United Electric Controls - H121 Series - Div. 1 & Nema 4X Pressure Switch

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 United Electric Controls H121 Series; NEMA 4X, 7 & 9 Pressure Switch; Class I Divisions 1& 2 Groups B, C and D; Class II Divisions 1 & 2 Groups E, F and G; Class III; One SPDT Output; Epoxy Coated Enclosure; External Adjustment with Reference Dial
Part Number
Description


H121-701
1/4"NPT Nickel Plated Brass Pressure Connection; Buna-N Diaphragm; 3 to 30 psi Adjustable Setpoint Range; 1 to 3 psi Fixed Deadband; 1000 psi Proof Pressure
[On Sale]
H121-144
1/4"NPT Nickel Plated Brass Pressure Connection; Brass Bellows; 0 to 20 psi Adjustable Setpoint Range; 0.1 to 0.5 psi Fixed Deadband; 25 psi Proof Pressure
[On Sale]
H121-146
1/4"NPT Nickel Plated Brass Pressure Connection; Brass Bellows; 0 to 30 psi Adjustable Setpoint Range; 0.1 to 0.6 psi Fixed Deadband; 40 psi Proof Pressure
[On Sale]
H121-453
1/4"NPT Aluminum Pressure Connection; Buna-N Diaphragm; 0 to 20 psi Adjustable Setpoint Range; 0.05 tp 0.2 psi Fixed Deadband; 225 psi Proof Pressure
[On Sale]
H121-454
1/4"NPT Aluminum Pressure Connection; Buna-N Diaphragm; 0 to 30 psi Adjustable Setpoint Range; 0.05 tp 0.3 psi Fixed Deadband; 225 psi Proof Pressure
[On Sale]
H121-S144B
1/2"NPT 316SS Pressure Connection; Welded 316SS Bellows; 0 to 20 psi Adjustable Setpoint Range; 0.1 to 0.5 psi Fixed Deadband; 25 psi Proof Pressure
[On Sale]
H121-S146B
1/2"NPT 316SS Pressure Connection; Welded 316SS Bellows; 0 to 30 psi Adjustable Setpoint Range; 0.1 to 0.6 psi Fixed Deadband; 40 psi Proof Pressure
[On Sale]
H121-553
1/4"NPT 316SS Pressure Connection; Teflon Diaphragm; 0 to 20 psi Adjustable Setpoint Range; 0.05 to 0.3 psi Fixed Deadband; 225 psi Proof Pressure
[On Sale]
H121-554
1/4"NPT 316SS Pressure Connection; Teflon Diaphragm; 0 to 30 psi Adjustable Setpoint Range; 0.1 to 0.4 psi Fixed Deadband; 225 psi Proof Pressure
[On Sale]

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