Relay is an electrical control device. It has a control system (also known as the input circuit) and the control system (also known as the output circuit) the interaction between. Often used in automatic control circuit, it is actually with a small current to control high current operation of an "automatic switch." It plays in the circuit automatically adjust security, conversion circuitry and so on.
SR-30 System 3 Supplementary Relay TM • Dual Inputs • Placement Supervised • SPDT Configuration • Listed, FM, CSFM Approved Description The supplementary relay module, model SR-30 is It shall contain two independent 24 VDC relays, fitted designed to activate or deactivate, as desired, external with SPDT contacts with a rating of 3 Amp. (120 VAC devices such as door releases, fan shut-down, extin- or 30 VDC). Each relay shall have dual input screw guishing system release, audible alarms, etc. Actua- terminals for flexibility of programming. Relay output tion of the unit may come from the system control screw type terminals shall also be provided on the panel, a ZN or ZU zone module, an SM switching face of the module. module, or any other module with appropriate alarm output. The unit shall be placement supervised and shall be Underwriters Laboratories, Inc. listed. The module is fitted with two independent, 24 VDC relays, each of which provides a set of single pole, double throw (SPDT) contacts, rated 120 VAC or 30 Electrical Information VDC, 3 amp each. Current Requirement: Relays de-energized - None Relays energized - 45mA each Actuation for each relay is from a high resistance transistor input circuit, requiring a high going DC signal from between 12 and 24 volts above system common. Ordering Information Dual input actuation terminals are provided for each relay to facilitate programming. The model SR-30 is placement supervised, providing a system trouble signal upon removal from the system. The unit is Underwriters Laboratories Inc. listed. Engineer & Architect Specifications For the control of external devices, there shall be provided a Siemens Fire Safety supplementary relay module, model SR-30. This module shall be system interconnected by a ten- pin plug and harness assembly and shall be operable with the main control panel. CATALOG NUMBER 3121 NOTICE: The use of other than Siemens Fire Safety detectors and bases with Siemens Fire Safety equipment will be considered a misapplication of Siemens Fire Safety equipment and as such void all warranties either expressed or implied with regard to loss, damage, liabilities and/or service problems. Fire Safety Fire Safety 8 Fernwood Road 2 Kenview Boulevard Florham Park, NJ 07932 8/05 Brampton, Ontario Tel: (973) 593-2600 5M Canada L6T 5E4 Siemens Building Technologies FAX: (973) 593-6670 SFS-IG Tel: (905) 799-9937 August 2005 Fire Safety Website: www.sbt.siemens.com/fis Printed in U.S.A. FAX: (905) 799-9858 Supersedes sheet dated 12/04
Pages to are hidden for
"System 3TM Supplementary Relay"Please download to view full document