George Risk Industries Inc. 4561 Mercury Tilt Switch

Product Description

The GEORGE RISK INDUSTRIES INC. 4561 is a mercury tilt switch designed for special application contact uses. Mercury tilt switches operate by completing or breaking an electrical circuit when the unit is tilted past a set angle, relying on the movement of liquid mercury inside a sealed capsule to make or break contact. This part is sold as a single unit and is intended for installation by qualified electricians or controls technicians working on systems that require position-sensing or tilt-detection switching logic. Note that this product is not available for sale in California due to applicable state regulations governing mercury-containing devices.

Mercury tilt switches are used in a range of special application scenarios including safety interlocks, position detection, and tilt-triggered control circuits in HVAC, electrical, and industrial control systems. This switch is suited for low-voltage control circuits where a reliable, position-dependent contact closure is required. Installation is limited to applications and jurisdictions where mercury-containing switching devices are permitted.

Key Features

• Position-sensing mercury tilt switch for special application contact circuits
• Completes or breaks a circuit based on physical tilt angle of the switch body
• Sealed mercury capsule provides consistent contact operation
• Sold as a single unit (each)
• Not for sale in California — confirm local and state regulations before ordering

Compatibility

Designed as an OEM-style replacement or direct substitute for special application mercury tilt switch contacts in low-voltage control and safety interlock circuits.

Installation Notes

Installation should be performed by a licensed electrician or qualified controls technician in accordance with NEC requirements and all applicable local codes. De-energize the circuit completely before removing or installing this switch. Mercury-containing devices must be handled, installed, and disposed of in accordance with federal, state, and local environmental regulations. Do not install in jurisdictions where mercury-containing switching devices are prohibited.