OEM SB3H Stainless Steel Exit Button NO/NC/COM

OEM SB3H Egress Switch

The OEM SB3H Exit Button functions as a primary egress point for secured environments. It interfaces directly with electronic locking hardware to allow manual passage. This hardware utilizes a brushed stainless steel plate for high durability. The design fits standard square backboxes commonly found in professional installations. It provides a tactile response when pressed to confirm operation.

Security professionals use this component to manage exit flow in office buildings. The internal switch supports a variety of voltage inputs up to 36VDC. This versatility allows the unit to work with diverse access control panels. It maintains structural integrity under frequent daily use. The simple mechanical design reduces the risk of electronic failure.

The faceplate features a laser-etched label for clear identification. This marking remains visible even after years of environmental exposure. The mounting holes align with standard square pattern electrical boxes. This alignment simplifies the retrofit process in existing structures. Each unit undergoes rigorous testing to ensure it meets mechanical cycle standards.

The wiring terminals utilize screw-down connectors for secure attachment. This prevents loose connections caused by vibration or thermal expansion. The low-profile design minimizes protrusion from the wall surface. This reduces the chance of accidental damage from passing equipment or carts. The unit operates efficiently across a broad temperature spectrum.

The contact rating of 3A @ 36VDC provides a significant safety margin for standard door strikes. Most electronic strikes pull less than 500mA. This overhead ensures the internal contacts do not weld shut during inductive kickback. Using an external diode or varistor further protects the switch contacts.

The Normally Open configuration remains open until a user presses the button. This setup typically sends a signal to an access control logic board. The board then processes the request and releases the lock. The Normally Closed configuration maintains a continuous circuit. Pressing the button breaks this circuit immediately. This method provides a hardware-level override for fail-safe locks.

The Common terminal serves as the reference point for both wiring types. This three-terminal architecture supports complex interlocking systems. It also allows for dual-path signaling if required by specific local fire codes. The stainless steel material resists chemical cleaners used in medical facilities. Consequently, the device maintains its aesthetic and functional properties in sterile environments.

The mechanical spring mechanism provides consistent tension over its service life. This prevents the button from sticking in the depressed position. The internal switch assembly is sealed to prevent dust ingress. This protection is vital for installations in warehouses or manufacturing plants. It ensures the electrical path remains clean and conductive.

Key Features

• Stainless Steel Construction
  The 304-grade brushed metal faceplate resists corrosion and physical impact in high-traffic areas.

• Triple Contact Output

  • Normally Open (NO) for trigger-based logic
  • Normally Closed (NC) for direct power interruption
  • Common (COM) for universal circuit integration

• High Mechanical Endurance
  The internal switch assembly is rated for 500,000 cycles of operation.

• Standardized Dimensions
  The 86mm x 86mm footprint ensures compatibility with global standard electrical backboxes.

Specifications

What’s in the Box

• OEM SB3H Egress Button

• Mounting Screw Kit

• Wiring Instruction Guide

Why Choose SB3H

• The brushed stainless steel finish maintains a professional appearance in commercial lobbies.

• Support for both NO and NC circuits allows for integration with any electronic lock type.

• High contact amperage prevents switch failure during voltage spikes from inductive loads.

• The 500,000-cycle rating ensures long-term reliability in high-density employment centers.