Ex ZS 90 SR

Applied standards	EN 60947-5-1; EN 60079-0, EN 60079-1, EN 60079-31; EN ISO 13849-1
Enclosure	thermoset, UV resistant to EN ISO 4892
Cover	thermoset, UV resistant to EN ISO 4892
Switch insert	2 x Ex 14
Degree of protection	IP 65 to IEC/EN 60529
Contact material	silver
Switching system	slow action, positive break NC contacts
Switching elements	1 NC/1 NO contact or 2 NC/2 NO contacts, type Zb
Connection	pre-wired cable H05VV-F
Cable length	3 m
B_10d (10 % load)	Ex ZS 90 SR VD: 200 000, Ex ZS 90 SR: 2 million
T_M	max. 20 years
Rated impulse withstand voltage U_imp	4 kV
Rated operating isolation voltage U_i	250 V
Conventional thermal current I_the	T6: 6 A, T5: 3 A
Utilisation category	AC-15; DC-13
Rated operating current/voltage I_e/U_e	6 A/250 VAC; 0.25 A/230 VDC
Short-circuit protection	6 A gG/gN fuse
Ambient temperature	T6: –20 °C … +65 °C, T5: –20 °C … +75 °C, +90 °C with max. 3 A
Mechanical life	Ex ZS 90 SR VD: > 100 000 operations, Ex ZS 90 SR: > 1 million operations
Impact energy	max. 7 J
Ex marking	II 2G Ex db IIC T6/T5 Gb, II 2D Ex tb IIIC T80 °C/T95 °C Db IECEx Ex db IIC T6/T5 Gb, Ex tb IIIC T80 °C/T95 °C Db
Approvals	PTB 03 ATEX 1070 X* IECEx PTB 06.0098X* *referring to the switch insert

Ordering details

Slow action

1 NC/1 NO contact

Slow action

2 NC/2 NO contacts

Type		Material no.
Type		Material no.
Ex ZS 90 SR 1ÖS/1ÖS VD - 3m		1185386

Type		Material no.
Ex ZS 90 SR 1ÖS/1ÖS - 3m	stock type Standard versions, in stock or available at short notice	1184969