Exi Fire Manual call point

The RD81 Exi manual detector is intended for manual fire detection in areas with a potentially explosive atmosphere (ZONES 1 and 2).
This detector can be used with the associated SSU24-ExEi device or with the use of the Zener barrier.

The difference between the RD81-exi and RD82-exi detectors is in the number of introductions.

RD81-exi – end base with 1 gland

RD82-exi – a passage base with 2 glands

There is also an RD-T Exi pushbutton for physical interruption in explosive atmospheres (ZONES 1 and 2) and comes with one glove (end) or two gates (transient) in color options (red, blue, yellow).

Max. voltage, current and power

25,8 V DC / 200 mA / 800 mW

Maximum Alarm Current Allowed

connection to:

L- i L1+

L- i L2+

22 mA

200 mA

Steady-state current

0 μA

Operating ambient temperature allowed

- via SSU-24EXEi

- over the Zenner barrier (Rs = 220 Ω)

T6 Tamb = -20 to +65⁰ C

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IIC (gases and vapors)
IIIC (dust)

Connection to Fire Alarm Central exclusively via device

SSU-24ExEi

Capacity and inductance by line

Negligble

Ex protection marking Zone 1/2 and Zone 21/22

II 2G Ex ib IIC T6 Gb
II 2D Ex ib IIIC T135C Db

IP protection

IP54

Color

Red

Weight

300 g.

Regular terminals 3 pcs; blue 3 x 1 in parallel

Cable up to 1,5 mm²

 

Data sheet

 

Certificate