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ABB - Electrification S804U-Z40 - S804U-Z40 4 Pole Z Characteristic 40A 50kA 240/415VAC High Performance Circuit Breaker HPCB
ABB - Electrification

S804U-Z40


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Overview

The ABB S804U-Z40 is a UL 489-listed 4-pole high-performance circuit breaker (HPCB) designed for branch circuit protection in industrial and commercial electrical systems. This breaker features a Z-characteristic trip curve, optimized for rapid response to short-circuit conditions, making it ideal for protecting sensitive electronic equipment where fast fault clearance is critical. With a rated current of 40A and an interrupting capacity of 50kA at 240/415VAC, the S804U-Z40 delivers reliable fault current management in demanding applications. Engineered for compatibility with 240V AC systems, the S804U-Z40 supports single conductor copper wiring per terminal, rated for 60/75°C or 60°C wire, with AWG ranges from 14 AWG–2 AWG (40–63A) or 1/0 AWG–8 AWG (70–80A). The breaker’s 4-pole configuration ensures complete isolation of all phases, enhancing safety during maintenance and fault conditions. Dimensions are 95mm (H) x 142mm (W) x 45mm (D), with a standardized 106mm mounting depth. The S804U-Z40 is part of ABB’s S800U-Z series, a UL 489-certified line of branch protection devices. Its Z-characteristic trip curve provides precise short-circuit protection, minimizing downtime and equipment damage. Suitable for industrial power distribution, data centers, and commercial facilities, this breaker combines durability with compliance to global electrical standards.
  • UL 489-listed 4-pole circuit breaker for branch circuit protection
  • Z-characteristic trip curve for rapid short-circuit response
  • Rated 40A with 50kA interrupting capacity at 240/415VAC
  • Supports single conductor copper wiring (14 AWG–2 AWG or 1/0 AWG–8 AWG)
  • Dimensions: 95mm (H) x 142mm (W) x 45mm (D), 106mm mounting depth

Specifications

Amperage Rating
40 A
Application
Mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 V AC and 220 V DC. The contactors can also be used for many other applications such as bypass, capacitor switching, lighting, DC power circuits.
Connection Type
Screw Terminal
Current Rating
40 A
Mounting Type
Standardized 106mm mounting depth
Number of Poles
4
Poles
4P
Poles
4
Series
S804U
Series
S800U
Series
S800U-Z
Size
95mm (H) x 142mm (W) x 45mm (D)
Size
82x110x108mm
Special Features
S804U-Z40 4 Pole Z Characteristic 40A 50kA 240/415VAC High Performance Circuit Breaker HPCB
Standard
IEC/EN 60947-2 / UL 489 / CSA C22.2 No.5
Standard
RoHs, CSA, cUL, CE, GOST
Trip Type
Z
Type
Contactors
Voltage Rating
(240 V AC)
Voltage Rating
240/415 VAC
Package Dimensions (L x W x H)
4.37 IN x 4.13 IN x 3.9 IN
Package Dimensions (L x W x H)
11.0998 cm x 10.4902 cm x 9.906 cm
Package Weight (Imperial)
2.230 L
Package Weight (Metric)
1.012 kg
Ground Lug

DNGL

Ground Lug
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

Frequently Asked Questions

What is the interrupting rating for the S804U-Z40?

The interrupting rating is according to UL 60947-2, 250V AC, 25 kA.

What is the rated voltage of the S804U-Z40?

The rated voltage is 240/120 VAC.

What is the rated current for this circuit breaker?

The rated current is 40 A.

What standards does the S804U-Z40 comply with?

It complies with IEC/EN 60947-2 and UL 489.

What is the tripping characteristic of the S804U-Z40?

The tripping characteristic is Z.

What is the power loss for the S804U-Z40?

The power loss is 12 W.

Frequently Asked Questions about ABB - Electrification

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