What does SPN and TPN mean on a distribution board?

SPN is Single Phase and Neutral - a domestic board fed from one phase. TPN is Three Phase and Neutral, used where the load is larger or three-phase equipment is present. TPN boards distribute single-phase circuits across the three phases to balance the load.

Which IP rating do I need?

IP20 is fine for a clean indoor electrical room. IP43 suits normal indoor locations where dust and dripping water are possible. IP65 is for outdoor, washdown or dusty industrial environments - it is dust-tight and resists water jets.

What is a phase-segregated distribution board?

One where each phase is physically separated into its own compartment. It prevents a fault on one phase affecting the others and allows work on one phase while the others stay live - normally specified in hospitals, data centres and continuous-process plants.

Distribution Boards

Enclosures that house the protection devices and distribute circuits safely. The range covers single-phase consumer units through three-phase and phase-segregated boards up to MCCB-incomer verticals, in IP20 through IP65, with single, metal double and acrylic doors. Siemens Betagard 8GB32 and Hager novello+ and aptis+, all type tested to IEC 61439.

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Brands we supply for distribution boards

Siemens
Germany
Global switchgear engineering, from a 6 A domestic MCB to arc-fault detection.
Hager
Germany
The only line in the portfolio that runs unbroken from a 6 A MCB to a 4000 A air circuit breaker.

Range

A representative selection. Our full range in this category runs to considerably more line items - if you need something not shown here, ask and we will check the current price list.

Siemens Betagard 8GB32 SPN distribution board

8GB32101RC06 / 8GB32102RC06 / 8GB32103RC06

Single phase and neutral boards from 6 to 16 modules, in single door IP20 and metal or acrylic double door IP43. Fitted with insulated shorting links, shrouded neutral links and door earthing; the enclosure goes through a seven-tank process before powder coating, and a cement masking sheet protects it on site.

Specifications for Siemens Betagard 8GB32 SPN distribution board
Ways	6, 8, 10, 12, 14, 16 module
Protection	IP20 single door, IP43 double door
Doors	Single, metal double, acrylic double, flat
Incoming slots	2 MW

IEC 61439

List price from ₹4,025 per piece (MRP, incl. GST, price list of 1 July 2026)

See all 18 list prices in this range

View on the Siemens website

Specification from the manufacturer price list effective 1 July 2026. Confirm current details when ordering.

Siemens Betagard 8GB32 TPN and phase-segregated boards

8GB32201RC04 / 8GB32001RC04 / 8GB32012RC06

Three phase and neutral boards from 4 to 16 way, plus phase-segregated versions where each phase sits in its own compartment. TPN boards convert to a phase-per-incomer configuration using a conversion kit rather than a different board.

Specifications for Siemens Betagard 8GB32 TPN and phase-segregated boards
Ways	4–16 way TPN; 4, 6, 8, 12 way phase segregated
Protection	IP20 and IP43
Incomer options	MCB, or MCCB up to 160 A on phase-segregated
Conversion	TPN to PPI conversion kits available

IEC 61439

List price from ₹10,410 per piece (MRP, incl. GST, price list of 1 July 2026)

See all 32 list prices in this range

View on the Siemens website

Specification from the manufacturer price list effective 1 July 2026. Confirm current details when ordering.

Hager aptis+ distribution boards

VYS04DN / VYT04DHN / VYV04DLN

Hager's redesigned residential range. A reversible door opens through 180°, the neutral terminal is shrouded to IP2X, and the enclosure has cement spill protection and anti-wall-insertion marking - small details that matter when a board is fitted during construction rather than after it.

Specifications for Hager aptis+ distribution boards
Ways	SPN 4, 6, 8, 12, 16, 18 modules; TPN/vertical TPN 4, 6, 8, 12, 16 ways
Protection	IP43 double door
Busbar	100 A tin-plated copper (SPN); 200 A copper (vertical TPN)
Material	CRCA sheet steel, RAL 9016
Impact	IK09

IS/IEC 61439

List price from ₹890 per piece (MRP, incl. GST, price list of 1 September 2026)

See all 57 list prices in this range

View on the Hager website

Specification from the manufacturer price list effective 1 September 2026. Confirm current details when ordering.

Hager novello+ SPN and TPN distribution boards

VYS06C / VYS04D / VYT04CH / VYT16DH

SPN and TPN enclosures for residential and commercial distribution. Supplied with insulated busbars, IP2X neutral bars, an earth bar, blanking plates, cable management and circuit identification labels.

Specifications for Hager novello+ SPN and TPN distribution boards
SPN capacity	6, 8, 12, 16, 18 modules single door; 4, 6, 8, 12, 16, 18 double door
TPN capacity	4, 6, 8, 12 way single door; 4, 6, 8, 12, 16 way double door
Protection	IP30 single door; IP43 double door
Impact resistance	IK09

IS 8623-III

List price from ₹2,283 per piece (MRP, incl. GST, price list of 1 September 2026)

See all 24 list prices in this range

Specification from the manufacturer price list effective 1 September 2026. Confirm current details when ordering.

Hager vector IP65 enclosures

VE103L / VE318L

Hager vector IP65 enclosure with transparent door

Surface-mounted double door enclosures rated IP65 - dust-tight and protected against water jets - for outdoor, washdown and dusty industrial locations. Incomer and outgoing devices are mounted as needed rather than to a fixed layout.

Specifications for Hager vector IP65 enclosures
Capacity	3 to 54 modules
Protection	IP65
Mounting	Surface

List price from ₹4,484 per piece (MRP, incl. GST, price list of 1 September 2026)

See all 10 list prices in this range

View on the Hager website

Specification from the manufacturer price list effective 1 September 2026. Confirm current details when ordering.

Common questions

What does SPN and TPN mean on a distribution board?: SPN is Single Phase and Neutral - a domestic board fed from one phase. TPN is Three Phase and Neutral, used where the load is larger or three-phase equipment is present. TPN boards distribute single-phase circuits across the three phases to balance the load.
Which IP rating do I need?: IP20 is fine for a clean indoor electrical room. IP43 suits normal indoor locations where dust and dripping water are possible. IP65 is for outdoor, washdown or dusty industrial environments - it is dust-tight and resists water jets.
What is a phase-segregated distribution board?: One where each phase is physically separated into its own compartment. It prevents a fault on one phase affecting the others and allows work on one phase while the others stay live - normally specified in hospitals, data centres and continuous-process plants.

Guides

Which IP rating do you need for an enclosure?