Shutter, electric
BK 31
Manufacturer: MAICO
Electric shutter with bimetal cap for ventilation channels, DN 315
Product data sheet
Characteristic curve
Dimensioned drawing
BK 31 - Dimensioned drawing [mm]
- Cable entry
B: 320 mm
C: 380 mm
D: 135,5 mm
Technical data
BK 31 - Technical data
Accessories / Accessories of
BK 31 - Accessories / Accessories of
General accessories
| Product type | Name | Art. No. | Price*(EUR) | Action |
|---|---|---|---|---|
| Axial wall-mounted fan | EN 31 | 0081.0309 | on request | |
| Axial wall-mounted fan | ENR 31 | 0081.0318 | on request |
is a special accessory of
| Product type | Name | Art. No. | Price*(EUR) | Action |
|---|---|---|---|---|
| Wall-mounted fan | EN 31 No longer available for delivery | 0081.0303 | on request | |
| Wall-mounted fan | ENR 31 No longer available for delivery | 0081.0306 | on request |
Product description
Productdescription
short description
Electric shutter with bimetal cap for ventilation channels, DN 315Product description
- Electrical shutter for weather protection and prevention of cold air entry when fan is switched off.
- MK with gear motor: Rated power 3 W, nominal current 0.015 A.
- BK with bimetal cap: Rated power 25 W, rated current 0.01 A, start-up current 1.8 A - 1s. Speed control only with STU 2,5 / ST 2,5 speed controller.
- Installation in accordance with protection class II (without protective-conductor terminal).
- Opens and closes when the fan is switched on and off.
- MK needs 4-core mains cable.
- BK needs 3-core mains cable.
- Special models with limit switch can be supplied on request. Limit switch is activated when the shutter is completely open.
Wiring diagram
BK 31 - Wiring diagram
ENR 20, ENR 25, ENR 31 with on/off switch and three-position switch
S1 - On / Off
S2 - Switching between air extraction and ventilation
Terminal 5 - Air extraction
Terminal 6 - Ventilation
* - duct only for MK... shutter
BK with EN... wall fan, without speed control
S1 fan On/Off, to be supplied by the customer
BK with EN... wall fan, without speed control
S1 fan On/Off, to be supplied by the customer
ENR 20, ENR 25, ENR 31 with W 1, WU 1 reversing switch
W 1 - Reversing switch (air extraction or ventilation), surface-mounted
WU 1 - Reversing switch (air extraction or ventilation), recessed-mounted
* - duct only for MK... shutter
BK with ENR... fan and STW 2,5 speed controller for surface installation
FS6 - Step switch: 2 speeds, ventilation / air extraction (FS 6 cannot be used for ENR 31)
FS7 - Step switch: Ventilation / air extraction
BK with ENR... fan and STW 2,5 speed controller for surface installation
FS6 - Step switch: 2 speeds, ventilation / air extraction (FS 6 cannot be used for ENR 31)
FS7 - Step switch: Ventilation / air extraction
ENR 20, ENR 25, ENR 31 with TRE 5-step transformer and three-position switch
TRE - 5-step transformer (on/off, 5-speed)
S1 - Reversing switch (air extraction or ventilation)
* - duct only for MK... shutter
ENR 20, ENR 25, ENR 31 with TRE..S 5-step transformer and ESS 20 5-step switch.
TRE - 5-step transformer, control cabinet installation
ESS 20 - 5-step switch (on/off, 5-speed)
S1 - Reversing switch (air extraction or ventilation)
* - duct only for MK... shutter
Downloads / Videos
BK 31 - Downloads / Videos
Predecessor - successor
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