Bosch SP4Z-A-B Specsheet

Fire Alarm Systems | SP4Z‑A/B Supervised Speaker Audio Splitter

SP4Z‑A/B Supervised Speaker Audio
Splitter

www.boschsecurity.com

u Expands one zone to two Class A zones or four

Class B zones

The Cooper Wheelock SAFEPATH4 SP4Z‑A/B is a
supervised two‑zone Class A or four‑zone Class B
speaker audio splitter. It enables a single supervised
speaker audio output to control up to two Class A
supervised speaker audio outputs or up to four Class B
supervised speaker audio outputs.

Certifications and approvals

Cooper Wheelock, Inc. holds these Listings and
Approvals:

Region Certification

USA UL UCST: Audible Signal Appliances, Gener-

al Siganal (UL464)

CSFM see our website

Installation/configuration notes

Compatibility Information

The splitter is compatible with the SP40/2 or SP40S,
the SPB‑80/4, the SPB‑160, and the SPB‑320.

u Operates at either 25 V or 70.7 V

u Provides power‑limited output circuitry

u Mounts inside the system enclosure

Mounting Considerations

The splitter mounts inside the system enclosures as
follows:

• One splitter mounts inside the SP40/2 or SP40S
enclosure, connected to the backplane in the upper
right-hand corner.

• One splitter mounts on an SPMB4Z Splitter Mounting
Bracket, connected over the power supply inside the
SPB‑80/4 enclosure.

• Two splitters mount on an SPMB4Z Splitter Mounting
Bracket, connected over the power supply inside the
SPB‑160 enclosure.

• Four splitters mount on two SPMB4Z Splitter
Mounting Brackets, connected over the power
supplies inside the SPB‑320 enclosure.

Notice

When the SP4Z‑A/B is mounted in an SP40/2 or
SP40S enclosure, the four‑wire mode cannot be
used.

Wiring Considerations

The terminals accept wiring from 22 AWG to 12 AWG
(ISO 0.34 mm2 to 4 mm2).

2 | SP4Z‑A/B Supervised Speaker Audio Splitter

Notice

A single splitter can be set for either Class A or
Class B operation, but not both.

Notice

A UL Listed end‑of‑line resistor (10 kΩ, 0.5 W)
must be placed on each unused zone to prevent
an open trouble condition.

Parts included

Quant. Component

1 Splitter

1 Hardware pack

1 Literature pack

Technical specifications

Electrical (Class A Circuit)

Current (alarm and standby): 15 mA at 24 VDC

Output Power (per zone): 40 W

Voltage (audio output): 24 VDC

Voltage (operating): 25.0 V or 70.7 V

Electrical (Class B Circuit)

Current (alarm and standby): 15 mA at 24 VDC

Output Power (per zone): 20 W

Voltage (audio output): 24 VDC

Voltage (operating): 25.0 V or 70.7 V

Trademarks

All hardware and software product names used in this
document are likely to be registered trademarks and
must be treated accordingly.

Ordering information

SP4Z‑A/B Supervised Speaker Audio Splitter

A supervised two‑zone Class A or four‑zone Class B
speaker audio splitter that enables a single supervised
speaker audio output to control up to two Class A
supervised speaker audio outputs or up to four Class B
supervised speaker audio outputs.

Order number SP4Z-A/B

Accessories

SPMB4Z Speaker Splitter Mounting Bracket

Supports two audio splitters

Order number SPMB4Z