What power supply replaces the PS 873 - 4TD?

The standard Von Duprin PS873 power supply was replaced by the PS914 power supply.
NOTE: The newer PS900 option cards can NOT be used in the PS873 power supplies. The PS873 option cards also can NOT be used in the newer PS900 series power supplies.

Attached tables are power supply cross reference, power supply option board and power supply option board compatibility.

PS900-Model

PS900-Summary Legacy Supply (PS873)
PS902                

2AMP @ 12/24VDC

1 option board connector

1 fire alarm connector

1 battery board plug

505 (1AMP @ 12/24VDC)

510 (@AMP @ 24VDC)

861 (2AMP @ 12VDC, 1AMP @ 24VDC)

PS904

4AMP @ 12/24VDC

2 option board connectors

1 battery board connector

510 (3AMP @ 12VDC)

873 (4AMP @ 12VDC, 2AMP @ 24VDC) - no inrush app's

SBB-3 (24VDC @ 3AMP)

PS906

6AMP @ 12/24VDC

3 option board connectors

1 battery board connector

515 (5AMP @ 24VDC)

SBB-5 (5AMP @ 24VDC)

515 (10AMP @ 12VDC) - no exact match

SBB-2- (10AMP @ 24VDC) - no exact match

PS914

12/24VDC @ 4AMP Hi Inrush

2 option board connectors

1 battery board connector

PS873 (2AMP @ 24VDC, 4AMP @ 12VDC) Hi Inrush

Table 1: POWER SUPPLY CROSS REFERENCE LIST

PS900- Model PS900-Summary Legacy supply (PS873)
900-2RS 2 zone control with sequencing 871-2 board
900-2Q 2 zone control for QEL 2Q board
900-4R 4 relay control, no timing or logic DCM, RCM
900-4RL(4TD,AO & SI) 4 relay control with logic - field programmable 4TD, SI, AO, DCM + TDM, RCM + TDM
900-8F 8 fused 4AMP max outputs NEW
900-8P 8 PTC 1.8AMP output NEW
900-BBK battery backup w/ batteries 873-BB
900-FA fire alarm FA, EIR

Table 2: POWER SUPPLY OPTION BOARD

Option Board Von Duprin PS914 Schlage PS902, PS904, PS906
900-2RS Yes No
900-2Q Yes Yes
900-4R Yes Yes
900-4RL Yes Yes
900-8F Yes Yes
900-8P Yes Yes
900-BBK Yes Yes
900-FA Yes Yes

Table 3: POWER SUPPLY OPTION BOARD COMPATIBILITY


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