Werma 785 Ex Rotating Mirror Beacon Catalog Page

785 Ex Rotating Mirror Beacon

Long life duration thanks to low

wear wheel and disc drive

• Gas applications: Zones 1 and 2

• Dust applications: Zones 21 and 22

• Extreme durability thanks to low
wear wheel and disc drive

• Salt water resistant

• Integrated mounting bracket (VA steel)

• Effective explosion protection
even at extreme temperatures
(-50°C to +50°C, with accessory)

• Connection area “e” for simple
connection and cabling to power
source

TECHNICAL SPECIFICATIONS:

Dimensions (Ø x Height): 139 mm x 214 mm
Housing: Black coated aluminium, salt water resistant
Lens: Reinforced borosilicate glass
Connection: CAGE CLAMP
Fixing: Wall, base and ceiling mounting

Integrated mounting bracket, VA steel
Cable entry: Cable gland M20 x 1.5 mm
Cable diameter 6-13 mm

Drive: Wheel and disc drive, motor in centre of gravity
Mirror rotation rate: 180 r.p.m.
Service life of drive:
Explosion protection:

Approval: BVS 11 ATEX E 107
Assembly: Ex screw plug M20 x 1.5 mm

Ex cable gland M20 x 1.5 mm

>

5,000 hours

II 2G Ex d e IIC T5 Gb
II 2D Ex tb IIIC T95°C Db

®

max. 2.5 mm

²

Additional protection with the
robust wire guard (accessory)

Ex Signal Devices

ORDER SPECIFICATIONS:

Voltage 24 V AC/DC 115 V/230 V AC/DC
Current consumption 1.0 A 130 mA at 230 V AC/350 mA at 115 V AC
red 785 100 75 785 100 70
yellow 785 300 75 785 300 70

ACCESSORIES:

Ex wire guard, VA steel, stainless

Ex cable gland M20 x 1.5 mm, metal

975 729 03

975 729 04

To expand the temperature range from -40 °C to -50 °C

Ex screw plug M20 x 1.5 mm
Ex cable gland M20 x 1.5 mm

975 729 02
975 729 01

For connection to an additional beacon

SPARE PARTS:

Halogen bulb 20 W/24 V for 24 V AC/DC
Halogen bulb 20 W/12 V for 115 V/230 V AC/DC

955 885 25
955 885 24

TECHNICAL DIAGRAMS:

see page 314

278

2 G

Zone 1 + 2

2 D

Zone 21 + 22

2,9 kg

IP 66

+50°C

-30°C