AZEV140
ZETTLER
www.ZETTLER-group.com page 1 of 3 2023-11-02
40 AMP POWER RELAY
Arrangement
load contact
signal contact
SPST-NO (1 Form A)
SPST-NC (1 Form B) coupled to load contact
Ratings (max.)
load contact
switched power
switched current
switched voltage
signal contact
switched current
minimum load
(resistive load)
22000 VA
50 A
440 VAC
10 mA at 12 VDC
10 mA, 5 VDC, 50mW
Approved ratings
load contact
signal contact
(UL/CUR/TÜV/CQC)
40 A at 440 VAC, resistive, 85°C, 30k cycles
32 A at 440 VAC, resistive, 85°C, 50k cycles
50 A at 440 VAC, resistive, 85°C, 6k cycles
20 A make, 50 A carry, 20 A break at 440 VAC,
resistive, 85°C, 50k cycles
10 mA at 12 VDC, 85°C, 50k cycles
Contact material
load contact
signal contact
AgSnO
2
(silver tin oxide)
AgNi + Au (silver nickel, gold plated)
Contact gap
load contact
≥ 2.25 mm
Contact resistance
load contact
initial
typical
≤ 50 mΩ
< 3 mΩ
CONTACTS
Life Expectancy
mechanical
electrical
(minimum operations)
1 x 10
5
see UL/CUR/TÜV/CQC ratings
Operate Time 30 ms (max.) at nominal coil voltage
Release Time 10 ms (max.) at nominal coil voltage, without
coil suppression
Dielectric Strength
open load contacts
coil to load contacts
open signal contacts
coil to signal contacts
signal to load contacts
(at sea level for 1 min.)
2500 V
RMS
4000 V
RMS
500 V
RMS
500 V
RMS
4000 V
RMS
Pulse current capability ≥ 1.50 kA , ≥ 6.0 kA²s
(based on requirements of IEC 62752)
≥ 1.85 kA , ≥ 4.5 kA²s
(based on requirements of IEC 62955)
Surge voltage
open load contacts
coil to load contacts
signal to load contacts
6 kV
6 kV
6 kV
Insulation Resistance 1000 MΩ (min.) at 23°C, 500 VDC, 50% RH
Temperature Range
operating
(at nominal coil voltage)
-40°C (-40°F) to 85°C (185°F)
Vibration resistance 0.062" (1.5 mm) DA at 10–55 Hz
Enclosure
protection category
material group
flammability
P.B.T. polyester
RT II, flux proof
IIIa
UL94 V-0
Terminals Tinned copper alloy, P. C.
Soldering
preheating
soldering
(referring IEC 61760-1 wave soldering)
120°C (248°F) / ≤ 120 s
260 ±5°C (500 ±9°F) / ≤ 10 s
Dimensions
length
width
height
35.0 mm (1.38”)
16.0 mm (0.63”)
28.0 mm (1.10”)
Weight 35 grams (approx.)
Compliance UL 508, IEC 61810-1, GB/T 21711.1-2008
RoHS, REACH
designed to meet requirements of
IEC 62752 and IEC 62955
Agency Approvals
UL / CUR
TÜV
CQC
E365652
B 088793 0016
CQC20002276475
Packing unit in pcs 50 per plastic tray
400 per carton box
GENERAL DATA
FEATURES
40 Amp nominal switching capability
Isolated NC signal contact for welding monitoring
Withstands up to 1850 A short circuit current
Wide contact gap of ≥ 2.25 mm
Dielectric strength 4 kV
RMS
UL / CUR: E365652
TÜV: B 088793 0016
CQC: CQC20002276475
Nominal coil DC voltages
5, 9, 12, 24, 48
Dropout voltage > 5% of nominal coil voltage
Holding voltage > 35% of nominal coil voltage
Coil power
nominal
holding power
at pickup voltage
(at 23 °C)
2.1 W
258 mW
1.2 W
Temperature rise 70 K at nominal coil voltage, 85°C
Insulation system class F, max. temperature 155°C (311°F)
COIL
AZEV140
ZETTLER
www.ZETTLER-group.com page 2 of 3 2023-11-02
COIL VOLTAGE SPECIFICATIONS
Nominal Coil
VDC
Must Operate
VDC
Min. Holding
VDC
Max. Coil
VDC
Resistance
Ohm ± 10%
5 3.75 1.75 6.0 11.8
9 6.75 3.15 10.8 38.4
12 9.0 4.2 14.4 68.5
24 18.0 8.4 28.8 274
48 36.0 16.8 57.6 1096
Test conditions: 23°C (73°F), upright position, terminals downward.
PC BOARD LAYOUT / WIRING DIAGRAMS
Layout and footprint recommendation. Viewed towards terminals.
Dimensions in mm.
Example ordering data
AZEV140-1AE-24D Without signal contact, 24VDC coil
AZEV140-1AE1BG-12D With 1 From B signal contact, 12VDC coil
ORDERING DATA
AZEV140-1AE - D
Nominal coil voltage
see coil voltage specifications table
Signal contact
nil: without signal contact
1BG: equipped with 1 Form B signal contact
MECHANICAL DATA
CAD data in attachment of the datasheet.
Dimensions in mm. Pin dimensions given without tin coating.
NOTES
1. All values at reference temperature of 23°C (73°F) unless stated
otherwise.
2. Relay may pull in with less than “Must Operate” value.
3. “Maximum Coil Voltage” is the maximum voltage the coil can endure for
a short period of time.
4. Coil suppression circuits such as diodes, etc. in parallel to the coil will
lengthen the release time. We recommend to use coil suppression
circuits with a reverse breakdown voltage of around 3 times the nominal
coil voltage to achieve a fast release time.
5. For applications requiring long term high current carrying, we
recommend to reduce the coil energization to around half of the
nominal coil voltage as holding voltage.
6. For the gold plated signal contact a minimum load of 10mA/5V/50mW is
recommended.
7. Provide sufficient PCB cross section at Form A load terminals as a heat
spreader to dissipate power loss form contact resistance.
8. Relay adjustment may be affected if excessive shock is applied to the
relay or if undue pressure is exerted on the relay case. Dropped relays
must not be used anymore.
9. For automated dual wave soldering process we recommend preheating
with 120°C (248°F) for max. 120 seconds and a soldering temperature
of 260 ±5°C (500 ±9°F) for max. 10 seconds soldering time (max. 5
seconds per wave). For manual soldering we recommend 350°C
(662°F) max. temperature for max. 5 seconds. During the soldering
process, no force may be exerted on the relay terminals.
10. RTII (flux proof) relays must not be washed, immersion cleaned or
conformal coated.
11. During storage, transport and usage, ensure a dry, non-condensing and
non-icing environment.
12. Substances containing silicone or phosphorus must be avoided in the
vicinity to the relay as these will shorten its service life.
13. Avoid corrosive gases near the relay. Contact corrosion will lead to
malfunction.
14. Specifications subject to change without notice.
Compliance with IEC 62752, IEC 62955 or similar standards for short
circuit withstand is a function of both relay design and PCB layout.
ZETTLER's relay design and applications engineering teams have
developed an application note that contains important design suggestions
to optimize the performance of the relay with respect to its short circuit
current withstand capability.
In addition, as the overall performance depends on multiple factors such as
part arrangement and trace routing, compliance cannot be generically
guaranteed by ZETTLER. We strongly encourage customers to conduct
their own short circuit tests in accordance with IEC 62752, IEC 62955 or
similar standards in the context of their individual application design.
IEC 62752 / IEC 62955 Short Circuit Withstand