Serial Lock-Out Relay provides remote trip and reset.

Press Release Summary:

Available in 3, 5, or 8 decks, Series 24 addressable network device delivers trip-coil monitoring, IRIG-B sequence-of-events reporting, system battery monitoring, self-diagnostic reporting, and 2 auxiliary monitoring inputs. Unit frees up RTU points, minimizing point-to-point wiring and facilitating load-shedding. Equipped with manual reset handle for Lock-Out Relay local control, SLOR is rated 30 A/600 V continuous with circuit-breaker coil providing ability of 95 A/125 Vdc.

Original Press Release:

New Serial Lock-Out Relay Keeps A Handle on System Protection

WEYMOUTH, MA - The new Electroswitch Series 24 Serial Lock-Out Relay (SLOR) is an addressable network device (certified DNP 3.0 protocol) that provides remote trip and reset capability, trip-coil monitoring, IRIG-B sequence-of-events reporting, system battery monitoring, self-diagnostic reporting and two auxiliary monitoring inputs available for customer use. A manual reset handle provides standard Lock-Out Relay local control. The SLOR provides value by freeing up RTU (Remote Terminal Unit) points; reducing point-to-point wiring; simplifying load-shedding applications; and minimizing testing, commissioning and training. The SLOR combines the functions of multiple devices, allowing the elimination of separate equipment such as discrete battery monitors, a local/remote control switch, coil-monitoring lamps and additional reclosing relays. The SLOR's standard Smart Nameplate provides a traditional mechanical target indicating trip/reset status as well as replaceable indicator LEDs for trip-coil monitoring, trip signal presence, serial-bus transmit/receive and local/remote status. The SLOR is rated 30A/600V (continuous) with a circuit-breaker coil making ability of 95A-125VDC. UL interrupt ratings are 20A-120VAC, 15A-240VAC, 6A-600VAC, 3A-125VDC and 1A-250VDC. All Series 24 products meet the transient protection standards of IEEE C37.90.1 and IEC 61000-4-4 as well as IEEE C37.90.2, 90.3 and other applicable IEC Standards. The SLOR is available in 3, 5 or 8 decks, and each enclosed deck contains 2 N/O and 2 N/C contacts. Rotor contacts are double-wiping, silver inlay phosphor-bronze. The rotary and stationary contacts contain silver alloy contact surfaces that provide exceptionally low contact resistance over the life of the product for low level applications. Prices start at $400 for the serial communication option with four weeks delivery ARO. Electroswitch is the industry leader in the design, manufacture and marketing of robust, high quality switches, relays and other related electrical products for utility, industrial and military applications. The Electroswitch line of quality products is complemented by the company's proven ability and willingness to modify, custom design and qualify their switches and relays for virtually any application or environment. Electroswitch takes pride in meeting customer delivery requirements, no matter how stringent. For more information, contact Customer Service, Electroswitch, 180 King Avenue, Weymouth, MA 02188, TEL: (781) 335-5200, FAX: (781) 335-4253, E-mail:, Web:

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