Openers & Closers 51B21 Electric Strike 6-14V AC/DC Manual Switch Slip Mechanism

Product Overview

The Elektrozaczep Openers & Closers 6-14V AC/DC with switch and slip mechanism (51B21) is a narrow, radial, and symmetrical electric strike used in access control systems for commercial and residential doors. It operates with both AC and DC voltage inputs (6-14V), and features a built-in overvoltage protection circuit (TSV) to safeguard connected equipment and wiring. B2B buyers commonly specify this unit for security installations, entry doors, and intercom-linked access points requiring reliable electric door release capability.

The inclusion of a manual switch and slip mechanism differentiates this 51B21 model from standard electric strikes. This feature provides direct control over the lock release, offering enhanced convenience and security flexibility for building maintenance or facility managers. It is particularly suited for projects where managed access and mechanical override are required, such as apartment blocks, office entry points, or institutional facilities.

Key Features

• Universal voltage range 6-14V AC/DC ? compatible with most intercom and access control power sources


• Manual switch and slip mechanism ? enables direct lock release and access management


• Built-in TSV overvoltage protection ? minimizes equipment damage risk in unstable power environments


• Narrow, radial, symmetrical design ? fits slim-profile and standard European door frames


• Tongue cutout 13 mm ? accommodates common latch dimensions for seamless integration


• Side load capacity AC: 120 N at 12V ? supports secure holding on heavy doors


• Nominal resistance 8.5 Ohm ? optimized for efficient current regulation

Technical Specifications

• Voltage Range: 6-14V AC/DC


• Overvoltage Protection: TSV


• Manual Switch: Integrated


• Slip Mechanism: Yes


• Design: Narrow, radial, symmetrical


• Tongue Cutout: 13 mm


• Nominal Resistance: 8.5 Ohm


• Continuous Operation AC: <1 min


• Continuous Operation DC: <1 min


• Max Side Load AC (12V): 120 N


• Max Side Load DC (12V): 10 N


• Current Consumption AC: 0.50 A (6V), 1.00 A (12V), 1.16 A (14V)


• Current Consumption DC: 0.71 A (6V), 1.41 A (12V), 1.65 A (14V)

Applications

Used in access control and entry systems for apartment buildings, offices, commercial premises, and institutional facilities. Compatible with intercom-linked entry doors and managed-access points, particularly where a mechanical override or direct switch operation is required. Suitable for installation in narrow European door frames and projects demanding electric strikes with slip and manual switch functionality.

Packaging & Shipping

Standard export packaging. Unit includes electric strike body, integrated manual switch and slip mechanism, as well as mounting accessories. Installation manual is provided in each box.