f e Ex position switches with/without safety function // Series Ex 355 Technical data // EX 355

Transcription

1 // Series Ex Ex zone 1 and 21 - Mounting and switching details to EN cable entries - Actuating elements can be repositioned by 4 x 90 - Rocking lever can be positioned in 10 steps - With gold-plated contacts available on request - Special version only for dust Ex zone 22 // EX 355 Technical data 166 Standards EN ; EN 1088; EN , EN , EN , EN ; EN ISO Design mounting dimensions and switching points to DIN EN Enclosure zinc die-cast, enamelled Switch insert Ex 95 Protection class IP 67 to IEC/EN Contact material silver Switching system slow action, positive break NC contact A Switching elements change-over contact with double break Zb or 2 NC contacts, galvanically separated contact bridges Connection M3 screw clamps Cable section max. 1.5 mm 2 (incl. conductor ferrules) B 10d (10 % load) 2 million T M max. 20 years U imp 4 kv U i 250 V I the 6 A I e /U e 6 A/250 VAC; 0.25 A/230 VDC Utilisation category AC-15, DC-13 Max. fuse rating 6 A gg/gn-fuse Ambient temperature 20 C +60 ºC Mechanical life > 1 million operations Switching frequency 1800/h Repeat accuracy ± 0.1 mm Contact gap max. 2 x 3.5 mm Ex marking L II 2G Ex de IIC T6/T5 Gb, II 2D Ex tb IIIC T80 C/T95 C Db IECEx Ex de IIC T6/T5 Gb, Ex tb IIIC T80 C/T95 C Db Approvals BVS 04 ATEX E 126, IECEx BVS f e Type code Ex 355 S 1Ö/1S-3D Equipment Categ. 3D, dust Ex zone 22 Contact type 1Ö/1S, (2Ö, UE) Actuator S (R, 4VH, 4V7H-2138, etc.) Series Ex certified component

2 // Series Ex 355, actuators - Actuator type B to DIN EN Actuating speed 0.5 m/s with an actuating angle of α = 0 - Actuator type C to DIN EN Actuating speed 0.5 m/s with an actuating angle of α = 30 // Plunger S // Roller plunger R NC/1 NO contact Ex 355 S 1Ö/1S 1 NC/1 NO contact Ex 355 R 1Ö/1S 1 NC/1 NO contact Ex 355 S UE 1 NC/1 NO contact Ex 355 R UE 2 NC contacts Ex 355 S 2Ö 2 NC contacts Ex 355 R 2Ö

3 // Series Ex 355, actuators - Actuating speed 0.5 m/s with an actuating angle of α = 30º - Actuation parallel to switch from right - Actuating speed 0.5 m/s with an actuating angle of α = 30º - Actuation parallel to switch from below Note Actuation from the left should be avoided since this reduces the mechanical life of the position switch. // Roller lever 1K // Angled roller lever 3K NC/1 NO contact Ex 355 1K 1Ö/1S 1 NC/1 NO contact Ex 355 3K 1Ö/1S 1 NC/1 NO contact Ex 355 1K UE 1 NC/1 NO contact Ex 355 3K UE 2 NC contacts Ex 355 1K 2Ö 2 NC contacts Ex 355 3K 2Ö

4 - Actuator type A to DIN EN // Rocking roller lever 4VH // Long rocking roller lever 4V3H NC/1 NO contact Ex 355 4VH 1Ö/1S 1 NC/1 NO contact Ex 355 4V3H 1Ö/1S 1 NC/1 NO contact Ex 355 4VH UE 1 NC/1 NO contact Ex 355 4V3H UE 2 NC contacts Ex 355 4VH 2Ö 2 NC contacts Ex 355 4V3H 2Ö

5 // Series Ex 355, actuators - Safety switch A, positive break, ordering suffix No safety switch! Note Positive break angle T only valid for Ex T4V7H 356 1Ö/1S-2138 // Adjustable rocking lever 4V7H // Forked lever latching 3V4D NC/1 NO contact Ex 355 4V7H 1Ö/1S 1 NC/1 NO contact Ex 355 3V4D 1Ö/1S 1 NC/1 NO contact Ex 355 4V7H UE 1 NC/1 NO contact Ex 355 3V4D UE 2 NC contacts Ex 355 4V7H 2Ö 2 NC contacts Ex 355 3V4D 2Ö

6 - No safety switch! - Actuator type D to EN No safety switch! - Wear-resistant plastic tip - Spring rod can be actuated from any direction - Elasticity of spring allows for deflection above the max. switching angle of 12 // Rod lever 4V10H // Spring rod with plastic tip TK NC/1 NO contact Ex 355 4V10H 1Ö/1S 1 NC/1 NO contact Ex 355 TK 1Ö/1S 1 NC/1 NO contact Ex 355 4V10H UE 2 NC contacts Ex 355 TK 2Ö 2 NC contacts Ex 355 4V10H 2Ö