AMP TYPE G MCB CIRCUIT BREAKER 5SN1

SIEMENS 10 AMP TYPE G MCB CIRCUIT BREAKER 5SN1

£5.95

  • Item Condition:Used
  • SKU:8289
SIEMENS 100 MCCB 25kA

SIEMENS 100 MCCB 25kA

£59.99

  • Item Condition:Used
  • SKU:1380
SIEMENS 125 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX61

SIEMENS 125 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX61

£44.95

  • Item Condition:Used
  • SKU:11997
SIEMENS 15 AMP FUSE HOLDER CARRIER 3NW3 502-3A

SIEMENS 15 AMP FUSE HOLDER CARRIER 3NW3 502-3A

£9.99

  • Item Condition:Used
  • SKU:4028
SIEMENS 16 AMP 40kA MCCB 3VF31 3VF3116-1VC41-0AA0

SIEMENS 16 AMP 40kA MCCB 3VF31 3VF3116-1VC41-0AA0

£56.98

  • Item Condition:Used
  • SKU:9880
SIEMENS 16 AMP 6kA MCB CIRCUIT BREAKER 5SN1 NL16A

SIEMENS 16 AMP 6kA MCB CIRCUIT BREAKER 5SN1 NL16A

£9.95

  • Item Condition:Used
  • SKU:12003
SIEMENS 16 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX21

SIEMENS 16 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX21

£14.85

  • Item Condition:Used
  • SKU:6767
SIEMENS 16 AMP CURVE G MCB CIRCUIT BREAKER 5SN1 N

SIEMENS 16 AMP CURVE G MCB CIRCUIT BREAKER 5SN1 N

£9.95

  • Item Condition:Used
  • SKU:12004
SIEMENS 16 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

SIEMENS 16 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

£19.99

  • Item Condition:Used
  • SKU:52
SIEMENS 16 MCCB

SIEMENS 16 MCCB

£49.99

  • Item Condition:Used
  • SKU:14924
SIEMENS 160 AMP 55kA TRIPLE POLE MCCB VL160

SIEMENS 160 AMP 55kA TRIPLE POLE MCCB VL160

£99.98

  • Item Condition:Used
  • SKU:10090
SIEMENS 2 AMP CURVE G 3kA MCB CIRCUIT BREAKER 5SQ11

SIEMENS 2 AMP CURVE G 3kA MCB CIRCUIT BREAKER 5SQ11

£10.95

  • Item Condition:Used
  • SKU:1608
SIEMENS 2 AMP CURVE G MCB CIRCUIT BREAKER WN

SIEMENS 2 AMP CURVE G MCB CIRCUIT BREAKER WN

£9.98

  • Item Condition:Used
  • SKU:51
SIEMENS 25 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX1

SIEMENS 25 AMP CURVE C 6kA MCB CIRCUIT BREAKER 5SX1

£10.00

  • Item Condition:Used
  • SKU:12009
SIEMENS 25 AMP CURVE G 3kA MCB CIRCUIT BREAKER 5SQ11

SIEMENS 25 AMP CURVE G 3kA MCB CIRCUIT BREAKER 5SQ11

£19.95

  • Item Condition:Used
  • SKU:12006
SIEMENS 25 MCCB 25kA

SIEMENS 25 MCCB 25kA

£29.99

  • Item Condition:Used
  • SKU:14925
SIEMENS 250 AMP 35kA TRIPLE POLE MCCB NON AUTO 3VF4

SIEMENS 250 AMP 35kA TRIPLE POLE MCCB NON AUTO 3VF4

£166.75

  • Item Condition:Used
  • SKU:9883
SIEMENS 3.5 - 5 AMP OVERLOAD RELAY 3RU1116-1FB0

SIEMENS 3.5 - 5 AMP OVERLOAD RELAY 3RU1116-1FB0

£34.99

  • Item Condition:New
  • SKU:11955
SIEMENS 32 AMP CURVE B 6kA 30mA DOUBLE POLE RCBO 5SU3

SIEMENS 32 AMP CURVE B 6kA 30mA DOUBLE POLE RCBO 5SU3

£27.43

  • Item Condition:Used
  • SKU:12053
SIEMENS 32 AMP CURVE B 6kA 30mA DOUBLE POLE RCBO 5SU3

SIEMENS 32 AMP CURVE B 6kA 30mA DOUBLE POLE RCBO 5SU3

£27.70

  • Item Condition:Used
  • SKU:12055
SIEMENS 32 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

SIEMENS 32 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

£24.95

  • Item Condition:Used
  • SKU:12001
SIEMENS 32 MCCB 40kA 3VF3116-1VG41-0AA0

SIEMENS 32 MCCB 40kA 3VF3116-1VG41-0AA0

£78.63

  • Item Condition:Used
  • SKU:1381
SIEMENS 36 AMP CONTACTOR 415V COIL 3TK44 16-0A

SIEMENS 36 AMP CONTACTOR 415V COIL 3TK44 16-0A

£19.99

  • Item Condition:Used
  • SKU:5141
SIEMENS 40 AMP 300mA DOUBLE POLE RCD RCCB 5SM1614-6

SIEMENS 40 AMP 300mA DOUBLE POLE RCD RCCB 5SM1614-6

£59.95

  • Item Condition:Used
  • SKU:7340
SIEMENS 40 AMP 30mA DOUBLE POLE RCD 5SZ3 241-3A

SIEMENS 40 AMP 30mA DOUBLE POLE RCD 5SZ3 241-3A

£29.99

  • Item Condition:Used
  • SKU:12067
SIEMENS 40 AMP 30mA FOUR POLE RCCB 5SM1344-0

SIEMENS 40 AMP 30mA FOUR POLE RCCB 5SM1344-0

£64.94

  • Item Condition:Used
  • SKU:9154
SIEMENS 40 AMP 30mA FOUR POLE RCD 5SZ3 440-5B

SIEMENS 40 AMP 30mA FOUR POLE RCD 5SZ3 440-5B

£89.98

  • Item Condition:Used
  • SKU:12072
SIEMENS 40 AMP MCCB

SIEMENS 40 AMP MCCB

£29.95

  • Item Condition:Used
  • SKU:10092
SIEMENS 5 AMP 6kA MCB CIRCUIT BREAKER 5SX1 NO6-U

SIEMENS 5 AMP 6kA MCB CIRCUIT BREAKER 5SX1 NO6-U

£10.00

  • Item Condition:Used
  • SKU:12010
SIEMENS 6 AMP 6kA MCB CIRCUIT BREAKER 5SN1 NL

SIEMENS 6 AMP 6kA MCB CIRCUIT BREAKER 5SN1 NL

£9.95

  • Item Condition:Used
  • SKU:12002
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 C 3kA MCB CIRCUIT BREAKER 5SQ21

SIEMENS 6 AMP CURVE C 3kA MCB CIRCUIT BREAKER 5SQ21

£9.99

  • Item Condition:Used
  • SKU:12007
SIEMENS 6 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

SIEMENS 6 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

£10.00

  • Item Condition:Used
  • SKU:11998
SIEMENS 63 AMP 40kA MCCB 3VF3116-1VN41-0AA0

SIEMENS 63 AMP 40kA MCCB 3VF3116-1VN41-0AA0

£39.95

  • Item Condition:Used
  • SKU:10930
SIEMENS 63 AMP CURVE C 3kA MCB CIRCUIT BREAKER 5SQ21

SIEMENS 63 AMP CURVE C 3kA MCB CIRCUIT BREAKER 5SQ21

£53.88

  • Item Condition:Used
  • SKU:2173
SIEMENS 8 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

SIEMENS 8 AMP TYPE 3 M6 MCB CIRCUIT BREAKER 5SN1

£16.84

  • Item Condition:Used
  • SKU:11999
SIEMENS 80 AMP 30mA DOUBLE POLE RCD 5SZ3 261-3A

SIEMENS 80 AMP 30mA DOUBLE POLE RCD 5SZ3 261-3A

£29.99

  • Item Condition:Used
  • SKU:12070
SIEMENS AUXILIARY CIRCUIT SWITCH 5ST3010 AS

SIEMENS AUXILIARY CIRCUIT SWITCH 5ST3010 AS

£8.95

  • Item Condition:Used
  • SKU:6771
SIEMENS AUXILIARY CIRCUIT SWITCH 5ST3013 AS

SIEMENS AUXILIARY CIRCUIT SWITCH 5ST3013 AS

£9.95

  • Item Condition:Used
  • SKU:12052
SIEMENS CONTROL RELAY 20E 2 NO + 2 NC 3TH3022-0AF0

SIEMENS CONTROL RELAY 20E 2 NO + 2 NC 3TH3022-0AF0

£18.95

  • Item Condition:New
  • SKU:2175
SIEMENS INTERFACE CONVERTER 3RS1703-1AD00

SIEMENS INTERFACE CONVERTER 3RS1703-1AD00

£99.99

  • Item Condition:New
  • SKU:11956
SIEMENS TERMINAL SUPPORT BRACKETS 3RB2913-0AA1

SIEMENS TERMINAL SUPPORT BRACKETS 3RB2913-0AA1

£9.95

  • Item Condition:New
  • SKU:1078
SIEMENS TERMINAL SUPPORT BRACKETS 3RB2923-0AA1

SIEMENS TERMINAL SUPPORT BRACKETS 3RB2923-0AA1

£9.95

  • Item Condition:New
  • SKU:1382
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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.
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