Ex belt alignment switch

Ex ZS 92 SR-3D


  • Ex zone 22

  • Temperature resistant from -20 °C to +55 °C

  • Corrosion-resistant aluminium enclosure

  • Screws and belt-alignment roller made of stainless steel

  • With staggered contacts, adjustable from 5° to 35°

  • Belt alignment lever adjustable in 12° steps using a self-locking mechanism

  • Back and base mounting possible

  • Indicator lamp 24 VAC/DC (red)

Technical data

Applied standards

EN 60947-5-1, EN IEC 60079-0, EN 60079-31

Enclosure

aluminium die-cast, corrosion-resistant, powder-coated, passivated, impact resistant, anthracite grey, similar to RAL 7016

Cover

aluminium die-cast, corrosion-resistant, powder-coated, passivated, impact resistant, signal yellow, similar to RAL 1003

Actuator

stainless steel

Calotte

polycarbonate, impact resistant, self-extinguishing UL 94 V-0, red transparent

Tightening torque

cover screws: max. 2.5 Nm

Degree of protection

IP66 (EN 60079-0 + IEC/EN 60529)

B10d (10 % load)

2 million

TM

max. 20 years

Contact material

silver

Switching elements

2 NC/2 NO contacts, type Zb

Switching system

snap action, positive break NC contacts A

Switching points

adjustable 5° to 35°; pre-adjustment setting 2 x 10°

Connection

screw connection terminals

Cable cross-section

0.5 ... 2.5 mm² (incl. conductor ferrules)

Cable entry

2 x M25 x 1.5

Rated impulse withstand voltage Uimp

6 kV

Rated insulation voltage Ui

250 V

Conventional thermal current Ithe

2 A / 4 A / 6 A

Conditional short-circuit current

1100 A

Utilisation category

AC-15

Rated operating current/voltage Ie/Ue

max. 2 A/4 A/6 A / 250 VAC

Short-circuit protection

2 A / 4 A / 6 A gG/gN fuse

Mechanical life

> 1 000 000 operations at max. 45° operating angle

Admissible belt speed

7 m/s for 3 h with a force of 50 N

Operation cycles

max. 600/h

Ambient temperature

–20 °C … +55 °C max. 2 A,
–20 °C … +50 °C max. 4 A,
–20 °C … +45 °C max. 6 A

Degree of pollution

3

Rated operating voltage range UB

Indicator lamp: 24 VAC/DC +10/-15 %

Rated operating current Ie

Indicator lamp: ∼ 15 mA

Ex marking

L II 3D Ex tc IIIC T80°C Dc

Downloads

Loading...
Mounting and wiring instructions – Ex ZS 92 SR-3D

German, English, French, Italian, Portuguese, Russian

PDF 6 MB 25.09.2023
Mounting and wiring instructions – Indicator lamp

German, English, French, Italian, Portuguese

PDF 1 MB 03.11.2023
Please go to the relevant product pages for additional downloads.

Other interesting products

2D version for dust Ex zone 21

Ex