Product Description
The Euchner MGB-L1B-E1A-L-128326 (Order No. 128326) is a Multifunctional Gate Box (MGB) locking module designed for safety door protection on industrial machines and installations. It features guard locking by spring force (closed-circuit current principle) with integrated guard lock monitoring, an illuminated emergency stop per ISO 13850, and three illuminated pushbuttons, all communicating via EtherNet/IP with CIP Safety protocol. The unit is pre-assembled on a mounting plate with M12 plug connections and achieves the highest safety ratings of Category 4 / Performance Level e (PLe) per EN ISO 13849-1 and SIL 3 per EN IEC 62061.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Euchner |
| Model / Part Number | MGB-L1B-E1A-L-128326 |
| Official Euchner Designation | MGB-L1B-EIA-L-128326 (Order No. 128326) |
| Product Family | Multifunctional Gate Box (MGB) EtherNet/IP |
| Product Type | Safety Interlock / Guard Locking Module |
| Guard Locking Principle | Closed-circuit current principle (spring force locked, solenoid unlocks) |
| Operating Voltage (L1) | 24 V DC -15% / +10% (reverse polarity protected, PELV, regulated, ripple <5%) |
| Auxiliary Voltage (L2) | 24 V DC -15% / +10% (not required for MGB system) |
| Current Consumption | Max. 500 mA |
| Max. Feed-in Current (X1, X2) | Max. 4000 mA |
| External Fuse | Min. 1 A slow blow |
| Rated Insulation Voltage (Ui) | 75 V |
| Rated Impulse Voltage (Uimp) | 0.5 kV |
| Safety Class | III |
| Communication Protocol | EtherNet/IP with CIP Safety |
| Network Connection (X3, X4) | M12, D-coded, screened (EtherNet/IP, min. Cat. 5e) |
| Power Connection (X1, X2) | M12 Power, A-coded |
| Installation Orientation | Door hinge DIN left (L variant) |
| Number of Pushbuttons | 3 illuminated pushbuttons (1NO each) |
| Emergency Stop | Illuminated, per ISO 13850 (2PD switching element) |
| Transponder Coding | Unicode |
| Safety Category | Category 4 |
| Performance Level | PL e (EN ISO 13849-1) |
| Safety Integrity Level | SIL 3 (EN 62061:2005) |
| PFH_D (Guard Locking Control) | 4.91 x 10⁻⁹ |
| PFH_D (Emergency Stop) | 3.05 x 10⁻⁹ |
| Mission Time | 20 years |
| Locking Force (F_Zh) | 2000 N |
| Secured Switch-off Distance (s_ar) | 20 mm (sliding door only, with deactivated guard lock monitoring) |
| Degree of Protection | IP54 |
| Ambient Temperature | -20 ... +55 °C (at 24 V DC) |
| Degree of Contamination | 3 (per EN 60947-1) |
| Switching Frequency | 0.25 Hz |
| Housing Material | Fiber glass reinforced plastic; die-cast zinc, nickel-plated; stainless steel |
| EMC Standard | EN 61000-4, EN 61326-3-1 |
| Mounting | Pre-assembled on mounting plate |
| Gross Weight | 3.628 kg |
We warranty all items for 30 days from date of purchase.