The UTMCU22 is the largest single-phase consumer unit in the UTMCU line-up, offering twenty-two usable ways inside a 467 mm wide steel cabinet. Built for industrial sub-panels and complex electrical layouts, it packs dense breaker capacity into a cold-rolled chassis finished in RAL9003 white. IP20 and IK05 ratings cover indoor dry environments, while pre-punched knockouts on every face keep cable routing straightforward even when the circuit count is at its maximum.

Specifications

Feature	Detail
Standard Compliance	BS EN 61439-3 (Consumer Unit), BS EN 60947-3 (Main Switch), BS EN 60898-1 (MCB)
Operating Voltage	230V AC, 50/60Hz
Rated Current	40A, 63A, 100A (depends on incoming device)
Protection Rating	IP20 (Indoor Use Only)
Impact Protection	IK05
Material	Cold-rolled steel sheet with white RAL9003 powder coat
Mounting	Wall-mounted (Flush or Surface compatible with optional kits)
Cable Entry	Top, Bottom, Sides, Rear – Multiple knockouts (20mm, 25mm, 32mm, 40mm)
Internal Layout	Raised DIN rail, extra space for RCBOs, flexible circuit configuration

Full Model Range – Choose Your Circuit Count

Model No.	Usable Ways	Width (mm)	Height (mm)	Depth (mm)	Best For
UTMCU4	4 ways	123	243	108	Small flats, sheds, garages
UTMCU5	5 ways	141	243	108	Studio apartments, small offices
UTMCU6	6 ways	158	243	108	1–2 bedroom homes
UTMCU8	8 ways	208	243	108	Standard 3-bedroom house
UTMCU10	10 ways	243	243	108	Larger homes, light commercial
UTMCU14	14 ways	315	243	108	Multi-unit dwellings, workshops
UTMCU18	18 ways	394	243	108	Commercial tenants, large properties
UTMCU22	22 ways	467	243	108	Industrial sub-panels, complex setups

Key Features – Built for Electricians, Trusted by Installers

CE Certified to EU/UK Standards

This enclosure has passed independent type-testing to BS EN 61439-3, BS EN 60947-3, and BS EN 60898-1. Installers can proceed knowing the unit satisfies the demands of BS 7671.

Heavy-Duty Steel Enclosure

Pressed from cold-rolled sheet steel and sealed beneath a RAL9003 white polyester skin. The IK05 impact classification shields the box from dents and scrapes on active construction sites.

Flexible Cable Entry

Pre-engineered holes span the roof, floor, left wall, right wall, and back panel:

• Roof & Floor: 20 mm, 25 mm, 32 mm

• Sidewalls: 32 mm plus 40 mm slots

• Back panel: Oversized trunking and conduit apertures

Cables can be introduced from any bearing without on-site drilling.

Spacious Interior Design

The 35 mm DIN rail is cantilevered above the base plate, carving out a deep wire gallery beneath. RCBOs seat cleanly even when the rail approaches full capacity.

Secure Magnetic Lid Closure

A potent magnet grips the hinged steel flap shut against vibration and knocks, yet yields to a light pull when the breaker needs resetting.

Modular Wiring Configurations

The 22-way platform supports four distinct protection philosophies:

• Main Switch layout - MCBs overseen by a central isolator • Dual RCD layout - twin 30 mA zones for economical compliance

• High Integrity layout - RCDs blended with selective RCBOs • RCD-only layout - sub-panel duty with no main switch Select the layout that matches the project scope.

Pre-Installed Ground & Neutral Bars

Solid-copper terminal rails are pre-mounted inside, carrying multiple clamp screws for immediate, regulation-compliant earthing and neutral splitting.

Clear Circuit Labeling Area

A detachable label sheet is affixed to the inner door face, allowing each way to be charted for rapid diagnostics during later maintenance calls.

Key Applications

Industrial sub-panels branching machine tools, compressors, and welding stations off a main incoming feed

Large retail warehouses with separate circuits for lighting, conveyor belts, and loading bay equipment

Multi-phase conversion projects where three-phase mains feed single-phase sub-distribution boards

Hospital outpatient departments isolating consulting rooms, pharmacy, and imaging equipment circuits

Sports complex changing rooms and plant rooms handling showers, lighting, and exercise machine feeds

Our Factory

We are equipped with complete distribution box production equipment and a strong technical and production team. Meanwhile, we have been continuously updating and upgrading our equipment to meet the diverse needs of customers.

Fast FAQ – Answers for Pros & DIYers

Q1: Is the DIN rail long enough for 22 devices in a row, or do I need spacers?

A: The rail is precision-cut to accept 22 single-pole modules end-to-end. Standard MCBs and RCBOs clip directly into place in sequence; no extra spacers or blanks are required to fill the rail.

Q2: How do I spot a tripped breaker among 22 devices without opening the lid?

A: Most contemporary MCBs and RCBOs include a visible trip indicator-typically a red or orange flag that drops when the device trips. You can scan the row through the closed cover, identify the flagged position, and then open the lid to reset only that breaker.

Q3: Is it practical to populate all 22 ways with RCBOs, or should I mix devices?

A: All 22 positions accept RCBOs if no main switch or RCDs are fitted. In practice, most installers fit a main switch plus dual RCDs, then use RCBOs only on circuits needing individual protection.

Q4: Can I add a padlock to the consumer unit for extra security?

A: The standard lid is held by magnet only and has no lock provision. If tamper-proofing is required, mount the unit inside a lockable cupboard or contact us about custom lockable lid options for bulk orders.

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