477/477TC/477ST

EN 15540 30 min, EN 45545 HL2 for R22 (internal) and HL3 for R23 (external)

Additional information

Part Number	477-4, 477-5, 477-6, 477-8, 477-10, 477-12, 477-16 477TC-4, 477TC-5, 477TC-6, 477TC-8, 477TC-10, 477TC-12, 477TC-16 477ST-4, 477ST-5, 477ST-6, 477ST-8, 477ST-10, 477ST-12, 477ST-16 477RH-4, 477RH-5, 477RH-6, 477RH-8, 477RH-10, 477RH-12, 477RH-16