Bourns Expands AC Surge Protector Device Line with Type 1 and Type 2 Models that Meet the Latest UL 1449 Standard

Bourns® Models 1251 and 1252
Download a high-res JPG of Bourns® Models 1251 and 1252

RIVERSIDE, Calif., October 22, 2015 – Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the expansion of the company’s AC surge protective device (SPD) line with two new heavy duty models that meet the latest Underwriters Laboratories’ (UL) 1449 safety and performance standard. Designated Bourns® Model 1251 and Model 1252, the two series are high-performance hybrid SPDs. Model 1251 is a Type 1 SPD designed to be installed on the line side of the main service disconnect, and Model 1252 is a Type 2 SPD engineered for the load side of the main service disconnect. Offering reliable transient protection for power distribution systems, both series support either 120/208 Three-Phase Wye or Single Phase 120/240 VAC circuits with the Model 1252 also featuring noise mitigation filtering capabilities.

The Bourns® Hybrid SPD (H-SPD) designs combine Metal Oxide Varistor (MOV) and Gas Discharge Tube (GDT) technologies to deliver fast-acting and low leakage performance over the life of the SPD. Rated at 50 kA on a single 8/20 µs surge. Along with other ruggedized features, Bourns’ latest H-SPDs are offered in NEMA 4X enclosures making them robust solutions for both indoor and outdoor installation. Wiring options include a 20 inch, 12 gauge wiring stub that exits either the right side or rear of the protector. In the unlikely event of a system or device failure, both series offer thermal disconnect safety features as well as visual LED and audio alarm indicators.

Pricing and Availability
The Bourns® H-SPD Model 1251 and 1252 series are RoHS compliant* and available now. As a pricing reference, the Bourns® Model 1251 and 1252 Series are list priced at $195.00 each. For more information, please see the Surge Protective Device product page.

About Bourns
Bourns, Inc. is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, non-critical life support medical, audio and various other market segments. Additional company and product information is available at

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Bourns® and the Bourns logo are registered trademarks of Bourns, Inc. and may be used only with the permission of Bourns and proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

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