ABB THF3267ARZ Spec-Setter Heavy Duty Safety Switch, 800A, 2-Pole, 600V, Fusible, NEMA 3R

ABB
SKU:
THF3267ARZ
$7,445.17
Current Stock:
Description

The ABB THF3267ARZ is an 800 A, 2-pole, 3-wire, 600 V AC fusible Spec-Setter heavy duty safety switch in a NEMA Type 3R outdoor enclosure. It is built for commercial and industrial disconnect applications where high performance and continuity of service matter: motor and feeder disconnects, service equipment, distribution in manufacturing plants, and outdoor equipment yards. The Z suffix designates the Build America, Buy America (BABA) compliant series manufactured in the United States.

Replacement for ABB TC72267R. The THF3267ARZ is the current-generation ABB successor to the TC72267R 800 A 2-pole 600 V fusible safety switch. Same ampere rating, pole count, voltage class and enclosure type. Confirm enclosure dimensions before a direct swap, as the new-generation enclosure differs from the legacy unit.

Key specifications

  • Ampere rating: 800 A
  • Voltage: 600 V AC, 250 V DC maximum, 50/60 Hz
  • Poles / wires: 2-pole, 3-wire
  • Enclosure: NEMA Type 3R outdoor
  • Accepts Class L fuses (factory standard); Class T fuse kit THT7A available
  • Short circuit rating: 200,000 rms symmetrical amps with Class L or Class T fuses
  • Line and load lugs: (3) 2 AWG to 750 kcmil or (6) 1/0 AWG to 300 kcmil, Cu/Al
  • Equipment ground kit: factory installed
  • Neutral kit: factory installed, groundable and bondable
  • Approximate enclosure dimensions: 68.26 in H x 32.44 in W x 11.37 in D (box)
  • Approximate weight: 260 lb

Certifications and standards

  • UL listed and cUL listed (UL 98 enclosed switches / CSA C22.2 No. 4)
  • Federal specification WS-865C
  • NEMA enclosed safety switch standard KS1
  • Seismic certified
  • Suitable for use as service entrance equipment when installed per UL 98 and applicable NEC requirements
  • Build America, Buy America Act (BABA) compliant series

Design features

  • Donut handle suited to hook stick operation, accepts three padlocks in the OFF position
  • Coin-proof, defeatable cover interlock
  • Direct-drive, quick-make, quick-break mechanism with positive ON/OFF indication
  • Clear line shield for visual confirmation of blade position on 600 V rated switches
  • Wide, unobstructed wiring gutter

Compatible accessories

  • THAUX67 auxiliary contact kit, DPDT, 15 A at 125/250/480 V AC, 2 A at 600 V AC
  • THT7A Class T fuse kit
  • THRPLHDL6A replacement handle, steel, 800 A NEMA 1 and 3R
  • THRPLLUG8A replacement single lug with hardware, 800 to 1200 A
  • THSHLD7A line shield replacement kit

Specifications from ABB Spec-Setter Safety Switches Catalog 1SQC920001C0201 Rev E (May 2026). Automation Distribution is an authorized ABB distributor.

Additional Information
Series:
Spec-Setter Heavy Duty (Type TH)
Amperage Rating:
800A
Voltage Rating:
600 VAC / 250 VDC
Number of Poles:
2
Number of Wires:
3
Fusing:
Fusible
Fuse Class:
L (T with THT7A kit)
Enclosure:
NEMA Type 3R
Short Circuit Rating:
200kA with Class L or T fuses
Ground Kit:
Factory installed
Neutral Kit:
Factory installed, groundable and bondable
cUL Service Entrance:
No
BABA Compliant:
Yes
Standards:
UL 98, CSA C22.2 No. 4, WS-865C, NEMA KS1
Replaces:
TC72267R