B-COMMAND enabling switch ZA2G4-01 with rubber cap in grey 2 CO contact 4 auxiliary contacts dead man's switch
- 3-stufige Schaltung (Aus-Ein-Aus), redundante Kontaktkonfiguration erfüllt Sicherheitskategorie 4
- Schutzart IP65 frontseitig (mit Gummikappe / Grau) silikonfrei
115,55 €
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Product information "B-COMMAND enabling switch ZA2G4-01 with rubber cap in grey 2 CO contact 4 auxiliary contacts dead man's switch"
Regulations and approvals:
ISO12100, ISO11161, ISO10218,
IEC60204-1, IEC60947-5-1,
EN292, EN775, prEN11161,
UL508, CSA C22.2 No. 14,
JIS C8201-5-1, ANSI/RIA R15.06
- Ambient temperature: -25 to +60 °C (no icing)
- Storage temperature: -40 to +80 °C (no icing)
- Relative humidity: 45 to 85% (no condensation)
- Pollution degree: 2 (contact side)
3 (actuator side)
- Contact resistance: 50 m Ω (initial value)
- Insulation resistance: 100 M Ω min. (Megger DC 500 V)
- Dielectric strength: 2.5 kV
- Switching frequency: 1,200 switchings/hour
- Mechanical life: Stage 1-2-1: 10⁶ switching operations min.
Stage 1-2-3-1: 10⁵ switching min.
- Electrical life: 10⁵ operations
- Shock resistance: operation 100 m/s2
Destroy it. 1,000 m/s2
- Vibration resistance: operation 5 to 55 Hz, amplitude 0.5 mm min.
Destruction. 16.7 Hz, amplitude 1.5 mm min.
- Connection type: soldering
- Connection cross-section: 0.5 mm² max. / core
- Max. Soldering temperature: 260 °C, 3 seconds max.
- Tensile strength of connection: 20 N min.
- Recommended screw torque: M3 / 0.5 to 0.8 Nm
- Protection class: IP40 (IEC 60529) / IP65
- Short-circuit resistance: 50 A (250 V)
- Recommended short-circuit fuse: 250 V, 10 A fast (IEC 60127-1)
- Weight: with rubber cap: approx. 30 g
without rubber cap: approx. 26 g
- Contact opening force: 60 N min.
- Max. permissible actuating force: 500 N min.
- Rated voltage 250 V AC / DC
- Rated operational current 3.0 A
- Rated data 30 V / 125 V / 250 V
working contacts
- Resistive load (AC 12) - / 1.0 A / 0.5 A
- Inductive load (AC 15) - / 0,7 A / 0,5 A
- Resistive load (DC 12) 1.0 A / 0.2 A / -
- Inductive load (DC 13) 0.7 A / 0.1 A / -
- Contact configuration 2 changeover contacts
auxiliary contacts
- Resistive load (AC 12) - / 2.0 A / 1.0 A
- Inductive load (AC 15) - / 1.0 A / 0.5 A
- Resistive load (DC 12) 2,0 A / 0,4 A / 0,2 A
- Inductive load (DC 13) 1.0 A / 0.22 A / 0.1 A
- Contact configuration 0-4 NC contact
Min. load: 3 V AC / DC and 5 mA (guide value)
With the aid of an enabling switch, the operator can prevent damage to persons and machines if a machine behaves unexpectedly. In panic, people react either by pressing hard or by releasing the button completely: both reliably switch off the machine.
The B-COMMAND confirmation buttons have redundant switching contacts. The deviation of the switching states of both contacts can be detected as a fault by means of a suitable circuit and the machine can be put out of operation despite possibly damaged contacts.
For optimum operating convenience, the actuating force from position 2 to 3 for the centric and eccentric pressure is absolutely identical: even switching with just one finger at the outer end is reliably possible.
Why 3-stage enabling switches are so important
When it comes to personal protection in the man-machine area, a distinction is made between normal and special operation. In the case of a robot, for example, normal operation stands for automatic
Functions for which the operational protective measures are effective.
Special operation, on the other hand, includes setup, programming, process changeover and troubleshooting as well as maintenance. These operations must be carried out in such a way that the effect of the normal
protective devices must be lifted. Additional measures must be taken to ensure personal protection in this operating mode as well. These also include deadman warners.
According to international standards, an emergency stop button must be designed with 3 stages (OFF ON OFF). From an ergonomic point of view, an operator can leave the enabling switch in its position in a terrifying situation.
Either get your hand off or he'll push it through tight. When it is released, both the 2-stage and 3-stage buttons stop the machine. If, however, it is pressed firmly, only the 3-stage button guarantees the switch-off and thus avoids the danger of injury to the operator. A further safety requirement for a safety switch is that the contacts are not closed during the reset from stage 3 to 1 in stage 2 so that the machine is not activated for a short time.
The B-COMMAND dead man detectors have the following advantages:
- Exemplary ergonomics
- Low weight
- Light, stable pressure point
- 2 working circuits (redundancy)
- Auxiliary contacts for monitor functions
- Difficult to manipulate
3-stage functionality
The main task of the confirmation buttons is to prevent personal injury and damage to property in the event of uncontrolled or unforeseeable machine movements.
In panic, people react either by pressing hard or by releasing the button completely: both reliably switch off the machine.
Highest production quality and reliability
The enabling switches have redundant switching contacts and redundant actuators. The deviation of the switching states of both contacts can be detected as a fault by means of a suitable circuit and the machine can be put out of operation despite possibly damaged contacts. For optimum operating comfort, the actuating force from position 2 to 3 for the centric and eccentric pressure is absolutely identical.
Even switching with only one finger at the outer end is reliably possible. In addition, the necessary operating force changes only marginally even after the 10,000th actuation.
diese vertr. d. d. Geschäftsführer Jan Schwonbeck
Grützmühlenweg 46
22339 Hamburg
Deutschland
+49 (0)40538092888
info@intratec-shop.de
