• Guard locking with guard lock monitoring
• Emergency stop according to ISO 13850, illuminated
• 3 illuminated pushbuttons
• Including adhesive labels
• Connection via 7/8 and M12 plug
• Pre-assembled on mounting plates
• Integrated Profinet RT switch
• Multicode

Profinet connection 7/8 plugs according to ANSI/B93.55M-1981 and M12 plugs (d-coded) according to IEC 61076-2-101 Profinet RT switch Point-to-point topology network structure due to integrated RT switch. Flexible usage as interlocking or guard locking By means of the corresponding evaluation of the safe device data by the control system, usage can be either as interlocking or guard locking (with or without monitoring). Illuminated emergency stop Emergency stop with illumination that can be controlled as required. Dimension drawing MGB: The MGB-System in use MGB: MGB Impact test MGB: Mounting left door, with escape release Mounting left door, without escape release Mounting right door, without escape release MGB: Deactivating guard lock monitor MGB: Activating guard lock monitor MGB: Activating release monitoring MGB: Change color-lens push button Dimension drawing Technical data Locking module MGB-L1B-PNC-L-121867 (Order no. 121867) Mechanical values and environment

Housing material	Reinforced plastic, die-cast zinc nickel-plated, stainless steel
Weight
Net	3,1 kg
Ambient temperature
At UB = 24V DC	-20 ... 55 °C
Degree of protection	IP54
Resilience to vibration	In accordance with EN 60947-5-3
Mechanical life	1 x 106
In case of use as door stop, and 1 Joule impact energy	0,1 x 106
Installation orientation	Door hinge DIN left
Reaction time
Bolt position	max.550 ms Switch-off time
Emergency stop / machine stop	max.250 ms Switch-off time
Door position	max.550 ms Switch-off time
Guard locking	max.550 ms Switch-off time
Switching frequency	0,25 Hz
Connection	7/8 Power
Acc. to IEC 61076-2-101, Profinet I/O cable, at least cat. 5e	M12 D-coded, screened
	7/8 Power
Acc. to IEC 61076-2-101, Profinet I/O cable, at least cat. 5e	M12 D-coded, screened
Guard locking principle	Closed-circuit current principle
Locking force FZh	2000 N

Electrical connection ratings

Current consumption	max.500 mA
Rated insulation voltage Ui	75 V
Rated impulse withstand voltage Uimp	0,5 kV
Maximum feed-in current in the connection block
X1, X2	max.4000 mA
EMC protection requirements	In accordance with EN 61000-4 and EN 61326-3-1
Degree of contamination (external, according to EN 60947-1)	3
Connecting cable
Ethernet	Profinet I/O cable, at least cat. 5e
Safety class	III
Transponder coding	Multicode
	Power supply X1
Operating voltage DC
L1	24 V DC -15% ... 10%
Auxiliary voltage DC
L2	24 V DC -15% ... +10%
Fusing
external	min.1 A Slow blow
	Power supply X2
Operating voltage DC
L1	24 V DC -15% ... 10%
Auxiliary voltage DC
L2	24 V DC -15% ... +10%

Work area

Assured switch-off distance Sar

max.65 mm

Interface, bus

Data interface
Data protocol
Bus protocol	Profinet (IEC 61158 type 10)
Safety protocol	Profisafe (IEC 61784-3-3)

Other

Additional feature	Incl. cover set ID. No. 120344
Product version number	V3.30.10
Slide-in label	3 pc. without marking

Reliability values according to EN ISO 13849-1

	Monitoring of guard locking and the safety guard position
Category	4
Performance Level	PL e
PFHD	4.07 x 10-8
Diagnostic Coverage (DC)	99
	Control of the guard locking
Category	4
Performance Level	PL e
PFHD	3.91 x 10-8
	Emergency stop
B10D
Emergency stop	0.1 x 106
	Emergency-stop evaluation
Category	4
Performance Level	PL e
PFHD	4.1 x 10-8
Safety Integrity Level	SIL 3 (EN 62061:2005)
Mission time	20

Handle module MGB-H-AA1A6-L-111839 (Order no. 111839) Mechanical values and environment

Housing material	Reinforced plastic, die-cast zinc nickel-plated, stainless steel
Weight
Net	1,00 kg
Ambient temperature	-20 ... 55 °C
Degree of protection	IP65
Installation orientation	Door hinge DIN left

Other

Additional feature	With mounting plate and automatic lockout mechanism
Product version number	V3.0.0

Components 121867 Locking module MGB-L1B-PNC-L-121867

• Guard locking with guard lock monitoring
• Emergency stop according to ISO 13850, illuminated
• 3 illuminated pushbuttons
• Including adhesive labels
• Connection via 7/8 and M12 plug
• Pre-assembled on mounting plates
• Integrated Profinet RT switch
• Multicode

111839 Handle module MGB-H-AA1A6-L-111839

• Intelligent bolt tongue
• Fold-out lockout mechanism
• Second automatically extending lockout mechanism
• Door handle
• Mounting plate

The 121868 industrial spare part is crafted with precision to ensure your machinery operates at peak efficiency. Engineered for industrial products in demanding environments, it guarantees reduced downtime and increased productivity. 121868 components are built to withstand the toughest industrial conditions, making them essential for keeping your operations in the USA running smoothly.

Euchner offers a wide selection of industrial spare parts for different applications. Whether you’re performing maintenance or replacing worn-out parts, 121868 provides long-lasting, reliable solutions. Order your 121868 spare part today for fast delivery across the USA and keep your equipment performing at its best.

For industrial components and spare parts, trust Euchner to supply top-tier products that enhance the lifespan and efficiency of your machinery.

• Delivery of spare parts and industrial equipment throughout the USA by Fedex transport company.
• Flexible payment system accepting bank transfers, MasterCard, VISA, PayPall, App Pay, Google Pay.
• Directly from stock and on order.