Heatstrip THE3200r Trips Switch

[Alvinc77]

Our sparky has just installed 2 x Heatstrip THE 3200 strip heaters (13A Max Each) which keep tripping the switches in the power board.

We have checked the cabling (20A Max Each) as well as the Power board (50A) to ensure capacity.
Reading the manual the guide recommends hardwiring the heaters as opposed to a plug and socket.
Could the fact that they have been wired via a plug and socket be causing them to trip, or is this a red herring?

Thanks in advance

 

[telectrix]

what is tripping (MCB/RCD)? and what rating?photo would help.

 

[Alvinc77]

You’ll have to excuse my ignorance but MCB

 

[Alvinc77]

See 1.6 and 1.7

 

[telectrix]

can't tellfrom photo. what do they have on the front of the breakers. B16?