Data Sheet

E
Technical data
Insulation 72.01/72.11 72.42
Insulation Dielectric strength Impulse (1.2/50 µs)
between supply and contacts 4000VAC 6kV 6kV
between supply and control (for 110…240V version only) 2500VAC — 4kV
between electrodes, Z1-Z2 and supply* 4000VAC 6kV —
between contacts and electrodes 4000VAC 6kV —
between open contacts 1000VAC 1.5kV 1.5kV
EMC specifications
Type of test Reference standard 72.01/72.11 72.42
Electrostatic discharge contact discharge EN61000-4-2 4kV 4kV
air discharge EN61000-4-2 8kV 8kV
Radio-frequency electromagnetic field (80…1000 MHz) EN61000-4-3 10V/m 10V/m
(1…2.8 GHz) EN61000-4-3 — 5 V/m
Fast transients on supply terminals EN61000-4-4 4kV 4kV
(burst 5/50 ns, 5 and 100 kHz) on control terminals EN 61000-4-4 — 4kV
Voltage pulses on supply terminals common mode EN61000-4-5 4kV 4kV
(surge 1.2/50 µs) differential mode EN61000-4-5 4kV 4kV
Radiofrequency common mode on supply terminals EN61000-4-6 10V 10V (0.15…230MHz)
voltage (0.15…280 MHz) on control terminals EN61000-4-6 — 10V
Voltage dips 70%U
N
EN61000-4-11 — 25 cycles
Short interruptions EN61000-4-11 — 1 cycles
Radiofrequency conducted emissions (0.15…30MHz) CISPR 11 class B class B
Radiated emissions (30…1000MHz) 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
1x6 / 2x4 1x4 / 2x2.5
AWG 1x10 / 2x12 1x12 / 2x14
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) 5mA, 5V
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 100nF/km)
* There is no electrical isolation between electrodes and supply voltage for the 24VDC 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 24VAC 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