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How to Select a UL Listed 2-Wire Smoke for D4412/D6412

Issue

Is there a list of 2 wire smokes that will work with the D4412 and D6412?

Solution

Two-Wire Smoke Detectors

Two-wire smoke detectors must be evaluated for electrical compatibility and be UL Listed for use with the D6412/D4412.

Two-Wire Detector Specifications

The voltage range listed below is not intended for use by the installing company to determine compatibility. Voltage Range 8.0 VDC to 14.0 VDC. UL Compatibility Identifier Type B.

The control unit does not differentiate between multiple detectors in alarm. Detectors from different manufacturers must not be mixed on the same circuit. NFPA Style A (Class B) Circuit.

Sensor Loop 1 on the D6412/D4412 Control/Communicators is a NFPA Style A (Class B) Initiating Circuit suitable for connection of any fire alarm initiating device, including two-wire smoke detectors.

Manufacturer Detector Model Base Model Max # of Detectors on Zone 1

Bosch Security Systems

D262 D261A = 15

D263 N/A = 12

D263TH N/A = 12

D263S, D263THS* = 12

D285 D287/D288 = 12

D285TH D287/D288 = 12

D286 D287/D288 = 12

D603 D287/D288 = 12

D604 D287/D288 = 12

Radionics

D605 D287/D288 = 12

D262 D261A = 15

D263 N/A = 12

D263TH N/A = 12

D263S, D263THS* N/A = 12

D285 D287/D288 = 12

D285TH D287/D288 = 12

D286 D287/D288 = 12

D603 D287/D288 = 12

D604 D287/D288 = 12

DS

DS200 MB200-2W = 15

DS200HD MB200-2W = 15

DS250 MB2W, MB2WL = 12

DS250TH MB2W, MB2WL = 12

DS282 N/A = 12

DS282TH N/A = 12

DS282S, DS282THS* N/A = 12

DS260 MB2W = 12

DS230 MB2W = 12

DS230F MB2W = 12

DS233F MB2W = 12

ESL

1151 B110LP 10

1400 N/A 10

1451 B401B 10

2151 B110LP 10

2300B N/A 10

2300T N/A 10

2400 N/A 10

2400TH N/A 10

2451 B401B 10

System Sensor

2451TH B401B 10

422C N/A 15

422CT N/A 15

429CST N/A 10*

429CSST N/A 10*

* D132A Smoke Detector Reversing Module required.

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