effeff 37RR-E91 Electric Strike NO Reversible 12V DC with Monitoring Sensor 3500N

Product Overview

The effeff 37RR-E91 is a reversible electric strike with integrated door monitoring sensor, designed for use in access control installations requiring secure entry and activity tracking. Suitable for commercial and institutional buildings, it accommodates doors where security and monitoring are critical, and operates at 12V DC. The strike achieves mechanical resistance of 3500N and works reliably in conditions ranging from -15°C to +40°C.

A distinguishing feature is its three-position, volt-free monitoring contact (NO/COM/NC), enabling precise status reporting of door activity to access control and alarm systems. This advanced monitoring capability eliminates uncertainty in building security operations and simplifies compliance documentation. Particularly suited for security integrators and bulk procurement for electronic access control upgrades in offices, hospitals, or educational facilities.

Key Features

• Reversible NO function ? door is unlocked when power is removed, providing fail-safe operation


• Integrated monitoring sensor ? three-position NO/COM/NC contact for remote status reporting


• FaFix adjustable latch ? 3mm adjustment range improves installation flexibility


• Mechanical resistance 3500N ? supports high-security environments


• Working voltage 12V DC ? standard for professional access control systems


• Vertical or horizontal installation ? accommodates varied door frame configurations


• Symmetrical body ? fits left or right-handed doors; compatible with 52mm screw plate spacing

Technical Specifications

• Operating Voltage: 12V DC


• Voltage Tolerance: +/- 1V


• Current Draw at 12V DC: 235mA


• Nominal Resistance: 51 Ohm


• Mechanical Resistance: 3500N (350kg)


• Adjustable Latch: 3mm


• Monitoring Contact: NO/COM/NC, volt-free, three-position


• Maximum Latch Push Force: ~1kg


• Dimensions: 82.8 x 20.5 x 28mm (H x W x D)


• Operating Temperature: -15°C to +40°C


• Mounting Orientation: Vertical or horizontal


• Compatible Plate Spacing: 52mm screw distance

Applications

Optimized for commercial access control systems, this strike is used in entry doors of office buildings, hospitals, and educational institutions where door status monitoring is required. Appropriate for fire-rated and security doors, as well as renovations or upgrades of electronically controlled entries. Ideal for bulk integration in projects demanding centralized monitoring and fail-safe egress.

Packaging & Shipping

Standard export packaging. Each unit includes the electric strike body, monitoring sensor, mounting accessories, and installation manual.