GELBAU
Small control unit for the monitoring of sensing strips in less dangerous applications. It fulfils safety category 1 which means that it may only be used in applications in which the risk of injury is only for slight, normally reversible injuries. If there is any doubt select one of the control units on the following pages. A low current is transmitted from the unit's connectors (Z1 & Z2) through the sensing strip, and a closed circuit is formed via a resistor (8.2 kΩ). The control unit output cuts the power if anyone/anything presses the sensing strip and also following a short-circuit or open circuit.
Supply voltage | 24 V AC/DC, 230 V AC | |
Tolerance | -15 % to +10 % | |
Consumption (operation) | 3 W | |
Relay outputs: | Safe | 1 NO (single) |
Max. contact voltage | 250 V AC/24 V DC | |
Max. contact current | 4 A AC/DC | |
Fuse outputs | 4 A | |
Disconnection time | 10 ms | |
Max. length of sensing strip | 100 m | |
Max. cable length to the sensing strip | 50 m (min. 0.5 m2) | |
Status indication | 3xLED | |
Ingress protection class: | Terminal block | IP20 |
Enclosure | IP40 | |
Ambient temperature | -20 °C to +55 °C | |
Installation | DIN rail | |
Mechanical service life | 3x107 | |
Safety category | 1 in accordance with EN954-1 | |
Standard | EN1760-2 | |
Conforming to | MD, LVD, EMC | |
Approvals |
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Technical characteristics
Depending on safety requirements |
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• Force guided contacts |
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• Internal/external redundancy |
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User benefits | Status indication |
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• Safety category 1 in accordance with EN954-1 |
| Strip activated |
• Small installation dimensions |
| Fault in the safety circuit |
• LED status indication |
| Output activated |
(mm)
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1. | 2. |
Order no. | Description |
30B4.1200 | Control unit, resistor, 1 NO, cat. 1, 230 V AC |
30B4.1201 | Control unit, resistor, 1NO, cat. 1, 115 V AC |
30B4.1204 | Control unit, resistor, 1 NO, cat. 1, 24 V AC |
30B4.1206 | Control unit, resistor, 1 NO, cat. 1, 24 V DC |
