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GELBAU
GELBAU

Gelbau - Control unit B412.0

  • Compact enclosure, only 22.5 mm
  • 1 NO output
  • Automatic reset
  • Safety category 1 in accordance with EN954-1

Product description

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.

Technical data

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

Ce-marking, TÜV



Technical characteristics

Depending on safety requirements

 

• Force guided contacts

 

• Internal/external redundancy

 

 

 

User benefits

Status indication

 

• Safety category 1 in accordance with EN954-1

Red colormark

Strip activated

• Small installation dimensions

Yellow colormark

Fault in the safety circuit

• LED status indication

Green colormark

Output activated

 

Dimensions

(mm)

Size, control unit B412.0

 

Connection

Engagement, one terminal strap, automatic resetting

Engagement, two terminal straps, automatic resetting

1.
One sensing strip.
Automatic reset.

2.
Two sensing strips.
Automatic reset.

 

Order number

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

 

Part numbers

Parts Price Supply voltage
24 V DC
230 V AC

Part

Photo of control unit B412.0

30B4.1206
Cat.1 Resistance Evaluator 24Vdc 1x N/O Contact

Technical data

Approvals CE, TÜV NORD
Cable length to clip list max 50 m (min. 0,5 m2)
Contact current max 4 A AC/DC
Contact voltage max 250 V AC/24 V DC
Disconnection 10 ms
Fuse output 4 A
In compliance with EMC, LVD, MD
IP class connection IP20
IP class of housing IP40
Mounting DIN rail
PL c enl.SS-EN ISO 13849-1
Power consumption 3 W
Supply voltage 24 V DC
Temperature ambient from -20 °C
Temperature ambient to 55 °C
Terminal strip length max 100 m
Tolerance max 10 %
Tolerance min -15 %

Measurements and connections

Resource

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