WYLEX PSB Series

WYLEX PSB Series

WYLEX PSB Series MCBs, RCBOs & associated RCDs.

Current range of WYLEX BSEN60898 MCBs for commercial use (NH boards). Fits onto TPN busbar fixed teeth.

Common in many commercial distribution board setups, differ from WYLEX NHX MCBs in that they do not have the cutout around the front screw onto the busbar.

Do not use or attempt to force NHX breakers onto the NH Type A or Type B boards. The cutout around the front screw can allow the busbar teeth to arc out across the gap under certain circumstances. Due to these issues we recommend that ONLY WYLEX PSB series MCBs or RCBOs are ever fitted to WYLEX NH boards.

PSB series circuit breakers are 10000A breaking current (10kA) and the range is as follows:

  • 60898 Type B MCB 1P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 60898 Type C MCB 1P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 60898 Type D MCB 1P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 60898 Type B MCB 3P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 60898 Type C MCB 3P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 60898 Type D MCB 3P = 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • 61009 Type B RCBO 1P = 6A, 10A, 16A, 20A, 32A, 40A, 50A
  • 61009 Type C RCBO 1P = 6A, 10A, 16A, 20A, 32A, 40A, 50A
Wylex NHX MCB Sizes + alternatives
Wylex NHX MCB Sizes + alternatives

PSB Type B 1P MCB Specifications

Breaking Capacity According to BS EN 60898 & IEC 60898: 10kA (10000A)

Rated Voltage: 230V / 400V AC

Maximum Operating Temp: 55 degrees C

Part Numbers:

  • PSB06-B – 6A Type B 1P MCB
  • PSB10-B – 10A Type B 1P MCB
  • PSB16-B – 16A Type B 1P MCB
  • PSB20-B – 20A Type B 1P MCB
  • PSB25-B – 25A Type B 1P MCB
  • PSB32-B – 32A Type B 1P MCB
  • PSB40-B – 40A Type B 1P MCB
  • PSB50-B – 50A Type B 1P MCB
  • PSB63-B – 63A Type B 1P MCB

PSB Type C 1P MCB Specifications

Breaking Capacity According to BS EN 60898 & IEC 60898: 10kA (10000A)

Rated Voltage: 230V / 400V AC

Maximum Operating Temp: 55 degrees C

Part Numbers:

  • PSB06-C – 6A Type C 1P MCB
  • PSB10-C – 10A Type C 1P MCB
  • PSB16-C – 16A Type C 1P MCB
  • PSB20-C – 20A Type C 1P MCB
  • PSB25-C – 25A Type C 1P MCB
  • PSB32-C – 32A Type C 1P MCB
  • PSB40-C – 40A Type C 1P MCB
  • PSB50-C – 50A Type C 1P MCB
  • PSB63-C – 63A Type C 1P MCB

PSB Type D 1P MCB Specifications

Breaking Capacity According to BS EN 60898 & IEC 60898: 10kA (10000A)

Rated Voltage: 230V / 400V AC

Maximum Operating Temp: 55 degrees C

Part Numbers:

  • PSB06-D – 6A Type D 1P MCB
  • PSB10-D – 10A Type D 1P MCB
  • PSB16-D – 16A Type D 1P MCB
  • PSB20-D – 20A Type D 1P MCB
  • PSB25-D – 25A Type D 1P MCB
  • PSB32-D – 32A Type D 1P MCB
  • PSB40-D – 40A Type D 1P MCB
  • PSB50-D – 50A Type D 1P MCB
  • PSB63-D – 63A Type D 1P MCB

PSB MCB Dimensions (Type B, C & D 1P)

Both B, C & D type Wylex PSB MCBs share the same dimensions as each other.

All MCBs & RCBOs share the same single module (1P) width

The height (top to bottom) is: 89mm

WYLEX NHX SERIES MCB LENGTH DIMENSIONS SIZE
WYLEX PSB SERIES MCB LENGTH

The ‘Depth’ which is the total front-to-back measurement (furthest point above shoulder of din rail connection): 70mm

WYLEX NHX SERIES MCB "DEPTH" (FRONT TO BACK) DIMENSIONS SIZE
WYLEX PSB SERIES MCB “DEPTH” (FRONT TO BACK)

The depth of the busbar connection from the front face of lower part of MCB: approx 29~30mm

Busbar connection is by cage clamp to front.

Note clamp leaves gap at back, beware that busbar tooth is correctly located in MCB and not behind the cage clamp during assembly/re-assembly

WYLEX NHX SERIES MCB "BUSBAR CONNECTION" DIMENSIONS SIZE
WYLEX PSB SERIES MCB “BUSBAR CONNECTION”

PSBS Type B RCBO Specifications

WYLEX PSB PSBS RCBO MCB
WYLEX PSBS RCBO

Breaking Capacity According to BS EN 61009 & IEC 61009: 10kA (10000A)

Rated Voltage: 230V / 400V AC

Maximum Operating Temp: 55 degrees C

Part Numbers:

  • PSBS6-B/1 – 6A Type B 61009 RCBO
  • PSBS10-B/1 – 10A Type B 61009 RCBO
  • PSBS16-B/1 – 16A Type B 61009 RCBO
  • PSBS20-B/1 – 20A Type B 61009 RCBO
  • PSBS32-B/1 – 32A Type B 61009 RCBO
  • PSBS40-B/1 – 40A Type B 61009 RCBO
  • PSBS50-B/1 – 50A Type B 61009 RCBO

PSBS Type C RCBO Specifications

Breaking Capacity According to BS EN 61009 & IEC 61009: 10kA (10000A)

Rated Voltage: 230V / 400V AC

Maximum Operating Temp: 55 degrees C

Part Numbers:

  • PSBS6-C/1 – 6A Type B 61009 RCBO
  • PSBS10-C/1 – 10A Type B 61009 RCBO
  • PSBS16-C/1 – 16A Type B 61009 RCBO
  • PSBS20-C/1 – 20A Type B 61009 RCBO
  • PSBS32-C/1 – 32A Type B 61009 RCBO
  • PSBS40-C/1 – 40A Type B 61009 RCBO
  • PSBS50-C/1 – 50A Type B 61009 RCBO

Alternative Fitments?

The WYLEX PSB series of circuit breakers & RCBOs use the same toothed busbar and share a similar busbar connection layout as the following:

NB: WYLEX NSB or NHX MCBs are NOT a swap for WYLEX PSB MCBs despite the similarities. DO NOT FIT NHX or NSB MCBs to a TPN board

WYLEX Manufacturer Site: WYLEXs manufacturer page

BUY NHX MCBs & RCBOs at the following link: Screwfix WYLEX MCBs