mcr FID B
single-plane fire dampers
“MERCOR” SA
– The company reserves the right to modify and change the document. Version FID B 21.07.30.02
15/22
Sizing (apparent power)
5 VA
6 VA
6 VA
7 VA
Appliance class
III
II
III
II
Ingress protection rating
IP 54
IP 54
IP 54
IP 54
Auxiliary circuit breaker:
2xSPDT
3A AC 250V
2xSPDT
3A AC 250V
2xSPDT
3A, AC 250V
2xSPDT
3A, AC 250V
- activation position [degrees]
5°, 80°
5°, 80°
5°, 80°
5°, 80°
Torque:
- motor
25 Nm
25 Nm
15 Nm
15 Nm
Cable connection:
- motor (L = 0.9 m)
3x0,75 mm2
3x0,75 mm2
3x0,75 mm2
3x0,75 mm2
- auxiliary circuit breaker
6x0,75 mm2
6x0,75 mm2
6x0,75 mm2
6x0,75 mm2
Movement time: (0-90°)
60s
60 s
30 s
30 s
- motor
Operating temperature range
- 30 ...+55°C
- 30 ...+55°C
- 30 ...+55°C
- 30 ...+55°C
Sound pressure level:
- motor
max 58 dB (A)
max 58 dB (A)
max 58 dB (A)
max 58 dB (A)
Technical data
BFL24, BFL24-T
BFL230, BFL230-T
BFN24, BFN24-T
BFN230, BFN230-T
Power supply
AC 24 V 50/60 Hz
DC 24 V
AC 220–240 V 50/60 Hz
AC 24 V 50/60 Hz
DC 24 V
AC 220-240V 50/60 Hz
Power demand:
– when putting the spring
under tension
– when in standby
2.5 W
0.7 W
3,5 W
1.1 W
4 W
1.4 W
5 W
2.1 W
Apparent power
4 VA
6.5 VA
6 VA
10 VA
Protection class
III
II
III
II
IP rating
IP 54
IP 54
IP 54
IP 54
auxiliary switch:
– activation point [degrees]
2 x PDT
3(0.5) A AC 250V
2 x PDT
3(0.5) A AC
250V
2 x SPDT
3(0.5) A, 250 V
2 x SPDT
3(0.5) A, 250 V
5
, 80
5
, 80
5
, 80
5
, 80
Torque:
- motor
- spring
4 Nm
3 Nm
4 Nm
3 Nm
9 Nm
7 Nm
9 Nm
7 Nm
Wire connection:
– motor (length: 0.9 m)
– auxiliary switch
2 x 0.75 mm
2
6 x 0.75 mm
2
2 x 0.75 mm
2
6 x 0.75 mm
2
2 x 0.75 mm
2
6 x 0.75 mm
2
2 x 0.75 mm
2
6 x 0.75 mm
2
Movement time (0–90°):
- motor
- return spring
60 s
≈ 20 s
60
≈ 20 s
60 s
≈
20 s
60 s
≈
20 s
Working temperature range
−30 ...+55°C
−30 ...+55°C
−30 ...+55°C
−30 ...+55°C
Sound pressure level:
- motor
- spring
max 43 dB (A)
~ 62 dB (A)
max 43 dB
(A)
~ 62 dB (A)
max 55 dB (A)
~ 67 dB (A)
max 55 dB (A)
~ 67 dB (A)
Technical specifications
MLF 24T
MLF 230T
Power supply
AC 24V 50/60Hz DC 24 V
AC 220-240V 50/60 Hz
Power demand:
- for spring tensioning
5 W
5 W
- for spring holding
2.5 W
3 W
Sizing (apparent power)
7 VA
7 VA
Appliance class
III
II
Ingress protection rating
IP 54
IP 54
Auxiliary circuit breaker:
2xSPDT
6 (1.5)A AC 250V
2xSPDT
6 (1.5)A AC 250V
- activation position [degrees]
5
, 80
5
, 80
Torque:
- motor
4 Nm
4 Nm
- spring
4 Nm
4 Nm
Cable connection:
- motor (L = 0.9 m)
2x0.75 mm
2
2x0.75 mm
2
- auxiliary circuit breaker
6x0.75 mm
2
6x0.75 mm
2
Movement time: (0-90°)
- motor
40-75 s
40-75 s
- return spring
20s
20s
Operating temperature range
- 30 ...+50°C
- 30 ...+50°C
Sound pressure level:
- motor
max. 45 dB (A)
max. 45 dB (A)
- spring
~ 62 dB (A)
~ 62 dB (A)