Mains Test Block, Rated At 16A, 440 V ac

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

RS PRO Mains Test Block

This three phase quicktest QT3 test power Connector is a compact, robust, power connector designed for temporary, safe and efficient connection of unterminated cables to 440Vac three-phase power supplies. The QT3 has a maximum rating of 16 amps.

The QT3 is designed for use in applications including manufacturing, test and repair, calibration, measurement, and anywhere a fast, safe and non-permanent connection to a three-phase power supply is required.

Connection to the Quickest takes just a few seconds. Simply open the lid, which automatically isolates the three phase supply, insert each bare cable end by pressing the five colour-coded piano key cable clips, and then close the lid to complete the circuit between the device being tested and the main electrical power supply. Opening the lid again isolates the supply source so the conductors can be rapidly removed.

Features and Benefits:

• Quick release
• Colour coded cable clips
• No sockets or screws
• Each phase protected with 16 amp fuses as standard
• Each phase fitted with individual neon indicator lamps when live
• Bench mounted or free standing
• Maximum rating 16 Amps 440 Vac
• Operating temperature -10°C to +40°C

Dimensions (HxWxL):
49mm x 100mm x 160mm


Duty Cycle (per 10 minutes):
16 Amps - 10%
13 Amps - 25%
10 Amps - 40%
7 Amps - 80%
5 Amps - 100%

Please also note that this three phase test block is not supplied with a power cord.


  • Always connect the earth connection for safety.
    Always use in conjunction with an RCD; for a suitable device, consider RS 825-6093
Attribute Value
Voltage Rating 440 V ac
Width 100mm
Height 49mm
Depth 160mm
Current Rating 16A
67 In stock for FREE next working day delivery
Price Each
£ 52.43
(exc. VAT)
£ 62.92
(inc. VAT)
Per unit
1 - 11
12 - 24
25 +
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