Data Sheet
E
Technical data
Insulation 72.01/72.11 72.42
Insulation Dielectric strength Impulse (1.2/50 µs)
between supply and contacts 4000VAC 6kV 6kV
between supply and control (for 110…240V version only) 2500VAC — 4kV
between electrodes, Z1-Z2 and supply* 4000VAC 6kV —
between contacts and electrodes 4000VAC 6kV —
between open contacts 1000VAC 1.5kV 1.5kV
EMC specifications
Type of test Reference standard 72.01/72.11 72.42
Electrostatic discharge contact discharge EN61000-4-2 4kV 4kV
air discharge EN61000-4-2 8kV 8kV
Radio-frequency electromagnetic field (80…1000 MHz) EN61000-4-3 10V/m 10V/m
(1…2.8 GHz) EN61000-4-3 — 5 V/m
Fast transients on supply terminals EN61000-4-4 4kV 4kV
(burst 5/50 ns, 5 and 100 kHz) on control terminals EN 61000-4-4 — 4kV
Voltage pulses on supply terminals common mode EN61000-4-5 4kV 4kV
(surge 1.2/50 µs) differential mode EN61000-4-5 4kV 4kV
Radiofrequency common mode on supply terminals EN61000-4-6 10V 10V (0.15…230MHz)
voltage (0.15…280 MHz) on control terminals EN61000-4-6 — 10V
Voltage dips 70%U
N
EN61000-4-11 — 25 cycles
Short interruptions EN61000-4-11 — 1 cycles
Radiofrequency conducted emissions (0.15…30MHz) CISPR 11 class B class B
Radiated emissions (30…1000MHz) CISPR 11 class B class B
Terminals
Screw torque Nm 0.8
Wire strip length mm 9
Max. wire size solid cable stranded cable
mm
2
1x6 / 2x4 1x4 / 2x2.5
AWG 1x10 / 2x12 1x12 / 2x14
Other data
Current absorption on Z1 and Z2 (type 72.11) mA <1
Current absorption on control signal (B1-B2 and B2-B3) - (type 72.42) 5mA, 5V
Power lost to the environment 72.01/72.11 72.42
without contact current W 1.5 0.9 (1 relay ON)
with rated current W 3.2 3.0 (2 relays ON)
Max cable length between electrode and relay (types 72.01/72.11) m 200 (max. capacitance of 100nF/km)
* There is no electrical isolation between electrodes and supply voltage for the 24VDC types (72.x1.9.024.0000). Therefore, for SELV applications it would
be necessary to use a SELV (non-grounded) power supply. In the case of a PELV (grounded) power supply take care to protect the level control relay
against harmful circulating currents by ensuring that no electrodes are grounded.
However, there is no such problem for the 24VAC types (72.x1.8.024.0000) which, by virtue of an internal isolating transformer, assure reinforced
isolation between electrodes and supply.
6
IV-2018,www.findernet.com
72 SERIES
Monitoring relays
72
SERIES