Comparison : Item # B1E1B1, B1E Series 1-Pole and 1 Ampere (A) Rated Current Supplementary Protector
Item # B1E1B1.6, B1E Series 1-Pole and 1.6 Ampere (A) Rated Current Supplementary Protector
Item # B1E1B2, B1E Series 1-Pole and 2 Ampere (A) Rated Current Supplementary Protector
Item # B1E1B3, B1E Series 1-Pole and 3 Ampere (A) Rated Current Supplementary Protector
Item # B1E1B4, B1E Series 1-Pole and 4 Ampere (A) Rated Current Supplementary Protector