RSG RMS-3T-KO SPDT Pull Station Key Operated

The RSG RMS-3T-KO is an SPDT terminal-block-connection manual pull station with the Key-Operated / Institutional (KO) option. Furthermore, it suits commercial fire alarm circuits in restricted-access facilities.

First, the KO configuration replaces the pull lever with a keyed actuator. Then, only staff carrying the key can activate the station. As a result, casual users cannot trigger the alarm.

In addition, KO is widely used in schools, correctional facilities, and behavioral-health units. However, key control depends entirely on site procedures. Therefore, confirm staffing and key-control practices before specifying.

RSG RMS-3T-KO Option Detail

The KO option replaces the standard pull handle with a keyed actuator. Furthermore, the SPDT switch supports normally-open and normally-closed contacts. As a result, the station only activates when an authorized key is inserted and turned.

RSG RMS-3T-KO Key Specifications

• Switch: 10 A snap-action, SPDT (single-pole double-throw)
• Connection: terminal block (screw terminals)
• Housing: die-cast painted enclosure
• Color: red, with raised lettering
• Mounting: standard 1-gang electrical box
• Used with or without break-glass rod (RMS-GR) — replacement requires no special tools
• Meets UL, FM, CSFM, and BSA requirements (per RSG)
• Configured options: Key-Operated / Institutional (KO)

Compatible Accessories

For surface mounting, use the RMS-BB indoor back box. Alternatively, use the RMS-DBB deep back box where extra depth is needed. In addition, the RMS-GR glass rod is the standard replacement rod for break-glass operation.

Order or Get Application Help

Life Safety Consultants has stocked RSG/Aames Security pull stations since 2002. To order the RSG RMS-3T-KO or confirm option fit, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.

For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com