Ex 14 / ExM 14

Applied standards

EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN 60079-31, EN ISO 13849-1, EN ISO 14119

Enclosure

thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0

Switch type

type 1

Coding level

no coding

Degree of protection

IP65 (IEC/EN 60529)

B_10d (10 % load)

2 million

T_M

max. 20 years

Contact material

silver

Switching system

Ex 14: slow action, positive break NC contacts A; positive break depends on the actuator used
ExM 14: snap action

Switching elements

Ex 14: 1 NC/1 NO contact or 2 NC contacts, type Zb
ExM 14: change-over contact with single break type C or 1 NC/1 NO contact, type Za

Connection

cable H05VV-F

Cable cross-section

3 or 4 x 0.75 mm² (incl. conductor ferrules)

Rated impulse withstand voltage U_imp

4 kV

Rated insulation voltage U_i

250 V

Conventional thermal current I_the

Ex 14: T6: 6 A; T5: 3 A
ExM 14: 5 A

Rated operating current/voltage I_e/U_e

Ex 14: 6 A/250 VAC, 0.25 A/230 VDC;
ExM 14: 5 A/250 VAC, 0.16 A/230 VDC;
ExM 14 1Ö/1S: 5 A/250 VAC, 0.25 A/230 VDC

Utilisation category

Ex 14, ExM 14: AC-15; DC-13
ExM 14 1Ö/1S: AC-1; DC-1

Short-circuit protection

Ex 14: 6 A gG/gN fuse;
ExM 14: 5 A gG/gN fuse

Safety class

II

Ambient temperature

Ex 14: T6: –20 °C … +65 °C, T5: –20 °C … +75 °C, +90 °C with max. 3 A
ExM 14: –20 °C … +60 °C
(down to –40 °C available on request)

Mechanical life

> 1 million operations

Operation cycles

max. 1800/h

Repeat accuracy of switching points

± 0.1 mm

Contact opening

max. 2 x 4 mm

Ex marking

Ex 14:
L II 2G Ex db IIC T6/T5 Gb,
L II 2D Ex tb IIIC T80 °C/T95 °C Db

ExM 14:
L II 2G Ex d IIC T6 Gb,
L II 2D Ex tb IIIC T80 °C Db IP65

ExM 14 1Ö/1S:
L II 2G Ex db IIC T6 Gb,
L II 2D Ex tb IIIC T80 °C Db

Approvals

Ex 14:
PTB 03 ATEX 1070 X
IECEx PTB 06.0098X
f a d

ExM 14:
PTB 03 ATEX 1069 X

ExM 14 1Ö/1S:
PTB 00 ATEX 1006 X
IECEx PTB 13.0019X