Short Lead Time for Miniature circuit breaker-FTM8-LE to Greece Importers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Product illustration:

Technical Data

Model FTM8LE Residual current circuit-breaker
Number of poles IP+N,2P,3P,3P+N,4P
Rated frequency: AC 50/60Hz
Rated voltage (V) AC 230/400
 Rated current (A) C D 1,3,6,10,16,20,25,32,40,50,63 1,3,6,10,16,20,25,32,40,50,63
Rated residual operating current(mA) 30
Rated residual non-operating current(mA) 15
Residual current breaking time 30mA≦0.1s  250mA≦0.04s
Rated short-circuit breaking capacity(KA) 6(In≦40A); 4.5(In﹥40A)
Rated residual current breaking capacity(KA) 3
Mechanical & electrical life: 10,000 operations
protection rating Ip20
Installation On DIN rail 35mm according to JB6525
Connection capacity: Cross-section of conductors up to 25mm2
Tightening torque 2 Nm
Ambient temperature (°C) -5°C ~ +40°C
Altitude (m) ≤2000m
Relative air humidity no more than 95%
pollution degree
installation condition Used in place without obvious shock and vibration
 Weight (g) ≦32A ﹥40A ≦32A ﹥40A ≦32A ﹥40A ≦32A ﹥40A ≦32A ﹥40A
216 240 320 343 445 473 468 518 585 63

Exterior and dimensions



 Number  of poles Rated current
<40A ≥40A
Width (mm) Modules Width(mm) Modules
1 /2 45 2.5 54 3
2/2 63 3.5 72 4
3/3 90 5 103.5 5.75
3 /4 99 5.5 117 6.5
4/4 117 6.5 135 7.5

A Pool Cartridge Filter has an O-ring between the filter head and the filter body. If you see water leaking or spraying out at this junction, it’s time to replace this O-ring. This video shows you how to replace the O-ring on a typical pool cartridge filter.

For pool parts, supplies, and more guides, visit:

Step 1
The first step is to shut off power to the pool pump at the circuit breaker. This will stop the flow of water through the pool filter.

Step 2
Next you will have to relieve the pressure that has built up in the pool filter. Note the pressure on the pressure gauge. It will typically read between 15 – 20 psi. To relieve pressure turn the air relief valve on top of the filter counter clockwise. Water will spray out initially as you see the pressure on the pressure gauge go to 0 psi.

Step 3
To access the pool filter cartridge O-ring you will have to take the pool filter head off the top of the filter. Turn the locking knob counter clockwise until you feel the pool filter head is loose. Note: The locking knob does not come off the top of the filter head.

Step 4
Lift the pool filter head off the top of the filter. It may be a little hard to lift initially as you break the O-ring seal between the two pool filter parts.

Step 5
The Pool Filter O-ring should be in a groove in the collar of the filter head. If it’s stretched like this one, it may fall out of the groove – a good indication that it’s time to be replaced. Roll the O-ring out of the groove and off the filter head collar.

Step 6
Clean out the groove with a damp cloth.

Step 7
Inspect the new O-ring for any factory defects like cracks or bulges. Roll the new O-ring into the groove of the filter head.

Step 8
Apply a thin layer of silicon based lubricant onto the Pool Filter O-ring. This will help preserve the O-ring. Do not use petroleum based lubricants, like petroleum jelly as these will deteriorate the O-ring.

Step 9
Replace the pool filter head on top of the pool filter. Position the top so that you can read the pressure gauge.

Step 10
When replacing the filter top, watch that the Pool Filter O-ring doesn’t bulge out of its grove. This becomes more of a problem as the O-ring becomes older and stretches. It should not be a problem with a new O-ring.

Step 11
Hand tighten the locking knob clockwise

Step 12
Turn on power to the pool pump to repressurize the pool filter.

Step 13
The air relief valve should still be open. As the pressure builds, air will be released through the relief valve. When water starts to spray out of the valve, turn the valve clockwise to close it.

Step 14
Check the pressure gauge. It typically reads between 10 – 20 psi but this will vary according to the make of pool cartridge filter or its age.

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