Lamar B-00341-1 TIME DELAY SWITCH, 28V

The **Lamar B-00341-1 Time Delay Switch** (P/N **B-00341-1**) is a 28V aircraft electrical control component designed to operate a warning horn through a pulsed output circuit. The unit provides an on-off pulsed ground connection to the warning horn circuit, operating at a rate of 2.5 to 3.25 pulses per second. When the control switch closes, the warning horn activates immediately. The timing function incorporates two periods: a 1.5-second initial period and a 4.0-second extended warning period, depending on the control switch operation. The B-00341-1 is listed for selected Piper PA-31 and PA-42 aircraft and is associated with part numbers **588-083** and **PS 50125-2**. --- ## Applications Suitable for applicable: - **Piper PA-31 Series** – Warning horn timing control applications - **Piper PA-42 Series** – Warning horn timing control applications - **28V Aircraft Electrical Systems** – Pulsed warning horn control - **Aircraft Warning Systems** – Timed audible warning indication - **Aircraft Electrical System Maintenance** – Replacement of applicable time delay switches --- ## Why CJ Aerospace? CJ Aerospace supplies aircraft electrical components, time delay switches, voltage regulators and replacement electrical system parts for a range of aviation applications. Our team can assist with product information, availability and part-number identification. - 🇦🇺 **Australian-owned and operated** - 📦 **Aircraft electrical components and replacement parts** - 🔧 **Technical assistance with part identification and compatibility** - ✈️ **Support for aircraft owners, operators and aviation professionals** > ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help identifying the correct time delay switch or compatible aircraft electrical component? Contact our team for assistance.

- **28V Electrical System Compatibility** – Designed for applicable 28V aircraft electrical systems - **Pulsed Warning Horn Output** – Provides an on-off pulsed ground connection for warning horn operation - **Pulsing Rate** – Operates at 2.5 to 3.25 pulses per second - **Dual Timing Periods** – Features 1.5-second and 4.0-second timing functions - **Immediate Warning Activation** – Activates the warning horn when the control switch closes - **Extended Warning Function** – Maintains the warning for an additional period under specified control conditions - **Low Output Load** – Rated for 0.3A at 28V - **Piper Aircraft Applications** – Listed for selected PA-31 and PA-42 aircraft models