AB1VV235U SQUARE D, AB1VV235U Datasheet - Page 154

• Manufacturer Part Number: AB1VV235U
• Description: TERMINAL BLOCK, DIN RAIL, 2POS, 22-12AWG
• Manufacturer: SQUARE D

Specifications of AB1VV235U

• Connector Type: DIN Terminal Block
• Connector Mounting: DIN Rail
• Pitch Spacing: 5mm
• No. Of Contacts: 2
• Wire Size (awg): 22-12
• Contact Plating: Zinc
• Contact Material: Steel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Protective treatment according to
climate
7/4
Terminal Blocks, Type AB1
Technical information
Protective treatment of equipment
according to climate
Depending on the climatic and environmental conditions in which the equipment is
placed, Schneider Electric can offer specially adapted products to meet your
requirements.
To make the correct choice of protective finish, remember the following two points:
b The prevailing climate of the country is never the only criterion.
b Only the atmosphere in the immediate vicinity of the equipment needs to be
considered.
All climates treatment “TC”
This is the standard treatment for Telemecanique brand equipment and is suitable
for the vast majority of applications. It is the equivalent of treatments described as
“Klimafest,” or “Climateproof.”
In particular, it meets the requirements specified in the following publications:
b Publication UTE C 63-100 (method l), successive cycles of humid heat at:
+40 °C and 95% relative humidity.
b DIN 50016 - Variations of ambient conditions within a climatic chamber:
+23 °C and 83% relative humidity,
+40 °C and 92% relative humidity.
It also meets the requirements of the following marine classification societies:
BV-LR-GL-DNV-RINA.
Characteristics
b Steel components are usually treated with zinc. When they have a mechanical
function, they may also be painted.
b Insulating materials are selected for their high electrical, dielectric, and mechanical
characteristics.
b Metal enclosures have a heat-treated paint finish applied over a primary
phosphate protective coat, or are galvanized (e.g., some prefabricated busbar
trunking components).
Limits for use of “TC” (All climates) treatment
b “TC” treatment is suitable for the following temperatures and humidity:
“TC” treatment is therefore suitable for all latitudes, including tropical and equatorial
regions, when the equipment is mounted in normally ventilated industrial premises.
Being sheltered from external climatic conditions, temperature variations are small,
the risk of condensation is minimized, and the risk of dripping water is virtually non-
existent.
Extension of use of “TC” (All climates) treatment
In cases where the humidity around the equipment exceeds the conditions described
above, or in equatorial regions if the equipment is mounted outdoors, or if it is placed
in a very humid location (laundries, sugar refineries, steam rooms, etc.), “TC”
treatment can still be used if the following precautions are taken:
b The enclosure in which the equipment is mounted must be protected with a “TH”
finish (see next page) and must be well ventilated to avoid condensation and dripping
water (e.g. enclosure base plate mounted on spacers).
b Components mounted inside the enclosure must have a “TC” finish.
b If the equipment is to be switched off for long periods, a heater must be provided
(0.2 to 0.5 kW per square decimeter of enclosure), that switches on automatically
when the equipment is turned off. This heater keeps the inside of the enclosure at a
temperature slightly higher than the outside surrounding temperature, thereby
avoiding any risk of condensation and dripping water (the heat produced by the
equipment itself during normal running is sufficient to provide this temperature
difference).
b Special considerations for Operator Dialog and Detection products:
for certain pilot devices, the use of “TC” treatment can be extended to outdoor use
provided their enclosure is made of light alloys, zinc alloys, or plastic material. In this
case, it is also essential to ensure that the degree of protection against penetration
of liquids and solid objects is suitable for the applications involved.
Temperature
68 °F (20 °C)
104 °F (40 °C)
122 °F (50 °C)
Relative humidity
95%
80%
50%
0