Compact control unit with only 22.5 mm enclosure for the monitoring of sensing strips in dangerous applications. It is also suitable for use on motorised gates which, in line with the standard, must have relays conforming to safety category 3. A low current is transmitted from the control unit connectors (Z1 and Z2) through the sensing strip, and a closed circuit is formed via a resistor (8.2 kΩ). The control units outputs cut the power if anyone/anything presses the sensing strip and also following a short-circuit or open circuit.
Technical data
Supply voltage
24 V AC/DC, 230 V AC
Tolerance
-15 % to +10 %
Consumption (operation)
3 W
Relay outputs:
Safe
2 NO (single)
Signal
1 CO
Max. contact voltage
250 V AC/24 V DC
Max. contact current
4 A AC/2 A DC
Fuse outputs
4 A
Disconnection time
15 ms
Max. length of sensing strip
100 m
Max. cable length to the sensing strip
50 m (min. 0.5 m²)
Status indication
4xLED
Ingress protection class:
Terminal block
IP20
Enclosure
IP40
Ambient temperature
-20 °C to +55 °C
Installation
DIN rail
Mechanical service life
3x107
Safety category
3 in accordance with EN954-1
Standard
EN1760-2, ZH1/494
Conforming to
MD, LVD, EMC
Approvals
,
Technical characteristics
Depending on safety requirements
• Force guided contacts
• Internal/external redundancy
User benefits
Status indication
• Safety category 3 in accordance with EN954-1
• 2 NO and 1 CO output
Strip activated
• Contact load 4 A
Fault in the safety circuit
• LED status indication
Output activated
• Monitoring of external contactors
Output activated
Dimensions
(mm)
Connection
452.4 (One input)
462.4 (Two inputs)
1. One sensing strip. Manual reset. Monitoring of external contactors.
4. Two sensing strips. Manual reset. Monitoring of external contactors.
2. One sensing strip. Automatic reset. Monitoring of external contactors.
5. Two sensing strips. Automatic reset. Monitoring of external contactors.
3. Two sensing strips. Automatic reset. Monitoring of external contactors.
6. Several sensing strips. Automatic reset. Monitoring of external contactors.
Order number
Order no.
Description
3004.5246
Control unit 452.4, 2 NO+1 CO, one input, cat. 3, 24 V DC, 22.5 mm
3004.5240
Control unit 452.4, 2 NO+1 CO, one input, cat. 3, 230 V AC, 22.5 mm
3004.6246
Control unit 462.4, 2 NO+1 CO, 2 inputs, cat. 3, 24 V DC, 22.5 mm
3004.6240
Control unit 452.4, 2 NO+1 CO, 2 inputs, cat. 3, 230 V AC, 22.5 mm
3004.5242
Control unit 452.4, 2 NO+1 CO, 1 input, variable voltage
3004.6242
Control unit 462.4, 2 NO+1 CO, 2 inputs, variable voltage
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