80.91.0.240.0000 FINDER, 80.91.0.240.0000 Datasheet - Page 162

• Manufacturer Part Number: 80.91.0.240.0000
• Description: TIMER, MULTIFUNCTION
• Manufacturer: FINDER

Specifications of 80.91.0.240.0000

• Contact Configuration: SPCO
• Nom Input Voltage: 240V
• Delay Time Range: 0.1s To 20h
• Adjustment Type: Screwdriver Slot
• Relay Mounting: DIN Rail
• Svhc: No SVHC (15-Dec-2010)
• Coil Voltage Vac Nom: 240V
• Coil Voltage Max: 240V

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i
EMC (ElectroMagnetic Compatibility) SPECIFICATIONS
TYPE OF TEST
ELECTROSTATIC DISCHARGE
RADIO-FREQUENCY ELECTROMAGNETIC FIELD (80 ÷ 1000 MHz)
FAST TRANSIENTS (burst) (5-50 ns, 5 kHz)
SURGES (1.2/50 µs)
RADIO-FREQUENCY COMMON MODE DISTURBANCES (0.15 ÷ 80 MHz)
POWER-FREQUENCY MAGNETIC FIELD (50 Hz)
RADIATED AND CONDUCTED EMISSION
In panel installations, the most frequent and, particularly, more dangerous type of electrical disturbances are the following:
1. Burst (fast transients). These are packets of 5/50ns pulses, having high peak voltage level but low energy since individual pulses are very
2. Surge (voltage pulses). These are single 1.2/50µs pulses, with energy much higher than bursts since the duration is considerably
The test levels V (peak values of the single pulses) are prescribed in appropriate product standards:
- EN 61812-1 for electronic timers;
- EN 60669-2-1 for electronic relays and switches;
- EN 50082-2 (generic standard for immunity in the industrial environment) for other electronic products for industrial application;
- EN 50082-1 (generic standard for immunity in the domestic environment) for other electronic products for domestic application;
Finder electronic products are in accordance with European EMC Directives 89/336/EEC and 93/68/EEC and indeed, have immunity
capabilities often higher than the levels prescribed in the above mentioned standards. Nevertheless, it is not impossible that some working
environments may impose levels of disturbances far in excess of the guaranteed levels, such that the product could be immediately destroyed!
It is therefore necessary to consider Finder products as not being indestructible under all circumstances. The user should pay attention to the
disturbances in electrical systems and reduce as much as possible these disturbances. For example, employ arc suppression circuits on the contacts
of switches, relays or contactors which otherwise might produce over-voltages when opening electrical circuits (particularly highly inductive or DC
loads). Attention should also be paid to the placement of components and cables in such a way as to limit disturbances and their propagation.
EMC rules - Require that it is the equipment designer who must ensure that the emissions from panels or equipment does no exceed the limits
stated in EN 50081-1 (generic standard for emission in the domestic environment) or 50081-2 (generic standard for emission in the industrial
environment) or any product specific harmonised EMC standard.
short - 5 ns rise time (5 x 10
of commutation transients from relays, contactors or motors. Usually they are not destructive, but they can affect the correct working of
electronic devices.
longer - 1.2 µs rise time (1.2 x 10
simulates disturbances caused by the propagation of atmospheric electrical storm discharges along electrical lines, but often the switching of
power contacts (such as the opening of highly inductive loads) can cause disturbances that are very similar, and equally destructive.
0.5 V
0.5 V
0.9 V
0.9 V
0.1 V
0.1 V
U
V
U
V
1.2 s
5 ns 30%
50 ns 30%
50 s
-9
seconds) and 50 ns fall time. They simulate the disturbances that can spread along the cables as a consequence
t
t
-6
seconds) and 50 µs fall time. For this reason they are very often destructive. The Surge test typically
U
single pulse
1
f
GENERAL TECHNICAL INFORMATION
REFERENCE STANDARD
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-8
EN 55011 / 55014 / 55022
t
U
t
d
packets of pulses
t
r
t