Honeywell MS-2 manual Specifications

Product Description Specifications

1.2 Specifications

AC Power - TB8

MS-2/MS-4: 120 VAC, 50/60 Hz, 2.3 amps

MS-2E/MS-4E: 240 VAC, 50 Hz, 1.15 amps

Wire size: minimum #14 AWG (2.0 mm2) with 600V insulation

Battery (sealed lead acid only) - J8

Maximum Charging Circuit - Normal Flat Charge: 27.6 VDC @ 0.8 amp

Maximum Charger Capacity: 18 Amp Hour battery (two 7 Amp Hour batteries can be housed in the FACP cabinet. Larger batteries require a separate battery box such as the Fire•Lite BB-17F)

Initiating Device Circuits - TB3

Alarm Zones 1 & 2 (MS-2 and MS-4)

Alarm Zones 3 & 4 (MS-4 only)

Power-limited circuitry

Operation: All zones Style B (Class B)

Normal Operating Voltage: Nominal 20 VDC, Maximum 27 VDC

Alarm Current: 15 mA minimum

Short Circuit Current: 40 mA maximum

Maximum Loop Resistance: 100 ohms

End-of-Line Resistor: 4.7KΩ, 1/2 watt (Part #71252)

Standby Current: 4 mA

Refer to Fire•Lite Device Compatibility Document for listed compatible devices

Notification Appliance Circuit(s) - TB21

One NAC on MS-2, two NACs on MS-4 Operation: Style Y (Class B) Power-limited Circuitry

Normal Operating Voltage: Nominal 24 VDC, Maximum 27 VDC

Maximum Signaling Current: 2.5 amps total with standard transformer. 5.0 amps total (2.5 amp maximum per NAC) with optional transformer on MS-4 only Maximum Line Impedance: 1.5 volt drop end-of-line

End-of-Line Resistor: 4.7KΩ, 1/2 watt (Part #71252)

Refer to Fire•Lite Device Compatibility Document for compatible listed devices

Form-C Relays

Trouble Relay TB5 (fail-safe)

Alarm Relay TB6

Supervisory Relay TB7 (MS-4 only)

Relay Contact Ratings: 2 amps @ 30 VAC (resistive)

Resettable Special Application Power - TB1

Operating Voltage: Nominal 24 VDC

Maximum Available Current: 500 mA - appropriate for powering 4-wire smoke detectors (see note 1)

Power-limited Circuitry

Refer to Fire•Lite Device Compatibility Document for compatible listed devices

Nonresettable Special Application Power - TB1 (MS-4 only)

Operating Voltage: Nominal 24 VDC

Maximum Available Current: 500 mA (see note 1)

Power-limited Circuitry

Refer to Fire•Lite Device Compatibility Document for compatible listed devices

1.Total current for resettable power and one Notification Appliance Circuit must not exceed 3.0 amps for the MS-2. Total current for nonresettable power, resettable power and two Notification Appliance Circuits must not exceed 6.0 amps for the MS-4 (requires optional second transformer)

12 MS-2/MS-4 PN 51512:E 01/18/05