Siemens 3VA9388-0LB10 Sentron Locking Device with Knee Lever Suitable

The Siemens 3VA9388-0LB10 Sentron locking device is a precision-engineered safety accessory developed to secure the toggle lever of Siemens Sentron Compact Circuit Breakers of the 3VA series. This device is compatible with sizes 100 to 630 A (3VA2-3, 3VA13/14, 3VA20-24) and locks the handle either in the ON or OFF position, providing essential protection against accidental or unauthorized switching. The device has been designed for rugged industrial environments and offers reliable mechanical locking without compromising user accessibility or visibility. With a compact form factor and simple clip-on installation, it integrates seamlessly into existing circuit breaker systems. The 3VA9388-0LB10 is perfectly suited for switchboards, power distribution, and industrial automation applications, enhancing operational safety and compliance with lockout-tagout regulations by enabling a padlock directly on the circuit breaker handle. It is lightweight yet durable, weighing only 68 g, and meets Siemens' high-quality standards for low-voltage power distribution accessories, contributing to safer and more reliable electrical installations.

Technical Details:

Brand: Siemens
Model Number: 3VA9388-0LB10
Compatible Circuit Breaker Models: 3VA2 (100-630 A), 3VA13/14, 3VA20-24 Compact Circuit Breakers
Functionality: Locks the toggle lever in the ON or OFF position
Handle Compatibility: Works with both front and rear-mounted toggle levers
Padlock Provision: Enables padlocking for safety lockout/tagout measures
Mounting: Clip-on mounting on the circuit breaker toggle handle
Material & Durability: Robust plastic and metal construction for industrial use
Lifecycle Status: Active product in the Siemens portfolio
Certifications & Compliance: RoHS-compliant; Meets Siemens accessory standards

Typical use cases: Increases safety during maintenance, servicing or emergency shutdown of circuit breakers, which are widely used in industrial and commercial switchgear

Note:

For detailed technical data and processing instructions, we strongly recommend consulting the original data sheets or contacting the manufacturer directly.

Find more items - new and used - in our shop!
International shipping costs on request!