Technical Data

Rated insulation voltage (Ui)

Conforming to IEC/EN 60947-1

Overvoltage category III

Degree of pollution: 2

500 V

Rated impulse withstand voltage (Uimp)

Conforming to IEC/EN 60947-4-2

6 kV (24 Vdc control voltage); 4 kV (110–230 Vac control voltage)

Conformity to standards

–

IEC/EN 60947-4-2, UL 60947-4-1,

and the standards used for ATEX (for STO products)

Product certifications

–

CE, UKCA, cULus, ATEX (for STO products), CCC (ongoing)

Degree of protection

Conforming to IEC/EN 60947-1

IP20

Environment category

Conforming to IEC/EN 60947-1

E

Protective treatment

Conforming to IEC/EN 60068-2-30

TC

Ambient air temperature around the device

Storage

-40 °C to +80 °C (-40 °F to 176 °F)

Operation

For information about derating curves according to ambient temperature, refer to derating characteristics.

-25 °C to +70 °C (-13 °F to 158 °F)

Maximum operating altitude

Without derating

2,000 m (6,561 ft)

Operating positions

–

Vertical axis (horizontal DIN rail)

Flame resistance of plastic parts

Conforming to UL94

V0

Conforming to IEC/EN 60695-2-12

960 °C (1,760 °F)

Shock resistance 1/2 sine wave = 18 ms

Conforming to IEC/EN 60068-2-27

30 g (30 gn) starter OFF

30 g (30 gn) starter ON

Vibration resistance

10–150 Hz

Conforming to IEC/EN 60068-2-6

5 g (5 gn) starter OFF

5 g (5 gn) starter ON

Resistance to electrostatic discharge

Conforming to IEC/EN 61000-4-2

Air discharge: 8 kV

Contact discharge: 6 kV

Immunity to radiated high-frequency disturbance 80–1 GHz

Conforming to IEC/EN 61000-4-3

20 V/m

Immunity to radiated high-frequency disturbance 1.0–6 GHz (1,0–6 GHz)

Conforming to IEC/EN 61000-4-3

10 V/m

Immunity to fast transient current

Conforming to IEC/EN 61000-4-4

3 kV

Immunity to conducted high-frequency disturbances

Conforming to IEC/EN 61000-4-6

10 V

Radiated emission and conducted

Conforming to CISPR11 and EN55011

Class A

Surge

Conforming to IEC/EN 61000-4-5

1 kV symmetrical, 2 kV asymmetrical

Rated voltage

AC 50/60 Hz

110–230 V

DC

24 V

Voltage limits

AC 50/60 Hz

85–253 V

DC

19.2–30 V

Consumption

–

45 mA for 24 Vdc

12 mA for 230 Vac

Operating time

Switch on

35 ms

Switch off

40 ms

Voltage dips

–

3 ms

Short time interruptions

–

3 ms

Power dissipation

–

0.88/4.1 W

0.88/7 W

Rated operating current (see derating curve)

–

0.18–2.4 A

1.5–9 A

AC51

Conforming to IEC/EN 60947-4-3

0.18–2.4 A

1.5–9 A

AC53a

Conforming to IEC/EN 60947-4-2

0.18–2.4 A

1.5–6.5 A

Electrical life

AC51

30,000,000 operations

30,000,000 operations

AC53A

30,000,000 operations

30,000,000 operations

Maximum operating rate (ON/OFF 50-50)

AC51

7,200 operations/hr

7,200 operations/hr

AC53A

Maximum Operating Rate for AC53A Duty

Maximum Operating Rate for AC53A Duty

Maximum starting current in AC53A

–

• 52 A for a single product

• 40 A for side-by-side products

• 52 A for a single product

• 40 A for side-by-side products

Coordination

Conforming to IEC/EN 60947-4-2

Type 1 with circuit breaker

Type 1 with circuit breaker

Conforming to IEC/EN 60947-4-2

Type 1 with fuses

Type 1 with fuses

Time to restart after overload trip

Manual or remote

2 minutes

2 minutes

Automatic

20 minutes

20 minutes

Length of stripped cable

7 mm

0.28 in.

10 mm

0.39 in.

Solid cable without cable end, and 1 conductor

0.25–2.5 mm²

AWG 24–14

0.25–2.5 mm²

AWG 24–14

Solid cable without cable end, and with 2 conductors of the same cross section

0.25–0.75 mm²

AWG 24–20

–

–

Flexible cable without cable end, and with 1 conductor

0.25–2.5 mm²

AWG 24–14

0.25–2.5 mm²

AWG 24–14

Flexible cable with cable end and 1 conductor

0.25–2.5 mm²

AWG 24–14

0.25–2.5 mm²

AWG 24–14

Flexible cables of the same cross section, connected to a single twin-cable end

0.25–1.5 mm²

AWG 24–16

0.25–1.5 mm²

AWG 24–16

Tightening torque

0.5–0.6 N.m

4.4–5.3 lb-in.

–

–

Flat screwdriver

Diameter 3 mm

Diameter

1/8 in.

–

–