EJB34030SA Square D 30 Amp 3-Pole E-Frame Breaker, 480Y/277V, Bolt-On, 120V Shunt Trip

EJB34030SA Square D 30 Amp 3-Pole E-Frame Breaker, 480Y/277V, Bolt-On, 120V Shunt Trip

Wiring a shunt trip branch device into an NF panelboard? Square D built the EJB34030SA as a Type EJB E-Frame unit at 30 A, three pole, 480Y/277 V AC, and it bolts to the interior like the rest of the E-Frame line. Budget four pole spaces instead of three, because the factory shunt trip module rides in the extra space and cannot be added later in the field.

Terminations are aluminum lugs sized for AWG 12 to 6 aluminum or AWG 14 to 6 copper, torqued to 30.09 lbf-in. Feed the shunt coil from a 120 V AC control source inside the 110-130 V AC window. Breaking capacity runs 65 kA on 480Y/277 V AC and 100 kA on 120/240 V AC, and the trip flag tells you which device let go before you start pulling covers.

Common Applications

• Three-phase branch protection inside Square D NF lighting panelboards
• Tying a panel circuit to a fire alarm, emergency stop, or remote trip signal
• Metal halide and high pressure sodium lighting runs, covered by the HID rating
• Rooftop units and other HACR rated equipment loads

Key Features

• Shunt trip built in at the factory: SA means a 120 V AC coil, 110-130 V AC control range, no field installation.
• Four spaces required: The accessory pushes a three-pole device out to four spaces.
• Thermal-magnetic protection: 875 A at the trip unit with 270 A of holding current.
• Trip flag on the face: Local signalling for faster troubleshooting at the panel.

Specifications

• Brand: Square D (Schneider Electric)
• Catalog Number: EJB34030SA
• Product Type: Type EJB E-Frame miniature circuit breaker
• Range: 125 A Frame EDB-EGB-EJB
• Line Rated Current: 30 A
• Number of Poles: 3
• Maximum Operating Voltage: 480Y/277 V AC
• Breaking Capacity: 65 kA at 277 V AC and 480Y/277 V AC, 100 kA at 240 V AC, 120 V AC, and 120/240 V AC
• Breaking Capacity Code: J
• Trip Unit: Thermal-magnetic, 875 A rating, 270 A holding current
• Device Composition: Shunt trip
• Mounting Mode: Bolt-on, 4 pole spaces required
• Product Destination: NF panelboard
• Electrical Connection: Aluminum lugs, AWG 12 to 6 aluminum, AWG 14 to 6 copper
• Tightening Torque: 30.09 lbf-in (3.4 N.m)
• Ambient Calibration: 40 deg C (104 deg F)
• Certifications: cULus, HID rated, HACR rated

Product Identification

• Country of Origin: United States
• Product Size and Weight: 5.66 in H x 3.92 in W x 4.05 in D, 4 lb
• Package Size and Weight: 9.9 in L x 6.2 in W x 6.3 in H, 4.34 lb
• GTIN/UPC: 785901594598

FAQ

What voltage does the shunt coil need? Square D specifies 120 V AC for the SA shunt trip, control range 110-130 V AC.

Can the shunt trip be added later? No. Square D supplies E-Frame electrical accessories factory-installed only.

How much room does it take? Four pole spaces, one more than a three-pole E-Frame device without an accessory.

What are the lug torque and wire ranges? Torque to 30.09 lbf-in with AWG 12 to 6 aluminum or AWG 14 to 6 copper.

Which panelboards is it built for? Square D lists NF panelboards as the product destination.