YY Control Flexible Cable 4 Core 1.5mm 50m | YY1.54C050

Description

Doncaster YY is an unscreened, flexible PVC control cable with a grey PVC sheath, used to link fixed and mobile equipment. This 4 core 1.5 mm² 50 m reel suits indoor to outdoor unit wiring on single and multi split air conditioning systems where the unit manufacturer allows a control-type cable.

The plain annealed copper conductors are flexible, and the PVC insulation and sheath keep the cable slim at 8.8 mm overall diameter, so it is easy to route through trunking and clip along walls. It is rated 300/500 V, works from −15 °C to +70 °C and has a minimum bending radius of 6 times the cable diameter.

4 core

1.5 mm² conductors

50 m

Reel length

8.8 mm

Overall diameter

300/500 V

Voltage rating

−15 to +70 °C

Operating temperature

6 x ∅

Minimum bending radius

⚠ Electrical work: competent person only

Fixed wiring must be designed and installed to BS 7671 by a competent person. In dwellings in England, new circuits are notifiable under Part P of the Building Regulations. Size the cable and its protective device for the unit's rated current, the cable length and the installation method.

⚠ Best suited to indoor use

Doncaster states that, if protected correctly, YY can be used in outdoor projects, but it is recommended and most commonly used indoors in dry or moist conditions. Run it in conduit or trunking where it is exposed outside, and note it is unscreened.

ℹ Follow the unit manual

Air conditioning manufacturers specify the cable type, number of cores and cross-sectional area for the power supply and the indoor to outdoor interconnection. Check the installation manual for your indoor and outdoor units before ordering.

Key features

🔌

Flexible copper conductors

Plain annealed copper conductors that are flexible and easy to terminate.

📏

Slim 8.8 mm profile

An overall diameter of 8.8 mm makes it easy to route through trunking and small wall penetrations.

🧱

Tough grey PVC sheath

PVC insulation and PVC sheath (types TI2 and TM2) for durable general indoor use.

🌡️

Temperature range

Operates from −15 °C to +70 °C, with a minimum bending radius of 6 x ∅.

🔗

Links fixed and mobile equipment

Flexible construction suits linking fixed and mobile equipment as well as light mechanical stress.

📦

50 m reel

A 50 m reel covers typical indoor to outdoor runs, with enough over for several installs.

Technical specification

Product

Brand

Doncaster Cables

Type

YY PVC insulated and sheathed flexible control cable

Manufacturer part number

YY1.54C050 (50 m reel)

Cores

4

Conductor size

1.5 mm²

Reel length

50 m

Construction

Conductor

Plain annealed copper

Insulation

PVC type TI2 to BS EN 50363-3

Sheath

PVC type TM2 to BS EN 50363-4-1, grey

Screen

None (unscreened)

Overall diameter

8.8 mm

Electrical and thermal

Voltage rating

300/500 V

Operating temperature

−15 °C to +70 °C

Minimum bending radius

6 x overall diameter

Frequently asked questions

Is YY cable suitable for connecting indoor and outdoor air conditioning units?

It is commonly used to link equipment, but the cable type, core count and size must match the unit manufacturer's specification. Check the installation manual for your indoor and outdoor units before ordering.

Is YY cable screened?

No. YY is unscreened. If you need a screen or mechanical protection from a braid, look at the SY (steel braid) or CY (copper braid) control cables instead.

Can I use it outdoors?

Doncaster says YY can be used outdoors if protected correctly, but recommends it for indoor use in dry or moist conditions. Use conduit or trunking where it is exposed to weather or damage.

What size and number of cores do I need?

This depends on the units. Count the terminals between the indoor and outdoor unit in the wiring diagram and use the cross-sectional area the manual specifies.

What is the minimum bending radius?

Six times the overall cable diameter, so about 53 mm for this 8.8 mm cable.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

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External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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